Published on in Vol 9, No 1 (2022): Jan-Mar
![Accuracy of Heart Rate Measurement by the Fitbit Charge 2 During Wheelchair Activities in People With Spinal Cord Injury: Instrument Validation Study Accuracy of Heart Rate Measurement by the Fitbit Charge 2 During Wheelchair Activities in People With Spinal Cord Injury: Instrument Validation Study](https://asset.jmir.pub/assets/3bbf6dd422501be7142debec74b36b83.png 480w,https://asset.jmir.pub/assets/3bbf6dd422501be7142debec74b36b83.png 960w,https://asset.jmir.pub/assets/3bbf6dd422501be7142debec74b36b83.png 1920w,https://asset.jmir.pub/assets/3bbf6dd422501be7142debec74b36b83.png 2500w)
1 Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
2 Amsterdam Rehabilitation Research Center, Reade, Amsterdam, Netherlands
3 Leiden Institute of Advanced Computer Science, Leiden University, Leiden, Netherlands
4 Molecular Epidemiology, Department of Biomedical Data Science, Leiden University Medical Center, Leiden, Netherlands
5 Faculty of Health, Sports and Social Work, Inholland University of Applied Sciences, Haarlem, Netherlands
6 Center for Adapted Sports, Amsterdam Institute of Sport Science, Amsterdam, Netherlands