Table 3.
5% or greater reduction in sedentary time | 0–4.99% reduction | Increase in sedentary time | P -values (time effect) | P -values (time × group interaction) | ||||
---|---|---|---|---|---|---|---|---|
N = 27 (step counts) | N = 28 (step count) | N = 38 (step count) | ||||||
N = 27 (accelerometry) | N = 29 (accelerometry) | N = 40 (accelerometry) | ||||||
Baseline | Week 12 | Baseline | Week 12 | Baseline | Week 12 | |||
Average step count | 5,072±1,759 | 10,150±3,736 | 5,132±1,799 | 7,891±3,446 | 5,317±1,617 | 5,610±3,017 | <0.001 | <0.001 |
Average minutes observed/ day | 925.2±128.1 | 911.3±110.2 | 953.5±89.7 | 926.7±72.6 | 912.4±87.4 | 919.5±135.6 | 0.35 | 0.47 |
Average minutes: sedentary (≤1.5 METs) | 653±121 | 552±100 | 699±92 | 657±70 | 629±93 | 673±120 | 0.001 | <0.001 |
Average light activity minutes (1.5–3 METs) | 252±63 | 310±64 | 232±63 | 230±63 | 267±69 | 228±60 | 0.18 | <0.001 |
Average moderate- intensity activity minutes (3–6 METs) | 20±12 | 49±27 | 22±15 | 40±26 | 16±10 | 18±19 | <0.001 | <0.001 |
Average moderate intensity in bouts | 26±30 | 40±31 | 26±28 | 43±30 | 19±26 | 22±29 | 0.19 | 0.002 |
Percentage of total time spent sedentary | 70.1±6.7 | 60.3±6.7 | 73.3±6.5 | 71.0±6.1 | 68.9±7.4 | 73.1±6.6 | <0.001 | <0.001 |
Abbreviation: MET, metabolic equivalent.