Table 2 Validity and reliability of Nike + Fuelband and SenseWear Armband (SWA) for estimation of physical activity energy expenditure (PAEE) in young adults

PAEE by device (kcal ± SD)

 Oxycon Mobile^a

243 ± 67

 Nike + Fuelband

246 ± 67

 SWA

238 ± 57

PAEE difference from criterion (kcal) (95 % CIs)

 Nike + Fuelband – Oxycon Mobile^a

3 (−16, 23)

 SWA – Oxycon Mobile^a

−5 (−30, 20)

Mean absolute percent error (% ± SD) for PAEE

 Nike + Fuelband

16 ± 13

 SWA

18 ± 18

Correlation with Oxycon Mobile for PAEE

 Nike + Fuelband

0.77*

 SWA

0.61*

ICC Validity against Oxycon Mobile ^b

 Nike + Fuelband

0.77

 SWA

0.61

ICC Test-retest reliability ^b

 Oxycon Mobile^a

0.94

 Nike + Fuelband

0.96

 SWA

0.90