Table 3.

Post hoc t-test results with H-B α’s

Hypothesis	df	t	P	α
Drift at 4% MVC	31	2.60	0.013	0.0038
Drift at 8% MVC	31	1.03	0.31	0.0071
Drift at 11% MVC	31	6.79	0.0000	0.0019
Drift at 15% MVC	31	13.8	0.0000	0.0016
Drift at 18% MVC	31	16.0	0.0000	0.0016
Drift at 21% MVC	31	20.3	0.0000	0.0015
Drift at 25% MVC	31	24.0	0.0000	0.0015
Drift at 28% MVC	31	26.7	0.0000	0.0014
CV at 4% MVC	31	4.89	0.0000	0.0023
CV at 8% MVC	31	5.63	0.0000	0.0022
CV at 11% MVC	31	6.14	0.0000	0.0021
CV at 15% MVC	31	6.25	0.0000	0.0020
CV at 18% MVC	31	6.92	0.0000	0.0019
CV at 21% MVC	31	7.66	0.0000	0.0018
CV at 25% MVC	31	9.71	0.0000	0.0017
CV at 28% MVC	31	8.39	0.0000	0.0017
CV clamp 1st = 2nd	31	3.85	0.0003	0.0026
CV clamp 2nd = 3rd	31	3.20	0.0024	0.0033
CV clamp 3rd = 4th	31	1.05	0.30	0.0063
CV clamp 3rd = 5th	31	2.66	0.010	0.0036
CV clamp 3rd = 6th	31	1.18	0.24	0.0056
CV clamp 3rd = 7th	31	0.51	0.61	0.010
CV clamp 3rd = 8th	31	0.25	0.80	0.025
CV control 1st = 2nd	31	3.80	0.0004	0.0028
CV control 2nd = 3rd	31	0.77	0.45	0.0083
CV control 2nd = 4th	31	1.60	0.11	0.0042
CV control 2nd = 5th	31	0.11	0.92	0.050
CV control 2nd = 6th	31	1.37	0.18	0.0045
CV control 2nd = 7th	31	3.48	0.0010	0.0029
CV control 7th = 8th	31	0.50	0.62	0.013
Slacking onset = RT	29	4.48	0.0001	0.0025
Slacking onset ⊥ RT	28	1.31	0.20	0.0050
Drift ⊥ fatigue	31	0.33	0.74	0.017
PSD at 1 Hz = 3 Hz	31	6.79	0.0000	0.0024
Slacking rate ⊥ CV	30	3.37	0.0021	0.0031

Boldface indicates significance per Holm-Bonferroni-corrected α-values (H-B α’s), i.e., if column P < column α. CV, coefficient of variation; MVC, maximum voluntary contraction; PSD, power spectral density; RT, reaction time.