Perceived benefits and barriers to exercise for recently treated patients with multiple myeloma: a qualitative study
- Melinda J Craike†1Email author,
- Kaye Hose†2,
- Kerry S Courneya†3,
- Simon J Harrison†4, 5 and
- Patricia M Livingston†1
© Craike et al.; licensee BioMed Central Ltd. 2013
Received: 27 November 2012
Accepted: 24 June 2013
Published: 1 July 2013
Understanding the physical activity experiences of patients with multiple myeloma (MM) is essential to inform the development of evidence-based interventions and to quantify the benefits of physical activity. The aim of this study was to gain an in-depth understanding of the physical activity experiences and perceived benefits and barriers to physical activity for patients with MM.
This was a qualitative study that used a grounded theory approach. Semi-structured interviews were conducted in Victoria, Australia by telephone from December 2011-February 2012 with patients who had been treated for MM within the preceding 2–12 months. Interviews were transcribed and analysed using the constant comparison coding method to reduce the data to themes. Gender differences and differences between treatment groups were explored.
Twenty-four interviews were completed. The sample comprised 13 females (54%), with a mean age of 62 years (SD = 8.8). Sixteen (67%) participants had received an autologous stem cell transplant (ASCT). All participants currently engaged in a range of light to moderate intensity physical activity; walking and gardening were the most common activities. Recovery from the symptoms of MM and side effects of therapy, psychological benefits, social factors and enjoyment were important benefits of physical activity. Barriers to physical activity predominately related to the symptoms of MM and side effects of therapy, including pain, fatigue, and fear of infection. Low self- motivation was also a barrier. Women participated in a more diverse range of physical activities than men and there were gender differences in preferred type of physical activity. Women were more likely to report psychological and social benefits; whereas men reported physical activity as a way to keep busy and self-motivation was a barrier. Patients treated with an ASCT more often reported affective benefits of participation in physical activity and fatigue as a barrier. Patients treated with other therapies (e.g., chemotherapy, radiotherapy) were more likely to report pain as a barrier.
Patients with MM experience debilitating effects of their condition and therapy, which influences their level and intensity of physical activity participation. Physical activity programs should be individualised; take into consideration gender differences and the impact of different types of therapy on physical activity; and focus on meeting the psychological, coping and recovery needs of patients.
KeywordsCancer Oncology Multiple Myeloma Physical Activity Exercise
Multiple myeloma (MM) is an incurable malignancy of plasma cells. In 2010 in Australia, it was estimated that 1,400 people were diagnosed with MM, representing 1.2% of all cancer diagnoses. MM is more common in men than women; the average age at diagnosis is 70 years . Although there is currently no cure for MM, modern therapy can control the disease for prolonged periods and the 5-year survival rates for MM have increased from 26% to 42% from 1985–1989 to 2005–2009 in Victoria, Australia .
The preferred therapy for patients with MM depends on their age, functional status and comorbidities. In Australia, guidelines recommend that autologous stem cell transplantation (ASCT) should be the standard of care in patients up to 65–70 years following induction therapy. This therapy comprises an induction regimen incorporating novel agents (thalidomide, bortezomibor or lenalidomide) designed to preserve the capacity to harvest haematopoietic stem cells. Patients older than 65 years with poor performance status, or younger patients with comorbidities are not eligible for ASCT due to increasing toxicity, regimens usually combine melphalan and steroids with novel agents. Supportive therapy may include the use of bisphosphonates and erythropoietin as per updated guidelines .
The treatment regimens for MM are complex and demanding . The impact of the underlying disease and the side effects of treatment include chronic pain, fatigue, nausea and vomiting, recurrent infections and anaemia [4, 5]. Patients also frequently suffer from osteoporosis and osteolytic bone lesions, putting them at increased risk of pathological fracture [6, 7]. These outcomes reduce the quality of life of patients and are often associated with increased incidence of depression, anxiety and distress [4, 5, 8].
