US 12,138,072 B2
Apparatus and method for energy expenditure estimation
Mikko Kuisma, Lappeenranta (FI); Antti Immonen, Lappeenranta (FI); Saku Levikari, Lappeenranta (FI); Heikki Peltonen, Muurame (FI); Esa Launis, Muurame (FI); and Mika Silvennoinen, Jyväskylä (FI)
Assigned to LAPPEENRANNAN-LAHDEN TEKNILLINEN YLIOPISTO LUT, Lappeenranta (FI); and JYVÄSKYLÄN YLIOPISTO, Jyväskylän Yliopisto (FI)
Appl. No. 17/762,542
Filed by LAPPEENRANNAN-LAHDEN TEKNILLINEN YLIOPISTO LUT, Lappeenranta (FI); and JYVÄSKYLÄN YLIOPISTO, Jyväskylän yliopisto (FI)
PCT Filed Jun. 22, 2020, PCT No. PCT/FI2020/050444
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/058854, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 20195796 (FI), filed on Sep. 23, 2019.
Prior Publication US 2022/0354424 A1, Nov. 10, 2022
Int. Cl. A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/024 (2006.01); A61B 5/11 (2006.01)
CPC A61B 5/4866 (2013.01) [A61B 5/02055 (2013.01); A61B 5/1114 (2013.01); A61B 5/1118 (2013.01); A61B 5/443 (2013.01); A61B 5/4869 (2013.01); A61B 5/7264 (2013.01); A61B 5/7278 (2013.01); A61B 5/024 (2013.01); A61B 2560/0252 (2013.01); A61B 2560/0257 (2013.01); A61B 2562/0271 (2013.01); A61B 2562/029 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus for energy expenditure estimation, the apparatus comprising:
a heart rate sensor configured to produce a heart rate value indicative of a heart rate of an individual, and
a processing system communicatively connected to the heart rate sensor,
wherein the apparatus further comprises a heat-flux sensor configured to produce a heat-flux value indicative of a heat-flux flowing through a measurement area on a skin of the individual, wherein the processing system is communicatively connected to the heat-flux sensor and configured to produce an estimate of the energy expenditure based on the heart rate value and the heat-flux value, and
wherein the processing system is configured to increase a relative weight of the heart rate value on the estimate of the energy expenditure with respect to a relative weight of the heat-flux value on the estimate of the energy expenditure in response to an increase of the heart rate.