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RESEARCH PRODUCT

Heart rate rather than heart rate variability is better associated with cardiorespiratory fitness in adults

Francisco J. Amaro-gaheteFrancisco J. Amaro-gaheteJerzy SachaJerzy SachaAbel Plaza-floridoJuan M. A. AlcantaraFrancisco M. Acosta

subject

Malemedicine.medical_specialty030209 endocrinology & metabolismPhysical Therapy Sports Therapy and RehabilitationYoung Adult03 medical and health sciences0302 clinical medicineHeart RateInternal medicineHeart ratemedicineHumansHeart rate variabilityOrthopedics and Sports MedicineExercisebusiness.industryBody WeightCardiorespiratory fitness030229 sport sciencesGeneral MedicineMiddle AgedOxygen uptakeAutonomic nervous systemCross-Sectional StudiesCardiorespiratory FitnessPhysical FitnessCardiologyFemalebusiness

description

This study aimed to examine the association of heart rate (HR) and heart rate variability (HRV) with cardiorespiratory fitness (CRF) in adults. This cross-sectional study included 204 participants: 132 young adults (67% women; 22.3 ± 2.3 years) and 72 middle-aged adults (53% women; 53.2 ± 5 years). HR and HRV were measured using a Polar RS800CX heart rate monitor. CRF was assessed using a metabolic cart during an incremental test. HR was negatively associated with CRF relative to body weight (BW) in young adults adjusting for sex, age, and physical activity (β ranged from -0.200 to -0.195; all

yearjournalcountryeditionlanguage
2021-03-22European Journal of Sport Science
https://doi.org/10.1080/17461391.2021.1892198