Interventions for promoting habitual exercise in people living with and beyond cancer

The effect of lifestyle interventions on the quality of life of gynaecological cancer survivors: A systematic review and meta-analysis

OBJECTIVE

We aimed to evaluate the effectiveness of lifestyle interventions in improving the quality of life (QoL) of endometrial and ovarian cancer survivors.

METHODS

The review was performed according to Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines, and the Cochrane Handbook for Systematic Reviews of Interventions. We performed a search of MEDLINE (1946-2015), EMBASE (1980-2015), CINAHL (1981-2015), PsycINFO (1806-2015) and the Cochrane Trial Register to identify studies evaluating the effect of lifestyle interventions on the QoL of endometrial and ovarian cancer survivors.

RESULTS

Eight studies fulfilled the inclusion criteria and comprised a total of 413 patients. Three studies were randomised controlled trials (RCTs), which showed that lifestyle interventions may improve physical functioning and significantly reduce fatigue in endometrial cancer survivors. In addition, lifestyle interventions in endometrial cancer survivors resulted in significant weight loss and improved physical activity levels, but did not show improvements in global QoL in the meta-analysis (P=0.75, P=0.49). Non-randomised trials in ovarian cancer survivors support the feasibility of lifestyle interventions and suggest they may result in QoL improvements.

CONCLUSIONS

Lifestyle interventions have the potential to improve the QoL of endometrial cancer and ovarian cancer survivors, and may significantly reduce fatigue. However, the current evidence is limited and there is a need for future studies to further evaluate lifestyle interventions and their effect on QoL outcomes.

Physical Exercise Training versus Relaxation in Allogeneic stem cell transplantation (PETRA Study) - Rationale and design of a randomized trial to evaluate a yearlong exercise intervention on overall survival and side-effects after allogeneic stem cell transplantation

Background

Allogeneic stem cell transplantation (allo-HCT) is associated with high treatment-related mortality and innumerable physical and psychosocial complications and side-effects, such as high fatigue levels, loss of physical performance, infections, graft-versus-host disease (GvHD) and distress. This leads to a reduced quality of life, not only during and after transplantation, but also in the long term. Exercise interventions have been shown to be beneficial in allo-HCT patients. However, to date, no study has focused on long-term effects and survival. Previous exercise studies used ‘usual care’ control groups, leaving it unclear to what extent the observed effects are based on the physical effects of exercise itself, or rather on psychosocial factors such as personal attention. Furthermore, effects of exercise on and severity of GvHD have not been examined so far. We therefore aim to investigate the effects and biological mechanisms of exercise on side-effects, complications and survival in allo-HCT patients during and after transplantation.

Methods/design

The PETRA study is a randomized, controlled intervention trial investigating the effects of a yearlong partly supervised mixed exercise intervention (endurance and resistance exercises, 3–5 times per week) in 256 patients during and after allogeneic stem cell transplantation. Patients in the control group perform progressive muscle relaxation training (Jacobsen method) with the same frequency. Main inclusion criterion is planned allo-HCT. Main exclusion criteria are increased fracture risk, no walking capability or severe cardiorespiratory problems. Primary endpoint is overall survival after two years; secondary endpoints are non-relapse mortality, median survival, patient reported outcomes including cancer related fatigue and quality of life, physical performance, body composition, haematological/immunological reconstitution, inflammatory parameters, severity of complications and side-effects (e.g. GvHD and infections), and cognitive capacity.

Discussion

The PETRA study will contribute to a better understanding of the physiological and psychological effects of exercise training and their biological mechanisms in cancer patients after allo-HCT. The ultimate goal is the implementation of optimized intervention programs to reduce side-effects and improve quality of life and potentially prognosis after allogeneic stem cell transplantation.

Trial registration

ClinicalTrials.gov Identifier: NCT01374399.

