title: Effect of a simulated soccer match on the functional hamstrings-to-quadriceps ratio in amateur female players.
abstract: The purpose of this study was to investigate the effect of a simulated soccer test on the functional hamstrings-to-quadriceps ratio (H(ecc) : Q(con)) in female soccer players. Fourteen amateur players (age, 26.1 ± 4.6 years; height, 168 ± 12 cm; body mass, 62.7 ± 5.5 kg; body fat, 23.7 ± 2.2%) performed the modified Loughborough Intermittent Shuttle Test (modified LIST). Isokinetic strength assessments of the hamstrings and quadriceps on the dominant and non-dominant legs at 120°/s were performed before and immediately after the modified LIST. H(ecc) : Q(con) was calculated as the ratio of the peak eccentric torque of the hamstrings to the peak concentric torque of the quadriceps. A two-way univariate analysis of variance was used to assess the effect of time and leg dominance on H(ecc) : Q(con). The main results showed that the modified LIST led to a significant decrease in H(ecc) : Q(con) in the dominant (-14.1%) and non-dominant legs (-8.0%) (P = 0.02). However, this decrease was not significantly different between dominant and non-dominant legs (P = 0.42). These results reflect a greater risk of hamstrings tears and ACL sprains at the end of soccer matches.
authors: Faculty of Life Sciences, London Metropolitan University, London, UK. a.delextrat@londonmet.ac.uk
authors: A
authors: A
authors: Delextrat
authors: J
authors: J
authors: Baker
authors: D D
authors: DD
authors: Cohen
authors: N D
authors: ND
authors: Clarke
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000517:prevention & control*; D007869:Leg Injuries / Q000517:prevention & control; D009119:Muscle Contraction / Q000502:physiology*; D018763:Muscle Fatigue / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000293:injuries / Q000502:physiology; D052097:Quadriceps Muscle / Q000293:injuries / Q000502:physiology*; D012916:Soccer / Q000293:injuries / Q000502:physiology*; D019415:Torque; D055815:Young Adult