Table 2.
Differences in steps per day of physical activity by weight change categories at 18 months [LS Means (95% confidence interval)].
| Physical Activity Variable | Weight Change Category Based On 18-Month Weight Loss | Assessment Periods (Steps per Day) | P-Values** | |||||
|---|---|---|---|---|---|---|---|---|
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|
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| Baseline | 6 Months | 12 Months | 18 Months | Time | Weight Change Category | Weight Change Category X Time | ||
|
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| Total steps·day−1 | GAIN (N=36 ) | 8134(7212, 9056) | 8603(7490, 9716)a | 7965(6815, 9114) | 7801(6549, 9053)a | <0.0001 | 0.0588 | <0.0001 |
| WL<5% (N= 55 ) | 7233(6444, 8022) | 9613(8681, 10545) | 8187(7217, 9157) | 7802(6782,8822)b | ||||
| WL<10% (N= 57 ) | 7869(7096, 8641) | 9852(8933, 10771) | 8602(7676, 9528) | 8612(7613, 9610) | ||||
| WL≥10% (N= 106 ) | 7280(6680, 7880) | 10576(9882,11270)a | 9456(8749, 10164) | 9822(9073,10571)a,b | ||||
|
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| NON-MVPA steps·day−1 | GAIN | 4259(3805, 4713) | 4415(3894, 4937) | 4213(3661, 4765) | 4242(3674, 4809) | 0.9423 | 0.2032 | 0.9715 |
| WL<5% | 3919(3532, 4306) | 3952(3515, 4390) | 3994(3528, 4460) | 4018(3554, 4482) | ||||
| WL<10% | 4278(3898, 4657) | 4126(3696, 4557) | 4157(3712, 4602) | 4153(3707, 4599) | ||||
| WL≥10% | 3914(3620, 4208) | 3802(3475, 4128) | 3775(3435, 4115) | 3831(3493, 4169) | ||||
|
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| NON-BOUT-MVPA steps·day−1 | GAIN | 2491(2088, 2895) | 2646(2222, 3071) | 2576(2147, 3006) | 2500(2046, 2954) | 0.0002 | 0.6600 | 0.1839 |
| WL<5% | 2228(1886, 2571) | 2692(2338, 3046) | 2264(1903, 2625) | 2125(1754, 2496) | ||||
| WL<10% | 2539(2203, 2875) | 2675(2327, 3022) | 2421(2078, 2764) | 2525(2163, 2887) | ||||
| WL≥10% | 2230(1971, 2489) | 2585(2320, 2850) | 2377(2112, 2642) | 2520(2245, 2795) | ||||
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| BOUT-MVPA steps·day−1 | GAIN | 1404(918, 1890) | 1496(671, 2322)a,b,d | 1272(498, 2047)a | 1075(210, 1941)a | <0.0001 | <0.0001 | <0.0001 |
| WL<5% | 1097(684, 1511) | 2990(2299, 3681)a,c | 1941(1286, 2596)b | 1735(1045, 2426)b | ||||
| WL<10% | 1058(653, 1463) | 3059(2358, 3761)d | 2040(1423, 2658)c | 1949(1269, 2629)c | ||||
| WL≥10% | 1131(816, 1447) | 4145(3634,4656)b,c | 3301(2837,3764)a,b,c | 3482(2982,3981)a,b,c | ||||
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| Energy Intake kcal·day−1 | GAIN | 1981(1709, 2253) | 1580 (1374, 1786) | 1570 (1364, 1776) | 1587 (1367, 1806) | <0.0001 | 0.9773 | 0.2378 |
| WL<5% | 1986 (1756, 2217) | 1531 (1366, 1696) | 1681 (1510, 1853) | 1589 (1410, 1768) | ||||
| WL<10% | 2177 (1954, 2400) | 1567 (1406, 1728) | 1612 (1448, 1776) | 1561 (1384, 1738) | ||||
| WL≥10% | 2175 (2006, 2343) | 1546 (1421, 1671) | 1543 (1417, 1669) | 1546 (1411, 1681) | ||||
**
indicates no significant difference between randomized groups (data not presented)
Note: Groups with the same superscript at the same assessment point are significantly different at α<0.008 (p-value of 0.05 adjusted using Bonferroni adjustment for 6 group comparisons at that time point.)
Weight Change Category Based On 18-Month Weight Loss
GAIN: Weight gain ≥0% of baseline weight
WL<5%: weight loss <5% of baseline weight
WL<10%: weight loss of 5% to <10% of baseline weight
WL≥10%: weight loss ≥10% of baseline weight