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Recent studies have shown that the extramuscular connective tissue (ECT) is thickened and stiffened in delayed onset muscle soreness (DOMS). However, contrarily to the normal population, severe DOMS is rare in athletes or highly trained individuals. The present randomized, controlled trial therefore aimed to investigate pain as well as microcirculation and stiffness of the ECT and the erector spinae muscle following submaximal eccentric trunk extension exercise not causing DOMS. The effect of manual treatment by a therapist (myofascial release; MFR) on these parameters was to be studied. Trained healthy participants (n = 21; 31.3 ± 9.6 years; > 4 h exercise per week) performed submaximal eccentric exercise of the trunk extensors. One group was manually treated (n = 11), while the other group (n = 10) received placebo treatment with sham laser therapy. Stiffness of the ECT and the erector spinae muscle (shear wave elastography), microcirculation (white light and laser Doppler spectroscopy), palpation pain (100 mm visual analogue scale, VAS) and pressure pain threshold (indentometry, PPT) were assessed before (t0), 24 h (t24) and 48 h (t48) after conditions. Erector spinae muscle stiffness increased after eccentric exercise from t0 to t24 (0.875 m/s) and from t0 to t48 (0.869 m/s). After MFR, erector spinae muscle stiffness decreased in contrast to placebo treatment at t24 (-0.66 m/s), while ECT stiffness remained unchanged. Oxygen saturation increased (17-20.93%) and relative haemoglobin decreased (-9.1 - -12.76 AU) after eccentric exercise and MFR differed from placebo treatment at t48 (-3.71 AU). PPT differed after MFR from placebo treatment at t48 (20.69 N/mm), while VAS remained unchanged. Multiple linear regression showed that ECT stiffness and group membership predicted erector spinae muscle stiffness. MFR could have a positive effect on pain, microcirculation and muscle stiffness after submaximal eccentric exercise, suggesting better recovery, which needs to be confirmed by future work.
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Ejercicio Físico , Microcirculación , Mialgia , Humanos , Microcirculación/fisiología , Adulto , Masculino , Femenino , Mialgia/terapia , Mialgia/fisiopatología , Ejercicio Físico/fisiología , Manipulaciones Musculoesqueléticas/métodos , Región Lumbosacra/irrigación sanguínea , Región Lumbosacra/fisiología , Adulto Joven , Músculo Esquelético/irrigación sanguínea , Músculo Esquelético/fisiología , Umbral del Dolor/fisiología , Torso/fisiología , Dimensión del Dolor , Músculos Paraespinales/fisiología , Músculos Paraespinales/diagnóstico por imagen , Músculos Paraespinales/irrigación sanguíneaRESUMEN
INTRODUCTION: Protracted febrile myalgia syndrome (PFMS) is a rare manifestation of familial Mediterranean fever (FMF), characterized by myalgia, fever and elevated inflammatory markers lasting several weeks. As the hallmark of FMF are short episodes of disease symptoms, the long duration of PFMS may lead to a delayed diagnosis and treatment. OBJECTIVES: 1. To perform a review of literature and rheumatology textbooks focused on clinical features and treatment of PFMS in children. 2. To present our own case. METHODS: All articles in Pub Med generated using the keywords "protracted febrile myalgia" and information on PFMS in seven rheumatology textbooks were collected. The systematic review was supplemented with our own case presentation. RESULTS: In total, 18 articles with 78 pediatric patients (including our own) were retrieved. More than half of the patients presented with PFMS as the first manifestation of FMF. All complained of myalgia, 65% of abdominal pain and 26% had a rash. Corticosteroids (CS) were effective in 77%. In all CS-refractory cases, anakinra was shown efficient. MRI was used in 5 patients and showed myositis in all of them. The scrutiny of seven rheumatology textbooks showed that PFMS presenting with myalgia was mentioned in six. Possible accompanying symptoms were described only once, the long duration of symptoms twice, the efficacy of corticosteroids three times and anakinra only once. The presented 6 year old patient manifested with fever, myalgia, abdominal pain and petechial rash lasting 6 weeks. She had undergone multiple diagnostic procedures before her parents mentioned a positive family history for FMF. The subsequent genetic testing confirmed a homozygosity for M694V pathogenic variant in the MEFV gene. CONCLUSION: The long duration of PFMS may be misleading to clinicians especially if PFMS occurs at manifestation of FMF. The fact that more than half of the reported patients experienced PFMS as the presenting symptom of FMF is one of the key findings of our study. Our case presentation demonstrates the importance of genetic testing early in suspected autoinflammatory diseases. Furthermore, MRI may be an important diagnostic tool showing myositis in PFMS.
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Fiebre Mediterránea Familiar , Fiebre , Mialgia , Humanos , Fiebre Mediterránea Familiar/complicaciones , Fiebre Mediterránea Familiar/diagnóstico , Mialgia/etiología , Niño , Femenino , Fiebre/etiología , Masculino , Adolescente , Síndrome , Preescolar , Imagen por Resonancia Magnética/métodosRESUMEN
Haff disease was first described at the beginning of the twentieth century in Europe. Almost a century later, thousands of cases have now been reported in different countries. In Brazil, most cases are observed in the Amazon region, and its associated factors remain to be fully understood. This disease is an uncommon syndrome characterized by intense myalgia and rhabdomyolysis, which manifests within 24 h after consuming some types of freshwater or saltwater fish and crustaceans. A possible heat-stable toxin contained in seafood may be the cause of Haff disease, but this hypothesis is not yet completely proven. This review will describe the clinical and epidemiological aspects of Haff disease with updated literature.
