Skip to main content
Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study

Fig. 3

Rate of force development. Differences in contractile rate of force development (RFD) and rate of EMG rise (RER) for different time-intervals during hand and shoulder MVCs in workers with chronic pain and pain-free controls. A custom made dynamometer was used to measure maximal voluntary contraction strength (MVC) during isometric contractions performed for the shoulder- (external rotation) and wrist muscles (hand extension). Surface EMG was obtained from extensor carpi radialis brevis (during hand extension) and infraspinatus (during shoulder rotation). Mean (SE). * denotes statistical different from pain-free controls

Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us