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. 2020 Apr 28;8(4):e14707. doi: 10.2196/14707

Table 2.

Correlation analyses of heart rate readings of Young and Senior groups during different activity phases.

Group, activity, number of readings, and device Correlation




CCCa ICCb PPMCCc
Young

Rest


3620



Gad 0.9037 0.9038 0.914



Mie 0.8475 0.8475 0.8475

Walking


7200



Ga 0.8577 0.8577 0.8598



Mi 0.6074 0.6074 0.6461

Running


7200



Ga 0.8552 0.8552 0.8858



Mi 0.5428 0.5428 0.6185

Cycling


7200



Ga 0.5888 0.5889 0.6569



Mi 0.2874 0.2874 0.4037

Elliptical


7200



Ga 0.9104 0.9104 0.9261



Mi 0.3267 0.3267 0.4734

Recovery


10,800



Ga 0.8972 0.8972 0.8993



Mi 0.8863 0.8863 0.8931

Total


43,220



Ga 0.9254 0.9254 0.9277



Mi 0.7603 0.7603 0.767
Senior

Rest


3620



Ga 0.9262 0.9262 0.9306



Mi 0.7320 0.7321 0.7369

Walking


7200



Ga 0.5925 0.5925 0.722



Mi 0.4464 0.4464 0.5469

Running


7200



Ga 0.9246 0.9246 0.9311



Mi 0.4592 0.4593 0.5288

Cycling


7200



Ga 0.4799 0.4799 0.5129



Mi 0.6856 0.6856 0.7081

Elliptical


7200



Ga 0.7516 0.7516 0.7684



Mi 0.6612 0.6612 0.6992

Recovery


10,800



Ga 0.7055 0.7055 0.7253



Mi 0.7929 0.793 0.7934

Total


43,220



Ga 0.8000 0.8000 0.8084



Mi 0.7258 0.7258 0.7341

aCCC: concordance correlation coefficient.

bICC: intraclass coefficient correlation.

cPPMCC: Pearson product moment correlation coefficient.

dGA: Garmin Vivosmart HR+.

eMi: Xiaomi Mi Band 2.