Journal article
Effect of concrete block weight and wall height on electromyographic activity and heart rate of masons
Ergonomics, Vol.48(10), pp.1314-1330
08/15/2005
DOI: 10.1080/00140130500274168
PMID: 16253947
Abstract
Work-related musculoskeletal disorders (MSDs) are common among construction workers, such as masons. Few interventions are available to reduce masons' exposure to heavy lifting, a risk factor for MSDs. The purpose of this study was to determine whether one such intervention, the use of light-weight concrete blocks (LWBs), reduces physiological loads compared to standard-weight blocks (SWBs).
Using a repeated measures design, 21 masons each constructed two 32-block walls, seven courses (rows) high, entirely of either SWBs or LWBs. Surface electromyography (EMG), from arm and back muscles, and heart rate was sampled.
For certain muscles, EMG amplitudes were slightly lower when masons were laying LWBs compared to SWBs. Upper back and forearm extensor EMG amplitudes were greater for the higher wall courses for both block weights. There were no significant differences in heart rate between the two blocks. Interventions that address block weight and course height may be effective for masons.
Details
- Title: Subtitle
- Effect of concrete block weight and wall height on electromyographic activity and heart rate of masons
- Creators
- D. Anton - University of IowaJ. C. Rosecrance - Colorado State UniversityF. Gerr - University of IowaL. A. Merlino - University of IowaT. M. Cook - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Ergonomics, Vol.48(10), pp.1314-1330
- Publisher
- Taylor & Francis
- DOI
- 10.1080/00140130500274168
- PMID
- 16253947
- ISSN
- 0014-0139
- eISSN
- 1366-5847
- Language
- English
- Date published
- 08/15/2005
- Academic Unit
- Occupational and Environmental Health; Epidemiology; Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984363603702771
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