Browsing by Subject "Associated football"

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    Effects of age and maturation on lower extremity range of motion in male youth soccer players
    (2022-05) Robles Palazón, Francisco Javier; Ayala, Francisco; Cejudo Palomo, Antonio; De Ste Croix, Mark; Sainz de Baranda, Pilar; Santonja, Fernando; Actividad Física y del Deporte
    Restricted joint range of motion (ROM) has been considered as a primary risk factor for some sport-related injuries. Consequently, pre-participation assessment of lower extremity joints ROM could help identify youth soccer players at high risk of injury and to aid in the design of tailored age and maturational specific training interventions. The purpose of this study was to analyze and compare the influence of chronological age and maturational stage on several lower extremity ROM measures, as well as to describe the lower extremity ROM profile using a comprehensive approach in youth soccer players. A total of 286 male youth soccer players ROM was assessed including: passive hip (extension [PHE], adduction with hip flexed 90º [PHADHF90º], flexion with knee flexed [PHFKF] and extended [PHFKE], abduction with hip neutral [PHABD] and flexed 90º [PHABDHF90º], external [PHER] and internal [PHIR] rotation), knee (flexion [PKF]) and ankle (dorsiflexion with knee flexed [ADFKF] and extended [ADFKE]) ROMs. Between-group differences were analyzed using a one-way ANOVA and magnitude-based decisions. The results only report statistically significant (p < 0.05; d > 0.5) and clinically relevant differences (> 8º) for the PKF ROM between U12 vs. U19, and Pre-PHV vs. Post-PHV groups. Furthermore, approximately 40%, 35% and 20% of players displayed restrictions in their PHFKE, PKF, and ADFKF ROM values, respectively. These findings emphasize the necessity of prescribing (across all age groups and periods of growth and maturation) compensatory measures in daily soccer training, and these exercises should be equally applied to both limbs with the aim of improving PHFKE, PKF and ADFKF ROM values.
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    Incidence, burden, and pattern of injuries in Spanish male youth soccer players: A prospective cohort study
    (2022) Robles Palazón, Francisco Javier; Ruiz Pérez, Iñaki; Aparicio Sarmiento, Alba; Cejudo Palomo, Antonio; Ayala, Francisco; Sainz de Baranda, Pilar; Actividad Física y del Deporte
    Objectives: To explore the incidence, burden, and pattern of injuries in Spanish male youth soccer players during a 9-month competitive season (from September to May-June). Design: Prospective cohort study. Participants: 314 young (10-19 years) soccer players. Main outcome measures: Incidence, burden, location, type, severity, mechanism, and circumstance of injuries, as well as potential differences by tactical position, month of the year, age group, and maturity status. Results: A total of 146 time-loss injuries were sustained by 101 different players. This resulted in an overall injury incidence of 3.1 injuries per 1000 h, a training injury incidence of 1.8 injuries per 1000 h, and a match injury incidence of 11.2 injuries per 1000 h. The probability of injury over the season was 34%. Most of the injuries affected the lower extremity and were classified as muscle/tendon injuries, with hamstring muscle injuries representing the most burdensome diagnosis. The incidence of injuries increased with age and maturation, but a heightened risk of overuse injuries during periods around peak height velocity was also identified. Conclusions: These findings suggest a need for implementing specific injury prevention measures. Due to the high burden shown, these measures should mainly focus on reducing the number and severity of hamstring muscle injuries.