RESUMEN
OBJECTIVE: This systematic review aimed to answer the question: "What are the risk and protective factors for shoulder complaints (pain, injury, or problem) in indoor volleyball players?". METHODS: Searches were conducted in electronic databases: PubMed/MEDLINE, Embase, CINAHL, and SPORTDiscus, as well as reference lists of the included studies. We included studies evaluating potential intrinsic and extrinsic factors associated with shoulder complaints in indoor volleyball players of any country, age, sex, and competitive level. The Quality in Prognosis Studies (QUIPS) tool was used to assess the risk of bias. RESULTS: The risk factors for shoulder complaints in volleyball players were identified through four prospective studies, which exhibited a moderate to low risk of bias. These factors included previous shoulder pain or injury, playing in outside and opposite positions, subacromial bursa thickening, and having an average external rotator (ER) isokinetic eccentric torque lower than the average internal rotator (IR) concentric torque. Protective factors were enhancing shoulder IR and ER isokinetic eccentric strength, being male sex, being older, and maintaining a concentric strength ratio ER/IR within the 0.60-0.75 range. CONCLUSIONS: This systematic review highlights risk factors that clinicians and researchers should consider when assessing and tracking indoor volleyball players.
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Articulación del Hombro , Voleibol , Masculino , Humanos , Femenino , Hombro , Voleibol/lesiones , Factores Protectores , Estudios Prospectivos , Fuerza Muscular , Músculo EsqueléticoRESUMEN
BACKGROUND: Volleyball is among the five most popular sports in the world. Regardless of level and age, volleyball athletes perform fast high-impact movements such as jumps, landings, and changes in direction, demanding motor and sensory skills to avoid injuries. The available scientific literature provides information regarding the incidence of injuries in volleyball, but the evidence of injuries in young volleyball athletes (12-18 years old) is not well defined. Therefore, a systematic review was conducted to investigate the incidence and prevalence of injuries in young volleyball players. METHODS: This systematic review was conducted according to the PRISMA recommendations and prospectively registered in PROSPERO (ID: CRD42022344623). An electronic search was conducted in the following databases: Web of Science, PubMed, and SportDiscuss via EBSCO in August 2022 and March 2023. Inclusion criteria followed the PICOS acronym: (P) youth volleyball players; (I) volleyball; (C) none; (O) incidence and/or prevalence of injury; and (S) cohort studies. The risk of bias was analysed using the adapted STROBE instrument. RESULTS: Five studies were included in the qualitative analysis. They had a mean methodological quality of 6 (range 4-8) on the modified STROBE scale. Injury incidence was presented in varying ways, ranging from 1.51 injuries/1000 player hours to 12.4 injuries/10,000 athlete exposures (AEs). The prevalence was 1.6 ± 1.7 per 100 AEs. A total sample of 3698 youth volleyball athletes predominantly females was found. The body sites with the highest rate of injuries were the ankle, the distal portion of the upper limbs (wrist/hand/fingers) and the knee, respectively. CONCLUSION: There was remarkable variability in the rate of injuries and the form of presentation between the studies. In addition, junior volleyball athletes had lower injury rates compared to other sports practised in high school, and older athletes had higher injury rates.
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Traumatismos del Tobillo , Traumatismos en Atletas , Voleibol , Femenino , Adolescente , Humanos , Niño , Masculino , Voleibol/lesiones , Traumatismos en Atletas/epidemiología , Instituciones Académicas , Atletas , Traumatismos del Tobillo/epidemiología , IncidenciaRESUMEN
Objectives: Poor knee alignment during the deceleration phase of closed kinetic chain movements, such as landings, is a relevant risk factor for injuries in sports. This study assessed the knee alignment and possible associated factors in young Brazilian volleyball athletes Methods: One hundred and seventeen athletes of both genders (9-19 years old) were assessed during a drop jump for the observation of knee alignment. Chi-square test was used to describe the association between poor knee alignment and: gender, age category (≤14 years and ≥15 years), sports experience, participation in competitions, the presence of knee pain during training, and history of lower limb injury Results: Seventy percent of athletes presented poor knee alignment, which was slightly associated with a sports experience lower than one year. Conclusion: Thus, considering the high number of volleyball practitioners and its strong presence in physical education classes, preventive measures should be adopted for young volleyball athletes of both genders, especially in the sports initiation phase.
