Wrist-Worn Wearables for Monitoring Heart Rate and Energy Expenditure While Sitting or Performing Light-to-Vigorous Physical Activity: Validation Study

Peter Düking   ^{1 *} , MSc ;   Laura Giessing   ^{2 *} , MSc ;   Marie Ottilie Frenkel   ^{2 *} , PhD ;   Karsten Koehler   ^{3 *} , PhD ;   Hans-Christer Holmberg   ^{4, 5 *} , PhD ;   Billy Sperlich   ^{1 *} , PhD

¹ Integrative and Experimental Exercise Science, Department of Sport Science, University of Würzburg, Würzburg, DE

² Department of Sport Psychology, Institute for Sport and Sport Sciences, Heidelberg University, Heidelberg, DE

³ Department of Sport and Health Science, Technical University of Munich, Munich, DE

⁴ Department of Health Sciences, Mid Sweden University, Östersund, SE

⁵ Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, SE

*all authors contributed equally