Table 5.
Wrist and ankle classification details showing category recognition for each specific activity type. LOSO validation results using the new feature set on the youth dataset (experiment 2). Correct classifications are in bold.
| Wrist, | Ambulation | Cycling | Other Activities | Sedentary |
|---|---|---|---|---|
| Ambulation Activities | ||||
| walking, natural | 71 (71%) | 3 (3%) | 26 (26%) | 0 (0%) |
| treadmill walking: 2.0 | 249 (66%) | 34 (9%) | 21 (5.6%) | 73 (19.4%) |
| treadmill walking: 3.0 – 4.0 mph | 9 (56.3%) | 0 (0%) | 1 (6.3%) | 6 (37.5%) |
| treadmill running: 4.5 – 5.0 mph | 344 (95.3%) | 2 (0.6%) | 12 (3.3%) | 3 (0.8%) |
| Cycling Activities | ||||
| Exercise bike 70 rpm 50 watts | 2 (3.2%) | 0 (0%) | 5 (7.9%) | 56 (88.9%) |
| Outdoor cycling | 12 (1%) | 1104 (95.5%) | 16 (1.4%) | 24 (2.1%) |
| Other activities | ||||
| basketball:-dribbling | 0 (0%) | 0 (0%) | 122 (97.6%) | 3 (2.4%) |
| basketball:-passing | 0 (0%) | 0 (0%) | 100 (90.9%) | 10 (9.1%) |
| basketball:-shortshots | 0 (0%) | 0 (0%) | 126 (97.7%) | 3 (2.3%) |
| clean room | 13 (3.3%) | 5 (1.3%) | 357 (90.4%) | 20 (5.1%) |
| soccer:-dribbling | 21 (17.8%) | 3 (2.5%) | 86 (72.9%) | 8 (6.8%) |
| soccer:-passing | 1 (0.8%) | 3 (2.3%) | 117 (90.7%) | 8 (6.2%) |
| tennis-ball:-fielding | 1 (0.7%) | 0 (0%) | 117 (86.7%) | 17 (12.6%) |
| tennis-ball:-throwing-catching | 0 (0%) | 0 (0%) | 124 (95.4%) | 6 (4.6%) |
| Sedentary activities | ||||
| sitting: reading | 1 (0.4%) | 3 (1.1%) | 0 (0%) | 275 (98.6%) |
| play-computer-game | 0 (0%) | 5 (1.5%) | 0 (0%) | 321 (98.5%) |
| play-on-gameboy | 0 (0%) | 0 (0%) | 0 (0%) | 320 (100%) |
| watch TV | 1 (5.9%) | 0 (0%) | 0 (0%) | 16 (94.1%) |
| wii:-boxing | 3 (0.7%) | 10 (2.5%) | 41 (10%) | 354 (86.8%) |
| wii:-tennis | 1 (0.2%) | 4 (0.9%) | 21 (4.9%) | 403 (93.9%) |
| lying: on back | 0 (0%) | 3 (1.2%) | 0 (0%) | 242 (98.8%) |
| sitting: legs straight | 1 (0.4%) | 7 (2.9%) | 0 (0%) | 233 (96.7%) |
| standing still | 1 (0.4%) | 3 (1.2%) | 1 (0.4%) | 237 (97.9%) |
| Ankle, | Ambulation | Cycling | Other Activities | Sedentary |
|---|---|---|---|---|
| Ambulation Activities | ||||
| walking, natural | 86 (86%) | 0 (0%) | 14 (14%) | 0 (0%) |
| treadmill walking: 2.0 | 367 (97.3%) | 7 (1.9%) | 3 (0.8%) | 0 (0%) |
| treadmill walking: 3.0 – 4.0 mph | 14 (87.5%) | 2 (12.5%) | 0 (0%) | 0 (0%) |
| treadmill running: 4.5 – 5.0 mph | 350 (97%) | 1 (0.3%) | 10 (2.8%) | 0 (0%) |
| Cycling Activities | ||||
| Exercise bike 70 rpm 50 watts | 0 (0%) | 63 (100%) | 0 (0%) | 0 (0%) |
| Outdoor cycling | 7 (0.6%) | 1038 (89.7%) | 79 (6.8%) | 33 (2.9%) |
| Other activities | ||||
| basketball:-dribbling | 26 (20.8%) | 2 (1.6%) | 97 (77.6%) | 0 (0%) |
| basketball:-passing | 0 (0%) | 2 (1.8%) | 81 (73.6%) | 27 (24.5%) |
| basketball:-shortshots | 0 (0%) | 2 (1.6%) | 119 (92.2%) | 8 (6.2%) |
| clean room | 0 (0%) | 11 (2.8%) | 323 (81.2%) | 64 (16.1%) |
| soccer:-dribbling | 9 (7.6%) | 0 (0%) | 106 (89.8%) | 3 (2.5%) |
| soccer:-passing | 0 (0%) | 0 (0%) | 129 (100%) | 0 (0%) |
| tennis-ball:-fielding | 0 (0%) | 1 (0.7%) | 127 (94.1%) | 7 (5.2%) |
| tennis-ball:-throwing-catching | 0 (0%) | 1 (0.8%) | 102 (79.1%) | 26 (20.2%) |
| Sedentary activities | ||||
| sitting: reading | 0 (0%) | 2 (0.7%) | 1 (0.3%) | 291 (99%) |
| play-computer-game | 0 (0%) | 1 (0.3%) | 4 (1.2%) | 323 (98.5%) |
| play-on-gameboy | 0 (0%) | 0 (0%) | 3 (0.9%) | 334 (99.1%) |
| watch TV | 0 (0%) | 0 (0%) | 0 (0%) | 17 (100%) |
| wii:-boxing | 0 (0%) | 2 (0.5%) | 42 (10.2%) | 366 (89.3%) |
| wii:-tennis | 0 (0%) | 2 (0.5%) | 46 (10.7%) | 381 (88.8%) |
| lying: on back | 0 (0%) | 0 (0%) | 0 (0%) | 250 (100%) |
| sitting: legs straight | 0 (0%) | 0 (0%) | 2 (0.8%) | 238 (99.2%) |
| standing still | 0 (0%) | 0 (0%) | 1 (0.4%) | 238 (99.6%) |