Maximal strength training enhances strength and functional performance in chronic stroke survivors
Journal article
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http://hdl.handle.net/11250/2495189Utgivelsesdato
2012Metadata
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Hill, T. R., Gjellesvik, T. I., Moen, P. M., Tørhaug, T., Fimland, M. S., Helgerud, J., & Hoff, J. (2012). Maximal strength training enhances strength and functional performance in chronic stroke survivors. American Journal of Physical Medicine & Rehabilitation, 91(5), 393–400. 10.1097/PHM.0b013e31824ad5b8Sammendrag
Objective: This study aimed to demonstrate that maximal strength training improves muscle strength and to assess the effect of training on function, aerobic status, and quality-of-life among chronic stroke survivors.
Design: Ten patients acted as their own controls for 4 wks, before an 8-week training intervention. Patients trained 3 days/wk, with four sets of four repetitions at 85%–95% one repetition maximum in unilateral leg press and plantarflexion with an emphasis on maximal mobilization of force in the concentric phase.
Results: After training, leg press strength improved by 30.6 kg (75%) and 17.8 kg (86%); plantarflexion strength improved by 35.5 kg (89%) and 28.5 kg (223%) for the unaffected and affected limbs, respectively, significantly different from the control period (all P < 0.01). The 6-min walk test improved by 13.9 m (within training period; P = 0.01), and the Timed Up and Go test time improved by 0.6 secs (within training period; P < 0.05). There were no significant changes in walking economy, peak aerobic capacity, Four-Square Step Test, or health-related quality-of-life after training.
Conclusions: Maximal strength training improved muscle strength in the most affected as well as in the nonaffected leg and improved Timed-Up-And-Go time and 6-min walk distance but did not alter Four-Step Square Test time, aerobic status, or quality-of-life among chronic stroke survivors.