1. Development of ‘LIFTEST’ A Dynamic Technique to Assess the Individual Capability to Lift Material;Kroemer;NIOSH Report No. 210-79-0041,1982
2. A longitudinal study of low back pain as associated with occupational weight lifting factors;Chaffin;Am Ind Hyg Assoc J,1973
3. Human strength capability and low back pain;Chaffin;J Occup Med,1974
4. Voluntary strengths of male adults with acute low back syndromes;Berkson;Clin Orthop,1977
5. Pre-employment strength testing—an updated position;Chaffin;J Occup Med,1978