Diet and physical activity in childhood cancer survivors: a review of the literature

Factors impacting physical activity among post-treatment pediatric cancer survivors with overweight and obesity

BACKGROUND

Pediatric cancer survivors (PCS) with overweight and obesity are at risk for various secondary chronic diseases. Although previous research has found physical activity (PA) as beneficial after treatment, the PA levels are low among PCS, highlighting the need for lifestyle interventions targeting PA.

METHODS

A secondary analysis of preliminary baseline data from a multi-site trial, NOURISH-T + , a healthy lifestyle intervention for PCS with overweight and obesity, and their caregivers, was conducted to assess factors related to PCS PA (i.e., moderate to vigorous intensity PA, MVPA). Kendall's Tau-b was used to assess correlations between PCS MVPA, health and treatment-related factors, and caregivers' sedentary behavior and MVPA. Wilcoxon Signed Ranks Test was used to assess the differences between PCS and caregiver sedentary behavior and MVPA. A multiple linear regression analysis was performed to determine predictors of PCS MVPA.

RESULTS

Seventy-three PCS-caregiver dyads were included in this analysis (N = 146). Many of the PCS were female, diagnosed with Acute Lymphoblastic Leukemia, stage 1, with a mean body mass index (BMI) percentile of 94.4 ± 4.7. Caregivers were female and parents to the PCS. Significant correlations were found between PCS MVPA, time since treatment, PCS weight change since COVID, caregiver sedentary behavior and MVPA. Significant differences were observed between PCS and caregiver sedentary behavior and MVPA. Household income, radiation treatment, and caregiver MVPA were significant predictors of PCS MVPA.   Conclusions: Demographics, cancer treatment type, and caregiver role modeling are important factors to consider when developing future lifestyle interventions for PCS. (NCT04656496, registered 12-07-2020).

WHAT IS KNOWN

• Parents/caregivers are presumed to be a potential influence on their children's physical activity What is new: • Parents/caregivers' moderate-to-vigorous physical activity is the strongest predictor of their children's (pediatric cancer survivors') physical activity.

Dietary patterns and their associations with sociodemographic and lifestyle factors in adult survivors of childhood cancer: a cross-sectional study

BACKGROUND

Little is known about the specific dietary patterns in adult survivors of childhood cancer.

OBJECTIVES

We aimed to identify dietary patterns specific to childhood cancer survivors and examine their associations with sociodemographic and lifestyle factors.

METHODS

Adult survivors of childhood cancer (mean:31 ± 8 y; n = 3022) and noncancer controls (n = 497) in the St. Jude Lifetime Cohort self-reported diet over the past 12 mo using a validated food frequency questionnaire. Factor analysis with 48 predefined food groups was performed to identify foods consumed together. Subsequently, cluster analysis with energy-adjusted factor scores was used to categorize survivors into a mutually exclusive dietary pattern. Dietary patterns were the primary outcomes. Multivariable multinomial logistic regressions were used to cross-sectionally examine associations between sociodemographic and lifestyle factors and dietary patterns in cancer survivors.

RESULTS

Among the 4 dietary patterns identified, the fast-food pattern (36 %) was the most common, followed by the Western contemporary (30 %), the plant-based (20 %), and the animal-based (14 %) patterns in childhood cancer survivors. By contrast, the plant-based (38 %) and fast-food patterns (29 %) were prevalent in controls. In survivors, male sex, younger age, lower educational attainment, and physical inactivity were associated with the fast-food, Western contemporary, or animal-based pattern. Compared with non-Hispanic White survivors consuming the plant-based diet, non-Hispanic Black survivors were 2-5 times more likely to consume the fast-food [odds ratio (OR:= 2.76; 95 % CI: 1.82, 4.18) or the animal-based diet (OR: 5.61; 95 % CI: 3.58, 8.78)]. Moreover, survivors residing in the most deprived area were 2-3 times more likely to consume the fast-food, Western contemporary, or animal-based diet.

CONCLUSIONS

Unhealthy dietary patterns are prevalent in adult survivors of childhood cancer, especially those with lower socioeconomic status and racial minorities. Interventions to improve diet and health in childhood cancer survivors need to concurrently address disparities that contribute to adherence to healthy dietary practices. This trial was registered at clinicaltrials.gov as NCT00760656 (https://classic.

CLINICALTRIALS

gov/ct2/show/NCT00760656).

Adherence to the World Cancer Research Fund/American Institute for Cancer Research recommendations for cancer prevention in adolescent and young adult (AYA) cancer survivors: results from the SURVAYA study

PURPOSE

For adolescent and young adult (AYA) cancer survivors with a good prognosis, having a healthy lifestyle prevents morbidity and mortality after treatment. The aim of this study was to investigate the prevalence of (un)healthy lifestyle behaviors and related determinants in AYA cancer survivors.

METHODS

A population-based, cross-sectional study was performed among long-term (5-20 years) AYA cancer survivors (18-39 years old at diagnosis) registered within the Netherlands Cancer Registry. Self-reported questionnaires data about health behaviors were used to calculate the 2018 World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) adherence score. Associations between the score and clinical/sociodemographic determinants of (un)healthy behaviors were investigated using logistic regression models.

RESULTS

The mean WCRF/AICR score was low to moderate, 3.8 ± 1.2 (0.5-7.0) (n = 3668). Sixty-one percent adhered to "limit the consumption of sugar sweetened drinks," 28% to "be a healthy weight," 25% to "fruit and vegetable consumption," and 31% to "limit alcohol consumption." Moderate and high adherence were associated with being a woman (ORmoderate = 1.46, 95% CI = 1.14-1.85, and ORhigh = 1.87, 95% CI = 1.46-2.4) and highly educated (ORmoderate = 1.54, 95% CI = 1.30-1.83, and ORhigh = 1.87, 95% CI = 1.46-2.4). Low adherence was associated with smoking (ORmoderate = 0.68, 95% CI = 0.50-0.92, and ORhigh = 0.30, 95% CI = 0.21-0.44) and diagnosis of germ cell tumor (ORmoderate = 0.58, 95% CI = 0.39-0.86, and ORhigh = 0.45, 95% CI = 0.30-0.69).

CONCLUSIONS

Adherence to the 2018 WCRF/AICR lifestyle recommendations was low to moderate, especially regarding body weight, fruit, vegetables, and alcohol consumption. Men, current smokers, lower-educated participants, and/or those diagnosed with germ cell tumors were less likely to have a healthy lifestyle.

IMPLICATIONS FOR CANCER SURVIVORS

Health-promotion programs (e.g., age-specific tools) are needed, focusing on high-risk groups.

