What’s This Research About?

The primary goal of this research was to determine if isotonic or isometric exercise was effective at inducing an analgesic effect within a physical therapy protocol. The secondary goal was determining changes to cortical motor function in the CNS directly following an acute bout of exercise.

Tendinopathy can be a difficult and painful condition to manage. The most frequently prescribed form of exercise to treat tendinopathy is eccentric exercise. Unfortunately, eccentric exercise can increase pain in some individuals.

An exercise-induced, pain-relieving therapeutic intervention may be ideal because it is noninvasive, can increase adherence, and allow pain to be managed directly before or after an activity.

About The Author


Jenn Pilotti

TITLE: Isometric exercise induces analgesia and reduces inhibition in patellar tendinopathy


PUBLICATION: British Journal of Sports Medicine

DATE: September 2015

AUTHORS : Ebonie Rio, Dawson Kidgell, Craig Purdam, G Lorimer Moseley, Alan J Pearce, Jill Cook

Analgesia: Insensitivity to pain.

Central nervous system (CNS): Brain and spinal cord. Coordinates activity of the entire nervous system.

Eccentric exercise: Strengthening the muscle as it lengthens.

Isometric exercise: Contraction performed with the joint angle and muscle angle fixed. A static plank is an example of an isometric exercise.

Isotonic exercise: Heavy, slow, concentric and eccentric resistance training performed at a fixed speed.

Maximal voluntary isometric contraction (MVIC): A standardized method used to measure muscle strength where the subject is asked to isometrically contract a muscle.

Tendinopathy: Tendon pain and dysfunction.

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