title: Changes in wrist and forearm configuration with grasp and isometric contraction of elbow flexors.
abstract: The purpose of this study was to determine the changes in wrist and forearm configuration with grasp and elbow flexor contraction by analysis of resting and grasping x-ray films of 15 normal adults and forearm scanograms of 10 other normal subjects. With grasp, a significant proximal migration of the radius (averaging 0.9 mm), a decrease in the carpal height ratio, and an increase in the lunate uncovering index were observed. With flexor contraction, there was a significant decrease in the forearm interosseous space.
authors.affiliation: Department of Orthopedics, Mayo Clinic/Mayo Foundation, Rochester, MN 55905.
authors.forename: F A
authors.initials: FA
authors.lastname: Schuind
authors.forename: R L
authors.initials: RL
authors.lastname: Linscheid
authors.forename: K N
authors.initials: KN
authors.lastname: An
authors.forename: E Y
authors.initials: EY
authors.lastname: Chao
mesh_terms: D000328:Adult; D004551:Elbow Joint / Q000502:physiology*; D005260:Female; D005542:Forearm / Q000033:anatomy & histology*; D006801:Humans; D007537:Isometric Contraction; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D014955:Wrist Joint / Q000033:anatomy & histology*