Patterns of physical activity and sedentary behavior in child and adolescent cancer survivors assessed using wrist accelerometry: A cluster analysis approach

Physical activity levels among childhood cancer survivors are typically quantified as a total amount using time spent in various intensities. Yet, most analyses do not consider the transitory nature of children's behaviors and a more detailed approach could provide complimentary information. We aimed to explore various behavior profiles of survivors' daily and hourly physical activity patterns. We measured 8-18-year-old survivors' activity levels over 7 days using wrist accelerometry and cluster analysis. Of the 37 participant datasets, survivors engaged in mean (SD) 36.3 (19.0) min/day of MVPA and 4.1 (1.9) hrs/day of sedentary activity. The cluster analysis revealed five daily movement patterns: 'most active' (prevalence 11%), 'active' (22%), 'moderately active + moderately sedentary' (35%), 'moderately active + high sedentary' (5%) and 'least active' (27%). Younger survivors and those with less time since treatment completion were more likely to be in the active clusters. Hourly behaviors were characterized by short bursts of MVPA and moderate bouts of sedentary activity. Our approach provides an insightful analysis into the nature and timing of childhood cancer survivors' movement behaviours. Our findings may assist in the development of targeted interventions to improve physical activity levels.

Adherence to healthy diet and risk of cardiovascular disease in adult survivors of childhood cancer in the St. Jude Lifetime Cohort: a cross-sectional study

BACKGROUND

Whether diet has beneficial effects on cardiovascular disease (CVD) in childhood cancer survivors as in the general population is unknown. Therefore, we examined associations between dietary patterns and risk of CVD in adult survivors of childhood cancer.

METHODS

Childhood cancer survivors, 18-65 years old in the St Jude Lifetime Cohort (1882 men and 1634 women) were included in the analysis. Dietary patterns were defined by the adherence to the Healthy Eating Index (HEI)-2015, Dietary Approaches to Stop Hypertension (DASH), and alternate Mediterranean diet (aMED) based on a food frequency questionnaire at study entry. CVD cases (323 in men and 213 in women) were defined as participants with at least one grade 2 or higher CVD-related diagnosis at baseline. Multivariable logistic regression adjusted for confounders was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) of CVD.

RESULTS

Greater adherence to HEI-2015 (OR=0.88, 95% CI: 0.75-1.03, per 10 score increment), DASH (OR=0.85, 95% CI: 0.71-1.01, per 10 score increment), and aMED (OR=0.92, 95% CI: 0.84-1.00, each score increment) were, albeit trending towards significance, associated with a lower risk of CVD in women. HEI-2015 was associated with a non-significantly lower risk of CVD in men (ORQ5 vs. Q1=0.80, 95% CI: 0.50-1.28). These dietary patterns were also associated with a lower risk of CVD in survivors with high underlying CVD risk.

CONCLUSIONS

As recommended to the general population, a diet rich in plant foods and moderate in animal foods needs to be a part of CVD management and prevention in childhood cancer survivors.

Physical Inactivity as an Early Sign of Frailty in Young Adult Survivors of Childhood Acute Lymphoblastic Leukemia

Young adult survivors of childhood leukemia have been reported with increased likelihood of age-related comorbidities compared with the general population. We compared the prevalence of frailty in young adult survivors of childhood acute lymphoblastic leukemia (n=58, median age=23 y, median survival time=18 y) with age-matched and sex-matched controls without history of cancer. Frailty phenotypes were determined using Fried frailty model. Association between frailty status and cardiometabolic conditions, systemic inflammation, and T-cell immunophenotype changes were also examined. Frailty and prefrailty were more common among survivors compared with controls (58.6% vs. 34.5%, P =0.019). Physical inactivity (39.7%) was the most frequently observed frailty criterion among the survivors. Prevalence of cardiometabolic conditions was comparable between the robust and frail/prefrail survivors. Robust survivors had a higher level of T-cell activation than the prefrail/frail survivors ( P <0.05), but no significant difference was observed for systemic inflammatory markers (IL-6 and C-reactive protein) and percentage of terminally differentiated T cells. Signs of frailty, especially physical inactivity, was detected in childhood acute lymphoblastic leukemia survivors early in their third decade of life. Survivors who were prefrail/frail also had altered T-cell activation; however, the role of such changes in T-cell phenotype in the etiology of frailty warrant further investigation.

Accelerometry-based assessment of physical activity and sedentary behavior in adult survivors of childhood acute lymphoblastic leukemia and their healthy peers

Adult survivors of childhood acute lymphoblastic leukemia (ASALL) compose a specific group that faces an increased risk of experiencing late effects of their earlier treatment. Physical activity (PA) may be one of the appropriate means for preventing or minimizing the late effects of treatment. The main purpose of this study is to characterize device-measured PA and sedentary behavior (SB) among ASALL. The specific objective was to compare the movement behavior with a group recruited from the healthy population and to determine the degree of compliance with health recommendations for PA in the adult population. Twenty ASALL and 21 healthy control group (CG) members participated in the study. Participants were between 18 and 30 years old. Movement behavior was assessed for seven days using an Axivity AX3 accelerometer and a 24-h wearing protocol. Movement behavior was characterized by the amount of time spent in SB, light PA (LPA), moderate PA (MPA), and vigorous PA (VPA). There were no significant differences in movement behavior or compliance with PA recommendations between the ASALL and CG. During the week, the ASALL accumulated 711 min per day of SB vs. 636 min per day in the CG (p = 0.26); the ASALL had 186 min per day of LPA vs. 201 min per day in the CG (p = 0.47); the ASALL had 132 min per day of MPA vs. 147 min per day in the CG (p = 0.25); and the ASALL had 5 min per day of VPA vs. 4 min per day in the CG (p = 0.48). All research participants (ASALL and CG) met the PA recommendations of > 150 min per week for moderate PA. The results of our study suggest that ASALL, even after suffering from that disease in childhood, display comparable levels of PA and SB to their healthy peers. Both groups met the health recommendations for PA. The device-based monitoring of PA and SB should be an integral part of monitoring the late effects of treatment.

Resting energy expenditure in children at risk of hypothalamic dysfunction

OBJECTIVE

Children with suprasellar brain damage are at risk of hypothalamic dysfunction (HD). HD may lead to decreased resting energy expenditure (REE). Decreased REE, however, is not present in all children with HD. Our aim was to assess which children suspect for HD have low REE, and its association with clinical severity of HD or radiological hypothalamic damage.

PATIENTS AND METHODS

A retrospective cohort study was performed. Measured REE (mREE) of children at risk of HD was compared to predicted REE (pREE). Low REE was defined as mREE <90% of predicted. The mREE/pREE quotient was associated to a clinical score for HD symptoms and to radiological hypothalamic damage.

