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 ?
Randomized Controlled Trial of Aerobic Exercise on Insulin and Insulin-like Growth Factors in Breast Cancer Survivors: The Yale Exercise and Survivorship Study
Background : High insulin and insulin-like growth factor-I ( IGF-I ) levels may be associated with an increased breast cancer risk and /or death . Given the need to identify modifiable factors that decrease insulin , IGF-I , and breast cancer risk and death , we investigated the effects of a 6-month r and omized controlled aerobic exercise intervention versus usual care on fasting insulin , IGF-I , and its binding protein ( IGFBP-3 ) in postmenopausal breast cancer survivors . Methods : Seventy-five postmenopausal breast cancer survivors were identified from the Yale-New Haven Hospital Tumor Registry and r and omly assigned to an exercise ( n = 37 ) or usual care  ( n = 38 ) group . The exercise group participated in 150 minutes per week of moderate-intensity aerobic exercise . The usual care group was instructed to maintain their current physical activity level . A fasting blood sample was collected on each study participant at baseline and 6 months . Blood levels of insulin and IGF were measured with ELISA . Results : On average , exercisers increased  aerobic exercise  by 129 minutes per week compared with 45 minutes per week among usual care participants ( P < 0.001 ) . Women r and omized to exercise experienced decreases in insulin , IGF-I , and IGFBP-3 , whereas women r and omized to usual care had increases in these hormones . Between-group differences in insulin , IGF-I , and IGFBP-3 were 20.7 % ( P = 0.089 ) , 8.9 % ( P = 0.026 ) , and 7.9 % ( P = 0.006 ) , respectively . Conclusions : Moderate-intensity aerobic exercise , such as brisk walking , decreases IGF-I and IGFBP-3 . The exercise-induced decreases in IGF may mediate the observed association between higher levels of physical activity and improved survival in women diagnosed with breast cancer . ( Cancer Epidemiol Biomarkers Prev 2009;18(1):306–13
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 ?