Effect of specific educational program on dietary change and weight loss in breast-cancer survivors

AIMS

Consumption of Western foods with high dietary glycemic load is associated with breast cancer development, whereas adherence to Mediterranean diet has been linked to a reduced risk. Changing lifestyle can decrease risk of recurrences and mortality. Thus decreasing the weight, improving the diet and promoting lifestyle are among of the most important issues of public health. We evaluated the effects of a specific educational intervention conducted by dietitians, nutritionists physicians, oncologist and sport physician to promote lifestyle in breast cancer survivors.

METHODS

We recruited 100 pts in breast cancer follow up. The intervention program consisted of four meetings once a week including lectures, training sessions and workshops lasting overall a month. Dietary recommendations were provided on the basis of WCRF/AICR guidelines and were modelled on Mediterranean diet. Sport physician recommended adapted physical activity, based on clinical experiences and scientific evidences.

RESULTS

Significantly decrease of BMI and waist circumference was observed after 2 and 6 months. Adherence to Mediterranean diet was significantly improved, both in heightening typical Mediterranean foods, both in decreasing consumption of non typical foods. At baseline 63% of women was inactive, 37% was mild active and 0% active, while at the end inactive patients felt by half (30%) and mild active women almost doubled (67%).

CONCLUSIONS

We found this dietary intervention effective in reducing BMI and waist circumference, and enhancing healthy lifestyle in BC survivors. It has surely contributed to achieve these results besides the change in diet quality, mostly a marked reduction in sedentary habits.

Effectiveness, Mediators, and Effect Predictors of Internet Interventions for Chronic Cancer-Related Fatigue: The Design and an Analysis Plan of a 3-Armed Randomized Controlled Trial

Background

Internet interventions offer advantages that especially cancer survivors who suffer from fatigue could benefit from. Given the growing number of such patients, Internet interventions could supplement and strengthen currently available health care.

Objective

This paper describes the design and analysis plan that will be used to study 2 Internet interventions aimed at reducing severe fatigue in cancer survivors: a mobile ambulant activity feedback therapy supported through a weekly email by a physiotherapist and a weekly Web- and mindfulness-based cognitive therapy supported online by a psychologist. The data resulting from this trial will be used to (1) investigate the effectiveness, (2) investigate potential mediators of these interventions, and (3) explore participant characteristics that can predict the effect of these interventions.

Methods

A 3-armed randomized controlled trial is proposed that compares both Internet interventions with an active control condition that solely consists of receiving psycho-educational emails. The intervention period is 9 weeks for all 3 conditions. Six months after baseline, participants in the control condition can choose to follow 1 of the 2 experimental Internet interventions. Outcomes are measured in terms of fatigue severity, mental health, and self-perceived work ability. All are Web-assessed at baseline, 2 weeks after the intervention period, and at 6 and 12 months after baseline. Fatigue severity, mindfulness, physical activity, expectations and credibility of the intervention, therapeutic working alliance, sleep quality, and sense of control over fatigue are assessed 3 times during the intervention period for identifying mediators of the interventions. Recruitment is performed nationally throughout the Netherlands through patient organizations and their websites, newspapers, and by informing various types of health professionals. All participants register at an open-access website. We aim at including 330 cancer survivors who have finished curative-intent cancer treatment at least 3 months previously, and have been suffering from severe fatigue ever since. All cancer types are included. A detailed analysis plan is described to address the research questions, which allows for individual variation, and fully exploits the longitudinal design.

Results

Recruitment started in April 2013 and will proceed until April 2015.

Conclusions

This paper describes a systematic trial design for studying 2 different interventions for chronic cancer-related fatigue in order to gain insight into the effectiveness and mediators of the interventions. This design will also be used to identify predictors for the interventions’ effect on fatigue. By publishing our hypotheses and analysis plan before completion of data collection, this paper is a first step in reporting on this trial comprehensively.

Trial Registration

The Netherlands National Trial Register (NTR3483). (Archived by WebCite at http://www.webcitation.org/6NWZqon3o).