RESULTS

In total, 67 children at risk of HD (96% brain tumor diagnosis) with a mean BMI SDS of +2.3 ± 1.0 were included. Of these, 45 (67.2%) had low mREE. Children with severe HD had a significant lower mean mREE/pREE quotient compared to children with no, mild, or moderate HD. Mean mREE/pREE quotient of children with posterior hypothalamic damage was significantly lower compared to children with no or anterior damage. Tumor progression or tumor recurrence, severe clinical HD, and panhypopituitarism with diabetes insipidus (DI) were significant risk factors for reduced REE.

CONCLUSION

REE may be lowered in children with hypothalamic damage and is associated to the degree of clinical HD. REE is, however, not lowered in all children suspect for HD. For children with mild or moderate clinical HD symptoms, REE measurements may be useful to distinguish between those who may benefit from obesity treatment that increases REE from those who would be better helped using other obesity interventions.

Efficacy of Mobile Instant Messaging-Delivered Brief Motivational Interviewing for Parents to Promote Physical Activity in Pediatric Cancer Survivors: A Randomized Clinical Trial

IMPORTANCE

Physical activity has beneficial effects that mitigate cancer- and treatment-related late effects. However, children who survive cancer are often physically inactive. Brief motivational interviewing may be an effective approach for increasing children's physical activity levels.

OBJECTIVE

To examine the effects of mobile instant messaging-delivered brief motivational interviewing for parents in promoting regular physical activity in children who have survived cancer.

DESIGN, SETTING, AND PARTICIPANTS

An assessor-blinded randomized clinical trial was conducted at 2 Hong Kong pediatric oncology outpatient clinics from March 1, 2019, to January 29, 2021. A total of 161 children who had survived cancer, aged 9 to 16 years, and their parents were randomized (1:1) to an intervention or control group.

INTERVENTIONS

The intervention group received a 6-month mobile instant messaging-delivered brief motivational interviewing using a strategy menu. Parent-child dyads in both groups received a health advice session and were directed to a physical activity website at baseline.

MAIN OUTCOMES AND MEASURES

The primary outcome was the children's physical activity levels at 12-month follow-up, measured by the Chinese University of Hong Kong: Physical Activity Rating for Children and Youth (total sores: 0-10, higher scores indicate greater physical activity levels). Secondary outcomes were cancer-related fatigue levels, handgrip strength, peak expiratory flow rate, and quality of life. Intention-to-treat analysis was performed.

RESULTS

Of the 161 children included in the study, 93 were boys (57.8%), and the mean (SD) age was 12.4 (2.4) years. Generalized estimating equation analyses showed a significant improvement in outcomes in the intervention group compared with the control group: physical activity levels (group-by-time interaction, 6 months: β = 3.09; 95% CI, 2.65-3.53; P < .001; 12 months: β = 3.91; 95% CI, 3.45-4.36; P < .001), cancer-related fatigue (6 months: β = -5.69; 95% CI, -8.03 to -3.35; P < .001; 12 months: β = -9.16; 95% CI, -11.31 to -7.00; P < .001), left handgrip strength (6 months: β = 2.69; 95% CI, 0.96-4.43; P = .002; 12 months: β = 5.52; 95% CI, 3.70-7.33; P < .001), right handgrip strength (6 months: β = 2.75; 95% CI, 1.01-4.50; P = .002; 12 months: β = 5.45; 95% CI, 3.62-7.27; P < .001), peak expiratory flow rate (12 months: β = 28.51; 95% CI, 16.10-40.92; P < .001), and quality of life (6 months: β = 5.01; 95% CI, 1.19-8.82; P = .01); 12 months: β = 14.19; 95% CI, 10.84-17.54; P < .001).

CONCLUSIONS AND RELEVANCE

In this randomized clinical trial, mobile instant messaging-delivered brief motivational interviewing was effective in promoting the adoption and maintenance of regular physical activity and ameliorating cancer- or treatment-related adverse effects in children who survived cancer.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT03859271.

Blood DNA methylation signatures are associated with social determinants of health among survivors of childhood cancer

Social epigenomics is an emerging field in which social scientist collaborate with computational biologists, especially epigeneticists, to address the underlying pathway for biological embedding of life experiences. This social epigenomics study included long-term childhood cancer survivors enrolled in the St. Jude Lifetime Cohort. DNA methylation (DNAm) data were generated using the Illumina EPIC BeadChip, and three social determinants of health (SDOH) factors were assessed: self-reported educational attainment, personal income, and an area deprivation index based on census track data. An epigenome-wide association study (EWAS) was performed to evaluate the relation between DNAm at each 5’-cytosine-phosphate-guanine-3’ (CpG) site and each SDOH factor based on multivariable linear regression models stratified by ancestry (European ancestry, n = 1,618; African ancestry, n = 258). EWAS among survivors of European ancestry identified 130 epigenome-wide significant SDOH–CpG associations (P < 9 × 10⁻⁸), 25 of which were validated in survivors of African ancestry (P < 0.05). Thirteen CpGs were associated with all three SDOH factors and resided at pleiotropic loci in cigarette smoking–related genes (e.g., CLDND1 and CPOX). After accounting for smoking and body mass index, these associations remained significant with attenuated effect sizes. Seven of 13 CpGs were associated with gene expression level based on 57 subsamples with blood RNA sequencing data available. In conclusion, DNAm signatures, many resembling the effect of tobacco use, were associated with SDOH factors among survivors of childhood cancer, thereby suggesting that biologically distal SDOH factors influence health behaviours or related factors, the epigenome, and subsequently survivors’ health.

Cardiovascular Function and Exercise Capacity in Childhood Cancer Survivors

Introduction: Childhood cancer survivors (CCS) might be at high risk of additional chronic diseases due to cardiotoxic side effects. The aim of this study was to analyze long-term side effects of cancer therapy on vascular structure/function, cardiac biomarkers and on physical activity. Methods: In total, 68 asymptomatic patients aged 16–30 years with childhood cancer (diagnosed 10.6 ± 3.9 years ago) were examined from 2015–2020. (Central) blood pressure and pulse wave velocity were registered via the oscillometric method, while carotid intima-media thickness (cIMT) was measured non-invasively by ultrasound. cIMT values of patients were compared to healthy controls (n = 68; aged 22.3 ± 3.5 years). Patients’ exercise capacity was recorded. The plasma N-terminal pro-brain natriuretic protein (NTproBNP) and troponin levels were measured as cardiac biomarkers. CCS were categorized in groups with low, moderate and high anthracyclines. Results: No differences were found in cIMT between patients and controls as well as between patients with various anthracycline dosage. Patients with high dose anthracyclines showed a significant lower performance versus patients with moderate dose anthracyclines (84.4% of predicted VO₂peak; p = 0.017). A total of 11.6% of CCS had abnormal NTproBNP values which correlated with received anthracycline dosage (p = 0.024; r = 0.343). Conclusion: NTproBNP levels and exercise capacity might be early markers for cardiovascular dysfunction in CCS and should be included in a follow-up protocol, while cIMT and troponin seem not to be adequate parameters.

