Miss Pamela Flynn
Cancer Care Research Centre
School of Nursing
Midwifery and Health
Unit 1 Scion House
University of Stirling
+44 (0)1786 849260
A pilot study of a randomised controlled trial to evaluate the effects of physical activity consultations on the physical activity levels and other health outcomes of people living with colorectal cancer and their partners
Evidence suggests that increased physical activity following diagnosis and treatment for colorectal cancer may reduce the risk of disease recurrence after 2.7 years and improve survival by up to 50%. Studies have also shown an association between increased physical activity and other health outcomes for people living with colorectal cancer, for example improved quality of life and improved mental well-being.
Partners may play a role in affecting physical activity behaviour change. The family can be a significant determinant of individual health behaviours. Shared familial environmental factors have been shown to partly account for similarities in physical activity levels amongst family members.
Research has also shown that spousal support is an important factor in smoking cessation, use of health services and weight reduction. Partners may be also a receptive target for physical activity behaviour change. Physical activity consultations may help to increase the physical activity levels and improve the health outcomes of the partners of people living with colorectal cancer as well as the patient.
To evaluate the feasibility of conducting a randomised controlled trial of physical activity consultations with people living with colorectal cancer and their partners.
1. Is it possible to recruit patients who have completed all surgery and treatment for colorectal cancer in the last 24 months?
2. What would a likely response rate be for a future randomised controlled trial?
3. What are the demographic characteristics of those who are recruited to the study?
4. Can participants be retained in the study for the full 6 months?
5. Is it possible to conduct joint physical activity consultations with people living with colorectal cancer and their partners?
6. Are the outcome measures able to be used and acceptable for use with people living with colorectal cancer and their partners?
7. What would the effect size be for a future power calculation?
To evaluate the effects of physical activity consultations on physical activity levels, mental health, quality of life and body composition.
1. What is the effect of physical activity consultations on the physical activity levels of people living with colorectal cancer and their partners?
2. What is the effect of physical activity consultations on depression and anxiety?
3. What is the effect of physical activity consultations on quality of life?
4. What is the effect of physical activity consultations on body composition?
5. Do cancer and other health risk perceptions, intra-couple support and self-efficacy predict any changes in physical activity levels?
West of Scotland Research Ethics Committee 2 approved on the 2nd August 2010 (ref: 10/S0709/39)
Single-centre prospective non-blinded randomised controlled pilot study
Primary study design
Secondary study design
Randomised controlled trial
Quality of life
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
The intervention for this study is joint physical activity consultations. Physical activity consultations involve face-to-face discussions and include, for example, assessment of current levels of physical activity, exploration of pros and cons of being active, exploration of physical activity options and the setting of realistic and achievable physical activity goals. The aim of the consultation is to develop an activity plan that is tailored to the participant's lifestyle, motivation and health status. The activity plan will be developed for the couple, although within this their physical activities may vary and they may choose to exercise independently of one another. Couples will be encouraged to become and remain regularly physically active in order to achieve health and fitness benefits, in other words to meet the physical activity recommendations for adults.
All couples who take part in the study will be randomly assigned to either Group 1 (Intervention: Physical activity consultations) or Group 2 (Control: Usual care).
Couples in the Intervention arm of the trial will receive a 1 - 2 hour face-to-face physical activity consultation after baseline measures and a consultation 3 months after the first consultation. Couples will also receive 2 contact telephone calls from the researcher following each consultation; one at 3 weeks and one at 7 weeks (4 in total throughout their participation in the study).
Couples in the control arm of the trial will receive usual care. This involves a follow up appointment at the hospital clinic for the participant living with colorectal cancer to detect any evidence of cancer recurrence. Couples in the Usual Care arm will not receive advice on physical activity.
At baseline, 3 months and 6 months, outcome data will be collected from couples in the intervention and control arms of the trial.
Primary outcome measures
Feasibility will be measured by calculating the following rates:
1. Recruitment rate (number of participants randomised/number of eligible participants)
2. Completion rate (number of participants completing baseline and 6 month intervention assessments/number of participants randomised)
3. Adherence rate (number of physical activity consultations and telephone calls conducted/number of physical activity consultations and telephone calls scheduled)
Secondary outcome measures
1. Change in physical activity will be measured from baseline to 3 and 6 months follow-up in individuals living with colorectal cancer and their partner. Physical activity will be assessed for 7 consecutive days at each time-point using the Actigraph GT1M-Plus accelerometer (Actigraph LLC, Pensacola, Florida). Monitors will be attached to adjustable elastic belts and worn over the right hip under clothing during all waking hours. The raw accelerometry output (accelerometer count per minute [cpm], averaged over the monitoring period) will be used as a measure of total physical activity and will also be used to quantify the amount of monitored time spent in sedentary behaviour and moderate and vigorous physical activity using validated cut off points. Physical activity will also be assessed subjectively using the long (self-report) version of the International Physical Activity Questionnaire (IPAQ) to ascertain the types of activities participants engaged in as this information is not provided by the accelerometers. This questionnaire measures time spent in moderate and vigorous activity across four domains (work, transport, housework/gardening and leisure time) and time spent sitting in the previous 7 days.
2. Mental well-being will be measured at baseline, 3 and 6 months using the Hospital Anxiety and Depression (HADS) Scale (0 = Not at all, 4 = Most of the time). This is a brief, self-report questionnaire used to measure state anxiety and depression over the past week.
