Efficacy of Microcurrent Therapy After Eccentric Exercise

15 participants will be included in the present study. They will attend two groups of three sessions (i.e. sessions 1-2-3 and sessions 4-5-6) spaced by 3 months: * session 1 and 4 (performed a few days before the experimental session): session for participants to get familiarized with the test battery. * session 2 and 5: experimental session (the test battery followed by the provocative task, the test battery, the one-hour \"treatment\" and the test battery again). * session 3 and 6 (performed 2 days later): the test battery. The test battery included flexibility, functional, pressure pain threshold tests. The provocative task was an isokinetic eccentric task for knee flexors and extensors. The treatment was either a microcurrent therapy or a placebo microcurrent therapy.