Effects of stretching and heat treatment on hamstring extensibility in children with severe mental retardation and hypertonia

Clinical Rehabilitation
Glory Ps Lee, Gabriel Yf Ng

Abstract

To examine the effect of heat and duration of stretching on the extensibility of hamstring muscles and their electromyographic responses to passive stretch in children with hypertonia and severe mental retardation. Randomized cross-over trial. Developmental disability unit in a local hospital. Twenty-nine subjects (9 females) with ages ranged from 4 to 13 years with spastic and/or dystonic hypertonia and hamstring tightness. Subjects received four treatment sessions in random order with each consisting of five repetitions of stretching: (A) 10-second stretching, (B) 30-second stretching, (C) hot pack followed by 10-second stretching, and (D) hot pack followed by 30-second stretching. Each treatment session comprised five repetitions of stretch and successive treatments were separated by at least 24 hours. The distance between greater trochanter and lateral malleolus and hamstring electromyographic (EMG) activity during passive knee extension stretching. Two-way ANOVA showed a larger increase in hamstring extensibility in conditions C and D (1.3 +/- 1.1 cm) than conditions A and B (0.7 +/- 0.9 cm) (P<0.001). For the EMG recordings, conditions B and D (-25.1 +/- 58.4 microV) had greater decrease than conditions A and C (-3.5 +/- ...Continue Reading

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Citations

Dec 7, 2014·Physical Medicine and Rehabilitation Clinics of North America·Aaron Powell, Loren Davidson
Mar 22, 2014·Journal of Physical Therapy Science·Kyoung-Il LimKyoung-Sim Jung
Oct 15, 2009·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·Yukio Nishimura, Tadashi Isa
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Jul 21, 2009·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·Dorit Ben Shalom
Nov 16, 2013·Physical Therapy·Mary E GannottiThubi H A Kolobe

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