Parent perceptions of their child's and their own physical activity after treatment for childhood cancer

PURPOSE

Parents are important facilitators of physical activity for children, yet little is known about the perceptions of parents of childhood cancer survivors. We investigated parent perceptions of their own and their child's physical activity levels after cancer treatment and examined associations with clinical, demographic, and psychosocial factors.

METHODS

We conducted a cross-sectional survey among 125 parents and 125 survivors. Parents reported on the perceived importance of their child being physically active and concerns regarding exercising after cancer treatment.

RESULTS

Parents and survivors self-reported median (range) of 127.5 (0-1260) and 220 (0-1470) min/week of moderate-to-vigorous physical activity. Most parents (n = 109, 98%) believed that physical activity was highly important for their child. Some parents (n = 19, 17%) reported concerns, most commonly regarding exercise safety (n = 7, 22%). Parents were more likely to perceive that their child should increase physical activity if their child was an adolescent and had high body fat percentage.

CONCLUSIONS

Physical activity levels varied widely among survivors, reflecting factors including parents' lifestyles, limited understanding of exercise benefits and perceptions of risk. Given survivors' insufficient physical activity levels and sedentary behaviour among families, embedding physical activity promotion into health systems and follow-up support could benefit the entire family unit.

The Physical Activity and fitness in Childhood Cancer Survivors (PACCS) Study: Protocol for an international, mixed-methods study (Preprint)

Background

Survivors of childhood cancer represent a growing population with a long life expectancy but high risks of treatment-induced morbidity and premature mortality. Regular physical activity (PA) may improve their long-term health; however, high-quality empirical knowledge is sparse.

Objective

The Physical Activity and Fitness in Childhood Cancer Survivors (PACCS) study comprises 4 work packages (WPs) aiming for the objective determination of PA and self-reported health behavior, fatigue, and quality of life (WP 1); physical fitness determination (WP 2); the evaluation of barriers to and facilitators of PA (WP 1 and 3); and the feasibility testing of an intervention to increase PA and physical fitness (WP 4).

Methods

The PACCS study will use a mixed methods design, combining patient-reported outcome measures and objective clinical and physiological assessments with qualitative data gathering methods. A total of 500 survivors of childhood cancer aged 9 to 18 years with ≥1 year after treatment completion will be recruited in follow-up care clinics in Norway, Denmark, Finland, Germany, and Switzerland. All participants will participate in WP 1, of which approximately 150, 40, and 30 will be recruited to WP 2, WP3, and WP 4, respectively. The reference material for WP 1 is available from existing studies, whereas WP 2 will recruit healthy controls. PA levels will be measured using ActiGraph accelerometers and self-reports. Validated questionnaires will be used to assess health behaviors, fatigue, and quality of life. Physical fitness will be measured by a cardiopulmonary exercise test, isometric muscle strength tests, and muscle power and endurance tests. Limiting factors will be identified via neurological, pulmonary, and cardiac evaluations and the assessment of body composition and muscle size. Semistructured, qualitative interviews, analyzed using systematic text condensation, will identify the perceived barriers to and facilitators of PA for survivors of childhood cancer. In WP 4, we will evaluate the feasibility of a 6-month personalized PA intervention with the involvement of local structures.

Results

Ethical approvals have been secured at all participating sites (Norwegian Regional Committee for Medical Research Ethics [2016/953 and 2018/739]; the Oslo University Hospital Data Protection Officer; equivalent institutions in Finland, Denmark [file H-19032270], Germany, and Switzerland [Ethics Committee of Northwestern and Central Switzerland, project ID: 2019-00410]). Data collection for WP 1 to 3 is complete. This will be completed by July 2022 for WP 4. Several publications are already in preparation, and 2 have been published.

Conclusions

The PACCS study will generate high-quality knowledge that will contribute to the development of an evidence-based PA intervention for young survivors of childhood cancer to improve their long-term care and health. We will identify physiological, psychological, and social barriers to PA that can be targeted in interventions with immediate benefits for young survivors of childhood cancer in need of rehabilitation.

International Registered Report Identifier (IRRID)

DERR1-10.2196/35838

Physical activity and fitness in childhood cancer survivors: a scoping review

BACKGROUND

Estimates indicate that nearly eight percent of the over 500,000 survivors of childhood cancer living in the United States are frail in their fourth and fifth decades of life, a phenotype typically seen in geriatric populations. Participation in regular physical activity to improve physical fitness in healthy and diseased populations reduces risk for frail health by increasing physiologic reserve. However, physical activity may not have the same effects on fitness in childhood cancer survivors as it does among their peers with no cancer history.

AIMS

This scoping review seeks to describe associations between physical activity, physical fitness, chronic disease, and mortality in childhood cancer survivors.

METHODS

Relevant literature was identified through a comprehensive search in the PubMed, Web of Science, CINAHL, and Cochrane databases. A narrative synthesis was performed on observational studies that had physical activity or physical fitness clearly defined and compared with chronic disease outcomes.

RESULTS

A total of 595 studies were screened, and results from 11 studies are presented. Childhood cancer survivors who participate in regular physical activity have improved markers of cardiovascular health, decreased risk of overt cardiovascular disease, and decreased risk of all-cause mortality compared to survivors who are not physically active. Childhood cancer survivors who are physically fit have increased neurocognition, and decreased risk of all-cause mortality compared to survivor's who are not fit. The differential effects of physical activity on fitness and health among childhood cancer survivors when compared to peers is potentially related to treatment exposures that damage cardiovascular tissue and impact regenerative potential.

CONCLUSION

Research is needed to determine the optimal timing, frequency, intensity, and duration of physical activity necessary to optimize fitness in childhood cancer survivors.

Physical activity levels, exercise preferences, and exercise barriers in Korean children and adolescents after cancer treatment

PURPOSE

The purpose of the current study was to explore physical activity (PA) levels, exercise preferences, and perceived barriers to PA in childhood cancer survivors.

METHODS

This cross-sectional study surveyed 120 childhood cancer survivors aged 8-18 years from the pediatric oncology center in South Korea between March and August 2017. The modified Exercise & Quality of Life questionnaire, Korea Youth Risk Behavior Web-based Survey, and Godin Leisure-Time Questionnaire were used to assess PA levels, preferences, and exercise barriers.

RESULTS

Among 120 participants (72 boys, 48 girls) whose average age at the time of the survey was 14.57 ± 3.00 years and the average age at diagnosis was 8.22 years, the three most common diagnoses were acute leukemia (43.3%), brain tumor (13.3%), and malignant lymphoma (10.8%). Only 16 participants (5%) met the PA recommendations for children (at least 60 min of moderate PA per day). The most preferred sporting activities included soccer, basketball, strengthening exercises, badminton, dance, and taekwondo. They generally had positive attitudes toward exercise, and more than 63% of participants intended to exercise the following month. The five most prevalent perceived barriers to exercise were lack of time, poor health, reluctance to sweat, lack of exercise skills, and no exercise partners.

