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

Inclusion Criteria:

1. Actively participating in resistance training 2-4 times per week.

2. Age 21-50 years, male and female.

3. Subject is willing to refrain from vigorous exercise (light physical activity only) 24 hours prior to visit(s).

4. Subject is willing to avoid alcohol consumption 24 hours prior to visit(s).

5. Subject is willing to provide consent.

6. Subject is able to continuously wear a wrist-worn device, including during sleep,except when submerged underwater (i.e., swimming, bathing).

Exclusion Criteria:

1. Individual has a condition the Investigator believes would interfere with hisability to provide informed consent, comply with the project/study protocol, whichmight confound the interpretation of the project/study results or put the person atundue risk.

2. Those with a medical history that would interfere with the results of this study.

3. Under the care of a physician.

4. Skin sensitivities.

5. Sleep disorders.

6. Using prescription medications that would impact sleep.

7. If female, you are not pregnant, planning to get pregnant or currently breastfeeding.

8. Smoker.

9. Not able to wear wrist-worn device continuously.

10. Lack of proficiency in English.

11. Lack of proficiency or access to the internet and email address.

12. Participation in another clinical trial within the past 30 days.

13. Subject is employed by, or has a parent, guardian, or other immediate family memberemployed by a company that manufactures any products that compete with any Gatoradeproduct. If subject is unsure if a company would be considered a competitor toGatorade, they will be asked to please let the study investigator know the name ofthe other company and the nature of their relationship to that company before theysign the informed consent.