A note on the Mulder-Landsmeer phenomenon.
Mulder-Landsmeer phenomenon (inability to activiely straighten the interphalangeal joints fully when the metacarpophalangeal joint of a finger is passively held in maximal hyperextension) was confirmed in the normally hypermobile South Indian fingers. A powerful but limited de-extension of the proximal phalanx was noticied, in normagers, during completion of interphalangeal extension when the metacarpophalangeal joint was passively held in maximal hyperextension...
D001696:Biomechanical Phenomena; D005384:Finger Joint / Q000502:physiology*; D006801:Humans; D008663:Metacarpus / Q000502:physiology; D009132:Muscles / Q000502:physiology