CONCLUSIONS

While most childhood cancer survivors did not meet the PA recommendation, most of them agreed that exercise was beneficial, and they intended to participate in the exercise. Exercise and PA programs should be tailored to the personal health and preferences of childhood cancer survivors.

Persistent Symptoms, Quality of Life, and Correlates with Health Self-Efficacy in Adolescent and Young Adult Survivors of Childhood Cancer

Purpose: The numbers of adolescent and young adult (AYA) survivors of childhood cancer are exponentially growing. To ensure suitable services are available to meet the needs of this growing population, understanding the experience of late effects, quality of life, and potentially modifiable factors, such as self-efficacy, is required. Methods: AYA survivors of childhood cancer recruited through an After Cancer Therapy Service at a Children's Hospital rated their symptoms experience, quality of life, and self-efficacy using the Patient Reported Outcome Common Terminology Criteria for Adverse Events, Functional Assessment of Cancer Therapy-General (FACT-G), and Patient-Reported Outcomes Measurement Information System (PROMIS^®), respectively. Descriptive statistics were used to characterize the sample. Quality-of-life scores were compared with population norms. Regression analyses were used to explore the relationships between symptom experience, quality of life, and self-efficacy. Results: Thirty participants (mean age 22 ± 4.4 years) reported an average of nine symptoms as persistently experienced at moderate or higher rated intensity among participants (standard deviation ±8.7; range: 0-32; interquartile range: 2-16); over half (n = 17, 56.7%) had finished treatment 10 or more years ago. Participants scored lower on the FACT-G Physical Well-being and Emotional Well-being, and higher on Social Well-being subscales than the general population. Around two-thirds of participants were confident in their ability to self-manage their health based on their health self-efficacy score. Bivariate linear regression identified a statistically significant increase in the overall quality of life with increased self-efficacy, adjusted for age and sex (0.60, 95% confidence interval [CI] 0.30-0.90, p < 0.01). Higher symptom burden was associated with a lower overall quality of life after adjusting for age and sex (-0.95, 95% CI: -1.35 to -0.54, p < 0.001). Conclusion: Young cancer survivors experience a substantial number of persistent symptoms related to their cancer treatment that may negatively impact aspects of their quality of life. Health self-efficacy is a potential target for future interventions.

Unique Features of a Web-Based Nutrition Website for Childhood Cancer Populations: Descriptive Study

Background

Children with cancer experience a myriad of nutritional challenges that impact their nutrition status during treatment and into survivorship. Growing evidence suggests that weight at diagnosis impacts cancer outcomes, but provider guidance on nutrition and diet during treatment varies. Nutrition literacy and culinary resources may help mitigate some common nutritional problems; however, many patients may face barriers to accessing in-person classes. Along with dietitian-led clinical interventions, web-based resources such as the newly updated electronic cookbook (e-cookbook) created by The University of Texas MD Anderson Cancer Center, @TheTable, may facilitate access to nutrition and culinary education during treatment and into survivorship.

Objective

We sought to define and describe the features and content of the @TheTable e-cookbook and compare it with analogous resources for a lay audience of patients with childhood cancer and childhood cancer survivors as well as their families.

Methods

We evaluated freely available web-based resources via a popular online search engine (ie, Google). These searches yielded three web-based resources analogous to @TheTable: the American Institute for Cancer Research’s Healthy Recipes, The Children’s Hospital of San Antonio’s Culinary Health Education for Families Recipe for Life, and Ann Ogden Gaffney and Fred Hutchinson Cancer Research Center’s Cook for Your Life. These sites were analyzed for the following: number of recipes, search functionality, child or family focus, cancer focus, specific dietary guidance, videos or other media, and miscellaneous unique features.

Results

Cook for Your Life and Culinary Health Education for Families Recipe for Life were the most comparable to @TheTable with respect to cancer focus and family focus, respectively. Healthy Recipes is the least user-friendly, with few search options and no didactic videos.

Conclusions

The @TheTable e-cookbook is unique in its offering of child- and family-focused content centered on the cancer and survivorship experience.

Implementation of a Prevention Program Based on Adapted Physical Activity and Recommendations for Adolescents and Young Adults with Cancer: PREVAPAJA Study

Purpose: In Europe, 20,000 Adolescent and Young Adults (AYAs) aged 15-25 years are diagnosed with cancer annually. Although prognosis is good, AYA cancer survivors are at greater risk of second primary cancers, cardiovascular disease, and various long-term effects. Benefits of physical activity (PA) in AYAs reported in current studies remain difficult to generalize; none has been performed in France. This single-arm intervention study tested the feasibility of combining hospital-based supervised and home-based unsupervised physical activity sessions (PAS) and providing cancer prevention recommendations for AYAs. Methods: The AYAs attended PAS concomitant to treatment and participated in one face-to-face prevention interview. PA (international physical activity questionnaire), 6-min walk distance (6MWD), sedentarity, anthropometrics, quality of life (QoL), and fatigue were assessed at baseline (T1) and end of intervention (T2). PA, satisfaction and cancer prevention behaviors were assessed 1 year after baseline (T3). Results: Fifty-nine AYAs (mean 19 years) participated in the study. Acceptability and attrition were 80% and 12%, respectively. Between T1 and T2, 6MWD and global QoL improved (p < 0.001), and fatigue decreased (p = 0.003). Total PA improved and sitting time decreased (p < 0.001) overall (T1-T3). Assessment at T3 showed interindividual differences in how participants considered risk factors (e.g., more attention to PA, UV exposures, nutrition). Conclusion: Combined supervised and unsupervised home-based PAS in AYAs undergoing cancer treatment is acceptable and feasible. The program contributes to maintaining and improving physical fitness and QoL, while reducing fatigue and other cancer and treatment symptoms. Larger randomized controlled trials are needed to confirm these results.

Parental perspectives on promoting physical activity for their children surviving cancer: A qualitative study

OBJECTIVE

Physical activity is vital for the healthy development of pediatric cancer survivors. We aimed to explore parental perception on the importance, the barriers to and facilitators of participating in physical activity for their children surviving cancer.

METHODS

A qualitative study, using a descriptive phenomenological approach, was conducted. Purposive sample of parents of pediatric cancer survivors aged 9-16 years and had completed treatment at least six months previously were participated in one-to-one semi-structured interviews conducted by two trained research nurses. Data analysis followed Colaizzi's descriptive phenomenology method.