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Rabdomiólisis , Humanos , Animales , Mialgia/etiología , Brasil/epidemiologíaRESUMEN
Long COVID has been linked to a decline in physical activity and functional capacity. However, it remains unclear which physical symptoms are associated with specific aspects of movement behaviors and functional capacity. We aimed to investigate the associations of fatigue, dyspnea, post-exertional malaise, myalgia, and the co-occurrence of symptoms with movement behaviors and functional capacity in individuals with Long COVID. A cross-sectional multicenter study was conducted. Questionnaires were used to assess fatigue, dyspnea, post-exertional malaise, and myalgia. Accelerometry was employed to assess sedentary time, steps per day, light physical activity, and moderate-to-vigorous physical activity. The six-minute walk test, 30-s chair stand test, and timed up and go were used to assess functional capacity. One hundred and two community-dwelling individuals who had been living with Long COVID for 15 ± 10 months participated in the study. Fatigue, post-exertional malaise, and the co-occurrence of physical symptoms showed a negative association with step count, while post-exertional malaise was also negatively associated with moderate-to-vigorous physical activity. Dyspnea showed a negative association with the functional score, including all tests. Our findings suggest that fatigue, post-exertional malaise, and the co-occurrence of physical symptoms are negatively associated with physical activity, while dyspnea is negatively associated with functional capacity in individuals with Long COVID.
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Acelerometría , COVID-19 , Disnea , Ejercicio Físico , Fatiga , Humanos , Masculino , Femenino , COVID-19/fisiopatología , COVID-19/complicaciones , Estudios Transversales , Persona de Mediana Edad , Fatiga/fisiopatología , Anciano , Disnea/fisiopatología , Síndrome Post Agudo de COVID-19 , SARS-CoV-2/aislamiento & purificación , Movimiento , Encuestas y Cuestionarios , Mialgia/fisiopatología , AdultoRESUMEN
Tart cherry (TC) consumption has become a popular nutritional strategy for recovery, particularly for the attenuation of markers associated with muscle damage. However, there are relatively few studies that have examined an acute dosing strategy. The aim of this pilot study was to explore the feasibility of using powdered Vistula TC for recovery following a bout of muscle-damaging exercise. Twenty-two recreationally active participants (mean ± SD age, stature, and mass were 23 ± 3 years old, 173 ± 10 cm, and 74 ± 17 kg, respectively) performed 40 (5 sets of 8 repetitions) maximal lengthening contractions of the elbow flexors. The participants were randomised to receive either a spray-dried TC extract or a calorie-matched placebo (12 TC, 10 placebo) for 4 days in total, starting on the day of exercise. Dependent measures of maximal voluntary contraction (MVC), muscle soreness (assessed via visual analogue scales; VAS), pain pressure threshold (PPT), range of motion (ROM), and upper arm limb girth were taken at baseline (pre), 24, 48, and 72 h post damaging exercise. There were significant changes over time among all the variables (MVC, VAS, PPT, ROM, and girth, p ≤ 0.014). There were no significant differences between the conditions for any of the variables (MVC, VAS, PPT, ROM, and girth, p > 0.3). The TC group did not recover at an accelerated rate compared to the placebo. This study provides initial insights into the use of powdered Vistula TC and its effect following strenuous (damaging) exercise bouts. Vistula TC did not improve recovery when taken acutely following a bout of damaging exercise to the elbow flexors.
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Estudios de Factibilidad , Músculo Esquelético , Mialgia , Rango del Movimiento Articular , Humanos , Masculino , Adulto Joven , Adulto , Mialgia/prevención & control , Músculo Esquelético/fisiología , Proyectos Piloto , Ejercicio Físico/fisiología , Prunus avium , Extractos Vegetales/administración & dosificación , Método Doble Ciego , Contracción Muscular , Femenino , Codo/fisiologíaRESUMEN
Increasing evidence suggests that activation of muscle nerve afferents may inhibit central motor drive, affecting contractile performance of remote exercising muscles. Although these effects are well documented for metaboreceptors, very little is known about the activation of mechano- and mechanonociceptive afferents on performance fatigability. Therefore, the purpose of the present study was to examine the influence of mechanoreceptors and nociceptors on performance fatigability. Eight healthy young males undertook four randomized experimental sessions on separate occasions in which the experimental knee extensors were the following: 1) resting (CTRL), 2) passively stretched (ST), 3) resting with delayed onset muscle soreness (DOMS), or 4) passively stretched with DOMS (DOMS+ST), whereas the contralateral leg performed an isometric time to task failure (TTF). Changes in maximal voluntary contraction (ΔMVC), potentiated twitch force (ΔQtw,pot), and voluntary muscle activation (ΔVA) were also assessed. TTF was reduced in DOMS+ST (-43%) and ST (-29%) compared with CTRL. DOMS+ST also showed a greater reduction of VA (-25% vs. -8%, respectively) and MVC compared with CTRL (-28% vs. -45%, respectively). Rate of perceived exertion (RPE) was significantly increased at the initial stages (20-40-60%) of the TTF in DOMS+ST compared with all conditions. These findings indicate that activation of mechanosensitive and mechanonociceptive afferents of a muscle with DOMS reduces TTF of the contralateral homologous exercising limb, in part, by reducing VA, thereby accelerating mechanisms of central fatigue.NEW & NOTEWORTHY We found that activation of mechanosensitive and nociceptive nerve afferents of a rested muscle group experiencing delayed onset muscle soreness was associated with reduced exercise performance of the homologous exercising muscles of the contralateral limb. This occurred with lower muscle voluntary activation of the exercising muscle at the point of task failure.
