title: Muscle Balance between Hamstrings and Quadriceps during Isokinetic Exercise.
abstract: The maximum flexor and extensor peak torques about the knee joint of 17 male and 17 female subjects were determined using a CYBEX isokinetic dynamometer. These values were used to evaluate the influence of changing joint angular-velocity on the ratio of peak hamstrings torque to peak quadriceps torque. Additionally, an assessment of the influence of gravity on the recorded peak torques, and thus the ratio, was made Values for the flexion-extension ratio corrected for gravity were found not significantly different at the measured joint angular-velocities whereas the values of the ratio not corrected for gravity were found significantly different at increasing joint angular-velocities It is necessary that the physiotherapist recognize the importance of the influence of gravity when recording forces developed in the vertical plane.
authors.forename: D J
authors.initials: DJ
authors.lastname: Sanderson
authors.forename: T P
authors.initials: TP
authors.lastname: Musgrove
authors.forename: D A
authors.initials: DA
authors.lastname: Ward