Table 4 Summary of characteristics derived from articles in Table 3 concerning additional predictors for studies with additional prediction model

From: Prediction of activity-related energy expenditure using accelerometer-derived physical activity under free-living conditions: a systematic review

Studies with additional prediction model (n=10)a

Additional predictors b

 Sex

2

 Age

2

 Height

3

 Weight

7

 Fat-free mass

4

 Body fat

2

 Other

4

Maximal number of additional predictors c

 1

4

 2

4

 3

2

Partial R2c (for accelerometer output)

 NS

4

 0.00–0.20

2

 0.21–0.40

3

 0.41–0.60

1

 0.61–0.80

0

 >0.80

0

  1. Abbreviation: NS, not stated.
  2. Values are number of studies.
  3. aNot including Pomeroy et al.17
  4. bAllocation to more than one category possible because of various developed models.
  5. cIn studies with various models the best model was selected (defined as having greatest total R2 along with lowest number of predictors).
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