Bakgrund: Trots stark evidens för att fysisk aktivitet och träning vid kranskärlssjukdom är viktiga ur ett livslångt perspektiv för individer med kranskärlssjukdom finns begränsat med forskning kring vilka metoder som kan ha effekt på vidmakthållandet av fysisk aktivitet efter att individen genomgått den centerbaserade träningen. Syfte: Syftet med den här litteraturstudien var att granska effekten av vidmakthållande hjärtrehabilitering på fysisk aktivitet och fysisk kapacitet i sex månader eller mer hos individer med kranskärlssjukdom som genomgått centerbaserad hjärtrehabilitering. Vidare var syftet att undersöka kvalitet och tillförlitlighet i ingående artiklar.  Metod: Systematiska sökningar i databaserna AMED, PubMed och PsycINFO. Tio randomiserade kontrollerade studier inkluderades. Kvalitet bedömdes med PEDro-skalan och resultatens samlade tillförlitlighet bedömdes enligt SBU GRADE.  Resultat: Kvalitén på ingående artiklar var måttlig till medelgod. Tillförlitligheten bedömdes som mycket låg enligt SBU GRADE. Resultatet indikerade, trots stor variation av interventioner, att vidmakthållande hjärtrehabilitering kan ha effekt på fysisk aktivitet och till viss del på fysisk kapacitet (kondition). För muskelstyrka ses ingen effekt.  Konklusion: Kvalitén på de ingående artiklarna var måttlig till medelgod. Enskilda artiklar visar på signifikanta resultat som indikerar att vidmakthållande hjärtrehabilitering kan ha effekt på fysisk aktivitet och kapacitet hos individer med kranskärlssjukdom. Det sammanvägda resultatet för vidmakthållande hjärtrehabiliterings effekt på fysisk aktivitet hos individer med kranskärlssjukdom har låg tillförlitlighet bedömt med SBU GRADE. För vidmakthållande hjärtrehabiliterings effekt på fysisk kapacitet (kondition och styrka) bedöms tillförlitligheten som mycket låg. / Background: Despite evidence that physical activity and training in coronary artery disease are important from a lifelong perspective for individuals with coronary artery disease, there is limited research on which methods that can support physical activity maintenance after center-based training.  Aim: The aim of this literature study was to examine the effect of maintenance cardiac rehabilitation (M-CR) on physical activity and physical capacity for six months or more in individuals with coronary artery disease after center-based cardiac rehabilitation. The aim was also to examine the quality and reliability of included articles. Method: Systematic searches in the AMED, PubMed and PsycINFO databases. Ten randomized controlled trials were included. Quality was assessed using the PEDro scale.The overall reliability of the results was assessed according to SBU GRADE guidelines. Result: The quality of included articles was moderate to average. Reliability was assessed as low to very low according to SBU GRADE. The result indicated, despite variation of interventions, that M-CR can have an effect on physical activity and to some extent on physical capacity (fitness). For muscle strength, no significant effect is seen. Conclusion: Individual articles show significant results indicating that M-CR can have an effect on physical activity and capacity in individuals with coronary artery disease. The quality of the included articles was moderate to average. The overall reliability on physical activity was assessed as low according to SBU GRADE. And the overall reliability on physical capacity (fitness and muscle strength) was assessed as very low according to SBU GRADE.

Physical activity has been demonstrated in the literature as an effective way to reduce the risk for development of chronic disease. The Transtheoretical Model (TTM) of behavior change has been developed as a means to predict and facilitate movement into healthier lifestyle behaviors. The model is centered on "stages of change", which describe a continuum of readiness to engage in a health behavior change. Stages contain temporal, qualitative, and quantitative characteristics. This was a six-month study that evaluated the effectiveness of stage-matched (theorized to be pertaining only to the maintenance stage of change) vs. generic (theorized to be pertaining to anyone, regardless of stage) newsletters in assisting subjects to attain the Maintenance stage of change. It also sought to identify further qualitative characteristics that can differentiate between the Action and Maintenance stages of change. Results indicated that monthly stage-matched newsletters were no more effective in helping subjects reaching Maintenance than were the generic newsletters. Exerciser self-schema was related to stages of change, but those relationships differed from baseline to six-month follow-up, indicating development of exerciser self-schema during the study period. Implications of this are discussed. Other concepts discussed included "structure" of change process, in that three new scores were developed and correlated with self-efficacy as well as intercorrelated. Motivation was also evaluated and compared across levels of success at adhering to exercise during a three-month period. Limitations of the study and implications are discussed.