Physical activity has been shown, through randomised controlled trials, to improve physical and psychological outcomes among patients with solid tumours [9–11]. This has led to interest in how participation in physical activity may be facilitated for cancer survivors [12–14]. Physical activity behaviors, and the factors that influence these behaviors, vary by cancer diagnosis [15–17], patient demographics [6, 7, 15], and stage in the cancer journey [15, 16]. Thus it is important to examine the barriers to physical activity and benefits of participation in physical activity for specific cancer groups, such as MM, and at a defined stage in the illness trajectory.
Examination of the specific benefits of physical activity for people with MM is a relatively new area of research, but one that is gaining increasing attention as the prevalence of MM increases and lifestyle behaviors, such as physical activity, are recognised as important factors in overall patient outcomes [18–20]. Research to date, albeit limited, has shown that physical activity is safe and feasible before, during and following treatment for MM; can alleviate some of the side effects of treatment, including fatigue; and can enhance the quality of life of patients [18, 21, 22]. Despite these promising findings, the pathophysiology of MM and associated therapies may make physical activity uptake and adherence a challenge for this group. Participation in physical activity is lower for people with MM than other cancer types [18, 23]. In addition, Coleman et al. reported a high exercise attrition rate of 42% in MM patients who participated in a randomised trial .
One way of increasing our understanding of physical activity in the lives of people with MM is to examine participation experiences and the perceived benefits of and barriers to participation. This information is essential to inform the development of evidence-based interventions to encourage physical activity uptake and adherence and to quantify the benefits of physical activity for this group. The aim of this study was to gain new insights in to the physical activity experiences, perceived benefits, and barriers to participation for patients who were treated for MM within the preceding 2–12 months. Due to limited research in this area and the exploratory nature of this study, a qualitative approach that examined physical activity experiences within the context of the patient’s broader life and from the patient’s perspective, was selected.
This study was approved by the Human Research Ethics Committee at Deakin University.
Male and female patients who completed treatment for MM were interviewed for this study. Inclusion criteria were people living in Victoria Australia, aged 18 years and over; a diagnosis of symptomatic MM who had completed therapy (chemotherapy, radiotherapy, induction therapy and/or transplant) 2-12 months prior; and with the ability to speak English and complete English-language versions of the patient-completed measures.
A purposive sampling technique was used to select patients who were living in Victoria, Australia. The patient database maintained by the Leukaemia Foundation of Australia was used to identify potential participants. The database was screened for patient names, cancer diagnosis, age and address details as well as approximate date(s) of treatment for MM. Potential participants were sent a cover letter and Participant Information and Consent Form, which provided an overview of the study, eligibility criteria, and an explanation of what participation in the study would involve. If patients deemed themselves eligible and wished to participate, they were asked to complete the consent form and return it. Once received, the interviewer rang the patient to confirm that they met the eligibility criteria and an interview time was arranged.
A self-administered questionnaire was mailed to participants prior to the telephone interview. Participants were asked to complete the questionnaire before completing the interview and could use it as a reference point during the interview. On completion of the interview, participants were asked to return the questionnaire using a reply paid envelope.
Telephone interviews were conducted from December 2011-February 2012. The interviews were conducted by a nurse counsellor with knowledge of MM and extensive experience in conducting interviews with cancer patients. Interviews were conducted by telephone and were recorded (with the permission of participants). Interviews continued until saturation was reached. A summary of the research findings was sent to the participants once the study was completed.
The questionnaire completed prior to the interview measured patient and clinical characteristics, including date of birth, highest level of education, postcode, living arrangements, treatment type and length of time since treatment. Current and pre diagnosis physical activity was measured using an adapted version of the Leisure Time Exercise Questionnaire developed by Godin et al. [24, 25]. Participants recorded their average weekly physical activity prior to diagnosis (pre diagnosis physical activity) and their average weekly physical activity in the past month (current physical activity). The Leisure Time Exercise Questionnaire assesses average frequency and duration of light (e.g., easy walking), moderate (e.g., brisk walking) and strenuous (e.g., running) physical activity. It has been used in studies of cancer survivors [26, 27] and patients with MM .
