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

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-65
SponsorPepsiCo Global R&D

About this trial

The ability of smart phones, aided by wearable devices (e.g. smart watches), to collect a variety of data, including physical activity, heart rate, and other exercise metrics, may provide a unique opportunity to understand real-world variability. The primary objective of this study is to test user engagement, app functionality, and feasibility of the newly developed Gatorade Sports Science Institute (GSSI) Labs App to conduct Real-World research studies. The secondary purpose of this study is to determine if Training Intensity (%Heart Rate maximum) in minutes during low heart rate variability (HRV) periods (below HRV baseline consecutive days) will have a negative relationship with post-study 5K (5 kilometer) running times as measured by their activity tracker, which could lead to personalized training recommendations using HRV. This study is conducted remotely, there are no in-person visits.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

None

Disqualifiers

None

Trial population

Healthy volunteers ages 8-65, actively participating in cardiovascular training (3-5 days/week), able to run a 5K (3.1 miles) distance at a self-selected location, three times over 8 weeks, wear an activity tracker and willing to use the study smartphone app.

Trial design

Design model

Other

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

User engagement with Gatorade Sports Science Institute (GSSI) Labs app

Percent (%) who complete enrollment, informed consent form (ICF), demographics, sync biometrics, complete journal entries, 5 kilometer (5K) performance assessment, and complete study

Time frame
From activating app through study Week 8

Secondary outcomes

1

Pre-, Mid-, and Post-5K run times and wearable activity tracker biometrics: Heart rate variability (HRV)

Fluctuation in the amount of time between heartbeats in milliseconds (ms)

Time frame
Week 1 baseline, Week 4 and Week 8
2

Pre-, Mid-, and Post-5K run times and wearable activity tracker biometrics: Resting heart rate (RHR)

Heart rate at rest in beats per minute (bpm)

Time frame
Week 1 baseline, Week 4 and Week 8
3

Pre-, Mid-, and Post-5K run times and wearable activity tracker biometrics: Sleep Quantity

Sleep at night in minutes

Time frame
Week 1 baseline, Week 4 and Week 8
4

Pre-, Mid-, and Post-5K run times and wearable activity tracker biometrics: Sleep Efficiency

Percentage (%) of time spent asleep while in bed, calculated by dividing total sleep time by time in bed in hours

Time frame
Week 1 baseline, Week 4 and Week 8

Other outcomes

1

Estimated VO2 Max

Maximal oxygen consumption (VO2 max) = 15.3 x (HRmax/HRrest)

Time frame
At baseline
2

Demographics

Age, Gender, Race

Time frame
At enrollment
3

Activity details

Journal entries (Felt nervous or anxious, Have any alcoholic drinks, Have caffeine, Feel emotionally and mentally stable, Feel energized, Hydrated sufficiently, Take melatonin, Feel motivated, Felt recovered, Feeling sick or ill, and Feel stress).

Time frame
During study period from Baseline Week 1 to Week 8

Sponsors and contacts

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