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Table 4 Predictors of compulsive exercise in adolescents

From: Under pressure to exercise: a cross-sectional study of characteristics and predictors of compulsive exercise in early adolescents

Independent variable

Model 1

Model 2

Model 3

Model 4

Model 5

Model 6

Block 1

      

Sex

 − 0.13*

 − 0.14*

 − 0.15*

 − 0.12*

 − 0.13*

 − 0.16**

Block 2

      

PA level, cpm

 

 − 0.02

 − 0.01

0.02

0.02

0.03

Use of exercise monitoring tools

 

0.21***

0.21***

0.15**

0.16**

0.15**

Exercise arena: organized sports

 

0.13*

0.13*

0.002

 − 0.01

0.01

Exercise arena: fitness training centre

 

0.04

0.03

 − 0.003

 − 0.01

0.005

Block 3

      

BMI, kg/m2

  

0.07

0.07

0.10

0.02

Block 4

      

BREQ amotivation

   

0.06

0.06

0.07

BREQ external regulation

   

 − 0.02

 − 0.01

 − 0.03

BREQ introjected regulation

   

0.44***

0.49***

0.46***

BREQ identified regulation

   

0.15

0.10

0.13

BREQ intrinsic motivation

   

 − 0.09

 − 0.14

 − 0.13

Block 5

      

HRQOL physical health

    

0.06

0.07

HRQOL psychological health and wellbeing

    

 − 0.09

 − 0.02

HRQOL parent relations and autonomy

    

0.14*

0.14*

HRQOL social support and peers

    

0.10

0.05

HRQOL school environment

    

0.07

0.04

Block 6

      

Weight loss attempts past 12 months

     

0.22***

Weight gain attempts past 12 months

     

 − 0.004

Adjusted R2

0.01

0.06

0.06

0.28

0.31

0.34

  1. Use of standardized regression coefficients (β-value) from hierarchical linear regression analysis
  2. Dependent variable: Total Compulsive Exercise Test score. BMI body mass index. PA physical activity. BREQ Behavioural Regulation of Exercise Questionnaire
  3. *p < 0.05. **p < 0.01. ***p < 0.001