3. Quality of life in people living with colorectal cancer will be measured at baseline, 3 and 6 months using the Functional Assessment of Cancer Therapy C General (FACT-G) questionnaire. The latest version 4 is formulated into separate subscales: physical, emotional, social/family and functional well-being. The Functional Assessment of Cancer Therapy C Colorectal (FACT-C), which includes additional concerns for colorectal cancer patients, will also be used. Both scales questions are scored 0 = Not at all to 4 = Very much. Quality of life in partners will be measured by the WHOQOL-Bref instrument. The short form WHOQOL-Bref contains 26 items that have been extracted from the WHOQOL-100. It measures the following broad domains: physical health, psychological health, social relationships, and environment.
4. Body composition (i.e. fat and lean mass) will be measured at baseline, 3 and 6 months using a portable foot-to-foot bioelectrical impedance monitor (Tanita TBF-300 MA Body Composition Analyser, Harlow Printing Ltd, Tyne and Wear)
5. Predictors of change in physical activity: psychosocial constructs will be measured to test their predictive role for change in physical activity from baseline to 3 months and 6 months follow up in individuals living with colorectal cancer and their partners -
5.1. Perceptions of cancer risk in partners will be measured by a scale developed by Schwartz and colleague (Schwartz et al., 1995). The instrument has three items and uses a Likert scale ranging from 'much lower' to 'much higher' to generate a composite score.
5.2. Fear of cancer recurrence in individuals living with colorectal cancer will be measured using the Fear of Cancer Recurrence Inventory (Simard and Savard, 2009). The instrument has 42 items and uses a Likert scale to generate a composite score.
5.3. Key components of the revised theory of planner behaviour will be measured in individuals living with colorectal cancer and their partner using the following scales. Intention to exercise will be assessed on the mean of 2 items each measured on 7 point scales. Attitude will be assessed using the mean of 4 semantic differential scales, all scored -3 to +3 with higher scores indicating more positive attitudes towards exercising. Subjective norm will be assessed as the mean of 2 items, scored -3 to +3 with higher scores indicating stronger norms to exercise. Perceived behavourial control will be assessed as the mean of 3 items (scored 1 to 7), with higher scores indicating more control over exercising; past behaviour is well recognised as a strong predictor of future behaviour. This will be assessed as the mean of 2 items (scored 1 to 7), with higher scores indicating greater previous exercise; anticipated regret will be assessed by 2 items tapping inactivity regret that is anticipated regret about not exercising in the future, scored -3 to +3. The contributions of these predictor variables of attitude, subjective norm, perceived behavioural control etc in explaining the observed variance in, a) intention to exercise, and b) actual exercise behaviour 12 weeks and 6 months later will then be measured.
5.4. The quality of the relationship between the individual living with cancer and their partner will be measured to test if it affects adherence to the physical activity intervention or moderates any of the intervention effects. The validated relationship quality measures from the English Longitudinal Study of Ageing (Marmot et al., 2003) will be used, which assesses social support and is concerned with the quality of the respondent's social relationship with individual living with colorectal cancer or partner respectively. Specifically, respondents are asked about the presence of positive support from their partner (how much they understand the way the respondent feels about things, how much they can be relied on if the respondent has a serious problem and how much the respondent can open up to them to talk about worries); and about negative relations with each other (how much others criticise the respondent, how much they let the respondent down and how much they get on the respondent's nerves). Positive and negative support items are scored as 1 = not at all and 4 = a lot, such that higher numbers indicate more of each type of support. Three questions on the receipt of social support for physical activity in the previous week will also be included to assess whether the intervention changes received social support.
Overall trial start date
Overall trial end date
Participant inclusion criteria
Individual living with colorectal cancer:
1. Initial diagnosis Dukes stage A-C2 colorectal cancer with no current evidence of metastatic disease
2. Aged 18 years or older, either sex
3. Have completed surgery in the last 24 months
4. Not currently undergoing surgery or adjuvant chemotherapy and/or radiation therapy for cancer
5. Has a partner
6. Not currently meeting national physical activity guidelines (of 30 minutes moderate-intensity activity five times per week)
7. Able to communicate in English
1. Partner of individual living with colorectal cancer included in the study
2. Aged 18 years or older
3. Not currently undergoing surgery or adjuvant chemotherapy and/or radiation therapy for cancer
4. Able to communicate in English
Target number of participants
30 couples (60 participants in total)
Participant exclusion criteria
Individual living with colorectal cancer:
1. Initial diagnosis Dukes stage D
2. Evidence of metastatic disease
3. Suffers from unstable cardiac or respiratory disease (due to inappropriateness of physical activity intervention)
4. Partner is unwilling to participate in study
5. Currently undergoing surgery or adjuvant chemotherapy and/or radiation therapy for cancer
6. Currently achieving national physical activity guidelines
7. Unable to communicate in English
1. Currently undergoing surgery or adjuvant chemotherapy and/or radiation therapy for cancer
2. Suffers from unstable cardiac or respiratory disease (due to inappropriateness of physical activity intervention)
3. Unable to communicate in English
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Cancer Care Research Centre
University of Stirling (UK)
Funding Body Type
private sector organisation
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Results - basic reporting