Table 3.

Average frequency (in terms of the number of maximum peaks per sequence) of the quasi-periodic signals obtained with the five ratio-based body measurements.

Dataset	Speed	HW1	HW2	HW3	A1	A2
Dataset 1	Slow walk	6.40 (±0.92)	6.15 (±0.78)	6.29 (±0.87)	7.03 (±1.00)	5.86 (±0.85)
	Normal walk	6.86 (±0.72)	6.93 (±0.66)	6.88 (±0.73)	7.06 (±0.64)	7.21 (±0.68)
	Fast walk	8.14 (±0.61)	7.60 (±1.02)	8.18 (±0.65)	8.10 (±0.65)	7.93 (±0.70)
Dataset 2	Slow walk	2.69 (±0.41)	2.76 (±0.42)	2.74 (±0.39)	3.31 (±0.45)	2.47 (±0.58)
	Normal walk	2.64 (±0.42)	2.64 (±0.45)	2.68 (±0.46)	2.97 (±0.45)	2.62 (±0.50)
	Fast walk	2.66 (±0.38)	2.76 (±0.36)	2.66 (±0.36)	2.88 (±0.42)	2.68 (±0.53)

HW1—ratio of the full-body height to the full-body width; HW2—ratio of the full-body height to the mid-body width; HW3—ratio of the full-body height to the lower-body width; A1—ratio of the apparent to the full-body area; A2—ratio of area between legs and full-body area.