Methodological Differences in the Interpretation of Fatigue Data from Repeated Maximal Effort Knee Extensions

Table 2: Percent decline in torque output beginning from the repetitions with the highest torque outputs*.

Description	Torque	FI Mean	FI SD
50 reps P3	Ti_F	54.89	8.45
	PT	56.53	8.11
	T135	60.51	8.67
	TI_M	60.75	8.45
	TI_L	62.39	7.31
30 reps P3	Ti_F	38.59	8.03
	PT	38.63	6.61
	T135	41.89	8.08
	TI_M	42.41	7.26
	TI_L	43.74	7.39
50 reps P5	Ti_F	53.64	8.69
	PT	55.17	8.45
	T135	59.57	8.52
	TI_M	59.6	8.47
	TI_L	61.35	7.47
30 reps P5	Ti_F	35.82	8.31
	PT	36.07	6.97
	T135	38.63	9.76
	TI_M	38.99	9.43
	TI_L	40.71	8.07

Decrements in torque output quantified as Fatigue Index (FI), percent decrease. For each repetition range, 1-50 and 1-30, Four different combinations of initial torque and final torque were calculated by using the average of the torque values from the highest three repetitions and last three repetitions (P3), the highest five-repetitions to the last five (P5). Each of the four Fatigue Indexes was calculated using the five different torque variables (PT, T135, TI_F, TI_M, and TI_L).