Exercise & Training

A wireless sweat sensing with a pH-based correlation model for continuous glucose monitoring and diabetes management during exercise.

TL;DR

A flexible wireless sweat glucose and pH sensing platform integrated with a pH-based correlation model was developed to accurately predict continuous changes in blood glucose during exercise, validated in both healthy individuals and diabetic patients to facilitate diabetes management.

Key Findings

A flexible wireless sweat sensing platform integrating glucose and pH sensors was developed for continuous blood glucose monitoring during exercise.

  • The platform combines sweat glucose and pH sensing with wireless data transmission.
  • The device is described as flexible, enabling wearable use during physical activity.
  • The system targets both healthy individuals and diabetic patients during exercise therapy, training, and fitness activities.
  • The platform integrates a pH-based correlation model to translate sweat glucose measurements into blood glucose predictions.

A pH-based correlation model was developed to calibrate for enzyme activity changes and sweat dilution effects to improve sweat-to-blood glucose prediction accuracy.

  • The model calibrates for changes in glucose oxidase enzyme activity that are pH-dependent.
  • The model accounts for sweat dilution effects during exercise.
  • The model also accounts for filtering during paracellular transport of glucose from interstitial fluid and plasma to sweat.
  • These combined corrections address the 'relatively poor correlation between sweat and blood glucose concentrations during exercise.'

The pH-based correlation model was validated in both healthy individuals and diabetic patients, revealing distinct blood glucose dynamic patterns between the two cohorts.

  • Validation was performed in both healthy individuals and diabetic patients.
  • Distinct blood glucose dynamic patterns were observed between healthy and diabetic cohorts during exercise.
  • The correlation model successfully predicted continuous changes in blood glucose from sweat measurements.
  • Specific sample sizes and statistical correlation metrics are described within the full paper.

Different glucose fluctuation patterns were observed after intake of various nutritive foods, enabling identification of hypo- and hyperglycemic risks.

  • Participants consumed various nutritive foods, and resulting glucose fluctuations were monitored.
  • The platform facilitated identification of hypoglycemic and hyperglycemic risks during training or fitness exercise.
  • Observed glucose dynamics after food intake were used to facilitate diabetes management.
  • The findings support the use of the device for dietary and exercise management decisions in diabetic patients.

The exercise-based device platform supports diabetes management through treatment evaluation and provides early prevention capabilities for at-risk populations.

  • The platform combines continuous blood glucose monitoring with diabetes management functions.
  • Effective treatment evaluation was demonstrated using the platform.
  • The system is described as capable of providing 'early prevention for the at-risk population.'
  • The authors state the platform can 'reduce or even reverse diabetes' through exercise-based monitoring and management.

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Citation

Zhang Y, Zhang S, Yang Y, Tao L, Yu F, Song C, et al.. (2026). A wireless sweat sensing with a pH-based correlation model for continuous glucose monitoring and diabetes management during exercise.. Proceedings of the National Academy of Sciences of the United States of America. https://doi.org/10.1073/pnas.2532127123