Top 10 research questions related to physical activity and cancer survivorship

In the United States, there are more than 14 million cancer survivors. Many of these survivors have been treated with multimodal therapy including surgery, radiation therapy, chemotherapy, and targeted therapies. These therapies improve survival; however, they also cause acute and chronic side effects that can undermine health and quality of life. Physical activity (PA) and cancer survivorship is a rapidly growing field of inquiry that studies the role of PA in people diagnosed with cancer. In this article, we propose the following top 10 research questions for the field of PA and cancer survivorship: (1) Does PA reduce the risk for cancer recurrence and/or improve survival? (2) Does PA influence cancer treatment decisions, completion rates, and/or response? (3) What is the optimal PA prescription for cancer survivors? (4) What is the role of sedentary behavior in cancer survivorship? (5) What are the most effective PA behavior change interventions for cancer survivors? (6) Which cancer variables modify the PA response? (7) What are the safety issues concerning PA in cancer survivors? (8) Which specific cancer symptoms can be managed by PA? (9) Is there a role for PA in advanced cancer? And (10) How do we translate PA research into clinical and community oncology practice? The answers to these questions are critical not only for advancing the field of PA and cancer survivorship, but for improving the lives of the millions of cancer survivors every year who are diagnosed with cancer, going through treatments, recovering after treatments, or coping with advanced disease.

Survivorship: healthy lifestyles, version 2.2014

Healthy lifestyle habits have been associated with improved health outcomes and quality of life and, for some cancers, a reduced risk of recurrence and death. The NCCN Guidelines for Survivorship therefore recommend that cancer survivors be encouraged to achieve and maintain a healthy lifestyle, with attention to weight management, physical activity, and dietary habits. This section of the NCCN Guidelines focuses on recommendations regarding physical activity in survivors, including assessment for the risk of exercise-induced adverse events, exercise prescriptions, guidance for resistance training, and considerations for specific populations (eg, survivors with lymphedema, ostomies, peripheral neuropathy). In addition, strategies to encourage health behavioral change in survivors are discussed.

Effects of a clinician referral and exercise program for men who have completed active treatment for prostate cancer: A multicenter cluster randomized controlled trial (ENGAGE)

BACKGROUND

The purpose of this study was to determine the efficacy of a clinician referral and exercise program in improving exercise levels and quality of life for men with prostate cancer.

METHODS

This was a multicenter cluster randomized controlled trial in Melbourne, Australia comprising 15 clinicians: 8 clinicians were randomized to refer eligible participants (n = 54) to a 12-week exercise program comprising 2 supervised gym sessions and 1 home-based session per week, and 7 clinicians were randomized to follow usual care (n = 93). The primary outcome was self-reported physical activity; the secondary outcomes were quality of life, anxiety, and symptoms of depression.

RESULTS

A significant intervention effect was observed for vigorous-intensity exercise (effect size: Cohen's d, 0.46; 95% confidence interval [CI], 0.09-0.82; P = .010) but not for combined moderate and vigorous exercise levels (effect size: d, 0.08; 95% CI, −0.28 to 0.45; P = .48). Significant intervention effects were also observed for meeting exercise guidelines (≥150 min/wk; odds ratio, 3.9; 95% CI, 1.9-7.8; P = .002); positive intervention effects were observed in the intervention group for cognitive functioning (effect size: d, 0.34; 95% CI, −0.02 to 0.70; P = .06) and depression symptoms (effect size: d, −0.35; 95% CI, −0.71 to 0.02; P = .06). Eighty percent of participants reported that the clinician's referral influenced their decision to participate in the exercise program.

CONCLUSIONS

The clinician referral and 12-week exercise program significantly improved vigorous exercise levels and had a positive impact on mental health outcomes for men living with prostate cancer. Further research is needed to determine the sustainability of the exercise program and its generalizability to other cancer populations. Cancer 2015;121:2646–2654. © 2015 American Cancer Society.

