To calculate the energy expenditure (refer to this link under "energyadjusted"), Hexoskin uses a formula that considers your age, gender, your HRmax and your HRrest (equation for Mifflin-Keytel). Your HRmax and your HRrest are calculated when you complete the Fitness Tests in the Hexoskin App.
Below hr_rest, the equation is based on basal metabolic rate measured by Mifflin St Jeor Equation*.
Above hr_max * 0.6. The equation is given by the Keytel equation**.
Between hr_rest and hr_max * 0.6. The equation is the ponderated sum of basal metabolic rate Mifflin St Jeor Equation and of Keytel equation measured at hr_max * 0.6.
Energy consume (watt) = Mifflin * (hr_max * 0.6 -HR) / (max_hr * 0.6-hr_rest) + Keytel(hr_max * 0.6)* (HR-hr_rest)/(hr_max * 0.6-hr_rest)
Mifflin St Jeor Equation :
Energy consumemen watt = 0.048379 * (10.1 * weight + 625 * height - 5.0 * age + 5)
Energy consumewomen watt = 0.048379 *(10.1 * weight + 625 * height - 5.0 * age - 165)
Energy consumemen (HR)watt = (-59.3954-36.3781+0.271*age+0.394*weight+0.404*VO2_max+ 0.634*HR ) *16.66
Energy consumewomen (HR)watt = (-59.3954+0+0.274*age+0.103*weight+0.380*VO2_max+ 0.450*HR ) *16.66
*Mifflin, M. D., St Jeor, S. T., Hill, L. A., Scott, B. J., Daugherty, S. A., & Koh, Y. O. (1990). A new predictive equation for resting energy expenditure in healthy individuals. The American Journal of Clinical Nutrition, 51(2), 241–247.
**Keytel, L. R., Goedecke, J. H., Noakes, T. D., Hiiloskorpi, H., Laukkanen, R., van der Merwe, L., & Lambert, E. V. (2005). Prediction of energy expenditure from heart rate monitoring during submaximal exercise. Journal of Sports Sciences, 23(3), 289–297.
Keywords: calories, user account, cal, kcal, demographics