Comparisons in heart rate readings between the Bioconnected wireless exercise earpiece and a Polar T31-Coded Chest Strap during a GXT
DOI:
https://doi.org/10.14198/jhse.2018.133.05Keywords:
Heart rate monitoring, Validity, Polar monitor, Photoplethysmography, PPGAbstract
Purpose. The advent of mobile technology has provided a convenient method of measuring heart rate in clinical settings and athletic training with limited support. Therefore the purpose of this research was to evaluate the validity of an earpiece HR monitoring device against a previously validated chest strap HR monitoring device. Method. A convenient sample of college students (n=15), performing a modified Bruce protocol, provided 25 data samples. Heart rates obtained from both the Bioconnected wireless exercise earpieces and a Polar T31-Coded Chest Strap where compared by correlation and coefficient. The Bioconnected wireless exercise earpieces were considered to be valid if the correlation between the recorded heart rate of the Bioconnected device and the corresponding heart rate Polar T31-Coded Chest Strap measurement was r ≥0.90. Results. Five samples were corrupted due to displacement of chest strap (n=3) and dislodgement of earpiece (n=2) during testing, as such data from those tests were excluded from the correlation analysis. The remaining 20 data samples provided mean totals of 521±117 HR data points (earpiece) and 517±118 HR data points (chest strap). A strong correlation (r=0.97) between the Bioconnected wireless exercise earpieces and a Polar T31-Coded Chest Strap. Conclusions. The results of this study show that the HR measurements of the Bioconnected wireless exercise earpieces and the Polar Chest Strap are highly correlated, supporting the Bioconnected wireless exercise earpieces in monitoring HR during a GXT on a treadmill in healthy adults. However, as exercise transitioned from walking to jogging, at times, both devices had problems with displacement and loss of HR signal, suggesting the need for improved methods of securing both devices. Future research of the Bioconnected wireless exercise earpiece is required to evaluate performance in varying environments, levels of low light and increased background noise.
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References
Aarts, L., Jeanne, V., Cleary, J. P., Lieber, C., Stuart Nelson, J., Oetomo, S. B., et al. (2013). Non-contact heart rate monitoring utilizing camera photoplethysmography in the neonatal intensive care unit – A pilot study. Early Human Development, 89(12), 943-948. https://doi.org/10.1016/j.earlhumdev.2013.09.016
Baig, M., Gholamhosseini, H., & Connolly, M. (2013). A comprehensive survey of wearable and wireless ECG monitoring systems for older adults. Medical & Biological Engineering & Computing, 51(5), 485-495. https://doi.org/10.1007/s11517-012-1021-6
Budidha, K., & Kyriacou, P. (2014). The human ear canal: Investigation of its suitability for monitoring photoplethysmographs and arterial oxygen saturation. Physiological Measurement, 35(2), 111-128. https://doi.org/10.1088/0967-3334/35/2/111
Chan, M., Estève, D., Fourniols, J.-Y., Escriba, C., & Campo, E. (2012). Smart wearable systems: Current status and future challenges. Artificial Intelligence in Medicine, 56(3), 137-156. https://doi.org/10.1016/j.artmed.2012.09.003
Cheatham, S. W., Kolber, M. J., & Ernst, M. P. (2015). Concurrent validity of resting pulse-rate measurements: A comparison of 2 smartphone applications, the polar h7 belt monitor, and a pulse oximeter with bluetooth. Journal of Sport Rehabilitation, 24, 171-178. https://doi.org/10.1123/jsr.2013-0145
Coolbaugh, C., Anderson, I., Wilson, M., Hawkins, D., & Amsterdam, E. (2014). Evaluation of an Exercise Field Test Using Heart Rate Monitors to Assess Cardiorespiratory Fitness and Heart Rate Recovery in an Asymptomatic Population. PLoS One, 9(5). https://doi.org/10.1371/journal.pone.0097704
Crouter, S. E., Albright, C., & Bassett Jr, D. R. (2004). Accuracy of polar S410 heart rate monitor to estimate energy cost of exercise. Medicine Science Sports Exercise, 36(8), 1433–1439. https://doi.org/10.1249/01.MSS.0000135794.01507.48
Ehrman, J. K., Gordon, P. M., Visich, P. S., & Keteyian, S. J. (2013). Clinical Exercise Physiology (3rd ed.). Champaign, IL: Human Kinetics.
