Table 4. Development of new MVPA non-bouts cut-points in the healthy calibration sample (n=73).
| 30 minutes MVPA (bouts) per day | MVPA non-bout cut points (min*day-1) | Sensitivity % [95% CI] | Specificity % [95 % CI] | AUC |
|---|---|---|---|---|
| ACSM/AHA | 80 | 83 | 85 | 0.89 |
| (58 to 96) | (73 to 93) | (0.81 to 0.98) | ||
| ACSM/AHAO | 93 | 78 | 40 | 0.54 |
| (56 to 92) | (26 to 55) | (0.40 to 0.68) | ||
| 50% VO2 reserve | 75 | 85 | 30 | 0.56 |
| (65 to 96) | (17 to 45) | (0.42 to 0.70) | ||
| ACSM 2011 | 66 | 88 | 56 | 0.61 |
| (76 to 95) | (26 to 73) | (0.45 to 0.76) |
ACSM/AHA= current American College of Sports Medicine and American Heart Association recommendation (2007) [7]; ACSM/AHAo= American College of Sports Medicine recommendation for older adults (2007) [6]; 50% VO2 reserve= individual cut-point corresponding to 50% of oxygen uptake reserve; ACSM 2011: age-dependent cut-points from ACSM Position Stand 2011 [12]. MVPA= time spent in moderate to vigorous physical activities.