TY - RPRT TI - Volitional postures during maximal push/pull exertions in the sagittal plane. AU - D B Chaffin AU - R O Andres AU - A Garg PY - 1983 DO - 10.1177/001872088302500508 UR - https://pubmed.ncbi.nlm.nih.gov/6667943/ ID - 6667943 ER -