RESULTS

Twenty-eight parents (64.3 % female) of pediatric cancer survivors were interviewed. Most parents lacked awareness and knowledge regarding the importance and benefits of physical activity in their child's survivorship. Major barriers identified were parental concern about their child performing physical activity, time constraints and lack of recreational facilities and activity provision. Parents reported that parental support, family involvement and child's interests and enjoyment appeared to be crucial facilitators of survivors' physical activity.

CONCLUSION

This study identified the barriers to and facilitators of engaging in physical activity of pediatric cancer survivors from the parental perspectives.

PRACTICAL IMPLICATIONS

The findings of the study is important for the development of health education to promote regular physical activity among pediatric cancer survivors.

Cancer survivors exercise at higher intensity in outdoor settings: The GECCOS trial

PURPOSE

This randomized cross-over group pilot trial assessed feasibility of recruiting survivors from a long-term follow-up clinic to an exercise group and measured whether outdoor or indoor exercise sessions better supported exercise motivation and behaviors in survivors of cancer.

METHODS

Sixteen adolescent and young adult survivors of any cancer completed indoor and outdoor exercise sessions in this randomized cross-over pilot trial. Measures of physical activity, motivation, and fatigue were taken 2 weeks before and 2 weeks after indoor sessions and 2 weeks before and 2 weeks after outdoor sessions. Measures of physical activity and fatigue were also taken during each exercise session.

RESULTS

Initial recruiting of 19 participants met recruiting goals. Survivors who attended the most sessions lived an average of 8.7 km closer to the clinic. Objectively measured physical activity intensity was 0.63 metabolic equivalents of a task (METs) per minute greater during outdoor exercise sessions as compared to indoor exercise sessions. There were no meaningful differences in long term, habitual physical activity behavior, motivation, or fatigue in the weeks following the outdoor exercise sessions as compared to the indoor exercise sessions.

CONCLUSIONS

This study shows the feasibility of recruiting survivors from a long-term follow-up clinic to community-based exercise groups. Although this brief pilot intervention did not show significant effects on habitual physical activity behavior or motivation in adolescent and young adult survivors of cancer, the greater exercise intensity during the outdoor exercise sessions indicate that holding group exercise sessions for survivors outdoors may promote greater intensity during exercise.

Eating behaviors and dietary quality in childhood acute lymphoblastic leukemia survivors

BACKGROUND

Childhood acute lymphoblastic leukemia (ALL) survivors' increased risk for adverse health outcomes could be mitigated through consuming a balanced diet. Nonetheless, >70% of adult survivors do not meet survivorship dietary recommendations. ALL treatment may amplify risk for restricted dietary preferences (picky eating) and poor self-regulation of food intake that could contribute to suboptimal diets in survivorship. This study aims to: (a) characterize differences in picky eating and self-regulation of food intake between survivors and peer controls; and (b) examine the associations between these eating behaviors and dietary quality in ALL survivors relative to peer controls.

METHODS

Participants were children (5-13 years) with (n = 32) and without (n = 32) a history of ALL and their caregivers. Children's dietary quality (Healthy Eating Index-2015) was calculated from 24-h dietary recalls. Caregivers completed the Child Eating Behavior Questionnaire-Food Fussiness subscale and the Child Self-Regulation in Eating Questionnaire.

RESULTS

Independent samples t-tests revealed survivors exhibited greater picky eating than peer controls but comparable self-regulation of food intake. Bootstrapped grouped multivariate regression results showed that for ALL survivors, greater picky eating was associated with worse dietary quality (controlling for age and self-regulation of food intake). For peer controls, worse self-regulation of food intake was associated with poorer dietary quality (controlling for picky eating and age).

CONCLUSIONS

Results provide preliminary support that different eating behaviors contribute to poor dietary quality in children with and without an ALL history. These findings suggest that interventions to improve ALL survivors' dietary quality may benefit targeting picky eating.

Designing an exercise intervention for adult survivors of childhood cancers

BACKGROUND

This study examined current physical activity levels and preferences for exercise settings and activities among adult survivors of childhood cancers as a strategy to inform the feasibility and design of such programs.

METHODS

A mixed-methods design was used to investigate current activity levels as well as barriers to and preferences for physical activity among 20 adult survivors of pediatric cancer.

RESULTS

One-half of participants reported engaging in regular physical activity, although the frequency, intensity, and duration varied. Overall, 17 of the 20 participants (85%) stated they would be interested in participating in a structured exercise intervention, and they expressed a strong interest in walking (76%), bicycling (53%), and weight training (53%). Common barriers to participation in a potential structured exercise program were insufficient time, current health issues, and program location/distance. Nearly all participants agreed that information on nutrition and diet should be included as part of an exercise intervention.

CONCLUSIONS

These findings will help inform the design and implementation of future exercise programs to enhance physical activity among this high-risk group of cancer survivors.

Peak Oxygen Uptake and Exercise Capacity of Children Undergoing Leukemia Treatment

The aim of the study was to assess the exercise capacity (VO_2peak) of children undergoing leukemia treatment and to compare the results with healthy children. Furthermore, we assessed the influence of treatment methods on the level of exercise capacity and the increase in sedentary behaviors. The study comprised 21 children (12 boys and 9 girls) undergoing treatment for acute lymphoblastic leukemia (ALL) (n = 13) and acute myeloid leukemia (AML) (n = 8). The subjects were aged 7-13 years (mean age 10.7, SD 2.0 years). Cardiorespiratory fitness was assessed by using the ergospirometry test. Progressive Godfrey protocol was performed. The level of physical activity was assessed by using the questions from the Health Behavior in School-Aged Children (HBSC 2018) questionnaire. The study results showed that children undergoing leukemia treatment were characterized by a reduced level of exercise capacity. The measured value of VO_2peak in the group of treated children was, on average, 22.16 mL·kg^-1·min^-1. The mean values of VO_2peak predicted for this age group were 45.48 mL·kg^-1·min^-1 (SD, 3.8). The measured value of VO_2peak in the study group with the division into age groups was, on average, 21.21 mL·kg^-1·min^-1 in the group of children aged 7-10 years. In the group of children aged 11-13 years, this parameter was 22.64 mL·kg^-1·min^-1. Lack of physical activity and failure to meet the standards for the minimum level of weekly physical activity (MVPA index-moderate-to-vigorous physical activity) probably contribute to the deterioration in exercise capacity level of cancer-treated children.

Dietary behaviours, physical activity and quality of life among childhood cancer survivors in Mainland China: A cross-sectional study

OBJECTIVE

To examine the dietary behaviours, physical activity (PA) and quality of life (QoL) of childhood cancer survivors (CCS) in Mainland China and explore the relationships between these behaviours and QoL.

METHODS

This cross-sectional study recruited 181 CCS from three Grade-A tertiary hospitals in Guangzhou. Survivors completed questionnaires assessing their dietary behaviours, PA and QoL.