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Traumatismos en Atletas/epidemiología , Articulación de la Rodilla/fisiopatología , Traumatismos de la Pierna/epidemiología , Voleibol/lesiones , Adolescente , Adulto , Brasil , Niño , Femenino , Humanos , Masculino , Rango del Movimiento Articular , Factores de Riesgo , Adulto JovenRESUMEN
El vóley es un deporte popular con aproximadamente dos millones de profesionales en el mundo, clásicamente se describe como una práctica con bajos índices de lesiones. El nivel profesional hace que muchos deportistas convivan con dolor y esta adaptación podría influir en la incidencia de lesiones. En el siguiente trabajo intentamos realizar una descripción de las lesiones evaluadas en la selección mayor de vóley masculina. Se realizó un seguimiento desde 2014 hasta 2016. Se evaluaron 78 deportistas, con 37 lesiones, en 21.812 horas de exposición. Los resultados fueron: 1,69 LESIONES CADA MIL HORAS. Con predominio de las lesiones musculares. El índice de lesiones durante los partidos fue mayor que el de los entrenamientos. En el seguimiento anual detectamos un marcado descenso de las lesiones musculares en 2016. Comparando nuestra experiencia con los reportes mundiales encontramos diferencias en las frecuencias de los diagnósticos. Nuestros reportes muestran a las alteraciones musculares como principal causa de lesión contrastando, con lo reportado en otros trabajos donde fueron los esguinces. En nuestra opinión esto podría obedecer a los trabajos de prevención que se realizan desde las categorías juveniles. En conclusión, nuestros índices de lesión son similares a los reportados internacionalmente pero varían en el tipo de lesión. Queremos remarcar la importancia en documentar la evolución de las patologías para tener un estrecho seguimiento de las mismas y adoptar medidas de cambio a tiempo
Volleyball is a popular sport with approximately two million professionals worldwide, classically described as a practice with low injury rates. The professional level causes many athletes to live with pain and this adaptation could influence the incidence of injuries. In the next paper we try to make a description of the injuries evaluated in the major selection of male volleyball. Follow-up was made from 2014 to 2016. 78 athletes, with 37 injuries, were evaluated at 21,812 hours of exposure. The results were: 1.69 INJURY EVERY THOUSAND HOURS. Predominantly with muscle injuries. The injury rate during the matches was May than that of the training. In the annual follow-up we detected a marked decrease in muscle injuries in 2016. Comparing our experience with global reports we find differences in diagnostic frequencies. Our reports show muscle disturbances as the main cause of injury contrasting with reports by other authors where the sprains were. In our opinion this could be due to the prevention work carried out from he youth categories. In conclusion our injury rates are similar to those reported internationally but vary in the type of injury. We want to emphasize the importance in documenting the evolution of pathologies in order to closely monitor them and take measures in time
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Traumatismos en Atletas , Voleibol/lesiones , Factores de Tiempo , IncidenciaRESUMEN
BACKGROUND: Tendinopathy pathogenesis is associated with inflammation. Regulatory T (Treg) cells contribute to early tissue repair through an anti-inflammatory action, with the forkhead box P3 (FOXP3) transcription factor being essential for Treg function, and the FC-receptor-like 3 (FCRL3) possibly negatively regulating Treg function. FCRL3 -169T>C and FOXP3 -2383C>T polymorphisms are located near elements that regulate respective genes expression, thus it was deemed relevant to evaluate these polymorphisms as risk factors for tendinopathy development in athletes. METHODS: This case-control study included 271 volleyball athletes (146 tendinopathy cases and 125 controls) recruited from the Brazilian Volleyball Federation. Genotyping analyses were performed using TaqMan assays, and the association of the polymorphisms with tendinopathy evaluated by multivariate logistic regression. RESULTS: Tendinopathy frequency was 63% patellar, 22% rotator cuff and 15% Achilles tendons respectively. Tendinopathy was more common in men (OR = 2.87; 95% CI = 1.67-4.93). Higher age (OR = 8.75; 95% CI = 4.33-17.69) and more years of volleyball practice (OR = 8.38; 95% CI = 3.56-19.73) were risk factors for tendinopathy. The FCRL3 -169T>C frequency was significantly different between cases and controls. After adjustment for potential confounding factors, the FCRL3 -169C polymorphism was associated with increased tendinopathy risk (OR = 1.44; 95% CI = 1.02-2.04), either considering athletes playing with tendon pain (OR = 1.98; 95% CI = 1.30-3.01) or unable to train due to pain (OR = 1.89; 95% CI = 1.01-3.53). The combined variant genotypes, FCRL3 -169TC or -169CC and FOXP3 -2383CT or -2383TT, were associated with an increased risk of tendinopathy among athletes with tendon pain (OR = 2.24; 95% CI: 1.14-4.40 and OR = 2.60; 95% CI: 1.11-6.10). The combined analysis of FCRL3 -169T>C and FOXP3 -2383C>T suggests a gene-gene interaction in the susceptibility to tendinopathy. CONCLUSIONS: FCRL3 -169C allele may increase the risk of developing tendinopathy, and together with knowledge of potential risk factors (age, gender and years playing) could be used to personalize elite athletes' training or treatment in combination with other approaches, with the aim of minimizing pathology development risk.
