Validity of sports watches when estimating energy expenditure during running

Table 1 Total energy expenditure measured per device including HR and speed per stage

	30% vVO_2peak	50% vVO_2peak	70% vVO_2peak	90% vVO_2peak	110% vVO_2peak
Criterion measure [kcal/min]	3.89 ± 0.94	7.84 ± 2.05	11.72 ± 2.70	16.95 ± 4.09	21.07 ± 4.76
Suunto Ambit2 [kcal/min]	5.17 ± 1.25*	10.60 ± 3.14*	13.65 ± 2.18	12.97 ± 2.25*	14.02 ± 2.08*
Garmin Forerunner 920XT [kcal/min]	2.89 ± 0.81*	7.39 ± 2.48	10.63 ± 2.42	10.38 ± 2.27**	10.67 ± 2.84**
Polar V800 [kcal/min]	4.32 ± 1.20	7.45 ± 1.81	11.15 ± 2.50	11.75 ± 2.70*	12.70 ± 3.08**
HR [bpm]	99.84 ± 17.95	129.24 ± 20.30	150.80 ± 12.54	167.34 ± 7.81	176.35 ± 7.66
Speed [km/h]	4.69 ± 0.69	7.83 ± 1.15	10.93 ± 1.62	14.05 ± 2.07	17.06 ± 2.28

Values are expressed as mean ± standard deviation
vVO _2peak speed at maximal oxygen uptake, HR heart rate, bpm beats per minute
*significantly different from criterion measure (p < 0.05)
**significantly different from criterion measure (p < 0.001)

ISSN: 2052-1847