TITLE

A Preliminary Study of Patellar Tendon Torques During Jumping

AUTHOR(S)
Elvin, Niell; Elvin, Alex; Scheffer, Cornie; Arnoczky, Steven; Dillon, Edwin; Erasmus, P. J.
PUB. DATE
November 2009
SOURCE
Journal of Applied Biomechanics;Nov2009, Vol. 25 Issue 4, p360
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The etiology of patellar tendinopathy (jumper's knee) has been attributed to a significant increase in patellar tendon torques associated with jumping. While some investigators have suggested that patellar tendon torques are greater during takeoff, little is known about the relative magnitudes of patellar tendon torques during takeoff and landing. We hypothesized that peak patellar tendon torques are greater in jump takeoff than in landing, and that there is a linear correlation between jump height and peak patellar tendon torque. Seven asymptomatic, recreational male athletes each performed a series of 21 jumps ranging from low to maximal height. A calibrated fiber-optic sensor, implanted transversely within the patellar tendon was used to measure the knee torque during takeoff and landing. There was no significant difference in the peak patellar tendon torque experienced during takeoff and landing within individuals. There was a moderate correlation (r = .64) between maximum takeoff patellar tendon torques and jump height. There was a weak correlation (r = .52) between maximum landing patellar tendon torques and jump height. There was a moderate correlation (r = .67) between maximum 60°/s isokinetic
ACCESSION #
44971132

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics