1. 1. Olyaei G, Hadian M, Talebian S, Bagheri H, Malmir K, Olyaei M. The effect of muscle fatigue on knee flexor to extensor torque ratios and knee dynamic stability. Arabian Journal for Science and Engineering, 2006; 31: 121.
2. 2. Alangari AS, Al-Hazzaa HM. Normal isometric and isokinetic peak torques of hamstring and quadriceps muscles in young adult Saudi males. Neurosciences Journal, 2004; 9: 165-170.
3. 3. Magalhaes J, Ascensao A, Soares J. Concentric quadriceps and hamstrings isokinetic strength in volleyball and soccer players. Journal of Sports Medicine and Physical Fitness, 2004; 44: 119-125.
4. A new concept for isokinetic hamstring: quadriceps muscle strength ratio;Aagaard;The American Journal of Sports Medicine,1998
5. Improving the Q: H strength ratio in women using plyometric exercises;KK;The Journal of Strength & Conditioning Research,2011