MedTrace Logo

Exploring the Relationship Between Heart Rate Variability (HRV), Training Load, and Exercise Performance

NCT06425939 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 49

Last updated 2026-04-21

No results posted yet for this study

Summary

Heart rate variability (HRV) is a measure of the variation in time between each heartbeat.

It is an indirect and ubiquitous biomarker of performance readiness and recovery measured by most consumer-grade wearable fitness trackers. However, there is little documented on the relationship between HRV, training load, and performance measures in the Real-World.

Whoop wrist-worn activity trackers have been validated against the gold-standard Electrocardiography (ECG) for HRV and HR measurements. Whoop leverages photoplethysmography (PPG) technology to continuously track (HR, HRV, respiratory rate, energy expenditure) and provides, daily, individual insights, trends, and coaching to improve strain, sleep, and recovery. Research has demonstrated that heart rate variability (HRV) guided training may be more optimal compared to predetermined training for aerobic exercise improvements.

The purpose of this study is to assess the feasibility of providing personalized training recommendations based on HRV measured by a consumer-grade wearable (Whoop) in a real-world setting to better understand the HRV relationship with performance.

Conditions

  • Heart Rate Variability
  • Exercise

Interventions

OTHER

Force plate assessment

On Day 1, Day 45 and Day 90: 3x drop jumps, 2 min rest, 3x counter movement jumps, 2 min rest, 3x dynamic push-ups

DEVICE

Whoop wrist band

Whoop wrist worn activity tracker (not a medical device) collects continuous data via smartphone app. This is a marketed device. This is not a device study.

Sponsors & Collaborators

  • PepsiCo Global R&D

    lead INDUSTRY

Principal Investigators

  • Corey Ungaro, PhD · PepsiCo, Inc. Sports Science

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
25 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-05-08
Primary Completion
2024-10-11
Completion
2024-10-11

Countries

  • United States

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06425939 on ClinicalTrials.gov