Effect of wearing medical protective masks on treadmill running performance in the postpandemic era: a randomised trial

Table 2 Kinetic variables of the average PVGRF during treadmill running between the mask and nonmask groups

Characteristic	RN_Time	RN_nonmask	RN_mask	P values
Characteristic	RN_Time	RN_nonmask	RN_mask	Main effect (Group)	Main effect (Times)	Interaction (Group × Times)
Average PVGRF (BW)	0–1 min	2.067 ± 0.250	2.119 ± 0.152	0.707	0.000*	0.697
	5–6 min	2.125 ± 0.254	2.136 ± 0.206
	9–10 min	2.170 ± 0.228	2.198 ± 0.174
	14–15 min	2.221 ± 0.258	2.231 ± 0.190

Data are presented as mean ± SD; “*” indicates a significant time main effect (p < 0.05)
(PVGRF: peak vertical ground reaction forces; RN_time: running time; RN_nonmask: running without mask; RN_mask: running with mask.)

ISSN: 2052-1847