A grounded theory approach was taken in this study . Interviews were semi-structured and follow up questions and probes facilitated a deeper understanding of the participants’ perceptions and experiences of physical activity. The interview prompts focused on participation in physical activity before, during and after treatment and any perceived barriers and benefits of participation. The interview was guided by a series of pre-determined prompts, with flexibility in the order in which they were covered to allow the interview to flow. Prompts included: “Can you describe your participation in exercise before during and after treatment?”; “What things stop or limit your participation in exercise?”; and “What things motivate you to exercise?”
One interviewer conducted all of the interviews. Author one briefed the interviewer about the aims and purpose of the interviews and listened to and gave feedback on interviewing style. Regular meetings were held between author one and the interviewer to discuss important themes, the point at which saturation was reached and any logistical issues.
Descriptive statistics were used to analyse the questionnaire data, including the demographic and clinical characteristics and participation in physical activity.
In terms of qualitative data, the interviews were transcribed verbatim and the accuracy of the transcripts was verified, with 80% checked by the researchers against the interview recordings. Data from the interviews were analysed using the nVivo software package. Pseudonyms were assigned to participants so that they could not be identified.
The analysis process was inductive and coding was used to reduce the data into meaningful themes . The coding procedures applied the “constant comparison” method . The constant comparison method utilises three stages of coding. For the initial stage, a relevant code was applied to ideas in the transcripts to develop categories which captured the meaning of the idea . Under the supervision of authors one and five, a research assistant coded the data. As a way of validating the codes, three interviews were independently coded by author one to check the interpretations of the coder and validate the themes. There was agreement between both researchers as to the dominant themes and their interpretation of the meaning from the ideas represented in the interviews.
The second stage of coding involved reducing codes through grouping similar codes into broader, more encompassing themes and comparing them to one another and cross checking back to the original interview text. In the final stage, categories were delimited to gain parsimony and focus on the aims of the study . At this stage, comparisons were made based on gender and type of therapy (ASCT or other therapies, including chemotherapy, radiotherapy). Examination of different therapy groups was important as treatment with or without ASCT may influence the functional status of the patient, which may have an impact on their physical activity. During the coding processes, the authors and interviewer met to discuss the themes that were emerging from the interviews.
In the Results section, the gender, age and main treatment type of participants are included in parentheses following direct quotes. Only the main treatment type has been included here; participants may also have been treated with a range of induction and supportive therapies including thalidomide and steroids (e.g., prednisolone and zometa).
Sample and clinical characteristics
Sample and clinical characteristics
(N = 24)
Partner/spouse and children
Highest Level of Education
University degree or higher
Certificate or diploma
Autologous Stem Cell Transplant
Other (e.g., steroids, Thalidomide/Revlimid)
Time Since Treatment Completion
2-4 months ago
5-7 months ago
Over 12 months
Ongoing (e.g., thalidomide)
The majority of participants lived with either a partner/spouse 16 (67%); or a partner/spouse and children (own or partners) (n = 6; 25%). In terms of highest level of education, 10 (42%) had a University degree or higher and 8 (33%) had a certificate or diploma. There were more participants from regional/rural areas (n = 13, 54%) than metropolitan areas (n = 11, 46%).
Two-thirds of participants had been treated with a stem cell transplant (n = 16; 67%) and most participants had completed treatment 5–7 months ago (n = 9; 37.5%), followed by 2–4 months ago (n = 4; 17%) or 11-12 months (n = 4; 17%).
Current participation in physical activity and change from Pre-diagnosis
Current type and intensity of physical activity
None of the participants had participated in vigorous intensity physical activity on an average week in the past month; 56.2% participated in some moderate intensity physical activity (M = 84 minutes per week, SD = 104.9); and 69.6% participated in some light intensity physical activity (M = 85 minutes per week, SD = 85.9). Overall 26% of participants were meeting the recommended guidelines of 150 minutes of moderate-vigorous intensity physical activity per week.