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Mecanorreceptores , Fatiga Muscular , Músculo Esquelético , Mialgia , Nociceptores , Humanos , Masculino , Músculo Esquelético/inervación , Músculo Esquelético/fisiología , Mecanorreceptores/fisiología , Mecanorreceptores/metabolismo , Adulto Joven , Nociceptores/fisiología , Mialgia/fisiopatología , Adulto , Ejercicio Físico/fisiología , Contracción Muscular , Contracción IsométricaRESUMEN
Animal studies consistently demonstrate that testosterone is protective against pain in multiple models, including an animal model of activity-induced muscle pain. In this model, females develop widespread muscle hyperalgesia, and reducing testosterone levels in males results in widespread muscle hyperalgesia. Widespread pain is believed to be mediated by changes in the central nervous system, including the rostral ventromedial medulla (RVM). The enzyme that converts testosterone to estradiol, aromatase, is highly expressed in the RVM. Therefore, we hypothesized that testosterone is converted by aromatase to estradiol locally in the RVM to prevent development of widespread muscle hyperalgesia in male mice. This was tested through pharmacological inhibition of estrogen receptors (ERs), aromatase, or ER-α in the RVM which resulted in contralateral hyperalgesia in male mice (C57BL/6J). ER inhibition in the RVM had no effect on hyperalgesia in female mice. As prior studies show modulation of estradiol signaling alters GABA receptor and transporter expression, we examined if removal of testosterone in males would decrease mRNA expression of GABA receptor subunits and vesicular GABA transporter (VGAT). However, there were no differences in mRNA expression of GABA receptor subunits of VGAT between gonadectomized and sham control males. Lastly, we used RNAscope to determine expression of ER-α in the RVM and show expression in inhibitory (VGAT+), serotonergic (tryptophan hydroxylase 2+), and µ-opioid receptor expressing (MOR+) cells. In conclusion, testosterone protects males from development of widespread hyperalgesia through aromatization to estradiol and activation of ER-α which is widely expressed in multiple cell types in the RVM.
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Estradiol , Hiperalgesia , Bulbo Raquídeo , Ratones Endogámicos C57BL , Mialgia , Animales , Masculino , Estradiol/farmacología , Bulbo Raquídeo/metabolismo , Bulbo Raquídeo/efectos de los fármacos , Hiperalgesia/metabolismo , Ratones , Femenino , Mialgia/metabolismo , Receptor alfa de Estrógeno/metabolismo , Aromatasa/metabolismo , Testosterona/farmacología , Inhibidores de la Aromatasa/farmacologíaRESUMEN
BACKGROUND: Patients with immune-mediated rheumatic diseases (IMRDs) have been prioritized for COVID-19 vaccination to mitigate the infection severity risks. Patients with rheumatoid arthritis (RA) are at a high risk of severe COVID-19 outcomes, especially those under immunosuppression or with associated comorbidities. However, few studies have assessed the safety of the COVID-19 vaccine in patients with RA. OBJECTIVE: To evaluate the safety of vaccines against SARS-CoV-2 in patients with RA. METHODS: This data are from the study "Safety and Efficacy on COVID-19 Vaccine in Rheumatic Diseases," a Brazilian multicentric prospective phase IV study to evaluate COVID-19 vaccine in IMRDs in Brazil. Adverse events (AEs) in patients with RA of all centers were assessed after two doses of ChAdOx1 (Oxford/AstraZeneca) or CoronaVac (Sinovac/Butantan). Stratification of postvaccination AEs was performed using a diary, filled out daily and returned at the end of 28 days for each dose. RESULTS: A total of 188 patients with RA were include, 90% female. CoronaVac was used in 109 patients and ChAdOx1 in 79. Only mild AEs were observed, mainly after the first dose. The most common AEs after the first dose were pain at the injection (46,7%), headache (39,4%), arthralgia (39,4%), myalgia (30,5%) and fatigue (26,6%), and ChAdOx1 had a higher frequency of pain at the injection (66% vs 32 %, p < 0.001) arthralgia (62% vs 22%, p < 0.001) and myalgia (45% vs 20%, p < 0.001) compared to CoronaVac. The more common AEs after the second dose were pain at the injection (37%), arthralgia (31%), myalgia (23%), headache (21%) and fatigue (18%). Arthralgia (41,4% vs 25%, p = 0.02) and pain at injection (51,4% vs 27%, p = 0.001) were more common with ChAdOx1. No serious AEs were related. With Regard to RA activity level, no significant difference was observed between the three time periods for both COVID-19 vaccines. CONCLUSION: In the comparison between the two immunizers in patients with RA, local reactions and musculoskeletal symptoms were more frequent with ChAdOx1 than with CoronaVac, especially after the first dose. In summary, the AE occurred mainly after the first dose, and were mild, like previous data from others immunizing agents in patients with rheumatoid arthritis. Vaccination did not worsen the degree of disease activity.
