Impact of a Smart-Ring-Based Feedback System on the Quality of Chest Compressions in Adult Cardiac Arrest: A Randomized Preliminary Study
Abstract
:1. Introduction
2. Materials and Methods
2.1. Design
2.2. Participants
2.3. Equipment and Materials
2.4. Grouping and Experimental Conditions
2.5. Outcomes
2.6. Learnability and Usability of the Smart-Ring
- I would use this product frequently;
- I think the product is unnecessarily complex;
- I think the product is easy to use;
- I think I would need technical support to learn how to use this product;
- I think that the functions in the product are well-integrated;
- I think there was much inconsistency in the performance of the product;
- I imagine that most people would learn to use this product quickly;
- I find the product very uncomfortable to use;
- I feel confident using this product;
- I will need to learn many things before continuing to use the product.
- Positively worded domains = (score − 1);
- Negatively worded domains = (5 − score);
- After summing up the scores for the 10 domains, we multiplied by 2.5 = total SUS.
2.7. Statistical Analyses
3. Results
3.1. Group Allocation and Participant Characteristics
3.2. Main Outcome
3.3. Results of the Learnability and Usability Evaluation
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Characteristics | Population | p-Value * | |
---|---|---|---|
Male (n = 15) | Female (n = 5) | ||
Age, years | 23 (21.5–24.5) | 21 (21–22) | 0.356 |
Height, cm | 172.0 (170.0–176.0) | 162.0 (158.0–164.0) | 0.001 |
Weight, kg | 72.0 (65.5–79.0) | 54.0 (53.0–55.0) | 0.001 |
Body mass index | 24.1 (21.9–27.0) | 20.2 (20.0–21.6) | 0.019 |
Number of CPR training sessions | 3 (2–3) | 3 (3–4) | 0.558 |
Performance of CPR in real world | 0 (0–0) | 0 (0–0) | - |
Outcome | Intervention (n = 20) | Control (n = 20) | p-Value * |
---|---|---|---|
CC depth, mm | 52.1 (46.3–54.8) | 47.1 (40.5–49.9) | 0.021 |
Proportion of accurate-depth CCs, % | 88.7 (30.0–99.1) | 22.6 (0.0–58.5) | 0.033 |
CC rate, counts/min | 99.6 (99.5–100.0) | 99.6 (99.6–99.8) | 0.616 |
Proportion of complete chest decompression, % | 100 (99.7–100.0) | 100 (95.1-100) | 0.306 |
Outcome | B | SE | VIF | p-Value ** |
---|---|---|---|---|
* CC depth, mm | ||||
Sex, male | 8.88 | 2.21 | 1.33 | 0.019 |
BMI (kg/m2) | 0.93 | 0.30 | 1.33 | 0.003 |
Feedback | 6.11 | 1.66 | 1.00 | <0.001 |
Proportion of accurate-depth CCs, % | ||||
Sex, male | 35.39 | 10.91 | 1.33 | <0.001 |
BMI (kg/m2) | 5.60 | 1.47 | 1.33 | <0.001 |
Feedback | 31.33 | 8.19 | 1.00 | <0.001 |
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Ahn, C.; Lee, S.; Lee, J.; Oh, J.; Song, Y.; Kim, I.Y.; Kang, H. Impact of a Smart-Ring-Based Feedback System on the Quality of Chest Compressions in Adult Cardiac Arrest: A Randomized Preliminary Study. Int. J. Environ. Res. Public Health 2021, 18, 5408. https://doi.org/10.3390/ijerph18105408
Ahn C, Lee S, Lee J, Oh J, Song Y, Kim IY, Kang H. Impact of a Smart-Ring-Based Feedback System on the Quality of Chest Compressions in Adult Cardiac Arrest: A Randomized Preliminary Study. International Journal of Environmental Research and Public Health. 2021; 18(10):5408. https://doi.org/10.3390/ijerph18105408
Chicago/Turabian StyleAhn, Chiwon, Seungjae Lee, Jongshill Lee, Jaehoon Oh, Yeongtak Song, In Young Kim, and Hyunggoo Kang. 2021. "Impact of a Smart-Ring-Based Feedback System on the Quality of Chest Compressions in Adult Cardiac Arrest: A Randomized Preliminary Study" International Journal of Environmental Research and Public Health 18, no. 10: 5408. https://doi.org/10.3390/ijerph18105408
APA StyleAhn, C., Lee, S., Lee, J., Oh, J., Song, Y., Kim, I. Y., & Kang, H. (2021). Impact of a Smart-Ring-Based Feedback System on the Quality of Chest Compressions in Adult Cardiac Arrest: A Randomized Preliminary Study. International Journal of Environmental Research and Public Health, 18(10), 5408. https://doi.org/10.3390/ijerph18105408