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Predisposición Genética a la Enfermedad/genética , Polimorfismo de Nucleótido Simple/genética , Receptores Inmunológicos/genética , Tendinopatía/genética , Adolescente , Adulto , Alelos , Atletas , Brasil , Estudios de Casos y Controles , Femenino , Genotipo , Humanos , Masculino , Factores de Riesgo , Voleibol/lesiones , Adulto JovenRESUMEN
Introducción: El recto abdominal (RA), es un musculo par, acintado, que tiene como principales funciones la flexión del tronco y la estabilidad del Core. Su desgarro se asocia al deporte de elite y lanzadores, mayormente vinculado con el tenis y su servicio según publicaciones. En voleibol se repiten ciclos de hiperextensión del tronco con sobrecarga excéntrica y consecuente hipertrofia asimétrica del RA contralateral al brazo dominante, asiento de la lesión muscular. Materiales y métodos: Se realizó un estudio descriptivo, retrospectivo de una serie de motivos de consulta de jugadores de la Selección Nacional Argentina masculina mayor de voleibol durante el período comprendido entre 2015 y 2017. Se clasificaron las lesiones en función del retorno al deporte según Paús V. y Torrengo. Los deportistas con desgarro de RA, fueron agrupados evaluando las variables: brazo dominante, RA lesionado, tipo de lesión muscular, gesto deportivo involucrado, situación de competencia durante la lesión, lesión abdominal previa. Resultados: Se evaluaron 386 motivos de consulta, los jugadores centrales fueron los que más consultaron, en el contexto general de lesiones se clasificaron los 10 motivos principales de consulta, las lesiones musculares funcionales (contracturas) fueron las más frecuentes (n97, 25%), el desgarro de RA fue la lesión muscular estructural predominante por encima del gastrocnemio. 6 casos de lesión aguda y 1 caso de recurrencia, la mayoría durante el gesto de ataque y en competencia. Conclusión: De lo analizado en los registros la lesión muscular representó el 42% del total de las lesiones, el desgarro tiene predominio en el recto abdominal representando el 32% de total de las lesiones musculares estructurales. Nivel de evidencia: IV
Introduction: The rectus abdominis (RA), is a pair, curved muscle, whose main functions are trunk flexion and Core stability. His strain is associated with the sport of elite and pitchers, mostly linked to tennis and its service according to publications. In volleyball, cycles of hyperextension of the trunk with eccentric sebrecharge and consequent asymmetric hypertrophy of the RA contralateral to the dominant arm, seat of the muscle injury, are repeated. Materials and methods: A descriptive, retrospective study of a series of reasons for consultation of players of the Argentine National Men's Volleyball Team during the period between 2015 and 2017 was carried out. The injuries were classified according to the return to sport criteria by Páus V. and Torrengo F. The athletes with RA strain were grouped evaluating following variables: Dominant arm, injured RA, type of muscle injury, sports gesture involved, competition situation at injury time, previous abdominal lesion. Results: We evaluated 386 reasons for consultation, the central players were the most consulted, in the general context of injuries were classified the 10 main reasons for consultation, muscle functional injuries (contractures) were the most frequent (n97, 25%), the RA strain was the predominant structural muscle lesion above the gastrocnemius. 6 case of acute injury and 1 case of recurrence. most during the attack gesture and in competition. Conclusion: From the analyzed in the registers the muscular injury represented 42% of the total of the injuries, the strain has predominance in the rectus abdominus representing 32% of the total of the muscular structural injuries. Level of evidence: IV
