Reduced Muscle Glycogen Differentially Affects Exercise Performance and Muscle Fatigue

Table 3

Effects of fatiguing stimulation of tetanic force and fatigue.

		LG group	HG group	CON group
Staircase (𝑃/𝑃𝑖)		1.25 ± 0.07	1.40 ± 0.08*	1.42 ± 0.07*
Rate constant (/𝑠)		1.54 ± 0.09	1.39 ± 0.09	1.47 ± 0.07
Final force (𝑃/𝑃𝑖)		0.29 ± 0.03	0.34 ± 0.03	0.32 ± 0.04
Tetanic force (mN/gm)	Rested	36.98 ± 3.42	33.15 ± 3.62	35.22 ± 4.14
	Fatigued	18.33 ± 2.11^†	17.53 ± 1.77^†	19.02 ± 2.06^†
Relaxation rate (mN/ms)	Rested	61.9 ± 2.0	55.0 ± 2.5*	51.3 ± 2.1*
	Fatigued	21.7 ± 2.7^†	20.3 ± 3.1^†	19.8 ± 2.6^†

𝑃_𝑖: initial force. Tetanic forces are expressed per gram of dry muscle mass. *𝑃<.05 versus LG, ^†𝑃<.05 versus rest. 𝑛=16 for each group and condition (rest or fatigue).