A Twin-Sibling Study on the Relationship Between Exercise Attitudes and Exercise Behavior

摘要: Social cognitive models of health behavior propose that individual differences in leisure time exercise are influenced by the attitudes towards exercise. At same time, large scale twin-family studies show a significant influence genetic factors on regular behavior. This twin–sibling study aimed to unite these findings demonstrating can be heritable themselves. Secondly, and environmental cross-trait correlations monozygotic (MZ) twin intrapair model were used test whether association between causal. Survey data obtained from 5,095 twins siblings (18–50 years). A contribution was found for (50 % males, 43 females) six attitude components derived principal component analysis: perceived benefits (21, 27 %), lack skills, support and/or resources (45, 48 constraints (25, 30 energy (34, 44 enjoyment (47, embarrassment (42, 49 %). These predictive (R² = 28 Bivariate modeling further showed all (0.36 < |rA| 0.80) but two unique (0.00 |rE| 0.27) significantly different zero, which is necessary condition existence causal effect driving association. The MZ twins’ difference scores line with this finding. It concluded heritable, partly correlated through pleiotropic effects, compatible