Table 3.
Comparison of Change in zBMI Across 6-Week Intervention Period and at 3-Month Follow-Up of KNF-JR to KNF Cohorts, and Change in Body Fat Percentage and Fat Mass for KNF
| Baseline (B) Mean (±SD) | Week 6 Mean (±SD) | Week 18 (FU) Mean (±SD) | Difference across visits (p-value) |
||
|---|---|---|---|---|---|
| B to post | B to FU | ||||
| zBMI | |||||
| KNF-JR B to Post (n = 43) B to FU (n = 33) |
2.51 (± 0.6) |
2.49 (± 0.5) |
2.46 (± 0.4) |
0.3 | 0.08 |
| KNF B to Post (n = 59) B to FU (n = 32) |
2.17 (± 0.4) |
2.15 (± 0.4) |
2.14 (± 0.4) |
0.02 | 0.1 |
| Waist circumference | |||||
| KNF-JR B to Post (n = 42) B to FU (n = 34) |
78.55 (± 10.7) |
77.93 (± 10.6) |
80.09 (± 9.4) |
0.06 | 0.5 |
| KNF B to Post (n = 60) B to FU (n = 32) |
99.6 (± 15.0) |
99.58 (± 15.2) |
98.47 (± 15.8) |
0.9 | 0.4 |
| Body fat percentagea | |||||
| KNF B to Post (n = 59) B to FU (n = 31) |
40.0% (±7.9) |
39.1% (±8.0) |
38.8% (±9.2) |
0.01 <0.01 |
0.6 |
| Fat massa | |||||
| KNF B to Post (n = 59) B to FU (n = 31) |
29.61 (±14.0) |
28.63 (±12.9) |
29.22 (±15.1) |
0.01 | 0.1 |
a
Body fat percentage and fat mass were only measured for KNFular participants. At the time of study, there was not a validated bioimpedance scale for children younger than 7 years of age.
KNF-JR, Kids N Fitness Jr.