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Adolescente , Adulto , Traumatismos en Atletas , Recto del Abdomen/lesiones , Músculo Esquelético/lesiones , Voleibol/lesiones , IncidenciaRESUMEN
OBJECTIVES: To compare the hip, knee and ankle torques, as well as knee and ankle flexibility between athletes with patellar tendinopathy and asymptomatic controls. DESIGN: Cross-sectional study. SETTING: Laboratory setting. PARTICIPANTS: Fourteen male volleyball, basketball or handball athletes, divided into 2 groups, patellar tendinopathy group (TG; n = 7) and asymptomatic control group (CG; n = 7). MAIN OUTCOME MEASURES: Hip, knee and ankle isometric torques were measured with a handheld dynamometer. Weight-bearing ankle dorsiflexion, hamstring and quadriceps flexibility were measured with a gravity inclinometer. RESULTS: The TG had 27% lower hip extensor torque when compared to the CG (P = 0.031), with no group differences in knee and ankle torques (P > 0.05). Also, the TG had smaller weight-bearing ankle dorsiflexion (P = 0.038) and hamstring flexibility (P = 0.006) when compared to the CG. Regarding quadriceps flexibility, no group differences were found (P = 0.828). CONCLUSIONS: Strength and flexibility deficits might contribute to a greater overload on the knee extensor mechanism, possibly contributing to the origin/perpetuation of patellar tendinopathy. Interventions aiming at increasing hip extensors strength as well as ankle and knee flexibility might be important for the rehabilitation of athletes with patellar tendinopathy.
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Traumatismos en Atletas/fisiopatología , Extremidad Inferior/fisiología , Fuerza Muscular/fisiología , Rótula/fisiopatología , Tendinopatía/fisiopatología , Adolescente , Adulto , Baloncesto/lesiones , Fenómenos Biomecánicos/fisiología , Estudios Transversales , Humanos , Contracción Isométrica/fisiología , Masculino , Dinamómetro de Fuerza Muscular , Rango del Movimiento Articular/fisiología , Torque , Voleibol/lesiones , Soporte de Peso/fisiologíaRESUMEN
OBJECTIVES: To investigate the association between lower limb alignment, range of motion/flexibility and muscle strength with the presence of patellar tendon abnormalities in male athletes. DESIGN: This was a cross-sectional study. METHODS: Thirty-one male basketball and volleyball athletes were assessed for ankle dorsiflexion range of motion, shank-forefoot alignment, iliotibial band flexibility, hip external rotators and abductors isometric torque, passive hip internal rotation range of motion and frontal plane knee and patellar alignment (McConnell and Arno angles). Ultrasonographic evaluations of hypoechoic areas of the patellar tendons were performed in longitudinal and transverse planes. A receiver operating characteristic curve was used to determine clinically relevant cut-off point for each variable. When the area under the curve was statistically significant, Prevalence Ratio (PR) and 95% confidence intervals were calculated to indicate the strength of the association between the independent variable and the presence of patellar tendon abnormalities. RESULTS: Receiver operating characteristic curve showed that iliotibial band flexibility (p=0.006), shank-forefoot alignment (p=0.013) and Arno angle (p=0.046) were associated with patellar tendon abnormalities. Cut-off points were established and only the Prevalence Ratio of iliotibial band flexibility (cut-off point=-0.02°/kg; PR=5.26) and shank-forefoot alignment (cut-off point=24°; PR=4.42) were statistically significant. CONCLUSIONS: Athletes with iliotibial band or shank-forefoot alignment above the clinically relevant cut-off point had more chance to have patellar tendon abnormalities compared to athletes under the cut-off point values. These results suggest that such factors could contribute to patellar tendon overload, since patellar tendon abnormalities indicate some level of tissue damage. Both factors might be considered in future prospective studies.