Engström, E., Ottosson, E., Wohlfart, B., Grundström, N., & Wisén, A. (2012). Comparison of heart rate measured by Polar RS400 and ECG, validity and repeatability. Advances in Physiotherapy, 14, 115-122. https://doi.org/10.3109/14038196.2012.694118
Eston, R., Evans, H., Faulkner, J., Lambrick, D., Al-Rahamneh, H., & Parfitt, G. (2012). A perceptually regulated, graded exercise test predicts peak oxygen uptake during treadmill exercise in active and sedentary participants. European Journal of Applied Physiology, 112(10), 3459-3468. https://doi.org/10.1007/s00421-012-2326-8
Goodie, J., Larkin, K., & Schauss, S. (2000). Validation of the Polar Heart Rate Monitor for Assessing Heart Rate During Physical and Mental Stress. Journal Of Psychophysiology, 14(3), 159-164. https://doi.org/10.1027//0269-8803.14.3.159
Leboeuf, S. F., Aumer, M. E., Kraus, W. E., Johnson, J. L., & Duscha, B. (2014). Earbud-based sensor for the assessment of energy expenditure, heart rate, and VO2max. Medicine Science Sports Exercise, 46(5), 1046-1052. https://doi.org/10.1249/MSS.0000000000000183
Parak, J., & Korhonen, I. (2014). Evaluation of wearable consumer heart rate monitors based on photopletysmography. Paper presented at the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago, IL, USA. https://doi.org/10.1109/EMBC.2014.6944419
Park, J., Jang, D., Park, J. W., & Youm, S. (2015). Wearable sensing of in-ear pressure for heart rate monitoring with a piezoelectric sensor. Sensors (Basel), 15(9), 23402–23417. https://doi.org/10.3390/s150923402
Schafer, A., & Vagedes, J. (2013). How accurate is pulse variability as an estimate of heart rate variability? A review on studies comparing photoplethysmographic technology with an electrocardiogram. International Journal of Cardiology, 166(1), 15–29. https://doi.org/10.1016/j.ijcard.2012.03.119
Segerståhl, K., & Oinas-Kukkonen, H. (2011). Designing personal exercise monitoring employing multiple modes of delivery: Implications from a qualitative study on heart rate monitoring. International Journal Of Medical Informatics, 80(12), e203-e213. https://doi.org/10.1016/j.ijmedinf.2011.08.011
Silva, R., & Ul-Haq, N. (2013). Monitoring heart rate with common market smart-phones for identifying potential signs that may lead to sudden death. Blekinge Institute of Technology, Karlskrona.
Spierer, D., Rosen, Z., Litman, L. L., & Fujii, K. (2015). Validation of photoplethysmography as a method to detect heart rate during rest and exercise. Journal of Medical Engineering & Technology, 39(5), 264-271. https://doi.org/10.3109/03091902.2015.1047536
Terbizan, D. J., Dolezal, B. A., & Albano, C. (2002). Validity of seven commercially available heart rate monitors. Measurement in Physical Education and Exercise Science, 6(4), 243–247. https://doi.org/10.1207/S15327841MPEE0604_3
Vanderlei, L., Silva, R., Pastre, C., Azevedo, F., & Godoy, M. (2008). Comparison of the Polar S810i monitor and the ECG for the analysis of heart rate variability in the time and frequency domains. Brazilian Journal of Medical and Biological Research, 41(10), 854-859. https://doi.org/10.1590/S0100-879X2008005000039
Wallen, M., Gomersall, S. R., Keating, S. E., Wisløff, U., & Coombes, J. S. (2016). Accuracy of heart rate watches: Implications for weight management. PLoS One, 11(5). https://doi.org/10.1371/journal.pone.0154420
Wang, R., Blackburn, G., Desai, M., Phelan, D., Gillinov, L., Houghtaling, P., et al. (2016). Accuracy of wrist-worn heart rate monitors. JAMA Cardiology.
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