Table 2. Descriptive statistics for energy expenditure (METs) and accelerometer output by activity trial and GMFCS level.
| METs(Mean & 95% C.I.) | Vertical Axis Counts per 15 s (VA)(Median & 95% C.I.) | Vector Magnitude per 15 s (VM)(Median & 95% C.I.) | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| GMFCS I | GMFCS II | GMFCS III | GMFCS I | GMFCS II | GMFCS III | GMFCS I | GMFCS II | GMFCS III | |
| Lying Down | 1.1(1.0 – 1.2) | 1.2(1.1 – 1.4) | 1.0(0.9 – 1.2) | 0(0 – 0) | 0(0 – 1) | 0(0 – 0) | 0(0 – 0) | 0(0 – 1) | 0(0 – 0) |
| Handwriting | 1.2(1.1 – 1.3) | 1.3(1.1 – 1.4) | 1.1(0.9 – 1.2) | 0(0 – 0) | 0(0 – 2) | 0(0 – 0) | 1(0 – 7) | 8(1 – 22) | 1(0 – 2) |
| Clean Counter | 2.9(2.6 – 3.2) | 2.8(2.5 – 3.0) | 2.7(2.4 – 3.0) | 96(64 – 136) | 58(36 - 126) | 61(43 – 110) | 601(549 – 658) | 546(385 - 645) | 338(233 – 442) |
| Laundry Task | 2.4(2.1 – 2.7) | 2.4(2.2 – 2.7) | 2.3(2.0 – 2.7) | 35(26 – 71) | 26(14 – 45) | 15(9 – 35) | 352(293 – 390) | 280(144 – 371) | 138(71 – 211) |
| Comfortable Walk | 2.8(2.6 – 3.1) | 3.3(2.9 – 3.7) | 3.5(3.0 – 4.0) | 450(382 – 547) | 521(415 – 755) | 276(199 – 377) | 793(672 – 922) | 942(894 – 1026) | 720(670 – 1052) |
| Brisk Walk | 3.7(3.3 – 4.1) | 4.0(3.5 – 4.5) | 4.3(3.7 – 4.8) | 890(718 – 995) | 946(804 – 1018) | 450(294 – 643) | 1191(1026 – 1287) | 1311(1169 – 1520) | 958(768 – 1377) |
| Fast Walk | 4.7(4.1 – 5.3) | 4.9(4.2 – 5.5) | 4.7(4.1 – 5.2) | 1200(1091 – 1287) | 1017(898 – 1108) | 587(341 – 903) | 1460(1331 – 1662) | 1429(1285 – 1554) | 1152(757 – 1533) |