Denise Heirler (TU München, Germany) researched two different techniques to stretch the muscles in the upperleg.
In a study with 42 test persons in the age between 25 - 55 years old, the classical stretch technique 'CRAC' (Contract-Relax-Agonist-Contract) was compared with a myofascial stretch with the use of the BLACKROLL® (BR).
Changes in the movement range were registered with the help of a goniometer.
Result: only the BLACKROLL® group proved, in relation to the control group, a significant result (related to the ischiocrurale muscle group: the muscle reflexes in the upper leg).
Improvement of the stretching ability of the ischiocrural muscle group
MW = average value, SD = standard deviation, KG = control group