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Table 1 Description of the differences between the 2006 Crouter 2-Regression Model (2006 C2RM) and Refined Crouter 2-Regression Model (Refined C2RM)

From: Validity of estimating minute-by-minute energy expenditure of continuous walking bouts by accelerometry

Model Inactivity Threshold Determination of Variability Determination of CV** If CV ≤10% If CV > 10%
2006 C2RM 50 counts min-1 six consecutive 10-s epochs CV among 6 consecutive 10-s epochs Walk/run equation Intermittent lifestyle equation
Refined C2RM 8 counts per 10 s Examines all combinations of surrounding five 10-s epochs* Lowest CV out of all possible combinations Walk/run equation Intermittent lifestyle equation
  1. *Examination includes 10-s epoch of interest and five before, 10-s epoch of interest and four epochs before and one after, etc.
  2. **CV: coefficient of variation