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Artritis Reumatoide , Vacunas contra la COVID-19 , COVID-19 , ChAdOx1 nCoV-19 , Humanos , Artritis Reumatoide/tratamiento farmacológico , Artritis Reumatoide/complicaciones , Femenino , Masculino , Brasil/epidemiología , Persona de Mediana Edad , COVID-19/prevención & control , COVID-19/complicaciones , Vacunas contra la COVID-19/efectos adversos , Vacunas contra la COVID-19/administración & dosificación , ChAdOx1 nCoV-19/efectos adversos , Estudios Prospectivos , Adulto , SARS-CoV-2/inmunología , Anciano , Cefalea/inducido químicamente , Cefalea/etiología , Mialgia/inducido químicamente , Mialgia/etiología , Artralgia/etiología , Vacunas de Productos InactivadosRESUMEN
OBJECTIVE: The aim of this study was to conduct a comprehensive evaluation of the rehydration efficacy of QSBYD and elucidate its potential underlying mechanism. DESIGN: 38 participants were randomly assigned to receive either QSBYD or placebo before and after exercise and heat-induced dehydration. Hydration indicators were measured over time. Blood tests assessed cellular anaerobic respiration metabolites, serum inflammatory markers, and coagulation markers. Perceptual measures of thirst, fatigue, and muscular soreness were also taken. RESULTS: QSBYD consumption resulted in lower urine volume (Control vs. QSBYD: 260.83 ± 167.99 ml vs. 187.78 ± 141.34 ml) and smaller decrease in percentage of nude body weight change from baseline (Control vs. QSBYD: -0.52 ± 0.89% vs. -0.07 ± 0.52%). Although no significant differences in urine specific gravity, QSBYD resulted in reduced urine volume at 120 min, suggesting improved fluid retention. Furthermore, QSBYD resulted in lower levels of IL-1ß (Control vs. QSBYD: 2.40 ± 0.68 vs. 1.33 ± 0.66 pg/mL), suggesting QSBYD may provide benefits beyond hydration. CONCLUSION: Further investigation into the underlying mechanisms and long-term effects of QSBYD on hydration is warranted. QSBYD may be an effective alternative to commercial sports drinks in mitigating dehydration effects.
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Deshidratación , Medicamentos Herbarios Chinos , Ejercicio Físico , Fluidoterapia , Calor , Interleucina-1beta , Humanos , Deshidratación/terapia , Deshidratación/prevención & control , Fluidoterapia/métodos , Masculino , Ejercicio Físico/fisiología , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/administración & dosificación , Interleucina-1beta/sangre , Adulto Joven , Femenino , Adulto , Sed/efectos de los fármacos , Mialgia/prevención & control , Mialgia/tratamiento farmacológico , Mialgia/terapia , Fatiga/prevención & control , Fatiga/tratamiento farmacológicoRESUMEN
We aimed to assess high-density surface electromyography (HDsEMG)-torque relationships in the presence of delayed onset trunk muscle soreness (DOMS) and the effect of these relationships on torque steadiness (TS) and lumbar movement during concentric/eccentric submaximal trunk extension contractions. Twenty healthy individuals attended three laboratory sessions (24 h apart). HDsEMG signals were recorded unilaterally from the thoracolumbar erector spinae with two 64-electrode grids. HDsEMG-torque signal relationships were explored via coherence (0-5 Hz) and cross-correlation analyses. Principal component analysis was used for HDsEMG-data dimensionality reduction and improvement of HDsEMG-torque-based estimations. DOMS did not reduce either concentric or eccentric trunk extensor muscle strength. However, in the presence of DOMS, improved TS, alongside an altered HDsEMG-torque relationship and kinematic changes were observed, in a contraction-dependent manner. For eccentric trunk extension, improved TS was observed, with greater lumbar flexion movement and a reduction in δ-band HDsEMG-torque coherence and cross-correlation. For concentric trunk extensions, TS improvements were observed alongside reduced thoracolumbar sagittal movement. DOMS does not seem to impair the ability to control trunk muscle force, however, perceived soreness induced changes in lumbar movement and muscle recruitment strategies, which could alter motor performance if the exposure to pain is maintained in the long term.
