title: An evaluation of tool design and method of use of railroad leverage tools on back stress and tool performance.
mesh_terms: D000293:Adolescent; D000328:Adult; D001696:Biomechanical Phenomena; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D011890:Railroads; D013131:Spine / Q000502:physiology*