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Dry Needling for Hamstring Flexibility: A Single-Blind Randomized Controlled Trial.

Parisa Alaei, Noureddin Nakhostin Ansari, Soofia Naghdi

    Journal of Sport Rehabilitation
    |October 7, 2020
    PubMed
    Summary

    Dry needling (DN) offers superior immediate improvements in hamstring flexibility compared to static stretching (SS). This study found DN effectively enhanced muscle compliance and flexibility in individuals with hamstring tightness.

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    Area of Science:

    • Physiotherapy
    • Sports Medicine
    • Rehabilitation Science

    Background:

    • Hamstring tightness is prevalent in athletic and healthy individuals.
    • Dry needling (DN) shows promise for improving muscle flexibility.
    • Limited research compares DN to static stretching (SS) for hamstring flexibility.

    Purpose of the Study:

    • To compare the immediate effects of dry needling (DN) versus static stretching (SS) on hamstring flexibility.
    • To evaluate hamstring flexibility in healthy subjects experiencing hamstring tightness.

    Main Methods:

    • A single-blind randomized controlled trial involving 40 healthy subjects with hamstring tightness.
    • Interventions included a single session of DN or SS applied to the hamstring muscles.
    • Measurements of active knee extension test (AKET), muscle compliance, passive peak torque, and stretch tolerance were taken at baseline, immediately, and 15 minutes post-intervention.
    Keywords:
    compliancestatic stretchingstretch tolerance

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    Main Results:

    • Dry needling (DN) demonstrated superior improvements in all measured outcomes compared to static stretching (SS).
    • DN significantly increased muscle compliance 15 minutes post-intervention, an effect not observed with SS.
    • Improvements in passive peak torque and stretch tolerance were also greater with DN.

    Conclusions:

    • Dry needling (DN) is an effective treatment for improving hamstring flexibility in individuals with hamstring tightness.
    • A single session of DN provides immediate benefits for hamstring flexibility, surpassing static stretching (SS).
    • DN represents a novel and effective therapeutic approach for enhancing hamstring flexibility.