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Traumatismos en Atletas/patología , Ligamento Rotuliano/patología , Adulto , Traumatismos en Atletas/fisiopatología , Baloncesto/lesiones , Estudios Transversales , Humanos , Masculino , Fuerza Muscular , Ligamento Rotuliano/lesiones , Ligamento Rotuliano/fisiopatología , Rango del Movimiento Articular , Voleibol/lesiones , Adulto JovenRESUMEN
OBJECTIVES: To investigate whether genetic variants can be correlated with tendinopathy in elite male volleyball athletes. DESIGN: Case-control study. METHODS: Fifteen single nucleotide polymorphisms within BMP4, FGF3, FGF10, FGFR1 genes were investigated in 138 elite volleyball athletes, aged between 18 and 35 years, who undergo 4-5h of training per day: 52 with tendinopathy and 86 with no history of pain suggestive of tendinopathy in patellar, Achilles, shoulder, and hip abductors tendons. The clinical diagnostic criterion was progressive pain during training, confirmed by magnetic resonance image. Genomic DNA was obtained from saliva samples. Genetic markers were genotyped using TaqMan real-time PCR. Chi-square test compared genotypes and haplotype differences between groups. Multivariate logistic regression analyzed the significance of covariates and incidence of tendinopathy. RESULTS: Statistical analysis revealed participant age (p=0.005) and years of practice (p=0.004) were risk factors for tendinopathy. A significant association between BMP4 rs2761884 (p=0.03) and tendinopathy was observed. Athletes with a polymorphic genotype have 2.4 times more susceptibility to tendinopathy (OR=2.39; 95%CI=1.10-5.19). Also, association between disease and haplotype TTGGA in BMP4 (p=0.01) was observed. The FGF3 TGGTA haplotype showed a tendency of association with tendinopathy (p=0.05), and so did FGF10 rs900379. FGFR1 showed no association with disease. CONCLUSIONS: These findings indicate that haplotypes in BMP4 and FGF3 genes may contribute to the tendon disease process in elite volleyball athletes.
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Proteína Morfogenética Ósea 4/genética , Factor 3 de Crecimiento de Fibroblastos/genética , Tendinopatía/genética , Voleibol/lesiones , Adulto , Estudios de Casos y Controles , Predisposición Genética a la Enfermedad , Haplotipos , Humanos , Masculino , Adulto JovenRESUMEN
O voleibol exige um ótimo condicionamento físico, força, velocidade, agilidade e flexibilidade de seus participantes. Nele, a repetição de determinados tipos de movimentos e a sobrecarga de treinamento exigida produz um processo de adaptação orgânica do corpo que resulta, muitas vezes, em desequilíbrio muscular. Somado a isso, os gestos específicos e os erros na técnica de execução dos movimentos podem aumentar a prevalência de alterações posturais influenciando o aumento de possibilidades de lesões (JUNIOR, 2004). As alterações posturais, por sua vez, podem ocasionar distúrbios que afetam a coluna vertebral. Objetivo: o propósito do estudo foi detectar as principais subluxações - vertebrais cervicais e torácicas - por meio da análise das rotações do processo espinhoso de cada vértebra e lateralidade do atlas com o membro dominante superior, relacionando com as categorias e com a posição em quadra de atletas de Voleibol. Método: para tanto, realizou-se uma pesquisa descritiva com 145 atletas de categorias de base e adulta que treinam mais de dois dias por semana. Os atletas foram submetidos a uma avaliação quiroprática. Resultados e Discussão: verificou-se que as subluxações mais prevalentes foram das vértebras C1, C7, T4, T8 e T12. Observou-se que a musculatura e a articulação do ombro estão diretamente interligadas com as subluxações encontradas. Atletas ambidestros apresentaram menor percentagem de subluxações e maior equilíbrio rotacional dos processos espinhosos e da lateralidade do atlas. Os demais atletas apresentaram a lateralidade do atlas e as rotações do processo espinhoso das regiões cervical e torácica para o lado direito...
