Table 1.

Baseline data of the participants

	Overall	Average compression depth (cm)		P-value
		≥5	<5
Age (yr)	27 (26-29)	28 (26–29)	27 (26–29)	0.097a)
Body weight (kg)	64.3 ± 11.3	69.3 ± 8.2	58.3 ± 11.5	< 0.001b)
Height (cm)	170.7 ± 7.7	173.9 ± 6.4	167.0 ± 7.6	< 0.001b)
Male sex (%)	66.7	89.8	38.8	< 0.001c)
Self-assessed physical strength	7 (7–8)	8 (7–8)	7 (6–8)	< 0.001a)

The format of the numeric values are presented as median (interquartile range) for age and self-assessed fitness or mean±standard deviation for body weight and height.

^a)Result from t-test.

^b)Result from Mann-Whitney U-test.

^c)Result from chi-square test.