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The effect of a resistance-training program on muscle strength, physical workload, muscle fatigue and musculoskeletal discomfort: An experiment |
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| Authors: | Heleen H. Hamberg-van Reenen,Bart Visser,Allard J. van der Beek,Birgitte M. Blatter,Jaap H. van Dieë n,Willem van Mechelen |
| Affiliation: | a Body@Work, Research Center Physical Activity, Work and Health, TNO - VU University Medical Center, Amsterdam, The Netherlands b Department of Public and Occupational Health, EMGO Institute, VU University Medical Center, Amsterdam, The Netherlands c TNO Quality of Life, Hoofddorp, The Netherlands d Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, The Netherlands |
| Abstract: | The aim of the study was to investigate the effectiveness of a resistance-training program on muscle strength of the back and neck/shoulder muscles, relative physical workload, muscle fatigue and musculoskeletal discomfort during a simulated assembly and lifting task. Twenty-two workers were randomized over an 8-week resistance-training group, and a control group. Isokinetic muscle strength was assessed using the Cybex dynamometer, muscle fatigue was measured using EMG, and perceived discomfort was measured using a 10-point scale. At the follow-up, we found no effect of the resistance-training program on isokinetic muscle strength of the back and shoulder muscles. Furthermore, we did not find any effect on EMG data, nor on musculoskeletal discomfort during the simulated work tasks. However, trained workers performed the lifting tasks for a longer time before reporting considerable discomfort than those in the control group. |
| Keywords: | Training Muscle fatigue Musculoskeletal discomfort |
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