Volleyball requires a great physical fitness, strength, speed, agility and flexibility of its players. In it, the repetition of certain types of movements and the overload of training required may produces an organic process of adaptation of the body that often results in muscle imbalance. Added to this, the specific gestures and errors in technique of the movements may increase the prevalence of postural changes influencing the increased possibilities of injuries. Postural changes, inturn, can lead to disorders affecting the spine. Objective: the purpose of the study was to identify the main subluxations - cervical and thoracic - through the analysis of rotations of the spinous process of each vertebra and laterality of the atlas with the dominant upper limb, in what respect the categories and the position in court of volleyball athletes. Method: it was carried out a descriptive study of 145 athletes from youth teams and adult training more than two days per week. The athletes underwent a chiropractic evaluation. Results and Discussion: it was found that the most prevalent vertebral subluxation are C1, C7, T4, T8 and T12. It was noted that the muscles and the shoulder joint are directly interconnected with the subluxations found. Ambidextrous athletes showed lower percentage of subluxations and higher rotational equilibrium of the spinous processes and the laterality of the atlas. The other athletes showed the laterality of the atlas and the rotations of the spinous process of the cervical and thoracic regions to the right side...
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Humanos , Masculino , Femenino , Quiropráctica/instrumentación , Sistema Musculoesquelético/patología , Voleibol/lesiones , Vértebras Cervicales/patología , Vértebras Torácicas/patología , Epidemiología DescriptivaRESUMEN
The objective of the study was to report the prevention of facial reinjury of a volleyball player using a custom-made protective facial shield. A custom-made protective partial facial shield was fabricated using polymethylmethacrylate and was fitted with a soft lining material to provide additional comfort and protection to the injured area. Facial protection provides greater security against possible facial injuries and allows injured areas to recover during sports practice.
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Traumatismos en Atletas/prevención & control , Traumatismos Faciales/prevención & control , Dispositivos de Protección de la Cabeza , Voleibol/lesiones , Diseño de Equipo , Humanos , Masculino , Polimetil MetacrilatoRESUMEN
Las lesiones en el deporte de alto rendimiento generan un problema a resolver por el cuerpo médico y sobretodo una frustración en el deportista desafectándolo de los entrenamientos y de la competencia oficial. En los últimos años se ha preconizado hacer hincapié en la prevención de las lesiones en todos los ámbitos deportivos con el fin de reducir el número de lesiones y el tiempo de ausencia del deportista. El voleibol es un deporte seguro si lo comparamos con otros deportes de colisión o contacto tal como lo demuestran trabajos estadísticos de lesiones en juegos olímpicos (Injuries in Team Sport Tournarnents During the 2004 Olympic Games, Am. J. Sports Med. 2006) (AU)
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Adolescente , Adulto Joven , Traumatismos en Atletas , Voleibol/lesiones , Voleibol/estadística & datos numéricos , Traumatismos del Brazo , Traumatismos Vertebrales , Traumatismos de la Pierna , Estudios ProspectivosRESUMEN
Las lesiones en el deporte de alto rendimiento generan un problema a resolver por el cuerpo médico y sobretodo una frustración en el deportista desafectándolo de los entrenamientos y de la competencia oficial. En los últimos años se ha preconizado hacer hincapié en la prevención de las lesiones en todos los ámbitos deportivos con el fin de reducir el número de lesiones y el tiempo de ausencia del deportista. El voleibol es un deporte seguro si lo comparamos con otros deportes de colisión o contacto tal como lo demuestran trabajos estadísticos de lesiones en juegos olímpicos (Injuries in Team Sport Tournarnents During the 2004 Olympic Games, Am. J. Sports Med. 2006) (AU)
Asunto(s)
Adolescente , Adulto Joven , Traumatismos en Atletas , Voleibol/lesiones , Voleibol/estadística & datos numéricos , Traumatismos del Brazo , Traumatismos Vertebrales , Traumatismos de la Pierna , Estudios ProspectivosRESUMEN
