Fig. 3From: Compensatory muscle activation and spinal curve changes in response to fatigue among adolescent male athletesChanges in spinal curves through time during the prone plank test from a representative participant. Left: The shape of the spine at each subsequent 10 s of the test. Right: Changes in thoracic kyphosis (TK, black line) and lumbar lordosis (LL, blue line) angles through timeBack to article page