Isokinetic test measurements
To objectively evaluate the strength of the QF and H muscles, an isokinetic test system was used (95% Confidence Interval). The peak torque (PT) ratios were measured bilaterally using a Biodex System 4XV device (USA 11967-0702) at 2 different angular velocities of 60˚/s and 300˚/s. Each athlete was instructed to perform 5 repetitions for the 60˚/s measurement and 15 repetitions for the 300˚/s measurement. Prior to the measurements, 3 repetitive trials were conducted at each angular velocity, and after a 30 seconds break, the tests were carried out. A 1-min rest was given between the 2 tests.