Las lesiones en el deporte de alto rendimiento generan un problema a resolver por el cuerpo médico y sobretodo una frustración en el deportista desafectándolo de los entrenamientos y de la competencia oficial. En los últimos años se ha preconizado hacer hincapié en la prevención de las lesiones en todos los ámbitos deportivos con el fin de reducir el número de lesiones y el tiempo de ausencia del deportista. El voleibol es un deporte seguro si lo comparamos con otros deportes de colisión o contacto tal como lo demuestran trabajos estadísticos de lesiones en juegos olímpicos (Injuries in Team Sport Tournarnents During the 2004 Olympic Games, Am. J. Sports Med. 2006)
Asunto(s)
Adolescente , Adulto Joven , Traumatismos Vertebrales , Traumatismos de la Pierna , Traumatismos del Brazo , Traumatismos en Atletas , Voleibol/estadística & datos numéricos , Voleibol/lesiones , Estudios ProspectivosRESUMEN
OBJECTIVES: To study the activation patterns of tibialis anterior, peroneus longus and gastrocnemius lateralis muscles during a lateral shuffle maneuver in volleyball players with functional instability of the ankle joint. DESIGN: Observational case-control study. SETTING: Research laboratory. PARTICIPANTS: Sixteen players with functional instability and 18 matched controls. MAIN OUTCOME MEASURES: RMS values of tibialis anterior, peroneus longus and gastrocnemius lateralis muscles for the 50 ms before initial ground contact, timing of onset of muscle activity and linear envelopes for the period of ground contact were calculated. RESULTS: Onset values showed similar patterns of activation for both groups. In healthy subjects, gastrocnemius lateralis activated earlier, followed by peroneus longus and tibialis anterior. In the unstable subjects, gastrocnemius lateralis and peroneus longus activated at the same time, followed by tibialis anterior. Unstable subjects also presented lower peroneus longus activity during the 50 ms before initial ground impact, a lower peroneus longus peak magnitude and a higher gastrocnemius lateralis peak magnitude. CONCLUSIONS: Volleyball players with ankle functional instability showed decreased peroneus longus activity before ground impact that may predispose them to repetitive sprains and explain their "giving way" sensation, since peroneus longus is the main ankle evertor and an important stabilizer against sudden and excessive inversion.
Asunto(s)
Traumatismos del Tobillo/fisiopatología , Inestabilidad de la Articulación/fisiopatología , Músculo Esquelético/fisiología , Voleibol/lesiones , Traumatismos del Tobillo/epidemiología , Traumatismos del Tobillo/etiología , Traumatismos del Tobillo/rehabilitación , Traumatismos en Atletas/epidemiología , Traumatismos en Atletas/etiología , Fenómenos Biomecánicos/fisiología , Estudios de Casos y Controles , Electromiografía , Femenino , Humanos , Inestabilidad de la Articulación/epidemiología , Inestabilidad de la Articulación/rehabilitación , Pierna/fisiología , Masculino , Movimiento , Factores de Riesgo , Estadística como Asunto , Voleibol/fisiología , Adulto JovenRESUMEN
Introdução: As lesões esportivas em adolescentes variam em decorrência de fatores tais como tipo de esporte praticado, tempo despendido e nível de exigência. Objetivo: Verificar a prevalência de lesões musculoesqueléticas em atletas adolescentes. Métodos: Coleta de dados de prontuários (contendo idade, data de nascimento, estatura, massa corporal, modalidade esportiva, gênero, localização anatômica, classificação e origem da lesão) dos atletas atendidos no serviço de Fisioterapia do IME-UCS, que apresentaram lesões musculoesqueléticas de julho de 2005 a junho de 2009. Resultados: O gênero masculino apresentou maior número de lesões (67,6%). A maioria das lesões foi de origem traumática (69%). O voleibol apresentou maior número de lesões (28,0%). A lesão mais frequente foi entorse (24,8%) e o joelho teve maior prevalência de lesões (25,3%). Conclusão: É de grande importância a realização de estudos sobre prevalência de lesões musculoesqueléticas, pois possibilita aos profissionais que trabalham com esporte planejar seus treinamentos, podendo evitar possíveis lesões.
Introduction: Sports injuries in adolescents vary due to factors such as type of sport, time spent and level of demand. Objective: To investigate the prevalence of musculoskeletal injuries in adolescent athletes. Methods: Data collection of records (containing age, date of birth, height, body mass, sport, gender, anatomical location, classification and origin of the lesion) of the athletes met in the service of Physiotherapy of the EMI-UCS, who had musculoskeletal injuries July 2005 to June 2009. Results: Males had higher number of lesions (67.6%). Most injuries were traumatic (69%). Volleyball had a higher number of injuries (28.0%). The most frequent injury was ankle sprain (24.8%) and had higher prevalence of knee injuries (25.3%). Conclusion: It is of great importance for studies on the prevalence of musculoskeletal injuries because it enables professionals working with sports to plan your workouts and can prevent possible injury.