Table 1 Summary of the mean variability changes [%] with respect to the standard deviation (left) and coefficient of variation (right). RF stands for rectus femoris, TA for tibialis anterior and LG for lateral gastrocnemius.

Standard deviation						Coefficient of variation
Comparison	Muscle	Changes in variability [%]		p	ηp2	Changes in variability [%]		p	ηp2
Difference running without tubes vs. tube running	RF	72.6	F1,8=23.8	< .01	.75	18.4	F1,8=16.1	< .01	.67
	TA	74.2	F1,8=2.5	= .06	.24	15.2	F1,8=11.5	< .01	.59
	LG	36.5	F1,9=22.7	< .01	.72	8.1	F1,9=3.1	= .10	.26
Running without tubes by tube running interaction	RF		F6,48=2.3	< .05	.22		F6,54=0.9	> .50	.09
	TA		F6,48=4.0	< .01	.33		F6,48=2.8	< .05	.26
	LG		F6,54=6.1	< .001	.40		F6,54=5.7	< .001	.37
Separate analyses for tube running	RF		F6,48=3.6	< .01	.31		F1,8=1.7	> .10	.20
	TA		F6,48=4.4	< .01	.36		F1,8=4.4	< .01	.35
	LG		F6,54=11.3	< .001	.56		F1,9=10.6	< .001	.54
De-adaptation	RF	-31.9	F6,48=11.7	< .01	.60	-8.8	F1,8=1.0	> .30	.11
	TA	-2.9	F6,48= 0.9	< .30	.10	15.3	F1,8= 1.0	> .30	.11
	LG	-12.3	F6,54= 0.4	< .40	.08	0.2	F1,9= 1.0	> .30	.10