Results

“The full range of HR measurements across all participants was similar between

the EQ02+ (43 to 205 bpm) and H10 (41 to 207 bpm). Figure 2 shows the agreement

between measurements from the EQ02+ and H10 monitoring systems from the

complete dataset. Heart rates continuously monitored over the laboratory visits by the

EQ02+ and H10 were in close agreement (Bias ± SD, -0.3 ± 3.7 bpm; 95% LoA, [-7.5,

7.0 bpm]; R2, 0.991; CCC, 0.996)

When examining individual activities, the EQ02+ demonstrated similar accuracy
and precision for the supine rest (Bias ± SD, -0.3 ± 3.4 bpm; 95% LoA, [-6.6, 5.5 bpm];
R2, 0.775; CCC, 0.878) as during the incremental walk (Bias ± SD, -0.4 ± 2.8 bpm; 95%
LoA, [-5.8, 5.0 bpm]; R2, 0.977; CCC, 0.988). The EQ02+ and H10 systems had slightly
lower precision but higher correlations during the incremental run (Bias ± SD, -1.1 ± 4.0 bpm; 95% LoA, [-8.9, 6.8 bpm]; R2, 0.982; CCC, 0.990) and verification run (Bias ± SD,

-0.3 ± 3.8 bpm; 95% LoA, [-7.6, 7.1 bpm]; R2, 0.981; CCC, 0.990). Out of the five

activities, the limits of agreement were widest during the load carriage test (Bias ± SD,

1.1 ± 5.4 bpm; 95% LoA, [-9.5, 11.6 bpm]; R2, 0.875; CCC, 0.932).”

CONCLUSION
“The Equivital EQ02+ LifeMonitor is an acceptable body sensor for continuous heart rate monitoring of work/rest cycles across the physiological limits of
cardiovascular function. Users can be confident in the accuracy of resting and maximal
heart rates easured by the EQ02+ during standardized laboratory testing. These advantages combined provide military users with enhanced programming and
evaluation of relative physical workloads in individual Warfighters.”