RESULTS

Only 2.2%, 7.7% and 2.2% of CCS reported frequent soft drinks, sugar and fast food intake, which were lower compared to CCS in Western studies. Most survivors (72.9%) failed to drink milk daily, and many (54.7%) were picky eating. Sixty percent of CCS reported less moderate-to-vigorous physical activity (MVPA) time than 60 min/day recommended by WHO. Picky eating was significantly associated with lower overall (p < 0.001), physical (p < 0.001) and psychosocial (p < 0.001) QoL. MVPA was significantly positively associated with overall (p < 0.05) and psychosocial (p < 0.01) QoL.

CONCLUSIONS

Chinese CCS engaged better dietary behaviours of less soft drinks, sugar and fast food consumption, but many were picky eaters and did not meet milk intake and PA recommendations. Early behavioural interventions aimed at increasing the dietary diversity and MVPA level of this population should be taken to improve their QoL.

Exercise with Nutrition Education to Improve Quality of Life of Adolescent and Young Adult Cancer Survivors: A Pilot Study

Purpose: Most evidence for the relationship between physical activity, nutrition education, and late effects from cancer treatment come from cross-sectional studies. The purpose of this pilot study was to determine if 8 weeks of exercise and nutrition education in adolescent and young adult (AYA) survivors positively affects fatigue, quality of life, health-related fitness, and dietary intake. Methods: The exercise program targeted improvement in multiple areas of health-related fitness. A Registered Dietitian conducted nutrition education sessions with goal setting. To encourage activity, social engagement, and support, participants connected to a study-specific group. Fatigue and QoL (FACIT, PedsQL Teen, and Young Adult), health-related fitness (cardiovascular endurance, flexibility, muscular strength and endurance, anthropometrics), nutrition knowledge, and dietary intake assessments were conducted at weeks 1 and 10. Participant perceptions of strengths and weaknesses within the program were assessed after program completion. Results: Twenty four (16.6 ± 2.8 years) AYA cancer survivors began and completed the program. Problems with fatigue (PedsQL Teen and Young Adult) significantly improved along with decreased perceived barriers to exercise. Participants significantly improved cardiovascular endurance, flexibility, and muscular strength and endurance. Trying to make healthy nutrition choices, understanding how to read nutrition labels, and identifying a saturated fat significantly improved without a significant change in dietary intake. Participants' favorite program components related to exercise and social support. Conclusion: In view of the short- and long-term impacts of cancer diagnosis, treatment, and survivorship, as well as the benefits of physical activity on these factors, exercise programs with social support should be considered adjuvant therapy among AYA cancer survivors.

The Use of Activity Trackers in Interventions for Childhood Cancer Patients and Survivors: A Systematic Review

Activity trackers have emerged as promising devices used to motivate and/or objectively monitor physical activity (PA) levels. It is unknown how activity trackers have been used in interventions for children and adolescents affected by cancer. This review aimed to investigate the effectiveness of wearable activity trackers to monitor and/or improve PA levels and health outcomes in pediatric oncology. Based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses, we conducted an electronic search of four databases (Cumulative Index to Nursing and Allied Health Literature [CINAHL], Medline, Embase, and SportDiscus) between January 2000 and March 2020. The review included PA interventions that used an activity tracker with children (≤18 years) diagnosed with cancer. We excluded studies including adult participants (>18 at time of study participation) and cross-sectional or case-report studies. Twelve studies examining 517 children and adolescent patients and survivors of pediatric cancer (age range: 4-18 years) were included. Intervention delivery ranged from 2 weeks to 12 months. Two of 12 studies reported increases in PA and 6 showed improvements in health outcomes, including aerobic fitness and negative mood. PA interventions using activity trackers within pediatric oncology are highly diverse in study design, study population, and intervention features. Preliminary data suggest that interventions using wearable activity trackers may have a positive impact on health outcomes in children and adolescents affected by cancer. Future research is needed to establish optimal intervention approaches to using activity trackers to increase PA in children affected by cancer.

Feasibility of FitSurvivor: A technology-enhanced group-based fitness intervention for adolescent and young adult survivors of childhood cancer

BACKGROUND

This study evaluated the feasibility of a technology-enhanced group-based fitness intervention for adolescent and young adult (AYA) survivors of childhood cancer.

PROCEDURE

AYA survivors ages 13-25 years were randomized to the intervention (eight in-person group sessions with mobile app and FitBit followed by 4 weeks of app and FitBit only) or waitlist control. Assessments were at 0, 2, 3, 6, and 9 months. Feasibility was evaluated by enrollment, retention, attendance, app engagement, and satisfaction. Secondary outcomes included physical activity, muscular strength/endurance, cardiorespiratory fitness, health-related quality of life, and fatigue.

RESULTS

A total of 354 survivors were mailed participation letters; 68 (19%) were screened, of which 56 were eligible and 49 enrolled (88% of those screened eligible, 14% of total potentially eligible). Forty-nine survivors (M_age  = 18.5 years, 49% female) completed baseline assessments and were randomized (25 intervention, 24 waitlist). Thirty-seven (76%) completed the postintervention assessment and 32 (65%) completed the final assessment. On average, participants attended 5.7 of eight sessions (range 1-8). Overall intervention satisfaction was high (M = 4.3, SD = 0.58 on 1-5 scale). Satisfaction with the companion app was moderately high (M = 3.4, SD = 0.97). The intervention group demonstrated significantly greater improvement in lower body muscle strength compared to the waitlist postintervention, and small but not statistically significant changes in other secondary measures.

CONCLUSIONS

A group-based intervention with a mobile app and fitness tracker was acceptable but has limited reach due to geographical barriers and competing demands experienced by AYA survivors.

Social ecological interventions to increase physical activity in children and young people living with and beyond cancer: a systematic review

Objective: To identify the behaviour change techniques and intervention components associated with the promotion of physical activity (PA) for children and young people living with and beyond cancer. Design and main outcome measures: A systematic review and narrative synthesis was conducted on the evidence on PA interventions for children and young people (up to 30 years of age) living with and beyond cancer using a social ecological framework. Results: Out of 12 studies, 8 were shown to change PA. Intervention components included (1) behavioural (Instruction on how to perform the behaviour, credible source, behavioural demonstration and rehearsal), (2) cognitive-emotional (targeting attitude, perceived behavioural control, intentions, resilience and achievement) (3) socio-cultural (family and peer support for PA), (4) environmental (providing access to resources, environmental restructuring, safety), (5) demographic (child, adolescent, young adult or mixed) and (6) medical (tailored exercise depending on age and cancer stage). Conclusions: Interventions designed to increase physical activity participation and adherence during and beyond cancer treatment for young people should integrate psychosocial (behavioural, cognitive-emotional, social), environmental and medical intervention components. Our conceptual model can be used to inform the development of interventions and guides future research objectives and priorities.

