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Bland and Altman analysis: Active Style Pro and ActiGraph using four equations (METs). (a) Freedson, walking with bag. (b) Santos-Lozano VT, slow walking. (c) Santos-Lozano VT, brisk walking. (d) Sasaki, brisk walking. (e) Sasaki, walking with bag. (f) Santos-Lozano VM, slow walking.