Walking, followed by gardening were the most common physical activities. A range of other activities were also discussed, including bike riding, yoga, swimming, stretching, tennis, pilates, tai chi, table tennis and strength training. Most of these activities were of light to moderate intensity. Participants also spoke about trying to increase their level of physical activity after their therapy. For some, this meant increasing the length of time they walked each day. Participants also spoke about their level of physical activity varying depending on how they were feeling, which was a function of their health and motivation as well as external factors like the weather.
…Yeah, well I try to walk every day. I’ve never been really a sporty person but I’ve always enjoyed walking prior to my myeloma and all of that. I enjoy gardening a lot. So as I say, I try to walk, I won’t say every day but probably five out of seven days a week and I’ll definitely go off for about 30 to 60 minutes, depends on the day and the weather and how I’m feeling, what sort of energy I’m at, that sort of level. (‘Francisa’, Female, 54 years, treated with a stem cell transplant)
Change from physical activity prior to diagnosis
Most participants in the interviews reported that the intensity and/or frequency of physical activity had reduced since their diagnosis. This was consistent with the questionnaire data which showed that participation in moderate and vigorous physical activity had reduced. Prior to diagnosis, 21.7% participated in vigorous physical activity and the mean number of minutes per week was 32.6 minutes (compared to 0 minutes now); 60.9% had participated in moderate physical activity and the mean number of minutes per week was 103.6 minutes (compared to 56.2% and 84 minutes per week now). The percent of participants who were currently participating in light intensity physical activity was similar to prior to diagnosis (69.6% compared to 65.2%) and average minutes were similar at 71.1 minutes (prior to diagnosis) and 85 minutes per week now. Note that the pre-diagnosis moderate and light intensity physical activity minutes per week were not included for one participant whose response was invalid.
Some participants were not able to do any sort of physical activity; while others continued with lighter intensity or less frequent physical activity compared to before their diagnosis, as illustrated in the following quote.
Yeah, look, I wouldn't be doing as intense exercise as I was previously. I physically probably can't do it to the same level that I had. So in terms of quantity it's probably dropped off slightly but there hasn't been a large difference there. It's probably more just the intensity at which I do it. (‘Michael’, Male, 48 years, treated with a stem cell transplant)
There were some participants who were back to or close to their pre diagnosis level of physical activity and two actually participated in more physical activity now.
Both men and women participated in walking, however there were gender differences in other types of physical activity. Women participated in a wider range of activities than men and were more likely to report participating in aquatics, gym work, pilates, yoga and Tai Chi. Men were more likely to report participation in golf, gardening, bike riding and bowls.
Perceived benefits of physical activity
Almost all respondents reported that physical activity was beneficial to them. These benefits were reported as predominantly related to their recovery from treatment and coping with symptoms of MM as well as psychological benefits. Other benefits included physical improvements such as appearance, weight loss, enjoyment and social interaction.
Recovery from treatment/disease
Recovery was defined by participants in terms of physical and psychological recovery and also getting back in to a normal routine that they enjoyed prior to their diagnosis. Physical recovery was focused on the prevention of deterioration in physical health and function. There was a sense that physical activity facilitated participants to regain a routine and normality after what, for many, was a traumatic diagnosis and treatment regimen.
I think it gives you a more positive outlook if anything. You can get back to normality and you can do things you know…..(‘Sophie’, Female, 57 years, treated with a stem cell transplant)
Not all participants, however, saw the benefits of exercise in their recovery because the symptoms that they experienced were so extreme and constant that nothing seemed to relieve them:
Well I'd like to think that it was helping. But it doesn't seem to be - I just don’t seem to be able to do anything that is helping it [pain in lower body]. …… It's consistently there all the time, lesser or more, depending on the time of day. The more I seem to walk, the worse it gets. (‘Frank’, Male, 64, treated with a stem cell transplant)
Many participants spoke about the psychological benefits of physical activity. This was more prevalent than the discussion of physical health benefits. There were several dimensions to the perceived psychological health benefits, these included (1) cognitive improvements of being more alert, keeping the mind healthy and fresh, and improvements in concentration; and (2) affective changes including feeling good, a sense of accomplishment, helping emotionally, helping to cope with MM.
