Research
Errata
Brage S, Ekelund U, Brage N, Hennings MA, Froberg K, Franks PW, and Wareham NJ. Hierarchy of individual calibration levels for heart rate and accelerometry to measure physical activity. J Appl Physiol. 2007;103:682-692.
Table 3: Equation 7
The constant should be +207 (not -207 as published) in the last equation (level 7). The correct equation is:
PAI = 5.5 HRaS + 1.6 HRaS x gender - 7.8 SHR x gender + 338 gender - 4.7 SHR + 207
