Relationship of Isokinetic Peak Torque With Work and Power for Ankle Plantar Flexion and Dorsiflexion

Chrissy Woodson, William D. Bandy, Daniel Curis, Darren Baldwin

Past research has analyzed the relationship of peak torque with work and power on the muscles surrounding the knee with correlation coefficients being reported, ranging from 0.67 to 0.99. No studies to date have examined this relationship for muscles surrounding the ankle joint. The purpose of this study was to analyze the relationship of peak torque with work and power for the plantar flexor and dorsiflexor muscles of the ankle. Isokinetic data were collected from 15 healthy subjects (6 males, 9 females; mean age = 26.6 years) on an isokinetic dynamometer across 2 trials at speeds of 30 and 120°/sec. The results of Pearson product moment correlations between peak torque to work and peak torque to power indicated correlation coefficients ranging from 0.81 to 0.97 for all speeds of testing and angular velocities. These findings suggest that peak torque is representative of work and power.

J Orthop Sports Phys Ther. 1995;22(3):113-115.

Key Words: muscle strength, dynamic, ankle

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