In terms of cognitive improvement:
Well I suppose it just keeps you going. Certainly my job is very sedentary and I know that if I don't start the day with some exercise it's harder to concentrate and things like that…(‘Anne’, Female, 58 years, treated with a stem cell transplant)
Affective changes that were bought on through physical activity, including feeling better and keeping the mind from worrying are demonstrated through this quote:
Oh. Put it this way, I was quite depressed when I was in the house after the stem cells transplant and, of course, after the two VAD chemo. I find myself if I go out and did a bit of walking, I feel a little bit better, so I go from there. (‘Jane’, Female, 60 years, treated with a stem cell transplant)
Although the psychological benefits were noted among both men and women, there were some differences. Men reported being motivated to ‘do something’ and keep busy, whereas women more often reported the psychological benefits of physical activity and feeling better. Affective changes, particularly ‘feeling good’ were more often reported by those who had an ASCT compared to other those who had other types of therapy.
Most of the participants said they enjoyed being physically active; this was often intertwined with the psychological benefits of participation and ‘feeling better’ and also the sense of accomplishment that comes with being physically active:
Oh I enjoy it actually - particularly a long walk - as I said before 300 odd kilometres - when you finish a walk like that you feel very - as if you've accomplished something really good. (‘Andrew’, Male, 78 years, treated with Thalidomide)
Social factors were another motivation for physical activity. Although some participants enjoyed being physically active and having time to themselves, others saw it as an opportunity to be involved with family and friends. Physical activity was also seen as a way of connecting with other people, avoiding isolation, getting back in to life after MM and making new friendships. This could be with people with MM or other friends. Both men and women enjoyed the social aspects of participation; however this was discussed more by women than men.
I'm always better to have done exercise in a group, basketball, netball, all of that. The oncology rehab, going there twice a week and the girls right now we'll go for a walk, now we'll do this, now we'll do that. I need someone to push me a little. (‘Tina’, Female, 65 years, treated with a stem cell transplant)
Perceived barriers to physical activity
MM symptoms and side effects of treatment
The most prevalent barriers to physical activity were symptoms of MM and side effects of treatment. Barriers either limited physical activity or stopped it completely. These included fatigue (low energy levels, little stamina and tiredness); pain (particularly bone pain); concerned about bone fractures/bones; low immune system and subsequent fear of infections in public exercise locations, particularly gyms; taking medications in a timely manner; self-conscious about appearance after treatment (weight gain, loss of hair); anaemia; back pain; and foot weakness.
Fatigue, both physical and mental, was the most prominent barrier. Participants also experienced effects on concentration and keeping their mind focused on tasks, and sometimes felt ‘unsure about what you are doing’. One participant described this as having a ‘tired head’. Participants reported that fatigue was felt over their entire body and they experienced extreme tiredness.
… I get tired. I’m ready for bed at 8:30, nine o’clock every night, you know…as soon as the sun goes down I’m ready for bed and I’ll go and jump into bed… So I don’t know whether it’s the drugs or whether it’s the myeloma. The physicians told me it’s probably mainly the drugs that has done it. Hopefully the myeloma is under control at the moment. (‘Charles’, Male, 51 years, treated with chemotherapy)
Pain was also a barrier that limited or prohibited physical activity. This pain was mostly related to bone pain in various parts of the body, including the back, neck, elbows and hips. As pain levels were more debilitating on some days than others, it had the effect of either limiting or completely preventing any sort of physical activity. The intensity and ongoing nature of the pain was wearing on participants and made it difficult to continue on with their day to day life.
