Physical Activity Summary

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    • Guidelines
      • 1450 minutes a week
      • bone strengthening, muscle toning and aerobic
      • Most people don't meet guidelines
      • minimise amount of time spent sedentary
      • Need to find activity people will enjoy - not currently done!
    • Interventions
      • Walking
        • Darker et al. (2009) PBC key determinant, and was increased. Change maintained 6+ weeks
        • French, Stevenon & Michie (2012) large/sig increase in walking in combined intervention, increased SE too
      • Weight Loss
        • Bravata et al. (2009) pedometer use significantly reduced BMI
      • General PA
        • King et al. (1980)
        • Kolt et al. (2007) 186 low active adults, RCT, telephone counselling. PA increased!
        • Bravata et al. (2009) Pedometer use significantly increased PA by 27%
    • definitions
      • Exercise: subcategory of PA which specifically aims to improve health
      • PA: any movement of the body produced by skeletal muscles that results in energy expenditure
    • Why is it a problem?
      • CHD, diabetes, cost to NHS and lost work days
      • only 1/2 women aged 45-54 years meet guidelines
      • Physical activity decreases with age
    • Models
      • HBM
        • perceived barriers have been shown to significantly predict/correlate with levels of PA (King et al. 1980)
        • May be more useful for those who see PA as risk avoiding (King et al 1980)
        • Evidence shows that parents and children don’t walk as much due to ‘perceived barriers’ (McDonald & Aalborg, 2009).
      • SCT
        • King et al (1980)elf-efficacy used a lot in research and mostly found to have positive associations with PA
        • Booth et al (2000) high SE, regular friends/family participation, finding safe footpaths all significantly associated with being active
        • Dzewatowski et al (1990) SCT variables significant predict PA (better than TPB)
      • TPB
        • Armitage (2005) PBC significant predictor of intentions. Successful prior performance increased perceptions of control.
        • French, Stevenon & Michie (2012) 3 motivational & 3 volitional techniques.
        • Dwewatowski et al. (1990) PBC, intention & attitudes predicted PA
        • Dishman et al (2003) SE and satisfaction important. Intervention = direct effects on SE, goal setting and PA.


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