Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing
Abstract
:1. Introduction
2. Materials and Methods
2.1. Participants
2.2. Study Design
2.3. RR Interval Collection
2.4. Respiration Belt
2.5. Breathing Conditions
2.6. Statistical Analysis
3. Results
3.1. Mean RR
3.2. SDNN
3.3. RMSSD
3.4. LF
3.5. HF
4. Discussion
4.1. Comparison of ECG- and Elite HRV-Derived HRV
4.2. Comparison of SPONT and PACED HRV
4.3. Limitations
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Participant | ECG SPONT | ECG PACED | App SPONT | Signal Quality | App PACED | Signal Quality |
---|---|---|---|---|---|---|
1 | 4 $ | 4 $ | 0 | good | 0 | good |
2 | 0 | 2 $ | 0 | good | 0 | good |
3 | 0 | 0 | 0 | good | 0 | good |
4 | 0 | 0 | 0 | good | 0 | good |
5 | 0 | 0 | 0 | good | 2 | good |
6 | 0 | 0 | 6 | good | 46 | okay |
7 | 0 | 0 | 0 | good | 0 | good |
8 | 0 | 0 | 0 | good | 0 | good |
9 | 0 | 0 | 0 | good | 0 | good |
10 | 0 | 0 | 0 | good | 0 | good |
11 | 0 | 0 | 0 | good | 0 | good |
12 | 0 | 0 | 0 | good | 0 | good |
13 | 0 | 0 | 0 | good | 0 | good |
14 | 0 | 0 | 0 | good | 0 | good |
15 | 0 | 0 | 0 | good | 0 | good |
16 | 0 | 0 | 0 | good | 0 | good |
17 | 0 | 0 | 2 | good | 2 | okay |
18 | 0 | 0 | 0 | good | 0 | good |
19 | 0 | 0 | 0 | good | 0 | good |
20 | 2 ‡ | 4 ‡ | 2 | good | 6 | good |
Median (IQR) | p | Median Bias (IQR) | Limits of Agreement | τ | LCC | Ordinary Least Products Regression | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Lower 2.5th | Upper 97.5th | R2 | Slope (95% CI) | Intercept (95% CI) | ||||||||
Mean RR (ms) | SPONT | ECG | 1040.8 (268.4) | 0.60 | −0.04 (2.3) | −19.8 | 29.1 | 0.36 | 1.0 | 0.99 | 1.0 (0.98–1.03) | −4.5 (−27.9–18.9) |
App | 1026.2 (249.7) | |||||||||||
PACED | ECG | 1018.3 (207.2) | 0.002 | 1.5 (5.3) | −1.6 | 114.6 | 0.05 | 1.0 | 0.94 | 1.0 (0.9–1.1) | −8.1 (−80.1–63.8) | |
App | 1003.0 (198.3) | |||||||||||
SDNN (ms) | SPONT | ECG | 84.2 (43.0) | 0.01 * | 1.3 (3.6) | −71.9 | 33.4 | 0.21 | 0.91 | 0.64 | 1.2 (0.9–1.4) | −15.6 (−45.9–14.8) |
App | 84.8 (35.5) | |||||||||||
PACED | ECG | 100.1 (50.7) | 0.52 | 0.1 (3.5) | −9.9 | 88.4 | 0.34 | 0.92 | 0.67 | 1.4 (0.9–1.9) | −37.2 (−86.1–11.7) | |
App | 99.6 (44.7) | |||||||||||
RMSSD (ms) | SPONT | ECG | 61.3 (47.1) | <0.001 * | 1.4 (5.5) | −1.4 | 34.6 | 0.41 | 0.98 | 0.98 | 1.2 (1.0–1.3) | −8.5 (−16.4–−0.5) |
App | 61.1 (35.7) | |||||||||||
PACED | ECG | 71.6 (46.9) | 0.01 * | 0.4 (5.7) | −12.3 | 128.2 | 0.47 | 0.80 | 0.17 | 1.7 (0.7–2.6) | −41.9 (−104.2–20.5) | |
