Table 2.
Comparisons between Physical Activity Related Variables Derived from the AM7164 Accelerometer and the 3DPAR Questionnairea
| Accelerometer median (range) minutes/day | 3DPAR median (range) 30-minute blocks/day | Spearman coefficientb | |
|---|---|---|---|
| Males n = 93 | |||
| Light-intensity PA | 330.0 (288.8 – 380.3) | 12.5 (4.0 – 23.5) | 0.01 |
| Moderate/vigorous intensity PA | 24.8 (1.3 − 126.3) | 2.5 (0 – 15.5) | 0.15 |
| Total PA (light + moderate/vigorous) | 368.6 (182.1 – 631.8) | 15.5 (6.0 – 29.0) | 0.11 |
| Sedentary behavior | 487.2 (183.0 –1040.7) | 13.0 (0 – 22.0) | 0.07 |
| Females n = 143 | |||
| Light-intensity PA | 346.4 (185.7 – 577.2) | 12.5 (3.0 – 26.5) | 0.14 |
| Moderate/vigorous intensity PA | 14.7 (0 – 81.5) | 2.0 (0 – 13.5) | 0.15 |
| Total PA (light + moderate/vigorous) | 369.6 (185.7 – 577.2) | 16.0 (3.5 – 26.5) | 0.11 |
| Sedentary behavior | 467.3 (186.0 – 1015.3) | 11.5 (1.0 – 26.5) | 0.19* |
PA, physical activity; 3DPAR, three-day PA recall.
a
The units for the accelerometer (minutes/day) and 3DPAR (30-minute blocks) reflect the recording timeframe of each instrument.
b
Partial correlations controlling for the effect of age.
*
p < 0.05.