… I’ve got pains in the back and look, I’m all right at the moment, touch wood, but you know, pains in the back and hip, one of my elbows and they’re just sort of – I don’t know, it just grinds you down, I suppose, and makes you come to a stop or in my case anyway. (‘Charles’, Male, 51 years, treated with chemotherapy)
However, pain was not experienced as much by some participants, who felt that it was not a barrier for them:
I'm lucky. I don’t feel that much pain related to the myeloma, but if I'm really painful, well, I'll stop a day or two and see how it goes. If it doesn't go away, I know something's wrong, so I go to see my doctor. (‘Jane’, Female, 60 years, treated with a stem cell transplant)
Fatigue was more commonly reported by people who had been treated with an ASCT; however pain as a barrier to physical activity was more often reported by people who had been treated with other types of therapy such as chemotherapy and/or radiotherapy.
Low self motivation and lack of interest in physical activity
Low self motivation and interest in physical activity were barriers identified by participants. Low self motivation was identified by participants who may have had an interest in being involved in physical activity, however they experienced a general lack of motivation. This was intertwined with finding it difficult to ‘get going’, particularly in the morning. Males reported having low self motivation more often than females. Low interest in physical activity was more related to lack of interest in physical activity itself and therefore not participating.
…. two things that stop me probably doing a lot of exercise. One is I probably wouldn't be interested in it but the other one - I don’t have any problem with my heart, I'm sure I could do a bit of jogging or running, but it's no interest to me. (‘Dean’, Male, 65 years, treated with a stem cell transplant)
The purpose of this study was to explore the physical activity experiences of people with MM and perceived benefits and barriers to participation. Patients overwhelmingly reported that physical activity was beneficial; the most prominent benefits were in symptom control and recovery from the side affects of MM therapy and the psychological benefits of participation. The main barriers to physical activity related to the symptoms of MM and side effects of therapy and low self-motivation. There were some gender differences in type of physical activity that participants engaged in and benefits and barriers; and there were also some differences in benefits and barriers according to type of therapy.
Participation in physical activity decreased since prior to diagnosis, confirming the findings of previous research with MM patients [18, 23] and other cancer survivors [32, 33]. Physical activity was of light to moderate intensity, and walking was the most popular type of activity, followed by gardening. These findings are similar to population-based studies, which show that walking is the most popular physical activity among older adults . Walking was the most popular physical activity for both men and women, however there were some differences between men and women in physical activity participation. For example, women participated in aquatics, gym work and pilates, whereas men participated in golf, gardening and bike riding. These are consistent with gender differences in physical activity participation in the general population of adults and older adults [34, 35].
One-quarter of participants were meeting the recommended guidelines of 150 minutes of moderate-vigorous intensity physical activity per week; this was similar to previous studies of people with multiple myeloma [25, 36]. This compares with 30-45% of other cancer survivor groups who met the guidelines for sufficient levels of physical activity [6, 18, 30]. Our findings reinforce that MM may be more debilitating than some other types of cancer, which represents additional challenges to performing regular physical activity for people with MM.
None of the participants from this study engaged in vigorous physical activity. We found that participating in light to moderate intensity physical activity is likely to be the most feasible for patients with MM who experience a range of physical limitations that effect mobility, and who are also at increased risk of bone fractures and infections [6, 7]. These findings suggest that patients with MM may find it difficult to meet the American College of Sports Medicine guidelines for cancer survivors, which advise that cancer survivors avoid inactivity and follow the age-appropriate guidelines for aerobic activity; the accumulation of 150 minutes per week of moderate to vigorous intensity physical activity. However, in recognition of the specific needs of some cancer groups, the panel acknowledged that there should be some cancer site-specific alterations for patients and caution was advised for those at increased risk of fracture and infection .
In this study, the social context of the physical activity was important for people with MM and social interactions were important to the overall physical activity experience; this was particularly so for women. This finding supports the findings of previous research which demonstrates that having an exercise role model or partner is positively associated with physical activity participation for patients with MM , as well as other cancer groups, including prostate cancer survivors  and breast cancer survivors .
One of the main reported benefits of physical activity was helping to overcome the impact of MM treatment and symptoms. This might be a mechanism through which physical activity contributes to quality of life and psychological health, as previous research has demonstrated the association between symptom distress, quality of life and depression .
