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Real-Time Digital Biometric Monitoring during Elite Athletic Competition: System Feasibility with a Wearable

Mark A Gorski¹, Stanley M Mimoto¹, Vivek Khare¹

¹Sports Data Labs Inc., Detroit, Michigan, USA.

Digital Biomarkers

|April 1, 2021

Summary

This study shows that a novel wearable sensor system can accurately capture real-time heart rate (HR) data from elite athletes during professional competition, offering new insights into athletic performance.

Keywords:

Athletic performance Digital biomarkers Real-time monitoring Wearable sensors

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Area of Science:

Sports Science
Biomedical Engineering
Wearable Technology

Background:

Real-time heart rate (HR) monitoring in sports offers valuable physiological insights.
Current methods for elite athletes are often non-real-time, cumbersome, and not suitable for competition.
There is a need for accurate, non-intrusive HR monitoring during professional athletic events.

Purpose of the Study:

To assess the feasibility of using small, wearable medical-grade sensors (BioStamp nPoint®) with a novel system for real-time HR monitoring.
To compare the performance of the BioStamp nPoint® sensor against a Polar chest strap HR sensor during professional competition.
To evaluate the accuracy and reliability of the system for capturing HR data in elite athletes.

Main Methods:

The BioStamp nPoint® sensor was compared to a Polar chest strap HR sensor in 15 Professional Squash Association (PSA) tournament matches.
Fourteen male professional squash players participated in the study.
Proprietary algorithms from Sports Data Labs (SDL) processed real-time HR data, with performance assessed using measures of agreement.

Main Results:

The system successfully captured 99.8% of HR data across all matches.
The BioStamp system demonstrated high agreement with the Polar sensor, with a mean HR difference of 1.0 bpm and a mean absolute error of 2.2 bpm (0.72% difference).
A strong correlation (Spearman's r _s = 0.986, p < 0.001) was observed between the two devices.

Conclusions:

It is feasible to accurately measure and monitor real-time HR in elite athletes during competition using the BioStamp and SDL system.
This technology enables the development and understanding of physiological digital biomarkers for athletic performance.
The system provides insights into the physical and psychosocial demands of elite athletic competition.