Introduction: The RPM2 device (1) is a wireless, remote monitoring, pressure sensing device used for sports performance enhancement.
Methods: Participants (N=60) reported to the biomechanics laboratory for pre-testing and post-testing, as well as once each week, over a 12-week period, to perform pre-selected exercises programmed into the RPM2 device. The participants inserted the RPM2 device into their shoes prior to testing. Pre and post testing of joint range-of-motion (ROM) was measured by a goniometer, and through video analysis (age 23.10 ± 5.60 years; height 177.34 ± 6.42 cm; body mass 77.39 ± 12.55 kg). The two-mile run was used to assess the aerobic fitness and leg muscles’ endurance.
Results: A significant increase in ROM in the hip, knee, and ankle were found, when using the device and performing the exercises over a period of 12 weeks. ROM increases were observed during hip extension, hip flexion, knee flexion, and in ankle dorsiflexion and plantar flexion (>10 degrees). Adherence to exercise was high, with 95% of subjects.
Conclusion: Data suggest that using the monitoring device may lead to increases in ROM, which translates to an increase in flexibility and force production in the joint. With an increase in ROM, the increased torque produced in a given joint may lead to increases in performance.