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Electromiografía , Ejercicio Físico , Mialgia , Humanos , Masculino , Mialgia/fisiopatología , Mialgia/etiología , Adulto , Femenino , Ejercicio Físico/fisiología , Fenómenos Biomecánicos , Torque , Adulto Joven , Contracción Muscular/fisiología , Músculo Esquelético/fisiopatología , Músculo Esquelético/fisiología , Región Lumbosacra/fisiopatología , Torso/fisiopatología , Vértebras Lumbares/fisiopatologíaRESUMEN
The purpose was to clarify the effect of individualised post-exercise blood flow restriction (PE-BFR) on measures of recovery following strenuous resistance exercise. Twenty resistance-trained adults were randomised to a PE-BFR or control (CON) group and completed a fatigue protocol of five sets of 10 repetitions of maximal intensity concentric and eccentric seated knee extension exercise. Participants then lied supine with cuffs applied to the upper thigh and intermittently inflated to 80% limb occlusion pressure (PE-BFR) or 20 mmHg (CON) for 30 min (3 × 5 min per leg). Peak torque (PT), time-to-peak torque (TTP), countermovement jump height (CMJ), muscle soreness (DOMS) and perceived recovery (PR) were measured pre-fatigue, immediately post-fatigue and at 1, 24, 48 and 72 h post-fatigue. Using a linear mixed-effect model, PE-BFR was found to have greater recovery of CMJ at 48 h (mean difference [MD]=-2.8, 95% confidence interval [CI] -5.1, 0.5, p = 0.019), lower DOMS at 48 (MD = 3.0, 95% CI 1.2, 4.9, p = 0.001) and 72 h (MD = 1.95, 95% CI -1.2, 1.5, p = 0.038) and higher PR scores at 24 (MD = -1.7, 95% CI -3.4, -0.1, p = 0.038), 48 (MD = -3.1, 95% CI -4.8, -1.5, p < 0.001) and 72 h (MD = -2.2, 95% CI -3.8, -0.5, p = 0.011). These findings suggest that individualised PE-BFR accelerates recovery after strenuous exercise.
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Mialgia , Flujo Sanguíneo Regional , Entrenamiento de Fuerza , Torque , Humanos , Entrenamiento de Fuerza/métodos , Masculino , Mialgia/fisiopatología , Flujo Sanguíneo Regional/fisiología , Adulto Joven , Femenino , Adulto , Fatiga Muscular/fisiología , Músculo Esquelético/irrigación sanguínea , Músculo Esquelético/fisiología , Terapia de Restricción del Flujo SanguíneoRESUMEN
BACKGROUND: Pelvic pain worsened by orgasm is a poorly understood symptom in patients with endometriosis. AIM: To assess the prevalence of pelvic pain worsened by orgasm in patients with endometriosis and explore its association with potential etiologic factors, including pelvic floor myalgia, uterine tenderness and adenomyosis, and central nervous system sensitization. METHODS: An analysis was done of a prospective data registry based at a tertiary referral center for endometriosis. Eligible participants were patients aged 18 to 50 years who were referred between January 1, 2018, and December 31, 2019, diagnosed with endometriosis, and subsequently underwent surgery at the center. Clinical features were compared between participants reporting worsening pelvic pain with orgasm and those without worsening pain with orgasm, including patient-reported variables, physical examination findings, and anatomic phenotyping at the time of surgery. Pelvic floor myalgia and uterine tenderness were assessed by palpation on pelvic examination, adenomyosis by ultrasound, and central nervous system sensitization via the Central Sensitization Inventory (range, 0-100). OUTCOMES: Outcomes included pelvic or lower abdominal pain in the last 3 months that worsened with orgasm (yes/no). RESULTS: Among 358 participants with endometriosis, 14% (49/358) reported pain worsened by orgasm while 86% (309/358) did not. Pain with orgasm was significantly associated with pelvic floor myalgia (55% [27/49] vs 35% [109/309]; Cohen's h = 0.40, P = .01) and higher scores on the Central Sensitization Inventory (mean ± SD, 53.3 ± 17.0 vs 42.7 ± 18.2; Cohen's d = 0.60, P < .001) but not with uterine tenderness or adenomyosis. Other clinical features associated with pain with orgasm were poorer sexual health (higher scores: deep dyspareunia, Cohen's h = 0.60; superficial dyspareunia, Cohen's h = 0.34; and Female Sexual Distress Scale-Revised, Cohen's d = 0.68; all P < .05) and poorer mental health (higher scores: Patient Health Questionnaire-9, 12.9 ± 6.7 vs 9.1 ± 6.3, Cohen's d = 0.59, P < .001; Generalized Anxiety Disorder-7, 9.4 ± 5.6 vs 6.8 ± 5.5, Cohen's d = 0.48, P = .002). Anatomic findings at the time of surgery did not significantly differ between the groups. CLINICAL IMPLICATIONS: Interventions targeting pelvic floor myalgia and central nervous system sensitization may help alleviate pain worsened by orgasm in patients with endometriosis. STRENGTHS AND LIMITATIONS: A strength is that pain worsened by orgasm was differentiated from dyspareunia. However, pain with orgasm was assessed by only a binary question (yes/no). Also, the study is limited to a single center, and there were limited data on sexual function. CONCLUSION: Pelvic pain exacerbated by orgasm in people with endometriosis may be related to concurrent pelvic floor myalgia and central sensitization.