The psychological benefits of physical activity, including cognitive, affective and coping with cancer were frequently reported by interview participants in our study. These psychological benefits are particularly important for people with MM, as depression and low quality of life are frequently reported [4, 8]. Although no randomised controlled trials have been conducted with patients with MM, two recent meta analyses of studies of cancer survivors (primarily breast cancer) concluded that physical activity had a positive effect on psychological health [42, 43]. However, other studies have shown no association between physical activity and depression and anxiety for breast cancer survivors [10, 44] or colorectal cancer survivors .
There is evidence that the intensity of physical activity plays an important role in outcomes . The effect of level of intensity on quality of life and psychological health outcomes is complex and there is debate about the optimal intensity, particularly for psychological health . A cross-sectional study of patients with MM by Jones et al. showed that during off treatment periods, minutes of participation in moderate plus vigorous intensity physical activity, was associated with overall quality of life and all components of quality of life except physical wellbeing, as well as reductions in fatigue and depression . Further examination of the effect of physical activity at various intensity levels on psychological health and quality of life outcomes for patients with MM is warranted.
Symptoms of MM and side effects of treatment, particularly fatigue and pain, were the predominant barriers to physical activity. Evidence suggests that symptoms of fatigue, sleep disturbances, pain and loss of appetite were significantly worse for MM patients than those with lymphoma . Fatigue and pain have been identified as barriers to physical activity in other studies of cancer survivors [27, 49] and people with MM . Research has shown that higher levels of fatigue are associated with lower levels of physical activity for patients with MM . However, a small randomised controlled trial by Coleman et al. demonstrated that physical activity reduced fatigue for patients with MM . We found that the extent to which pain and fatigue were barriers to participation differed by treatment type, with pain experienced more by people who had been treated with therapies including chemotherapy and/or radiotherapy and fatigue experienced more by people who had a ASCT. These associations and their impact on physical activity experiences requires further investigation.
Lack of self-motivation was also a barrier in our study, particularly for men and for those who were treated with chemotherapy and/or radiotherapy. Lack of self-motivation has also been identified in other studies of cancer survivors .
The strengths of this study were the inclusion of people with MM who were recently treated, which facilitated recall of physical activity prior to diagnosis and the experience of treatment. The selection of participants from a population-based database increased the possibility of gaining perspectives from people from a range of backgrounds and localities.
Limitations of the study also need to be considered when interpreting the findings. This study was cross sectional and comprised a small sample size, involving younger patients (mean age = 62 years) than the population of MM patients (mean age at diagnosis of 70 years ) and findings can therefore not be generalized to the population. Participants were at least somewhat physically active; with voluntary participation, this self-selection bias is difficult to avoid. Participants had difficulty recalling their treatment regimen and we are not able to verify the accuracy of patient treatment status. The measure of pre-treatment level of physical activity was retrospective, which increases the possibility of recall error . However, the main focus of this study was on the participants’ description and lived experience of physical activity. Given these limitations, the findings of our study should be further examined through a population-based quantitative study examining the determinants of physical activity and potential outcomes such as improved quality of life (particularly levels of fatigue and pain), anxiety and depression.
Patients with MM predominantly participate in light to moderate intensity physical activity; this may be at least partly attributed to the side effects of their condition and treatment. Physical activity programs should focus on meeting the psychological and recovery needs of patients, while being conscious of the limitations that are faced by people with MM. An individualised program design that considers gender and treatment related differences is warranted. The involvement of specialists who understand MM is important so that side effects and cancer symptoms are taken in to account in the design of physical activity programs.
aParticipant pseudonyms have been used.
We would like to acknowledge the contribution of Ms. Josephine Mascaro for assisting with data entry and data analysis and Ms. Suzi Grogan for conducting the interviews with patients. We also acknowledge the contribution of the study’s steering committee members, including Ms. Haley King, Professor Mari Botti, Ms. Trish Joyce, Dr. Amanda Hordern, Dr. Caderyn Gaskin and Ms. Sandra Wilson.
This project was funded by a Centre for Quality and Patient Safety Research Seeding Grant (No 2011-07-002).
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