Range of Motion and Symmetry in the Ankle Joint with RPM2 and Alison Tetrick

Throughout the 2016 season, Cylance Pro Cycling athletes have been conducting product testing for RPM2, along with their traditional power data collection. It was during this product testing that a discrepancy in one of our rider’s results was noticed. A previously sustained injury had not prevented Alison from becoming a world class professional athlete, so she put it behind her until the use of RPM2 demonstrated a clear difference between her right and left leg symmetry.

This week we are taking a look specifically at Alison’s range of motion and symmetry in her ankle joints. Even though the ankle is the pivotal to all leg movements, the joint’s importance is often overlooked; our ankles must quickly absorb force and then prepare for the following movement.

At the beginning of the RPM2 protocol, Alison’s ankle flexion measured an average of 28 degrees and 21 degrees for her left and right foot, respectively.  Alison used RPM2‘s revolutionary insole to capture ankle flexion range of motion by performing heel raise exercises. Over time these exercises will provide the ankle joint the nutrition and health they need and while we don’t expect to see a drastic improvement, after a week of repeated exercising Alison’s range of motion for ankle flexion (heel raises) did increase (34 degrees and 35 degrees for left and right foot, respectively), as seen below.

Alison Tetrick Week 1 Ankle Flexion

Alison Tetrick Week 2 Flexion

Dorsiflexion, or ankle extension, is a common ankle limitation. The RPM2 protocol for Alison was developed to measure both flexion and extension to ensure complete joint health. Extension in the ankle joint is measured by completing a toe raise. Alison’s range of motion during week one measured 27 degrees for her left foot and 24 degrees for her right foot. As mentioned earlier, we don’t expect to see major improvements after only a week and fatigue can often skew results from one day to the next (a topic we discussed earlier in the year). Her range of motion at the end of the following week is below and demonstrates some improvement in the left foot only.

Alison Tetrick Week 1 Ankle Extension

Alison Tetrick Week 2 Ankle Extension

The completion of entire exercise protocols will provide the makers of RPM2 a pool of data, that captured by all manner of athletes, who take part in all types of sports.  This data will provide a window into how range of motion can change over time through targeted exercises.

Alison will be sharing some of her exercises on her social media, while RPM2 will continue to work with Cylance Pro Cycling to analyze her results on a weekly basis.

Throughout the month, you can use the discount code “SYMMETRY” (all caps) to receive $25.00 off your order at RPM2.com