The Immediate and 24-hour Effects of Body Tempering Versus Foam Rolling on Lower Extremity Muscular Power During the Vertical Jump and Standing Long Jump Tests

Participant will be positioned prone on the Body Tempering Ab Mat with their feet hanging off the end of the mat. The body tempering intervention will be applied by the same investigator for all trials. The body tempering device will be applied dynamically to each participant for 4 minutes, with the device placed on both participants' lower extremities at the same time. First, the examiner will set a timer for two minutes and begin rolling one 80-pound body tempering device along the participant's gastrocnemius-soleus complex at a rate of 30 beats per minute, traveling from the Achilles tendon (medial malleolus) to the inferior aspect of the popliteal fossa, indicated by fibular head. The participant will then take thirty seconds to transition to a supine position and receive tempering with an 80-pound tempering device along their middle to distal quadriceps, set a timer for 2 minutes.

Participants will be instructed via standardized script to perform self-myofascial release (SMR) on their gastrocnemius-soleus complex and quadriceps muscles. The first SMR sequence will be performed by having the participant place the foam roller behind both calves, beginning the roll at the medial malleolus and ending at the inferior aspect of the popliteal fossa, indicated by the fibular head. The participant will perform this for two minutes, rolling at a tempo of 30 beats per minute. Next, the participant will take thirty seconds to transition to a prone position, placing the foam roller just distal to the hip crease, just inferior to the AIIS, and rolling inferiorly to the area just proximal to the most superior aspect of the patella. This self-release sequence will be performed for two minutes at a tempo of 30 beats per minute. The total time should be four minutes, matching the total time of the experimental intervention group.