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Linear regression of heart rate analysis revealed excellent correlations with an R of 0.99 (p 0.05). Similar linear regression evaluation of R-R interval correlation demonstrated a mean R value of 0.95 (p 0.05). Statistically significant correlation was achieved in all 26 included study participants. Heart rate variability also achieved excellent correlation (SDNN R = 0.997, RMSSD R = 0.995, LnRMSSD R = 0.992, p 0.05). Results demonstrate that the WFM achieves excellent correlation with chest ECG for heart rate, R-R in