RESUMEN
Basketball is one of the most popular sports in Lithuania, and participation in women's basketball is on the rise. Pre-participation examinations, including musculoskeletal screening and functional performance testing, is an essential part of a multidisciplinary approach to prevent future injuries. Because the lower extremities are the most commonly-injured body area in basketball players. Assessing fundamental movement qualities is of utmost importance. The aim of our study was to determine if functional tests can predict sports injuries in elite female basketball players. A total of 351 records for professional female basketball players were screened during 2013-2016 season. We analysed functional characteristics before the season and used functional performance tests for injury risk assessment: the Functional Movement Screen (FMS), the lower quarter Y Balance test (YBT-LQ) and the Landing Error Scoring System (LESS). Data from 169 players' records were analysed: 77 of them made it to the end of season without injury, making up the non-injured group, while 92 of them suffered lower limb sport injuries during the sport season (injury group). Student's t-test and the Mann-Whitney U-test were used to determine differences between groups. The most commonly encountered sports injuries in our population were those of knee 40.2% and ankle 38%. The injury group had a lower total FMS score (p = 0.0001) and higher total LESS score (p = 0.028) than non-injury group. The dynamic balance of lower limbs was similar in both groups. Imperfect functional movement patterns and poor jump-landing biomechanics during pre-season screening were associated with lower extremity injuries in elite female basketball players. Impairments of dynamic stability in the lower extremities were not associated with injury rates in our population. A combination of functional tests can be used for injury risk evaluation in female basketball players.
Asunto(s)
Atletas , Traumatismos en Atletas/fisiopatología , Baloncesto/lesiones , Músculo Esquelético/fisiología , Rendimiento Físico Funcional , Medición de Riesgo/métodos , Adolescente , Adulto , Articulación del Tobillo , Femenino , Humanos , Rodilla , Articulación de la Rodilla , Movimiento , Factores de Riesgo , Adulto JovenRESUMEN
PURPOSE: To evaluate possible differences in knee extension and flexion torque variability in the anterior cruciate ligament-deficient (ACLD) leg and their dependence on muscle length and visual feedback (VF). Although a knee extension torque deficit is found in the ACLD leg, there is no evidence that variability in submaximal isometric knee extension and flexion torque is affected in the ACLD leg or that it depends on VF. METHODS: All tests were performed using 13 untrained men with unilateral ACL rupture. Isometric knee extension torques at 90(o) and 120(o) and knee flexion torques at 90(o), 120(o) and 140(o) were evaluated in healthy and ACLD legs. Isometric torque variability at 20% of maximal force was evaluated with or without VF. The coefficients of variation (CV) and permutation entropies (PE) were used to calculate submaximal isometric torque variability. RESULTS: Healthy legs had significantly greater isometric torques at 90(o) and 120(o) knee angles during knee extension compared with ACLD legs. There were no differences between healthy and ACLD legs in torque variability in knee extension and flexion with or without VF. The PE of knee extension torque at knee angles of 90(o) and 120(o) was significantly (P < 0.05) greater in healthy legs. CONCLUSIONS: The effect of ACL deficiency on variability (CV) in submaximal isometric knee extension and flexion torque was not significant. However, PE of knee extension submaximal torque was significantly greater in the healthy leg than in the ACLD leg. When estimating ACL deficit, it is important to measure not only isometric maximal torque but also torque variability and complexity using nonlinear tool during submaximal isometric tasks. LEVEL OF EVIDENCE: III.
Asunto(s)
Contracción Isométrica/fisiología , Inestabilidad de la Articulación/diagnóstico , Articulación de la Rodilla/fisiopatología , Rango del Movimiento Articular/fisiología , Torque , Adulto , Análisis de Varianza , Ligamento Cruzado Anterior/fisiopatología , Ligamento Cruzado Anterior/cirugía , Reconstrucción del Ligamento Cruzado Anterior/métodos , Estudios de Casos y Controles , Humanos , Inestabilidad de la Articulación/cirugía , Articulación de la Rodilla/cirugía , Masculino , Músculo Esquelético/fisiología , Cuidados Preoperatorios/métodos , Valores de Referencia , Índice de Severidad de la Enfermedad , Adulto JovenRESUMEN
UNLABELLED: After knee anterior cruciate ligament reconstructive surgery, the recovery of the former level of physical activity takes from 3 to 12 months. Such a wide range of recovery period of physical activity suggests that rehabilitation in most cases is not optimal. According to the majority of authors, after the surgery, a patient can resume intensive physical activity, when the difference in muscle strength between the operated lower extremity and another extremity is not greater than 10-15%. The aim of this study was to compare the impact of intensive and normal rehabilitations on the recovery of knee extensor muscle strength after the surgery. MATERIAL AND METHODS: A total of 40 patients were enrolled in this study. The subjects were divided into two groups. Both groups were engaged in physical activity. The mean age of patients (16 men and 4 women) in the first group at the time of surgery was 26.4+/-8.1 years, mean height - 179.8+/-8.5 cm, and mean weight - 76.0+/-14.0 kg. An intensive rehabilitation was applied for the first group of the patients studied. The second group consisted of 13 men and 7 women who were engaged in moderate physical activity. Their mean age at the time of surgery was 27.0+/-9.3 years, mean height - 173.2+/-6.2 cm, and mean weight - 71.0+/-9.0 kg. A traditional rehabilitation was applied to this group. Muscle strength was measured in the patients of both groups studied approximately 5.2 months following surgery using the Biodex isokinetic dynamometer. RESULTS: The patients undergoing an intensive rehabilitation achieved higher levels of knee extensor muscle strength than those patients undergoing a traditional rehabilitation program. Applying an aggressive rehabilitation program, knee extensor muscles recover more quickly than using a traditional rehabilitation program. The comparison of intensive and traditional rehabilitation programs applied to the operated and unoperated lower extremities has shown that the indexes of knee extensor muscle strength differed by 11.51-12.74%. Applying a traditional rehabilitation, a 23.68-49.42% difference in knee flexor muscle strength between operated and unoperated extremities was noted. CONCLUSIONS: The effect of intensive rehabilitation aimed at strength recovery of knee extensor muscles after anterior cruciate ligament reconstructive surgery is greater than after ordinary rehabilitation.
Asunto(s)
Ligamento Cruzado Anterior/cirugía , Terapia por Estimulación Eléctrica , Traumatismos de la Rodilla/rehabilitación , Fuerza Muscular , Músculo Cuádriceps/fisiología , Adulto , Lesiones del Ligamento Cruzado Anterior , Interpretación Estadística de Datos , Ejercicio Físico , Prueba de Esfuerzo , Femenino , Estudios de Seguimiento , Humanos , Traumatismos de la Rodilla/cirugía , Masculino , Recuperación de la Función , Factores de TiempoRESUMEN
Between 1998 and 2001 thirty-five patients underwent osteochondral transplantation (mosaicplasty) and 35 patients (controls) - microfracture procedure for osteochondral or chondral knee joint pathology treatment. Average age of patients was 24.74+/-7.20 years. Patients were evaluated through International Cartilage Repair Society (ICRS) and modified Hospital for special Surgery (HSS) scales, arthroscopically, histologically, with MRI and x-rays. Modified HSS and ICRS evaluation showed statistically significantly better results in the mosaicplasty group 12 months post operation (p=0.005). Last follow-up showed deterioration in microfracture group (p=0.0005).