Telephone, print, and Web-based interventions for physical activity, diet, and weight control among cancer survivors: a systematic review

PURPOSE

Broad-reach (non-face-to-face) modalities offer an accessible and cost-effective means to provide behavior change programs in diverse and growing cancer survivor populations. The purpose of this systematic review is to evaluate the efficacy of physical activity, dietary, and/or weight control interventions for cancer survivors in which telephone, short-message service, print, and/or Web is the primary method of delivery.

METHODS

A structured search of PubMed, Embase, Web of Science, CINAHL, and CENTRAL (May 2013) was conducted. Included studies focused and reported on physical activity (PA) and dietary change and/or weight control in adult cancer survivors, delivered at least 50% of intervention contacts by broad-reach modality and included a control group. Study design, intervention features, and behavioral/weight outcomes were extracted, tabulated, and summarized.

RESULTS

Twenty-seven studies were included; 22 telephone, three Web, and two print. Sixteen studies targeted PA, two diet, and nine targeted multiple behaviors. Most studies (18/27) targeted a single survivor group, namely breast cancer (n = 12). Nineteen of 27 studies found evidence for initiation of behavior change, with only eight reporting on maintenance and one on cost-effectiveness.

CONCLUSIONS

This review provides support for broad-reach modalities, particularly the telephone, in the delivery of lifestyle interventions to cancer survivors. Future research should evaluate (1) newer technologies (i.e., SMS and mobile phone applications), (2) interventions for diverse cancer survivors and those targeting multiple behaviors, (3) long-term outcomes, and 4) cost-effectiveness.

IMPLICATIONS FOR CANCER SURVIVORS

Broad-reach lifestyle interventions are effective, with further research needed to evaluate their generalizability and integration into cancer care.

Tai chi chuan exercise for patients with breast cancer: a systematic review and meta-analysis

Objective. Tai Chi Chuan (TCC) is a form of aerobic exercise that may be an effective therapy for improving psychosomatic capacity among breast cancer survivors. This meta-analysis analyzed the available randomized controlled trials (RCTs) on the effects of TCC in relieving treatment-related side effects and quality of life in women with breast cancer. Methods. RCTs were searched in PubMed, Embase, Web of Science, and Cochrane Library through April 2014. Data were analyzed on pathology (pain, interleukin-6, and insulin-like growth factor 1), physical capacity (handgrip, limb physical fitness, and BMI), and well-being (physical, social, emotional, and general quality of life). Results. Nine RCTs, including a total of 322 breast cancer patients, were examined. Compared with control therapies, the pooled results suggested that TCC showed significant effects in improving handgrip dynamometer strength, limb elbow flexion (elbow extension, abduction, and horizontal adduction). No significant differences were observed in pain, interleukin-6, insulin-like growth factor, BMI, physical well-being, social or emotional well-being, or general health-related quality of life. Conclusion. The short-term effects of TCC may have potential benefits in upper limb functional mobility in patients with breast cancer. Additional randomized controlled trials with longer follow-up are needed to provide more reliable evidence.

Differences between nurse practitioner and physician care providers on rates of secondary cancer screening and discussion of lifestyle changes among breast cancer survivors

PURPOSE

Breast cancer survivorship care is provided by surgical and medical oncologists, primary care physicians (PCPs), and nurse practitioner survivorship specialists (NPs). The study objective was to identify whether frequency of cancer screening and discussion of healthy lifestyles differed across these provider types. We also determined differences by provider in survivor reported follow through with lifestyle recommendations.

METHODS

Breast cancer survivors completed surveys regarding the type of health-care provider they most recently saw, cancer screening, discussion, and self-reported lifestyle change since their breast cancer diagnosis.