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Endometriosis , Orgasmo , Dolor Pélvico , Humanos , Femenino , Endometriosis/complicaciones , Endometriosis/fisiopatología , Adulto , Dolor Pélvico/etiología , Dolor Pélvico/fisiopatología , Persona de Mediana Edad , Estudios Prospectivos , Adenomiosis/complicaciones , Adenomiosis/fisiopatología , Mialgia/etiología , Mialgia/fisiopatología , Sensibilización del Sistema Nervioso Central/fisiología , Adulto Joven , Diafragma Pélvico/fisiopatología , Prevalencia , AdolescenteRESUMEN
Skin temperature responses have been advocated to indicate exercise-induced muscle soreness and recovery status. While the evidence is contradictory, we hypothesize that the presence of muscle damage and the time window of measurement are confounding factors in the skin temperature response. The objective was to determine whether skin temperature is influenced by different workloads and the time course of temperature measurements over the following 24 h. 24 trained male military were assigned to one of three groups: GC group (n = 8) serving as control not performing exercises, GE group (n = 8) performing a simulated military combat protocol in an exercise track with different obstacles but designed not to elicit muscle damage, and the GEMD group (n = 8) performing the simulated military combat protocol plus 5 sets of 20 drop jumps, with 10-sec between repetitions and with 2-min of rest between sets aiming to induce muscle damage. Skin temperature was measured using infrared thermography before exercise (Pre) and 4 (Post4h), 8 (Post8h) and 24h (Post24h) post-exercise. Perception of pain (DOMS) was evaluated Pre, Post24h, and Post48h, and countermovement jump height was evaluated at Pre and Post24h. DOMS did not differ between groups in the Pre and Post24h measures but GEMD presented higher DOMS than the other groups at Post48h (p < 0.001 and large effect size). Jump height did not differ for GEMD and GC, and GE presented higher jump height at Post24h than GC (p = 0.02 and large effect size). Skin temperature responses of GEMD and GG were similar in all measurement moments (p > 0.22), and GE presented higher skin temperature than the GC and the GEMD groups at Post24h (p < 0.01 and large effect sizes). In conclusion, although physical exercise elicits higher skin temperature that lasts up to 24 h following the efforts, muscle soreness depresses this response.
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Ejercicio Físico , Mialgia , Temperatura Cutánea , Humanos , Masculino , Adulto , Mialgia/fisiopatología , Adulto Joven , Personal MilitarRESUMEN
INTRODUCTION: Coronavirus disease 19 (COVID-19) affected the health-related quality of life (HRQoL), and its impact on well-being is not sufficiently understood yet. The worsening of HRQoL and symptoms such as fatigue, anxiety, depression, chronic Headache, Myalgia, ageusia, olfactory disorders, and cognitive impairment can be seen in people of different ages and genders after COVID-19 infection, even mild infections without hospitalization. These issues generate a disease burden that can reduce work skills and cause social, psychological, and neuropsychiatric challenges. OBJECTIVE: To evaluate the HRQoL of patients affected by COVID-19, the domains most affected, and their relationship with fatigue, anxiety, depression, chronic Headache and Myalgia, ageusia, olfactory disorders, and cognitive impairment. METHODS: An analytical transverse was conducted with 143 patients after COVID-19 infection. The patient-reported outcomes measures (PROMS) were collected by the 36-item Short Form survey (SF-36), Fatigue Severity Scale (FSS), Hospital Anxiety and Depression Scale (HADS), Mini-Mental State Examination-2 (MMSE-2), Symbol Digit Modalities Test (SDMT), and a questionnaire regarding symptoms such as chronic Headache, myalgia, and olfactory disorders. Spearman's correlation test was used to correlate the performance of the patients on different PROMS. RESULTS: Fatigue, depression, and anxiety were negatively correlated with all the SF-36 domains, and patients with subjective cognitive complaints had low scores in all SF-36 domains. Furthermore, those with chronic Headaches had low scores in physical functioning, role-physical functioning, and vitality. Regarding myalgia complaints, the worst scores were observed in the physical functioning and vitality domains. Patients with ageusia had low scores in general health perceptions, and those with olfactory dysfunction had low scores in the vitality and mental health domains. CONCLUSIONS: Although the acute phase of COVID-19 has resolved, knowledge about HRQoL after this period is essential since many individual and collective changes have been taking place until today-patients with neuropsychiatric manifestations that persisted after the acute phase showed lower overall quality of life.
