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Updated: Jan 25, 2026

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
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Hamstring Eccentric Strengthening Program: Does Training Volume Matter?

Mathieu Lacome, Simon Avrillon, Yannick Cholley

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    Summary
    This summary is machine-generated.

    Low-volume eccentric hamstring training effectively improves knee-flexor strength and muscle fascicle length in elite soccer players. This approach is as beneficial as high-volume training, making it ideal for congested in-season schedules.

    Keywords:
    eliteinjury managementmicrodosingpreventionsoccer

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    Area of Science:

    • Sports Medicine
    • Exercise Physiology
    • Biomechanics

    Background:

    • Elite soccer players require optimized hamstring strength and muscle architecture for performance.
    • In-season training must balance efficacy with recovery and scheduling demands.
    • Eccentric hamstring exercises are crucial for injury prevention and performance enhancement.

    Purpose of the Study:

    • To compare the effects of low-volume versus high-volume eccentric hamstring training on knee-flexor strength.
    • To assess changes in biceps femoris long head and semimembranosus fascicle length.
    • To determine the optimal training volume for in-season elite youth soccer players.

    Main Methods:

    • 19 elite youth soccer players were randomized into low-volume (1 set) or high-volume (4 sets) eccentric training groups for 6 weeks.
    • Training included Nordic hamstring exercise and bilateral stiff-leg deadlifts.
    • Knee-flexor strength and hamstring muscle fascicle lengths were measured pre-training, mid-training, and post-training.

    Main Results:

    • Both low-volume and high-volume training significantly increased knee-flexor eccentric strength and hamstring fascicle length.
    • No substantial differences in strength or fascicle length gains were observed between the two groups.
    • No significant changes were noted between mid-training and post-training assessments.

    Conclusions:

    • Low-volume eccentric hamstring training is as effective as high-volume training for improving strength and fascicle length in elite soccer players.
    • The findings suggest low-volume training is a practical and effective strategy for in-season development.
    • This approach is particularly suitable for teams with demanding schedules, optimizing training benefits while managing player load.