Hi, welcome to this week Stretch-of-the-Week which will focus on the peroneals and tibialis posterior muscles in the lower leg. Correct functioning of the evertors and invertors of the foot is vital for proper biomechanics of the foot and ankle. They stabilse the lower leg and often act to control movement rather than initiate it. During this stretch the istretcher lies supine and turns the sole of his foot towards the midline by contracting the invertors. The partner should grasp the lower leg for stabilisation and hold the foot with their other hand whilst the stretch attempts to straighten their foot. After this push the stretcher should breathe in deeply and on exhaling contract the peroneals to increase the eversion and deepen the stretch.

This stretch has a number of muscle that are contributing called evertors and invertors. The evertors are the three peroneal muscles: the peroneus longus (top picture), peroneus brevis (bottom picture) and the peroneus tertius. The invertors of the foot are tibialis anterior and posterior which were discussed in last week's Stretch-of-the-Week.
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Always remember that while stretching may be recommended to aid recovery out of injury, you should always be very careful when stretching through rehabilitation.  Your soft tissues are likely to be more vulnerable to re-injury if you stretch too much or too hard during this time.  Always check with your Health Care Professional who is guiding you through your recovery to make sure it is appropriate to start stretching, and please - ALWAYS FOLLOW THE RULES FOR SAFE STRETCHING (blog #50).

Information obtained from McAtee, R. & Charland, J. (1993) Facilitated Stretching
Images from www.sportsinjuryclinic.net