Table 4.
Objectively Recorded Physical Activity Using Omron HJ350 Pedometer Over 5 Months
| Variable | Control (n=31) (M±SD) | Intervention (n=30) (M±SD) | p-value | Overall p-value |
|---|---|---|---|---|
| Steps (objectively measured by pedometer) | ||||
| Mean daily steps | ||||
| Baseline | 6,577±4,460 | 6,761±3,572 | ||
| Change in mean daily steps | <0.001 | |||
| Baseline to Month 1 (Week 1–4) | 378±3,507 | 2,564±3,864 | <0.001 | |
| Baseline to Month 2 (Week 5–8) | −288±3,227 | 3,119±4,753 | <0.001 | |
| Baseline to Month 3 (Week 9–12) | −125±3,451 | 2,888±4,998 | <0.001 | |
| Baseline to Month 4 (Week 13–16) | 20±3,847 | 2,604±4,337 | <0.001 | |
| Baseline to Month 5 (Week 17–end) | −734±3,308 | 2,551±4,712 | <0.001 | |
| Mean steps per hour | ||||
| Baseline | 485±320 | 499±275 | ||
| Change in mean steps per hour | <0.001 | |||
| Baseline to Month 1 (Week 1–4) | 46±269 | 131±253 | 0.001 | |
| Baseline to Month 2 (Week 5–8) | 1±229 | 161±292 | <0.001 | |
| Baseline to Month 3 (Week 9–12) | 9±251 | 151±321 | 0.004 | |
| Baseline to Month 4 (Week 13–16) | 31±290 | 145±298 | 0.02 | |
| Baseline to Month 5 (Week 17–end) | −21±240 | 141±327 | 0.001 | |
| Light physical activity (1–2 METs) | ||||
| Mean minutes per day | ||||
| Baseline | 599±144 | 615±160 | ||
| Change in mean minutes per day | 0.06 | |||
| Baseline to Month 1 (Week 1–4) | −18±133 | 36±143 | 0.007 | |
| Baseline to Month 2 (Week 5–8) | −31±146 | 40±153 | 0.004 | |
| Baseline to Month 3 (Week 9–12) | −29±141 | 41±147 | 0.01 | |
| Baseline to Month 4 (Week 13–16) | −31±141 | 10±158 | 0.03 | |
| Baseline to Month 5 (Week 17–end) | −49±151 | 17±167 | 0.05 | |
| Moderate physical activity (3–5 METs) | ||||
| Mean minutes per day | ||||
| Baseline | 51±39 | 57±40 | ||
| Change in mean minutes per day | <0.001 | |||
| Baseline to Month 1 (Week 1–4) | 3.6±31 | 18±36 | <0.001 | |
| Baseline to Month 2 (Week 5–8) | −3.7±27 | 25±44 | <0.001 | |
| Baseline to Month 3 (Week 9–12) | −1.7±30 | 21±46 | <0.001 | |
| Baseline to Month 4 (Week 13–16) | 0.6±33 | 20±40 | 0.003 | |
| Baseline to Month 5 (Week 17–end) | −4.2±29 | 16±46 | <0.001 | |
| Vigorous physical activity (6–8 METs) | ||||
| Mean minutes per day | ||||
| Baseline | 1.6±6.7 | 1.2±4.1 | ||
| Change in mean minutes per day | 0.13 | |||
| Baseline to Month 1 (Week 1–4) | 0.01±3.8 | 1.30±11.0 | 0.09 | |
| Baseline to Month 2 (Week 5–8) | −0.12±3.8 | 0.44±7.7 | 0.03 | |
| Baseline to Month 3 (Week 9–12) | −0.35±4.6 | 0.91±6.3 | 0.14 | |
| Baseline to Month 4 (Week 13–16) | −0.03±3.8 | 1.30±7.4 | 0.20 | |
| Baseline to Month 5 (Week 17–end) | −0.36±5.1 | 2.30±11.0 | 0.01 | |
Note: Boldface indicates statistical significance (p<0.05).