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COVID-19 , Depresión , Fatiga , Calidad de Vida , Humanos , COVID-19/psicología , Calidad de Vida/psicología , Masculino , Femenino , Persona de Mediana Edad , Adulto , Ansiedad/psicología , Disfunción Cognitiva/fisiopatología , Anciano , Mialgia , Medición de Resultados Informados por el Paciente , Ageusia , Trastornos del Olfato , SARS-CoV-2 , CefaleaRESUMEN
Dengue is among the most important mosquito-borne viral diseases worldwide. Although its acute manifestations are well known, little is known about the long-term impact of dengue on the population's health status. Madeira Island experienced a single outbreak of autochthonous dengue from September 2012 to March 2013. To extend our knowledge about the clinical impact of the outbreak on this naive population, we applied an online questionnaire to 168 adults diagnosed with dengue at the time to characterize retrospectively their symptoms during the infection and to identify long-term manifestations, possibly triggered by dengue. The most frequent symptoms during the clinical period, reported by more than three-quarters of our participants, were fever, myalgia, extreme tiredness, and headaches, whereas vomiting, pruritus, nausea, retro-orbital pain, and arthralgia occurred in 35% to 50% of participants. In the 8 years after dengue, 61.5% of participants reported at least one recurrent previously nonexistent symptom, the most frequent being headaches, abundant hair loss, extreme tiredness, arthralgia, and myalgia, experienced by 25% to 35% of participants. Nearly 20% of the participants with persistent symptoms reported the onset of chronic illness in the 4 years after dengue, most frequently ophthalmological and autoimmune diseases (5.6% each), versus only 2.2% of chronic disease onset in participants without persistent symptoms. Our results suggest that the occurrence of persistent symptoms after primary dengue might be more frequent than anticipated and may persist for several years, having an impact on the health status and well-being of a considerable proportion of the infected population.
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Dengue , Estado de Salud , Humanos , Adulto , Estudios Retrospectivos , Masculino , Femenino , Portugal/epidemiología , Dengue/epidemiología , Encuestas y Cuestionarios , Persona de Mediana Edad , Mialgia/epidemiología , Adulto Joven , Brotes de Enfermedades , Anciano , Artralgia/epidemiología , Adolescente , Cefalea/epidemiología , Fiebre/epidemiología , Fatiga/epidemiologíaRESUMEN
Pain can be defined as an unpleasant sensory and emotional experience associated with or resembling that associated with actual or potential tissue damage. Though consistent with this definition, different types of pain result in different behavioural and psychophysiological responses. For example, the transient, non-threatening, acute muscle pain element of exercise-induced pain (EIP) is entirely different from other pain types like delayed onset muscle soreness, muscular injury or chronic pain. However, studies often conflate the definitions or assume parity between distinct pain types. Consequently, the mechanisms through which pain might impact exercise behaviour across different pain subcategories may be incorrectly assumed, which could lead to interventions or recommendations that are inappropriate. Therefore, this review aims to distinguish EIP from other subcategories of pain according to their aetiologies and characteristics, thereby providing an updated conceptual and operational definition of EIP. Secondly, the review will discuss the experimental pain models currently used across several research domains and their relevance to EIP with a focus on the neuro-psychophysiological mechanisms of EIP and its effect on exercise behaviour and performance. Finally, the review will examine potential interventions to cope with the impact of EIP and support wider exercise benefits. HIGHLIGHTS: What is the topic of this review? Considerations for future research focusing on exercise-induced pain within endurance exercise settings. What advances does it highlight? An updated appraisal and guide of research concerning exercise-induced pain and its impact on endurance task behaviour, particularly with reference to the aetiology, measurement, and manipulation of exercise-induced pain.
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Ejercicio Físico , Dolor , Resistencia Física , Humanos , Ejercicio Físico/fisiología , Resistencia Física/fisiología , Dolor/fisiopatología , Mialgia/fisiopatología , Dimensión del Dolor/métodos , AnimalesRESUMEN
BACKGROUND: Magnesium is a micronutrient and an intracellular cation responsible for different biochemical reactions involved in energy production and storage, control of neuronal and vasomotor activity, cardiac excitability, and muscle contraction. Magnesium deficiency may result in impaired physical performance. Moreover, magnesium plays an important role on delayed onset muscle soreness after training. Thus, physically active individuals and sport specialists have to pay attention to magnesium supplementation (MgS). However, the type, timing and dosage of magnesium intake are not well elucidated yet. Hence, we aimed to systematically review the literature regarding the effects of MgS on muscle soreness in physically active individuals. We focused exclusively on MgS, excluding those studies in which magnesium was administered together with other substances. METHODS: Three electronic databases and literature sources (PUBMED, SCOPUS and Web of Sciences-Core Collection) were searched, in accordance with PRISMA guidelines. After the database search, 1254 articles were identified, and after excluding duplicates, 960 articles remained. Among these, 955 were excluded following the title and abstract screening. The remaining 5 articles were screened in full text and 4 study met the eligibility criteria. RESULTS: These studies showed that MgS reduced muscle soreness, improved performance, recovery and induced a protective effect on muscle damage. CONCLUSION: To reach these positive effects, individuals engaged in intense exercise should have a Mg requirement 10-20% higher than sedentary people, to be taken in capsules and 2 h before training. Moreover, it is suggested to maintain magnesium levels in the recommended range during the off-season. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration number: CRD42024501822.