RESULTS

Seven hundred fifty-nine breast cancer survivors (78.7 % of those invited) completed the survey; 51.8 % indicated that their last visit was with a medical oncologist. There was no difference in rates of cancer screening (colon, cervical, and breast) among types of providers. A significantly larger proportion of patients who last saw an NP reported that they had discussed physical activity (78.6 %) as compared to medical oncologist 54.4 %, surgeon 43.1 %, radiation oncologist 64.1 %, and PCP 61.3 % (p < 0.001). Similar observations were observed for discussion of nutrition and weight (NP 70.0 %, medical oncologist 36.5 %, surgeon 25.7 %, radiation oncologist 48.7 %, PCP 35.5 %; p < 0.001). There was no significant difference across provider type in self-reported implementation of change in physical activity or diet.

CONCLUSIONS

Our data indicate that a visit to the NP was related to comparable screening rates, but despite that NPs are more often discussing lifestyle modification, self-reported change in nutrition and physical exercise did not differ across provider type.

IMPLICATIONS FOR CANCER SURVIVORS

NPs perform favorably with respect to lifestyle recommendations. Given the reported lack of lifestyle change, it is important to triage to providers who specialize in lifestyle modification and, if plausible, learn and provide actual evidence-based approaches to achieve positive outcomes in this area.

Beyond treatment - Psychosocial and behavioural issues in cancer survivorship research and practice

The population of cancer survivors has grown steadily over the past several decades. Surviving cancer, however, is not synonymous with a life free of problems related to the disease and its treatment. In this paper we provide a brief overview of selected physical and psychosocial health problems prevalent among cancer survivors, namely pain, fatigue, psychological distress and work participation. We also address issues surrounding self-management and e-Health interventions for cancer survivors, and programmes to encourage survivors to adopt healthier lifestyles. Finally, we discuss approaches to assessing health-related quality of life in cancer survivors, and the use of cancer registries in conducting psychosocial survivorship research. We highlight research and practice priorities in each of these areas. While the priorities vary per topic, common themes that emerged included: (1) Symptoms should not be viewed in isolation, but rather as part of a cluster of interrelated symptoms. This has implications for both understanding the aetiology of symptoms and for their treatment; (2) Psychosocial interventions need to be evidence-based, and where possible should be tailored to the needs of the individual cancer survivor. Relatively low cost interventions with self-management and e-Health elements may be appropriate for the majority of survivors, with resource intensive interventions being reserved for those most in need; (3) More effort should be devoted to disseminating and implementing interventions in practice, and to evaluating their cost-effectiveness; and (4) Greater attention should be paid to the needs of vulnerable and high-risk populations of survivors, including the socioeconomically disadvantaged and the elderly.

Interventions to improve exercise behaviour in sedentary people living with and beyond cancer: a systematic review

BACKGROUND

To systematically review the effects of interventions to improve exercise behaviour in sedentary people living with and beyond cancer.

METHODS

Only randomised controlled trials (RCTs) that compared an exercise intervention to a usual care comparison in sedentary people with a homogeneous primary cancer diagnosis, over the age of 18 years were eligible. The following electronic databases were searched: Cochrane Central Register of Controlled Trials MEDLINE; EMBASE; AMED; CINAHL; PsycINFO; SportDiscus; PEDro from inception to August 2012.

RESULTS

Fourteen trials were included in this review, involving a total of 648 participants. Just six trials incorporated prescriptions that would meet current recommendations for aerobic exercise. However, none of the trials included in this review reported intervention adherence of 75% or more for a set prescription that would meet current aerobic exercise guidelines. Despite uncertainty around adherence in many of the included trials, the interventions caused improvements in aerobic exercise tolerance at 8-12 weeks (SMD=0.73, 95% CI=0.51-0.95) in intervention participants compared with controls. At 6 months, aerobic exercise tolerance is also improved (SMD=0.70, 95% CI=0.45-0.94), although four of the five trials had a high risk of bias; hence, caution is warranted in its interpretation.

CONCLUSION

Expecting the majority of sedentary survivors to achieve the current exercise guidelines is likely to be unrealistic. As with all well-designed exercise programmes, prescriptions should be designed around individual capabilities and frequency, duration and intensity or sets, repetitions, intensity of resistance training should be generated on this basis.