Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial)
<p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabe...
Ausführliche Beschreibung
Autor*in: |
Sutton Stephen [verfasserIn] Michie Susan [verfasserIn] Kinmonth Ann [verfasserIn] Hardeman Wendy [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2009 |
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Übergeordnetes Werk: |
In: International Journal of Behavioral Nutrition and Physical Activity - BMC, 2004, 6(2009), 1, p 16 |
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Übergeordnetes Werk: |
volume:6 ; year:2009 ; number:1, p 16 |
Links: |
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DOI / URN: |
10.1186/1479-5868-6-16 |
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Katalog-ID: |
DOAJ022007296 |
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520 | |a <p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< | ||
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10.1186/1479-5868-6-16 doi (DE-627)DOAJ022007296 (DE-599)DOAJb347b4171f1942f6b99c21300a9bd397 DE-627 ger DE-627 rakwb eng RC620-627 RA1-1270 Sutton Stephen verfasserin aut Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< Nutritional diseases. Deficiency diseases Public aspects of medicine Michie Susan verfasserin aut Kinmonth Ann verfasserin aut Hardeman Wendy verfasserin aut In International Journal of Behavioral Nutrition and Physical Activity BMC, 2004 6(2009), 1, p 16 (DE-627)378572342 (DE-600)2134691-4 14795868 nnns volume:6 year:2009 number:1, p 16 https://doi.org/10.1186/1479-5868-6-16 kostenfrei https://doaj.org/article/b347b4171f1942f6b99c21300a9bd397 kostenfrei http://www.ijbnpa.org/content/6/1/16 kostenfrei https://doaj.org/toc/1479-5868 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4598 GBV_ILN_4700 AR 6 2009 1, p 16 |
spelling |
10.1186/1479-5868-6-16 doi (DE-627)DOAJ022007296 (DE-599)DOAJb347b4171f1942f6b99c21300a9bd397 DE-627 ger DE-627 rakwb eng RC620-627 RA1-1270 Sutton Stephen verfasserin aut Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< Nutritional diseases. Deficiency diseases Public aspects of medicine Michie Susan verfasserin aut Kinmonth Ann verfasserin aut Hardeman Wendy verfasserin aut In International Journal of Behavioral Nutrition and Physical Activity BMC, 2004 6(2009), 1, p 16 (DE-627)378572342 (DE-600)2134691-4 14795868 nnns volume:6 year:2009 number:1, p 16 https://doi.org/10.1186/1479-5868-6-16 kostenfrei https://doaj.org/article/b347b4171f1942f6b99c21300a9bd397 kostenfrei http://www.ijbnpa.org/content/6/1/16 kostenfrei https://doaj.org/toc/1479-5868 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4598 GBV_ILN_4700 AR 6 2009 1, p 16 |
allfields_unstemmed |
10.1186/1479-5868-6-16 doi (DE-627)DOAJ022007296 (DE-599)DOAJb347b4171f1942f6b99c21300a9bd397 DE-627 ger DE-627 rakwb eng RC620-627 RA1-1270 Sutton Stephen verfasserin aut Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< Nutritional diseases. Deficiency diseases Public aspects of medicine Michie Susan verfasserin aut Kinmonth Ann verfasserin aut Hardeman Wendy verfasserin aut In International Journal of Behavioral Nutrition and Physical Activity BMC, 2004 6(2009), 1, p 16 (DE-627)378572342 (DE-600)2134691-4 14795868 nnns volume:6 year:2009 number:1, p 16 https://doi.org/10.1186/1479-5868-6-16 kostenfrei https://doaj.org/article/b347b4171f1942f6b99c21300a9bd397 kostenfrei http://www.ijbnpa.org/content/6/1/16 kostenfrei https://doaj.org/toc/1479-5868 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4598 GBV_ILN_4700 AR 6 2009 1, p 16 |
allfieldsGer |
10.1186/1479-5868-6-16 doi (DE-627)DOAJ022007296 (DE-599)DOAJb347b4171f1942f6b99c21300a9bd397 DE-627 ger DE-627 rakwb eng RC620-627 RA1-1270 Sutton Stephen verfasserin aut Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< Nutritional diseases. Deficiency diseases Public aspects of medicine Michie Susan verfasserin aut Kinmonth Ann verfasserin aut Hardeman Wendy verfasserin aut In International Journal of Behavioral Nutrition and Physical Activity BMC, 2004 6(2009), 1, p 16 (DE-627)378572342 (DE-600)2134691-4 14795868 nnns volume:6 year:2009 number:1, p 16 https://doi.org/10.1186/1479-5868-6-16 kostenfrei https://doaj.org/article/b347b4171f1942f6b99c21300a9bd397 kostenfrei http://www.ijbnpa.org/content/6/1/16 kostenfrei https://doaj.org/toc/1479-5868 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4598 GBV_ILN_4700 AR 6 2009 1, p 16 |
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Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) |
abstract |
<p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< |
abstractGer |
<p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< |
abstract_unstemmed |
<p<Abstract</p< <p<Background</p< <p<In the <it<ProActive </it<Trial an intensive theory-based intervention program was no more effective than theory-based brief advice in increasing objectively measured physical activity among adults at risk of Type 2 diabetes. We aimed to illuminate these findings by assessing whether the intervention program changed cognitions about increasing activity, defined by the Theory of Planned Behaviour, in ways consistent with the theory.</p< <p<Methods</p< <p<<it<N </it<= 365 sedentary participants aged 30–50 years with a parental history of Type 2 diabetes were randomised to brief advice alone or to brief advice plus the intervention program delivered face-to-face or by telephone. Questionnaires at baseline, 6 and 12 months assessed cognitions about becoming more physically active. Analysis of covariance was used to test intervention impact. Bootstrapping was used to test multiple mediation of intervention impact.</p< <p<Results</p< <p<At 6 months, combined intervention groups (face-to-face and telephone) reported that they found increasing activity more enjoyable (affective attitude, <it<d </it<= .25), and they perceived more instrumental benefits (e.g., improving health) (<it<d </it<= .23) and more control (<it<d </it<= .32) over increasing activity than participants receiving brief advice alone. Stronger intentions (<it<d </it<= .50) in the intervention groups than the brief advice group at 6 months were partially explained by affective attitude and perceived control. At 12 months, intervention groups perceived more positive instrumental (<it<d </it<= .21) and affective benefits (<it<d </it<= .29) than brief advice participants. The intervention did not change perceived social pressure to increase activity.</p< <p<Conclusion</p< <p<Lack of effect of the intervention program on physical activity over and above brief advice was consistent with limited and mostly small short-term effects on cognitions. Targeting affective benefits (e.g., enjoyment, social interaction) and addressing barriers to physical activity may strengthen intentions, but stronger intentions did not result in more behaviour change. More powerful interventions which induce large changes in TPB cognitions may be needed. Other interventions deserving further evaluation include theory-based brief advice, intensive measurement of physical and psychological factors, and monitoring of physical activity. Future research should consider a wider range of mediators of physical activity change, assess participants' use of self-regulatory strategies taught in the intervention, and conduct experimental studies or statistical modelling prior to trial evaluation. ISRCTN61323766.</p< |
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Impact of a physical activity intervention program on cognitive predictors of behaviour among adults at risk of Type 2 diabetes (<it<ProActive </it<randomised controlled trial) |
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https://doi.org/10.1186/1479-5868-6-16 https://doaj.org/article/b347b4171f1942f6b99c21300a9bd397 http://www.ijbnpa.org/content/6/1/16 https://doaj.org/toc/1479-5868 |
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Michie Susan Kinmonth Ann Hardeman Wendy |
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