Table 1.

Total elevation indication errors per 1,200 m as means ± standard deviations assessed on a flat 400 m outdoor track. Overall data (n = 120) are subdivided into gait speeds and placement on the body (hip vs. wrist).

Speed (m·s-1) (steps per second)	Position	Garmin® Forerunner 910XT (m)	Polar® RS800CX (m)	Suunto® Ambit2 (m)
Overall	hip	1.2 ± 2.2	3.4 ± 2.3	5.7 ± 2.7
2.88 ± .99	wrist	4.0 ± 5.4	4.5 ± 3.0	7.4 ± 3.2
2.35 ± .42	p	.000	.003	.000
	ES	.51	.27	.39
Strolling	hip	1.3 ± 1.7	3.9 ± 2.3	6.9 ± 3.0
1.77 ± .08	wrist	1.6 ± 3.6	4.7 ± 2.3	8.1 ± 2.8
2.02 ± .24	p	.774	.180	.141
	ES	.05	.25	.27
Walking	hip	0.7 ± 1.4	3.1 ±2.4	6.6 ± 2.7
2.26 ± .15	wrist	3.4 ± 5.4	3.7 ±2.6	8.5 ± 3.5
2.06 ± .32	p	.003	.175	.039
	ES	.54	.25	.38
Jogging	hip	0.9 ± 1.8	3.6 ± 1.9	4.5 ± 1.8
3.27 ± .28	wrist	4.8 ± 5.7	3.8 ± 2.6	6.2 ± 3.0
2.59 ± .24	p	.000	.841	.015
	ES	.67	.04	.45
Running	hip	1.9 ± 3.3	3.2 ± 2.5	4.9 ± 2.5
4.22 ± .46	wrist	6.2 ± 5.6	5.6 ± 3.8	6.6 ± 3.0
2.73 ± .31	p	.001	.006	.002
	ES	.63	.51	.57

p-values and ES represent comparisons between the hip and the wrist; ES = effect size (Cohen’s d).