Is rotating between static and dynamic work beneficial for our fatigue state? |
| |
| Institution: | 1. Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Van der Boechorststraat 9, NL-1081 TB Amsterdam, The Netherlands;2. TNO, Postbus 3005, NL-2301 DA Leiden, The Netherlands;3. Body@Work, Research Centre of Physical Activity, Work and Health, TNO-VU/VUmc, Van der Boechorststraat 9, NL-1081 TB Amsterdam, The Netherlands;4. Section BioMechatronics & BioRobotics, Department of BioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Postbus 5, NL-2600 AA Delft, The Netherlands;1. Department of Health Sciences, Division of Community and Occupational Medicine, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands;2. TNO, Schipholweg 77-89, 2316 ZL Leiden, The Netherlands;3. Windesheim, University of Applied Sciences, Hospitaaldreef 5, 1315 RC Almere, The Netherlands;4. Department of Human Movement Sciences, VU University, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands;5. Stress Research Institute, University of Stockholm, Stockholm University, Frescati Hagväg 16 A, 114 19 Stockholm, Sweden;6. Behavioural Science Institute, Radboud University, Montessorilaan 3, A.08.29 6525 HR Nijmegen, The Netherlands;1. Department of Mechanical Engineering, Aligarh Muslim University, Aligarh, UP 202002, India;2. Ergonomics Research Division, Department of Mechanical Engineering, Aligarh Muslim University, Aligarh, UP 202002, India;1. Faculty of Applied Health Sciences, University of Waterloo, 200 University Ave W, Waterloo, Ontario, Canada ON N2L 3G1;2. School of Engineering and Technology, Central Michigan University, Mount Pleasant, MI, USA;1. Department of Industrial and Systems Engineering, Auburn University, 3301 Shelby Center for Engineering Technology, Auburn, AL 36849, USA;2. School of Forestry and Wildlife Sciences, Auburn University, 3423 School of Forestry and Wildlife Sciences, Auburn, AL 36849, USA;3. Department of Occupational and Environmental Health, University of Iowa, UI Research Park #164 IREH, Iowa City, IA 52242, USA;4. Department of Occupational and Environmental Health, University of Iowa, S347 CPHB, Iowa City, IA 52242, USA |
| |
| Abstract: | Shoulder disorders comprise a large part of work-related musculoskeletal disorders. Risk factors, such as repetitiveness and monotony, may cause muscle fatigue and be attenuated by task rotation. We investigated rotation between a dynamic box-lifting task and a relatively static pick-and-place task and aimed to determine whether (1) a high rotation frequency leads to less fatigue development than a low rotation frequency, and (2) a self-selected rotation frequency leads to less fatigue development than imposed rotation frequencies. Ten participants performed four one-hour rotation schedules: two low frequency rotation schedules rotating at 30 min, one high frequency rotation schedule rotating every sixth minute, and a self-selected rotation schedule. Borg, SOFI and electromyography of Trapezius and Deltoid subparts served as fatigue indicators. We found significant signs of fatigue for most schedules regarding the Borg and SOFI ratings and the M. Trapezius pars Descendens. Task rotation frequency had no significant effect on any of the outcome parameters, whereas the self-selected rotation schedule clearly resulted in less development of perceived fatigue than imposed schedules. In conclusion, we think that freedom of rotation has the greatest potential to attenuate potential development of musculoskeletal disorders and we require due caution with the use and interpretation of EMG indicators of fatigue. |
| |
| Keywords: | Task rotation Perceived fatigue Manifestations of muscle fatigue Shoulder Multichannel electromyography |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
