Table 2. Mean step counts observed and registered on the four activity monitors tested over the different surface types of the walking route.
| Observed Step Count | Withings ™ | Garmin ™ | NL-2000 ™ | Fitbit ™ | P Value | |
|---|---|---|---|---|---|---|
| Natural Lawn Grass | 1937 ± 166 | 1945 ± 190 | 1921 ± 156 | 1888 ± 222 | 1928 ± 169 | 0.195 |
| Gravel | 2422 ± 158 | 2408 ± 143 | 2359 ± 150 | 2388 ± 251 | 2424 ± 159 | 0.131 |
| Linoleum | 1979 ± 182 | 1982 ± 193 | 1987 ± 175 | 1922 ± 268 | 1984 ± 191 | 0.106 |
| Tarmacadam/ Asphalt | 2234 ± 234 | 2186 ± 251 | 2185 ± 235 | 2214 ± 239 | 2210 ± 303 | 0.286 |
| Ceramic Tile | 469 ± 31 | 455 ± 50 | 465 ± 21 | 436 ± 108 | 473 ± 41 | 0.457 |
| Ramp | 954 ± 63 | 965 ± 97 | 951 ± 78 | 952 ± 87 | 959 ± 83 | 0.591 |
| Stairs Up | 111 ± 9 | 112 ± 8 | 114 ± 10 | 102 ± 19 | 110 ± 11 | 0.083 |
| Stairs Down | 117 ± 4 | 111 ± 14 | 115 ± 11 | 113 ± 9 | 118 ± 23 | 0.129 |
| Total Step Count | 10950 ± 1209 | 10866 ± 1246 | 10950 ± 1364 | 10695 ± 1281 | 10875 ± 1236 | 0.213 |
There was no statistically significant difference in step count between the observed step count and the step count registered on each activity monitor over the different surfaces tested. Figures represent mean ± SD.