الفهرس 
Effect of manually applied device on Hand strength and functions in physiotherapists
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Abstract
Musculoskeletal disorders are one of the most common health issues among physiotherapists because the nature of their work exposes them to a high risk of pain. Aim: To investigate the effect of the manually applied Cavitation device on the hand-wrist pain intensity level, hand grip and lateral pinch of thumb strength, and hand functions. Subjects: 60 physiotherapists, 30 physiotherapists that did not use the manually applied Cavitation device before and 30 physiotherapists that use the manually applied Cavitation device at least for one year, age group from 20 to 30. Instrumentations: visual analogue scale to assess pain intensity level, handheld dynamometer to assess grip strength, pinch dynamometer to evaluate lateral pinch of thumb strength, and Michigan questionnaire to assess hand functions. Results: In group (A) within group, there was no significant difference of lateral pinch of thumb strength or hand functions. While there was significant increase of grip strength at dominant side compared with non-dominant side. There was significant decrease in pain intensity level at non-dominant side compared to dominant side. In group (B) within group, there was no significant difference of lateral pinch of thumb strength, grip strength and hand functions. There was significant decrease in pain intensity level at non-dominant side compared to dominant side. Between groups, there was significant increase of lateral pinch of thumb strength of dominant and non-dominant side of group (A) in relation to group (B). There was significant increase of hand functions of dominant side of group(A) in relation to group (B) while there was no significant difference of hand functions of non-dominant side between group (A) and group (B), there was no significant difference of grip strength of dominant and non-dominant sides of group (A) and group (B), there was significant decrease of pain intensity level of dominant and non-dominant side of group (A) in relation to group(B). Conclusion: Work-related wrist-hand pain intensity level, grip strength, lateral pinch of thumb strength, and hand functions in physiotherapists are common issues among physiotherapists who use manually applied device at least for one year