Table 4.
Change in objectively measured physical activity by weight loss at 6 and 18 months [LS Means (95% confidence interval)].
| Physical Activity Variable |
Group Based On 6-and 18- Month Weight Change* |
Assessment Periods (MET-minutes per Week) | P-Values** | |||||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Baseline | 6 Months | 12 Months | 18 Months | Time | Weight Change Group |
Weight Change Group X Time |
||
|
| ||||||||
| LPA (Bouts ≥1 minute in duration and between 1.5 to <3.0 METS) | NON-LOSS (N=107) | 3043.6 (2626.2, 3491.8) | 2798.4 (2394.0, 3234.4) | 2361.3 A (1976.0, 2781.0) | 2257.0 A (1870.1, 2680.1) | 0.0002 | 0.0326 | 0.0075 |
| LATE-LOSS (N=19) | 2811.6 (2470.4, 3174.9) | 2849.6 (2503.4, 3218.2) | 2498.8 (2170.3, 2850.5) | 2326.0 (2008.1, 2667.3) | ||||
| NON-MAINTAIN (N=45) | 2976.5 (2629.5, 3345.0) | 3006.0 (2654.4, 3379.4) | 2867.4 (2523.2, 3233.7) | 2642.1 (2304.9, 3002.3) | ||||
| MAINTAIN (N=87) | 2806.4 (2548.1, 3077.1) | 3223.5 (2945.9, 3513.5) | 3170.2 A (2892.8, 3460.3) | 3037.4 A (2764.6, 3322.9) | ||||
|
| ||||||||
| MVPA-TOTAL (Bouts ≥1 minute in duration and ≥3.0 METS) | NON-LOSS | 1676.6 (1334.9, 2057.3) | 1504.1 A,B (1176.7, 1871.7) | 1334.8 A (1013.4, 1700.3) | 1281.2 A (958.6, 1650.4) | <0.0001 | 0.0001 | <0.0001 |
| LATE-LOSS | 1382.7 (1120.1, 1673.0) | 2227.1 (1886.6, 2595.8) | 1549.2 (1262.3, 1865.6) | 1394.5 (1122.3, 1696.1) | ||||
| NON-MAINTAIN | 1577.1 (1299.4, 1881.6) | 2212.9 A (1878.1, 2575.0) | 1797.5 (1496.3, 2126.3) | 1654.7 B (1359.0, 1979.4) | ||||
| MAINTAIN | 1423.5 (1221.3, 1641.1) | 2647.7 B (2368.8, 2942.1) | 2272.1 A (2011.8, 2548.1) | 2275.1 A,B (2013.5, 2552.7) | ||||
|
| ||||||||
| MVPA<10 (Bouts 1 to <10 minutes in duration and ≥3.0 METS) | NON-LOSS | 1123.5 (939.1, 1324.6) | 1011.0 (833.9, 1205.2) | 930.7 (753.4, 1126.6) | 903.0 (723.9, 1101.9) | 0.0037 | 0.4512 | 0.0393 |
| LATE-LOSS | 986.9 (840.3, 1145.1) | 1168.3 (1006.9, 1341.8) | 914.0 (769.3, 1071.3) | 872.2 (730.6, 1026.4) | ||||
| NON-MAINTAIN | 1137.7 (982.1, 1304.8) | 1134.9 (978.0, 1303.5) | 1068.1 (915.6, 1232.4) | 1014.0 (861.9, 1178.5) | ||||
| MAINTAIN | 979.5 (869.1, 1096.5) | 1148.7 (1028.7, 1275.2) | 1069.4 (952.7, 1192.9) | 1091.7 (973.2, 1217.0) | ||||
|
| ||||||||
| MVPA≥10 (Bouts ≥10 minutes in duration and ≥3.0 METS) | NON-LOSS | 491.6 (297.5, 734.2) | 413.9 A (238.0, 638.1) | 321.4 A (162.8, 533.3) | 300.5 A (144.8, 512.3) | <0.0001 | <0.0001 | <0.0001 |
| LATE-LOSS | 291.1 (170.9, 443.1) | 946.8 (714.5, 1211.7) | 522.3 (350.5, 728.2) | 419.1 (267.0, 605.5) | ||||
| NON-MAINTAIN | 312.4 (189.0, 466.7) | 932.6 (705.6, 1191.3) | 607.9 B (427.2, 820.3) | 533.1 B (360.5, 739.3) | ||||
| MAINTAIN | 320.5 (222.8, 435.8) | 1414.6 A (1199.4, 1647.6) | 1062.9 A,B (875.6, 1268.3) | 1073.0 A,B (883.9, 1280.3) | ||||
**
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.)
*
Groups
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