Table 2.
Physical Activity Intensity, Device Estimation, Statistical and Practical Application.
| Metria energy expenditure compared to Fitmate metabolic unit | |||||
|---|---|---|---|---|---|
| Intensity | Over-/underestimate | Statistical significance | 95% CI (kcals·minute-1) | Percentage error | Practical application (error) for a 30-min
workout (kcals) |
| Light-to-moderate | Over | P < .001 | −2.91, 3.46 | 4.44 | 8.4 |
| Moderate-to-vigorous | Over | P < .001 | −2.59, 3.87 | 6 | 19.2 |
| Vigorous-to-maximal | Under | P < .001 | −7.22, 3.65 | −13 | −53.4 |
| Bioharness heart rate compared to Polar unit | |||||
| Intensity | Over-/underestimate | Statistical significance | 95% CI (bpm) | Percentage error | Practical application (error) for a 30-min workout (kcals) |
| Light-to-moderate | Under | P < .001 | −16, 15 | −0.5 | −0.6 |
| Moderate -to-vigorous | Under | P < .001 | −26, 17 | −3.1 | −4.73 |
| Vigorous -to-maximal | Over | P > .05 | −21, 24 | 0.82 | 1.45 |
| Bioharness breathing rate compared to Fitmate metabolic unit | |||||
| Intensity | Over-/underestimate | Statistical significance | 95% CI (breaths·minute-1) | Percentage error | Practical application (error) for a 30-min workout (breaths·minute-1) |
| Light-to-moderate | Under | P < .05 | −18, 12 | −11.33 | −3 |
| Moderate -to-vigorous | Under | P < .001 | −33, 14 | −24.3 | −10 |
| Vigorous -to-maximal | Under | P < .001 | −22, 11 | −11.6 | −6 |