Trunk Muscle Activity Induced by Three Sizes of Wobble (Balance) Board

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The effect on trunk muscle activity of three designs of wobble (balance) boards has been investigated electromyographically, in six subjects, in order to define the optimal dimensions of a wobble board that will stimulate such muscle activity. It is suggested that the dimensions required are a 350-mm diameter board set on a a ball 50 mm high with a 55-mm radius of curvature, to provide a maximum angle of tilt of 15°. The possible relationship between proprioception and lower limb/low back disorders is discussed and the suggestion made that wobble boards could be used in clinical trials of coordination training in these patients.

Original languageEnglish
Pages (from-to)27-29
Number of pages3
JournalJournal of Orthopaedic and Sports Physical Therapy
Issue number1
Publication statusPublished - 1 Jul 1986
Externally publishedYes


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