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Table 5 Factor analysis based on the four physical activity component scores.

From: Distinguishing four components underlying physical activity: a new approach to using physical activity questionnaire data in old age

  Factor
  1 2 3 4
Item*     
Muscle strength component .96 - - -
Intensity component .90 - - -
Mechanical strain component - .99 - -
Turning actions component - - .99 -
Value     
Eigenvalue 2.02 0.98 0.84 0.15
% Variance Explained 51 25 21 4
  1. * Only factor loadings >0.4 are shown.