Table 1 Statistical evaluation of OHRM versus the chest-strap HR monitor
Activities | Hours collected | Coverage Δ ≤ 10 bpm (%) | Availability quality index > 0 (%) | MAE (bpm) | SEE (bpm) | Bias (bpm) |
|---|---|---|---|---|---|---|
Healthy normal weight, BMI < 25 | ||||||
Walking | 20.6 | 95.4 | 99.2 | 1.8 | 4.7 | − 0.2 |
Running | 7.1 | 96.0 | 99.5 | 1.7 | 6.6 | − 0.7 |
Cycling | 11.3 | 98.4 | 99.9 | 0.8 | 2.6 | −0.3 |
Gym | 60.6 | 92.5 | 98.6 | 2.9 | 9.3 | −1.1 |
Household | – | – | – | – | – | – |
Sedentary | 21.0 | 98.0 | 99.9 | 1.3 | 5.5 | −0.3 |
Overall | 120.5 | 94.7 | 99.1 | 2.2 | 7.4 | −0.7 |
Healthy over-weight, BMI > 25 | ||||||
Walking | 6.4 | 97.1 | 99.5 | 1.2 | 3.2 | 0.1 |
Running | 2.0 | 98.8 | 99.9 | 0.8 | 2.8 | −0.3 |
Cycling | 3.8 | 98.9 | 99.9 | 0.7 | 2.2 | −0.2 |
Gym | 22.6 | 95.6 | 99.3 | 2.0 | 7.0 | −0.7 |
Household | – | – | – | – | – | – |
Sedentary | 3.4 | 99.3 | 100.0 | 0.9 | 3.9 | −0.1 |
Overall | 38.2 | 96.6 | 99.5 | 1.5 | 5.8 | −0.5 |
Pregnant | ||||||
Walking | 9.6 | 93.7 | 98.9 | 2.4 | 6.1 | −0.1 |
Running | – | – | – | – | – | – |
Cycling | 3.4 | 99.9 | 100.0 | 0.3 | 1.0 | 0.1 |
Gym | 3.4 | 86.4 | 97.6 | 3.4 | 7.2 | −2.0 |
Household | 9.6 | 86.0 | 98.4 | 4.2 | 7.3 | 0.7 |
Sedentary | 1.7 | 97.9 | 100.0 | 1.1 | 2.7 | −0.6 |
Overall | 27.7 | 91.1 | 98.8 | 2.8 | 6.2 | −0.1 |
CAD | ||||||
Walking | 2.6 | 96.9 | 99.9 | 1.7 | 4.2 | 1.0 |
Running | – | – | – | – | – | – |
Cycling | 2.1 | 85.6 | 98.5 | 4.4 | 7.1 | 2.6 |
Gym | 0.8 | 95.1 | 99.0 | 2.7 | 4.2 | 0.7 |
Household | 3.5 | 95.2 | 99.4 | 2.2 | 4.9 | 0.4 |
Sedentary | 1.4 | 99.7 | 100.0 | 0.8 | 1.6 | 0.1 |
Overall | 10.3 | 94.2 | 99.4 | 2.4 | 5.0 | 1.0 |
All | ||||||
Walking | 49.9 | 94.6 | 99.0 | 2.0 | 5.2 | −0.0 |
Running | 43.6 | 95.2 | 99.0 | 2.0 | 7.2 | −0.5 |
Cycling | 93.4 | 96.0 | 99.5 | 1.7 | 5.3 | −0.4 |
Gym | 67.5 | 92.2 | 98.6 | 3.0 | 9.5 | −1.2 |
Household | 67.6 | 94.7 | 99.6 | 2.3 | 5.0 | −0.4 |
Sedentary | 49.0 | 98.4 | 99.8 | 1.2 | 5.7 | −0.4 |
Overall | 371.1 | 95.1 | 99.3 | 1.4 | 6.5 | −0.5 |