1. Effects of lumbar orthosis on intervertebral mobility;Axelsson;Spine,1992
2. Cold sensitive and nonspecific low backpain;Dixon;Clin Trials J,1972
3. Radio-Pills: their use in monitoring back stress;Davis;J Med Eng Tech,1977
4. Climbing efficiency with different modes of carrying loads;Das;Ind J Med Res,1966
5. Ergonomic comparison of seven modes of carrying loads on the horizontal plane;Datta;Ergonomics,1971