Many underground coal mines are less than 1.2 m in height, and require that manual lifting tasks be performed in restricted postures (usually stooped or kneeling). Unfortunately, little is known about how these postures affect the underground coal miner's capabilities to perform such work. A previou
✦ LIBER ✦
Back muscle strength, lifting, and stooped working postures
✍ Scribed by Ellen Poulsen; Kurt Jørgensen
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 495 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0003-6870
No coin nor oath required. For personal study only.
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A laboratory study was conducted to evaluate the NIOSH guidelines for manual lifting. Thirteen male subjects were required to lift three different boxes (25, 38 and 51 cm wide), at four different frequencies (0"2, 3, 6 and 9 lifts/min), and at two heights (floor level to bench height (0"8 m) and ben
Low back stress, muscle usage, and the a