A controlled-release ergometer for the human ankle.
A hydraulic ergometer for the human foot is described that can apply ankle rotations up to 1 rad at a constant high speed of 10-20 rad/s against moments up to 200 N m. The initial acceleration is damped, so as not to exceed a preset value. With the presented set-up the series elasticity of the intact human m. triceps surae can be measured.
Hof
A L
AL
Department of Medical Physiology, University of Groningen, The Netherlands. a.l.hof@med.rug.nl
D000054:Acceleration; D000328:Adult; D000843:Ankle Joint / Q000502:physiology*; D004548:Elasticity; D004576:Electromyography / Q000295:instrumentation; D004867:Equipment Design; D016552:Ergometry / Q000295:instrumentation*; D005260:Female; D005528:Foot / Q000502:physiology*; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology; D018482:Muscle, Skeletal / Q000502:physiology; D016059:Range of Motion, Articular; D012399:Rotation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D019415:Torque