Validating The Adidas Micoach For Estimating Pace, Distance, And Energy Expenditure During Outdoor Over-ground Exercise

To validate the Adidas miCoach for estimating pace (min/km), distance (km) and EE (kcal/min) during outdoor over-ground walking and running for two different sensor configurations. Six male and 8 female moderately endurance trained participants (mean + or - SD age: 28.2 + or - 8.5 y; height: 167.4 + or - 7.8 cm; mass: 60.9 + or - 11.1 kg; VO sub(2max): 54.4 + or - 5.5 mL/kg/min) completed this validation study. The protocol consisted of walking at 53.6, 80.4, and 107.2 m/min and running at 134.0, 160.8, 187.6, and 214.0 m/min on an outdoor track while wearing a portable metabolic measurement unit (Cosmed K4b super(2)). A significant main effect (P < 0.035) was observed for speed indicating an increase in measured values at each subsequent speed for pace, distance, and EE. For pace at all speeds, the laces and midsole miCoach estimated pace were significantly different from each other (P < 0.01), and from actual pace (P < 0.02).