Table 2. Correlations between average-acceleration and intensity-gradient. Total sample (n = 217) Females (n = 121) Males (n = 96) Average-acceleration Average-acceleration Average-acceleration Intensity-gradient1-S 0.40 0.48 0.29 Intensity-gradient5-S 0.43 0.51 0.33 Intensity-gradient15-S 0.47 0.54 0.38 Intensity-gradient30-S 0.52 0.62 0.38 Intensity-gradient60-S 0.60 0.70 0.45 Values are Pearson’s correlation coefficient. Intensity-gradient was calculated from accelerometer data averaged over a 1-s epoch (intensity-gradient1-S), a 5-s epoch (intensity-gradient5-S), a 15-s epoch (intensity-gradient15-S), a 30-s epoch (intensity-gradient30-S), and a 60-s epoch (intensity-gradient60-S).