In vivo finger tendon force rates during tapping.
Kursa-K; Dennerlein-J; Tigh-J; Diao-E; Rempel-DM
47th Annual Meetingof the Orthopaedic Research Society, February 25 - 28, 2001, San Francisco, California. Rosemont, IL: Orthopaedic Research Society, 2001 Feb; :1
Risk factors for tendon disorders of the hand may include the force level, number of repetitions, hand posture, and hand velocity. To differentiate between these factors and better understand the injury mechanisms, it is important to understand how these external factors affect internal tendon loading. The relationship between the force at the fingertip and the in vivo force in a flexor tendon while tapping on a keyswitch has been reported previously (1). In addition to the force level, the force rate that a tendon experiences may influence the damage mechanism since loading rate influences tissue strain and fatigue properties. The goal of this investigation was to calculate the mean and maximum in vivo force rates in the flexor digitorum superficialis (FDS) tendon while tapping, compare the values during the loading (increasing force) and unloading (decreasing force) parts of the motion, and compute the corresponding force rates at the fingertip.
Muscles; Musculoskeletal-system-disorders; Hand-injuries; Injury-prevention; Injuries; Risk-factors; Models; In-vivo-studies; Biomechanics; Repetitive-work
University of California, Berkeley, Berkeley, CA. Bioengineering, 1301 South 46th Street, Bldg. 112, Richmond, CA 94804
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
47th Annual Meetingof the Orthopaedic Research Society, February 25 - 28, 2001, San Francisco, California
University of California, Richmond, California