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  • Kinematic and electromyographic analysis of variations in Nordic hamstring exercise [Elektronski vir]
    Šarabon, Nejc ...
    The purpose of this study was to present and biomechanically evaluate several variations of the Nordic hamstring exercise (NHE), achieved by altering the slope of the lower leg support and by ... asumming different hip flexion angles. Electromyographic and 2D kinematic measurements were conducted to analyse muscle activity (biceps femoris, semitendinosus, gluteus maximus, erector spine and lateral head of the gastrocnemius), knee and hip joint torques during 6 variations of NHE. The study involved 18 adults (24.9 % 3.7 years) with previous experience in resistance training, but with little or no experience with NHE. Increasing the slope of the lower leg support from 0% (standard NHE) to 20% and 40% enabled the participants to perform the exercise through a larger range of motion, while achieving similar peak knee and hip torques. Instructions for increased hip flexion from 0% (standard NHE) to 25%, 50% and 75% resulted in greater peak knee and hip torque, although the participants were not able to maintain the hip angle at 50% nor 75%. Muscle activity decreased or remained similar in all modified variations compared to the standard NHE for all measured muscles. Our results suggest that using the presented variations of NHE might contribute to optimization of hamstring injury prevention and rehabilitation programs, by providing appropriate difficulty for the individuals strength level and also allow eccentric strengthening at longer hamstring lengths
    Vir: PloS one [Elektronski vir]. - ISSN 1932-6203 (Vol. 14, no. 2, 2019, str. 1-16)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 1541658052

    Povezava(-e):

    https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0223437&type=printable
    DOI

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