Interventions to promote exercise in cancer survivors who report better levels of adherence share some common behaviour change techniques .
These involve setting programme goals , prompting practise and self-monitoring and encouraging participants to attempt to generalise behaviours learned in supervised exercise environments to other , non-supervised context s. However , expecting most sedentary survivors to achieve current guideline recommendations of at least 150 minutes per week of aerobic exercise is likely to be unrealistic .
BACKGROUND The beneficial effects of regular exercise for people living with or beyond cancer are becoming apparent .
However , how to promote exercise behaviour in sedentary cancer cohorts is not as well understood .
A large majority of people living with or recovering from cancer do not meet exercise recommendations .
Hence , review ing the evidence on how to promote and sustain exercise behaviour is important .
OBJECTIVES To assess the effects of interventions to promote exercise behaviour in sedentary people living with and beyond cancer and to address the following questions : Which interventions are most effective in improving aerobic fitness and skeletal muscle strength and endurance ?
What adverse effects are attributed to different exercise interventions ?
Which interventions are most effective in improving exercise behaviour amongst patients with different cancers ?
Which interventions are most likely to promote long-term ( 12 months or longer ) exercise behaviour ?
What frequency of contact with exercise professionals is associated with increased exercise behaviour ?
What theoretical basis is most often associated with increased exercise behaviour ?
What behaviour change techniques are most often associated with increased exercise behaviour ?
Effect of physical activity and body size on survival after diagnosis with colorectal cancer
Background : Physical inactivity and obesity increase the risk of  colorectal cancer  but little is known about whether they influence prognosis after diagnosis . Methods : Incident cases of colorectal cancer were identified among participants of the Melbourne Collaborative Cohort Study , a prospect i ve cohort study of 41 528 Australians recruited from 1990 to 1994 . Participants diagnosed with their first colorectal cancer between recruitment and 1 August 2002 were eligible . At the time of study entry , body measurements were taken and participants were interviewed about their physical activity . Information on tumour site and stage , treatments given , recurrences , and deaths were obtained from systematic review of the medical records . Results : A total of 526 cases of colorectal cancer were identified . Median follow up among survivors was 5.5 years , and 208 deaths had occurred , including 181 from colorectal cancer . After adjusting for age , sex , and tumour stage , exercisers had an improved disease specific survival ( hazard ratio 0.73 ( 95 % confidence interval ( CI ) 0.54–1.00 ) ) . The benefit of exercise was largely confined to stage II – III tumours ( hazard ratio 0.49 ( 95 % CI 0.30–0.79 ) ) . Increasing per cent body fat result ed in an increase in disease specific deaths ( hazard ratio 1.33 per 10 kg ( 95 % CI 1.04–1.71 ) ) . Similarly , increasing waist circumference reduced disease specific survival ( hazard ratio 1.20 per 10 cm ( 95 % CI 1.05–1.37 ) ) . Conclusions : Increased central adiposity and a lack of regular physical activity prior to the diagnosis of colorectal cancer is associated with poorer overall and disease specific survival
Interventions to promote exercise in cancer survivors who report better levels of adherence share some common behaviour change techniques .
These involve setting programme goals , prompting practise and self-monitoring and encouraging participants to attempt to generalise behaviours learned in supervised exercise environments to other , non-supervised context s. However , expecting most sedentary survivors to achieve current guideline recommendations of at least 150 minutes per week of aerobic exercise is likely to be unrealistic .
BACKGROUND The beneficial effects of regular exercise for people living with or beyond cancer are becoming apparent .
However , how to promote exercise behaviour in sedentary cancer cohorts is not as well understood .
A large majority of people living with or recovering from cancer do not meet exercise recommendations .
Hence , review ing the evidence on how to promote and sustain exercise behaviour is important .
OBJECTIVES To assess the effects of interventions to promote exercise behaviour in sedentary people living with and beyond cancer and to address the following questions : Which interventions are most effective in improving aerobic fitness and skeletal muscle strength and endurance ?
What adverse effects are attributed to different exercise interventions ?
Which interventions are most effective in improving exercise behaviour amongst patients with different cancers ?
Which interventions are most likely to promote long-term ( 12 months or longer ) exercise behaviour ?
What frequency of contact with exercise professionals is associated with increased exercise behaviour ?
What theoretical basis is most often associated with increased exercise behaviour ?
What behaviour change techniques are most often associated with increased exercise behaviour ?