Introduction: Increasing youth participation in soccer has several benefits, but it also brings risks of injury. The use of neuromuscular techniques is effective in preventing injuries, especially in periods of growth as occurs in puberty, which coincides with the development of fundamental basic movements. Therefore, it is important to implement and evaluate prevention programs that focus on neuromuscular control during this stage. Objective: To determine the effect of the FIFA 11+ over a six-week training period in order to quickly improve fundamental movement patterns in under-14 soccer players. Method: A quasi-experimental study that evaluated the fundamental movement patterns through the Functional Movement Screen (FMS) in 22 athletes who were divided into a control group (CG; N=11) and an experimental group (EG; N=11), submitted to the program FIFA 11+ for six weeks. The SPSS 20.0 program was used to analyze the data. Results: Statistically significant improvements were found in the in-line lunge (IL) and in the post-intervention FMS total scores in EG, as well as intergroup improvements when testing the deep squat (DS) in the EG, but not in both groups. Conclusions: The six week FIFA 11+ program did not produce significant improvements in players’ fundamental movements.
Abstract. Introduction: Judo is a high-intensity sport, characterized by a series of acyclic movements that require high technical mastery during combat. It was previously shown that growth of components of physical function is related with an increased probability successful competitive performance. Suspension training is effective at improving components of physical function. Objective: Therefore, the aim of this study was to determine the changes in physical performance traits of youth judokas after a 5-week suspension-training programme. Methods: Ten judokas (age, 15.4 ± 2.8 y) completed a 5-week suspension training routine into their normal training schedule. The difficulty and intensity of the exercises were increased each week. Before and after the intervention athletes were assessed in the single-leg horizontal jumping, Sorensen test, sit-and-reach, Y balance, prone instability and handgrip strength tests. Results: Significant improvements (p<.05; Cohen d effect size ≥.2) were observed in the single-leg horizontal jumping (right leg: 137 ± 23.3 vs 164 ± 22.0; left leg: 131 ± 24.1 vs 169 ± 26.5 cm), Sorensen (134 ± 43.4 vs 195 ± 46.7 s), sit-and-reach (42.1 ± 8.2 vs 46.2 ± 7.5 cm), leg Y balance test (right leg: 91.3 ± 6.6 vs 101 ± 7.6%; left leg: 91.2 ± 4.8 vs 103 ± 6.6%) and arm Y balance test (right arm: 80.9 ± 9.2 vs 89.3 ± 8.4; left arm: 81.4 ± 8.6 vs 90.0 ± 9.6%) Conclusions: Lower-body muscle power, muscle endurance, flexibility, lower-body and upper-body balance physical performance traits were improved after a 5-week training period in youth judokas that replaced a part of their regular judo training with a suspension training routine. 5-week suspension training program increase physical performance of youth judokas: a pilot studyUn programa de entrenamiento de suspensión de 5 semanas incrementa el rendimiento físico en jóvenes judocas: un estudio piloto*Yessenia Norambuena, *Lorena Winkler, *Rocío Guevara, *Pamela Llavados, *Manuel Monrroy, **Rodrigo Ramírez-Campillo, ***Tomás Herrera-Valenzuela, *Rubén Gajardo-Burgos*Universidad Austral de Chile (Chile), **Universidad de Los Lagos (Chile), ***Universidad Santo Tomás (Chile) Abstract. Introduction: Judo is a high-intensity sport, characterized by a series of acyclic movements that require high technical mastery during combat. It was previously shown that growth of components of physical function is related with an increased probability successful competitive performance. Suspension training is effective at improving components of physical function. Objective: Therefore, the aim of this study was to determine the changes in physical performance traits of youth judokas after a 5-week suspension-training programme. Methods: Ten judokas (age, 15.4 ± 2.8 y) completed a 5-week suspension training routine into their normal training schedule. The difficulty and intensity of the exercises were increased each week. Before and after the intervention athletes were assessed in the single-leg horizontal jumping, Sorensen test, sit-and-reach, Y balance, prone instability and handgrip strength tests. Results: Significant improvements (p<.05; Cohen d effect size e».2) were observed in the single-leg horizontal jumping (right leg: 137 ± 23.3 vs 164 ± 22.0; left leg: 131 ± 24.1 vs 169 ± 26.5 cm), Sorensen (134 ± 43.4 vs 195 ± 46.7 s), sit-and-reach (42.1 ± 8.2 vs 46.2 ± 7.5 cm), leg Y balance test (right leg: 91.3 ± 6.6 vs 101 ± 7.6%; left leg: 91.2 ± 4.8 vs 103 ± 6.6%) and arm Y balance test (right arm: 80.9 ± 9.2 vs 89.3 ± 8.4; left arm: 81.4 ± 8.6 vs 90.0 ± 9.6%) Conclusions: Lower-body muscle power, muscle endurance, flexibility, lower-body and upper-body balance physical performance traits were improved after a 5-week training period in youth judokas that replaced a part of their regular judo training with a suspension training routine.Key words: physical fitness; judo; sports injury; unstable surface training; plyometric exercise; combat sport; martial arts, maturity. Resumen. Introducción: El judo es un deporte de alta intensidad, caracterizado por una serie de movimientos acíclicos con una alta maestría técnica durante el combate. Se ha demostrado previamente que el desarrollo de componentes de la función física se relaciona con una mayor probabilidad de rendimiento competitivo exitoso. El entrenamiento de suspensión es efectivo en mejorar los componentes de la función física. Objetivo: Determinar los cambios en el rendimiento físico en judocas jóvenes, después de un programa de entrenamiento de suspensión de 5 semanas. Método: Diez judocas (15.4 ± 2.8 años de edad) completaron un programa de entrenamiento de suspensión de 5 semanas dentro de su programación normal de entrenamiento. La dificultad e intensidad de los ejercicios se incrementó cada semana. Antes y después de la intervención se evaluó un salto horizontal monopodal, test de Sorensen, sit and reach, Y balance test de miembros inferiores y superiores, test de inestabilidad en prono y fuerza prensil. Resultados: Mejoras significativas (p<.05; Cohen d effect size e».2) fueron encontradas en salto horizontal monopodal (derecha: 137 ± 23.3 vs 164 ± 22.0; izquierda: 131 ± 24.1 vs 169 ± 26.5 cm), test de Sorensen (134 ± 43.4 vs 195 ± 46.7 s), sit-and-reach (42.1 ± 8.2 vs 46.2 ± 7.5 cm), Y balance test de miembros inferiores (derecha: 91.3 ± 6.6 vs 101 ± 7.6%; izquierda: 91.2 ± 4.8 vs 103 ± 6.6%) and Y balance test de miembros superiores (derecho: 80.9 ± 9.2 vs 89.3 ± 8.4; izquierdo: 81.4 ± 8.6 vs 90.0 ± 9.6%). Conclusiones: La potencia de miembros inferiores, resistencia muscular, flexibilidad y balance de miembros inferiores y superiores mejoró después de un programa de entrenamiento de suspensión de 5 semanas en judocas jóvenes.Palabras claves: aptitud física; judo; lesión deportiva; entrenamiento en superficie inestable; ejercicio pliométrico; deportes de combate; artes marciales, madurez.
ObjectiveTo review and frequently update the available evidence on injury risk factors and epidemiology of injury in trail running.DesignLiving systematic review. Updated searches will be done every 6 months for a minimum period of 5 years.Data sourcesEight electronic databases were searched from inception to 18 March 2021.Eligibility criteriaStudies that investigated injury risk factors and/or reported the epidemiology of injury in trail running.ResultsNineteen eligible studies were included, of which 10 studies investigated injury risk factors among 2 785 participants. Significant intrinsic factors associated with injury are: more running experience, level A runner and higher total propensity to sports accident questionnaire (PAD-22) score. Previous history of cramping and postrace biomarkers of muscle damage is associated with cramping. Younger age and low skin phototypes are associated with sunburn. Significant extrinsic factors associated with injury are neglecting warm-up, no specialised running plan, training on asphalt, double training sessions per day and physical labour occupations. A slower race finishing time is associated with cramping, while more than 3 hours of training per day, shade as the primary mode of sun protection and being single are associated with sunburn. An injury incidence range 0.7–61.2 injuries/1000 hours of running and prevalence range 1.3% to 90% were reported. The lower limb was the most reported region of injury, specifically involving blisters of the foot/toe.ConclusionLimited studies investigated injury risk factors in trail running. Our review found eight intrinsic and nine extrinsic injury risk factors. This review highlighted areas for future research that may aid in designing injury risk management strategies for safer trail running participation.PROSPERO registration numberCRD42021240832.
Introduction: It has been shown that there is a close association between sleep quality and pain. In young athletes, sleep disorders and pain have a particularly high prevalence; however, the relationship between them has not been widely studied. Objective: To study the association between sleep quality and pain in young athletes. Methods: A cross-sectional study was conducted in which 71 young amateur athletes (39 males) were included. The mean age was 16.9 ± 1.2 years, with 6.5 ± 3.2 years of sports practice and 5.2 ± 1.2 hours of training per week. Sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI). The participants were classified according to sleep quality, as PSQI-I = without sleep disorders, PSQI-II = requiring medical assistance and PSQI-III = requiring medical assistance and treatment. Also, pain intensity was assessed on the Numerical Rating Scale, both at rest (NRSr) and during sports activity (NRSs), along with pain duration. Results: The individuals classified as PSQI-III presented higher NRSr (Mdn = 2.0; IQR = 4.0 vs. Mdn = 0.0; IQR = 2.0; p = 0.04) and higher NRSs (Mdn = 4.0; IQR = 5.0 vs. Mdn = 0.0; IQR = 2.0; p = 0.03) than the individuals classified as PSQI-I. No differences were observed in relation to pain duration. The PSQI score was positively but weakly associated with NRSr (rs = 0.24, p=0.046) and NRSs (rs = 0.27, p = 0.03) but not with pain duration. Conclusion: Young athletes with lower levels of sleep quality show higher levels of pain at rest and during sports practice. Therefore, sleep quality and pain should be considered in the routine assessment of young athletes, by technical and health teams. Level of evidence III; type of study: Cross-sectional .
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