Table 3.
Differences in steps per day of physical activity by weight change categories at 6 and 18 months [LS Means (95% confidence interval)].
| Physical Activity Variable | Weight Change Category Based On 6 and 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 | NON-LOSS (N=103 ) | 7572(6954, 8190) | 9074(8353, 9795)a | 8205(7460, 8949) | 7981(7192, 8771)a | <0.0001 | 0.0501 | <0.0001 |
| LATE-LOSS (N= 19) | 8241(6959, 9524) | 10579(9060, 12099) | 9327(7770, 10885) | 9776(8056, 11495) | ||||
| NON-MAINTAIN (N=44) | 8092(7233, 8952) | 10404(9400, 11407) | 8659(7635, 9683) | 8520(7421, 9618) | ||||
| MAINTAIN (N= 86) | 7094(6433, 7755) | 10600(9839,11360)a | 9508(8730, 10287) | 9850(9032,10668)a | ||||
|
| ||||||||
| NON-MVPA steps·day−1 | NON-LOSS | 4094(3792, 4397) | 4109(3770, 4449) | 4163(3806, 4520) | 4173(3813, 4533) | 0.6764 | 0.1010 | 0.8698 |
| LATE-LOSS | 4367(3736, 4998) | 4455(3742, 5167) | 4279(3534, 5024) | 4094(3324, 4864) | ||||
| NON-MAINTAIN | 4328(3905, 4750) | 4251(3779, 4722) | 4080(3591, 4569) | 4132(3641, 4622) | ||||
| MAINTAIN | 3825(3501, 4149) | 3668(3310, 4026) | 3675(3302, 4048) | 3776(3407, 4144) | ||||
|
| ||||||||
| NON-BOUT-MVPA steps·day−1 | NON-LOSS | 2322(2057, 2587) | 2576(2301, 2852) | 2349(2069, 2629) | 2307(2018, 2596) | 0.0017 | 0.1850 | 0.5059 |
| LATE-LOSS | 2550(1991, 3110) | 2859(2288, 3431) | 2626(2052, 3201) | 3038(2420, 3655) | ||||
| NON-MAINTAIN | 2679(2305, 3052) | 2925(2545, 3305) | 2551(2173, 2930) | 2539(2143, 2934) | ||||
| MAINTAIN | 2164(1879, 2448) | 2528(2239, 2818) | 2326(2035, 2617) | 2421(2124, 2719) | ||||
|
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| BOUT-MVPA steps·day−1 | NON-LOSS | 1180(853, 1508) | 2368(1840, 2896)a | 1726(1235, 2218)a | 1543(1012, 2073)a | <0.0001 | <0.0001 | <0.0001 |
| LATE-LOSS | 1343(665, 2020) | 3277(2096, 4458) | 2447(1405, 3490) | 2701(1508, 3894) | ||||
| NON-MAINTAIN | 1092(637, 1546) | 3225(2466, 3983) | 2031(1353, 2710)b | 1869(1120, 2617)b | ||||
| MAINTAIN | 1093(743, 1443) | 4339(3774, 4904)a | 3496(2986, 4006)a,b | 3645(3098,4192)a,b | ||||
|
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| Energy Intake kcal·day−1 | NON-LOSS | 2064(1893, 2235) | 1594(1466, 1722) | 1651(1517, 1786) | 1581(1442, 1720) | <0.0001 | 0.1613 | 00935 |
| LATE-LOSS | 2322(1946, 2698) | 1594(1466, 1722) | 1734(1466, 2002) | 1725(1428, 2023) | ||||
| NON-MAINTAIN | 2094(1843, 2344) | 1484(1312, 1656) | 1573(1396, 1750) | 1570(1377, 1763) | ||||
| MAINTAIN | 2109(1924, 2293) | 1433(1300, 1565) | 1479(1342, 1616) | 1481(1335, 1626) | ||||
**
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 6 and 18-Month Weight Loss
NON-LOSS: <10% weight loss at both 6 and 18 months
NON-MAINTAIN: ≥10% weight loss at 6 months and <10% weight loss at 18 months
LATE-LOSS: 6 month weight loss <10% & 18 month weight loss ≥10%
MAINTAIN: ≥10% weight loss at both 6 and 18 months