Wyse JP, et al : Time-of-day dependence of isokinetic leg strength and associated interday variability. Br J Sports Med 28 : 167-170, 1994
Guette M, et al : Time-of-day effect on the torque and neuromuscular properties of dominant and non-dominant quadriceps femoris. Chronobiol Int 22 : 541-558, 2005