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Suplementos Dietéticos , Ejercicio Físico , Magnesio , Mialgia , Humanos , Masculino , Magnesio/administración & dosificación , Magnesio/farmacología , Mialgia/tratamiento farmacológicoRESUMEN
OBJECTIVES: To investigate the most common concomitant symptoms and the urgent demand of solution in the breast cancer patients undergoing postoperative endocrine treatment, as well as the acceptance and expectation of acupuncture in the patients so as to provide the scientific data for promoting the application of acupuncture in the breast cancer patients. METHODS: Breast cancer patients treated in Tianjin Medical University Cancer Institute and Hospital from January 2022 to March 2023 were randomly selected as the subjects. Using "questionnaire star" website, the questionnaire was conducted to investigate the relevant concomitant symptoms of the patients in postoperative endocrine treatment and the questions related to acupuncture treatment. RESULTS: In this study, 229 questionnaires were distributed and 211 valid ones were collected, with the response rate of 92.1%. Among these patients, the first three common symptoms were sleep disorders (157 cases, 74.4%), hot flashes (138 cases, 65.4%) and joint / muscle pain (118 cases, 55.9%)ï¼the top three symptoms to be solved the most urgently were sleep disorders (131 cases, 62.1%), joint / muscle pain (62 cases, 29.4%) and hot flashes (45 cases, 21.3%). 79.1% of the patients (167 cases) were willing to receive acupuncture treatment because of the high expectations on its potential effect (93%). 20.9% of them (44 cases) refused acupuncture because they were worried not to be treated by the experienced physicians of TCM (52%) or afraid of needling feelings (48%). The average expectation value of acupuncture treatment was 4.02 points (5 points for the total score) among patients willing to receive acupuncture treatment. The main purposes of receiring acupuncture for the patients undergoing endocrine treatment were to strengthen the immune function (92%), reduce the adverse reactions (83%), and improve the physical condition (75%), et al. CONCLUSIONS: Sleep disorder is one of the most concerned symptoms in endocrine treatment for the patients after breast cancer surgery. The patients highly expect for acupuncture treatment even though some patients dislike the needling sensation. How to provide the acceptable and high-quality acupuncture services for cancer patients will be one of the major directions of acupuncture research in the future.
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Terapia por Acupuntura , Neoplasias de la Mama , Trastornos del Sueño-Vigilia , Humanos , Femenino , Neoplasias de la Mama/terapia , Neoplasias de la Mama/cirugía , Persona de Mediana Edad , Estudios Transversales , Adulto , Trastornos del Sueño-Vigilia/terapia , Trastornos del Sueño-Vigilia/etiología , Encuestas y Cuestionarios , Anciano , Sofocos/terapia , Mialgia/terapia , Mialgia/etiología , Adulto JovenRESUMEN
OBJECTIVES: Meta-analysis was conducted to examine the effect of supplemental curcumin intake on skeletal muscle injury status and to propose an optimal intervention program. METHODS: In accordance with the procedures specified in the PRISMA statement for systematic reviews and meta-analyses of randomized controlled trials, the Review Manager 5.3 was used to analyze the results of creatine kinase (CK), muscle soreness, interleukin-6 (IL-6), and range of motion (ROM) as outcome indicators in the 349 subjects included in the 14 articles. RESULTS: The effect size of curcumin supplementation on muscle soreness, mean difference (MD) = -0.61; the relationship between curcumin supplementation and muscle soreness for time of measurement (I2 = 83.6%)ãthe relationship between curcumin supplementation and muscle soreness for period of intervention (I2 = 26.2%)ãthe relationship between whether one had been trained (I2 = 0%) and supplementation dose (I2 = 0%) were not heterogeneous for the relationship between curcumin supplementation and muscle soreness; The effect size on CK, MD = -137.32; the relationship between curcumin supplementation and CK (I2 = 79.7%)ãintervention period (I2 = 91.9%)ãwhether or not trained (I2 = 90.7%)ãand no heterogeneity in the relationship between curcumin supplementation and CK for the time of measurement (I2 = 0%); The effect size MD = 4.10 for the effect on ROM; The effect size for IL-6 was MD = -0.33. CONCLUSIONS: This meta-analysis highlights that curcumin supplementation significantly mitigates skeletal muscle damage, with notable improvements in CK levels, muscle soreness, IL-6 levels, and ROM. The results highlight the importance of curcumin dosage and timing, revealing that prolonged supplementation yields the best results, especially for untrained individuals or those less exposed to muscle-damaging exercise. For muscle soreness and ROM enhancement, a pre-emptive, low-dose regimen is beneficial, while immediate post-exercise supplementation is most effective at reducing CK and IL-6 levels.
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Creatina Quinasa , Curcumina , Suplementos Dietéticos , Interleucina-6 , Músculo Esquelético , Mialgia , Curcumina/farmacología , Curcumina/administración & dosificación , Curcumina/uso terapéutico , Humanos , Músculo Esquelético/efectos de los fármacos , Músculo Esquelético/lesiones , Músculo Esquelético/metabolismo , Mialgia/tratamiento farmacológico , Creatina Quinasa/sangre , Interleucina-6/sangre , Interleucina-6/metabolismo , Rango del Movimiento Articular/efectos de los fármacosRESUMEN
A patient had bilateral leg edema, insomnia, myalgias, paresthesias in the fingertips, lighter pigmentation of the facial skin compared with other areas of the body, proteinuria, and an elevated creatinine level. What is the diagnosis and what would you do next?