Athelts that meet the inclusion criteria will be randomized into two groups. The experimental group will receive an 8-week (3 days per week) specificl protocol based on hamstring strengthening (isometric, concentric and excentric exercises), and the control group will not receive any additional exercise. The aim of the study is to investigate the changes in hip and knee muscle strength, in the extensibility of cuadriceps, hamstrings and hip abductors, in the physical functions and in the final marks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
30
A progressive and individualized hamstring strengthening protocol
Luis Ceballos Laita
Zaragoza, Spain
muscle strength
the examiners assess the muscle strength using a hand-held dynamometer (model 01165) for hip and knee muscles
Time frame: Baseline
muscle strength
the examiners assess the muscle strength using a hand-held dynamometer (model 01165) for hip and knee muscles
Time frame: up to 8 weeks
muscle extensibility
the examiners assess the extensibility of the hip flexors, abductors and extensor muscles
Time frame: Baseline
muscle extensibility
the examiners assess the extensibility of the hip flexors, abductors and extensor muscles
Time frame: up to 8 weeks
Physical function
the examiners assess the physical function using vertical jump test
Time frame: Baseline
Physical function
the examiners assess the physical function using vertical jump test
Time frame: up to 8 weeks
Mark
the examiners assess the marks in competition
Time frame: Baseline
Mark
the examiners assess the marks in competition
Time frame: up to 8 weeks
Number of hamstring injuries
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the examiners assess the number of hamstring injuries
Time frame: Baseline
Number of hamstring injuries
the examiners assess the number of hamstring injuries
Time frame: up to 8 weeks