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Table 4 Multiple Regression Analysis for Weight Change from Exercise Related Behavior Change Models

From: Predicting short-term weight loss using four leading health behavior change theories

SCT – Exercise

   

Prediction Variables

β

sr2

p

   Self-efficacy (ESE)

-0.23

4.6%

0.013

   Perceived barriers (EPB)

0.10

0.8%

0.296

   Social support (ESS)

-0.14

1.8%

0.119

 

R 2 (R 2 adj. )

11.4% (9.2%)

0.002

TTM – Exercise

   

   Cognitive processes of change

-0.08

0.4%

0.481

   Behavioral processes of change

0.01

0.0%

0.931

   Stages of Change

0.05

0.2%

0.619

   Self-efficacy (ESE)

-0.26

5.2%

0.010

 

R 2 (R 2 adj. )

9.4% (6.3%)

0.019

TPB – Exercise

   

   Intentions

-0.08

0.4%

0.491

   Attitude

-0.10

0.7%

0.344

   Subjective norms

0.03

0.1%

0.733

   Perceived behavioral control

-0.12

1.0%

0.258

 

R 2 (R 2 adj. )

5.9% (2.8%)

0.116

SDT – Exercise

   

   Interest/Enjoyment (IMI)

-0.04

0.1%

0.735

   Perceived competence (IMI)

0.04

0.1%

0.759

   Importance/Effort (IMI)

-0.26

4.8%

0.015

   Pressure/Tension (IMI)

0.05

0.2%

0.630

 

R 2 (R 2 adj. )

6.4% (3.3%)

0.091

  1. All variables were entered in the model; theory-related variables were entered separately in four regression models; TTM- Transtheoretical Model; SCT Social Cognitive Theory; TPB – Theory of Planned Behavior; SDT – Self Determination Theory; ESE – Exercise Self-Eficcay; EPB – Exercise Perceived Barriers; ESS – Exercise Social Support; IMI – Intrinsic Motivation Inventory; R2 adj., R square adjusted; sr2, semi-partial correlation coefficient