Regression equations for associations between 60- and 15-second epoch data for physical activity and sedentary time outcome variables
Table 1Regression equation (x = 60-second epoch, y = 15-second epoch) |
R2 | |
---|---|---|
Moderate-to-vigorous physical activity (minutes per day) | y = 0.78x + 15.76 | 0.85 |
Light physical activity (minutes per day) | y = 0.72x + 6.67 | 0.85 |
Sedentary time (minutes per day) | y = 1.03x + 67.20 | 0.83 |
Total counts per day | y = 0.91x + 17,229 | 0.87 |
Source: Colley RC, Harvey A, Grattan KP, Adamo K. Impact of accelerometer epoch length on physical activity and sedentary behaviour. Health Reports 2014; 25(1): 3-9. |
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