App | 76.9 (47.9) |
HRV Metric | HRV Tool | Condition | Mean ± SD or Median (IQR) | p | LCC |
---|---|---|---|---|---|
Mean RR (ms) | ECG | SPONT | 1040.8 (268.4) | 0.04 * | 0.95 |
PACED | 1018.3 (207.2) | ||||
App | SPONT | 1026.2 (249.7) | 0.04 * | ||
PACED | 1003.0 (198.3) | ||||
SDNN (ms) | ECG | SPONT | 90.0 ± 37.3 | 0.006 * | 0.70 |
PACED | 111.9 ± 45.4 | ||||
App | SPONT | 90.3 ± 31.9 | 0.05 | ||
PACED | 107.2 ± 32.6 | ||||
RMSSD (ms) | ECG | SPONT | 61.3 (47.1) | 0.13 | 0.65 |
PACED | 71.6 (46.9) | ||||
App | SPONT | 61.1 (35.7) | 0.52 | ||
PACED | 76.9 (47.9) | ||||
LF (ms2) | ECG | SPONT | 1786.3 (2074.5) | <0.001 * | 0.75 |
PACED | 6618.2 (5251.9) | ||||
App | SPONT | 1634.0 (2084.7) | <0.001 * | ||
PACED | 6356.2 (4081.8) | ||||
HF (ms2) | ECG | SPONT | 1321.8 (1705.2) | 0.18 | 0.39 |
PACED | 965.2 (1413.0) | ||||
App | SPONT | 1276.5 (1618.7) | 0.06 | ||
PACED | 1047.4 (1313.2) |
Mean ± SD or Median (IQR) | p | Mean Bias ± SD or Median Bias (IQR) | Limits of Agreement (95% OR 2.5th and 97.5th) | τ | LCC | Ordinary Least Products Regression | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Lower | Upper | R2 | Slope (95% CI) | Intercept (95% CI) | ||||||||
LF (ms2) | SPONT | ECG | 2273.4 ± 2259.4 | 0.80 | 44.0 ± 748.9 | −1424.0 | 1511.9 | 0.46 | 0.95 | 0.89 | 1.0 (0.7–1.3) | −56.9 (−578.4–464.6) |
App | 2317.4 ± 2246.9 | |||||||||||
PACED | ECG | 6618.2 (5251.9) | 0.93 | 28.9 (1100.2) | −2901.4 | 18,752.9 | 0.67 | 0.85 | 0.63 | 1.6 (0.7–2.4) | −3869.6 (−9067.2–1327.9) | |
App | 6356.2 (4081.8) | |||||||||||
HF (ms2) | SPONT | ECG | 1321.8 (1705.2) | 0.96 | 14.2 (199.1) | −323.4 | 762.1 | 0.21 | 1.0 | 0.99 | 1.0 (0.9–1.1) | 52.9 (−60.4–166.2) |
App | 1276.5 (1618.7) | |||||||||||
PACED | ECG | 965.2 (1413.0) | 0.13 | 35.1 (208.4) | −994.8 | 9046.4 | 0.32 | 0.66 | 0.49 | 1.7 (0.0–3.4) | −707.2 (−2177.6–763.2) | |
App | 1047.4 (1313.2) |
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Vondrasek, J.D.; Riemann, B.L.; Grosicki, G.J.; Flatt, A.A. Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing. Sensors 2023, 23, 9496. https://doi.org/10.3390/s23239496
Vondrasek JD, Riemann BL, Grosicki GJ, Flatt AA. Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing. Sensors. 2023; 23(23):9496. https://doi.org/10.3390/s23239496
Chicago/Turabian StyleVondrasek, Joseph D., Bryan L. Riemann, Gregory J. Grosicki, and Andrew A. Flatt. 2023. "Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing" Sensors 23, no. 23: 9496. https://doi.org/10.3390/s23239496