A Multi-Modal Family Peer Support-Based Program to Improve Quality of Life among Pediatric Brain Tumor Patients: A Mixed-Methods Pilot Study

Background: Pediatric brain tumor (PBT) survivors and their families are at risk for diminished psychosocial and quality of life outcomes. Community-based programs that leverage peer support in the context of integrative modalities such as traditional Chinese medicine (TCM) represent a promising avenue for meeting the multidimensional needs of survivors and their families. Methods: Parents and children were enrolled in a 12-week program that included weekly group TCM, a moderated private Facebook support group designed through social support and modeling theory, and weekly parent-only health behavior education and yoga. Process measures and quantitative and qualitative survey data was collected to gauge participant adherence, acceptability, and satisfaction, as well as exploratory outcomes. Results: Eleven parents completed surveys at all time points. Six of nine families attended at least 80% of the group TCM sessions, and eight of nine families interacted in the Facebook support group at least five days a week. Parents reported high levels of satisfaction and perceived benefits for the program. Baseline emotional distress, health behaviors, and QoL measurements improved during the three-month intervention. Qualitative data indicated parents perceived both in-person and the Facebook group peer support contributed to the benefits of the program. Conclusion: This feasibility study demonstrated that a multimodal peer support-based intervention that included in-person and online group interaction is feasible and acceptable to parents of pediatric brain tumor patients. Further research on interventions for caregivers that include in-person and online group-based peer support is warranted, with the goal of exploring similar outcomes in other childhood cancer diagnoses.

The health behaviour status of teenage and young adult cancer patients and survivors in the United Kingdom

PURPOSE

The primary aim of this study was to investigate the health behaviour status of teenage and young adult (TYA) cancer patients and survivors; the secondary aim was to determine if TYA cancer patients and survivors health behaviour differs to general population controls.

METHODS

Two hundred sixty-seven young people with cancer (n =83 cancer patients receiving active treatment: n =174 cancer survivors, 57.1% >1 year since treatment completion) and 321 controls completed a health and lifestyle questionnaire which included validated measures of physical activity (PA) (Godin Leisure Time Exercise Questionnaire), diet (Dietary Instrument for Nutrition Education, DINE), smoking status, and alcohol consumption (AUDIT-C).

RESULTS

General population controls and cancer survivors were more likely to meet current (PA) recommendations (p <0.001) than TYA cancer patients undergoing treatment (54.8% vs 52.3% vs 30.1%, respectively). Less than 40% of young people with cancer and controls met fat intake, sugar intake, fibre intake or current fruit and vegetable recommendations. TYA cancer survivors were more likely to report binge drinking than controls (OR=3.26, 95% CI 2.12-5.02, p <0.001). Very few young people with in the study were current smokers. The majority of TYA cancer patients and survivors reported a desire to make positive changes to their health behaviour.

CONCLUSION

Consideration should be given to whether existing health behaviour change interventions which have demonstrated positive effects among the general TYA population could be adapted for young people with cancer.

Representations of cancer recurrence risk, recurrence worry, and health-protective behaviours: an elaborated, systematic review

An expanded Common-Sense Model (CSM) contextualised to the self-regulation of cancer recurrence risk identifies risk representational attributes and recurrence worry as primary processes motivating protective behaviours in cancer survivors. A systematic review examined evidence for CSM hypotheses regarding how these processes influence diet and physical activity (PA) among survivors. A research agenda is outlined and used to evaluate the evidence base. Common databases were searched for eligible, peer-reviewed, English language reports, yielding 18 studies quantitatively testing hypothesised relationships among representations of prior cancer, recurrence risk representations, recurrence worry, and diet and PA. The findings provide promising, but mixed and limited evidence for some of the hypothesised associations of specific risk recurrence attributes with recurrence worry, and risk recurrence attributes and recurrence worry with diet and PA. Findings support the distinction of recurrence risk representations and illness representations of the prior cancer, with each showing different relationships with recurrence worry and behaviours. We discuss the status of the evidence base in relation to assessment, design, and analysis priorities and propose strategies that can yield more sensitive, rigorous tests of the CSM for cancer recurrence risk as applied to diet and PA.

Dietary intake and diet quality in children receiving treatment for cancer

This narrative synthesis aims to examine the dietary intake, diet quality, and dietary preferences of pediatric cancer patients during cancer treatment. Thirteen studies were eligible for review. Studies mostly investigated nutrient intake, with 7 reporting on children's food intake. There was consensus among studies, which reported suboptimal fruit and vegetable intake and a preference for savory, carbohydrate-based foods. Results suggest that pediatric cancer patients consume a limited variety of foods, with a high intake of noncore foods. Future research should aim to examine dietary food data against dietary guidelines to assess adequacy and variety within core food groups.

How physically active do Australian and New Zealander childhood cancer survivors perceive themselves? A report from the ANZCHOG survivorship study

PURPOSE

Childhood cancer survivors are at risk of treatment late-effects. Physical activity represents a necessary complementary therapy and modifiable risk-factor across all ages for many cardio-metabolic late-effects. This study assessed perceived physical activity in Australian and New Zealander childhood cancer survivors.

METHODS

We recruited parents of survivors aged <16 years, and adult survivors of childhood cancer aged ≥16 years, ≥5 years since diagnosis, with age-matched controls for comparison. We compared perceived moderate-vigorous physical activity between survivors and controls, using regression to identify associations with physical activity.

RESULTS

We recruited 914 participants (570 childhood cancer survivors and 344 age-matched controls). Parents of survivors perceived more moderate-vigorous physical activity than child controls (248 ± 218, 95% Confidence Interval (CI) = 218-280 vs 185 ± 214 min/week, 95% CI = 144-225, p = 0.036), with no perceived difference between adult survivors and controls (125 ± 152, 95% CI = 108-140 vs 160 ± 201 min/week, 95% CI = 132-187, p = 0.477). Twenty-seven percent of child survivors (vs. 14.5% controls) and 30% of adult survivors (vs. 39.4% controls) met recommendations. Adult survivors who received radiotherapy (OR = 0.585, 95% CI = 0.343-0.995, p = 0.048) or not completed university (OR = 1.808, 95% CI = 1.071-3.053, p = 0.027) were less likely to meet recommendations.

CONCLUSIONS

Over two-thirds of Australian and New Zealander childhood cancer survivors across all ages are perceived to not meet physical activity recommendations. Adult survivors who had radiotherapy or did not complete university appeared at-risk for low physical activity.

PRACTICAL IMPLICATIONS

Physical activity is important for everyone, but critical among childhood cancer survivors due to increased late cardio-metabolic risks. Monitoring survivors' perceived but also objectively measured physical activity as complementary to routine care is warranted, to provide education and motivate survivors to take control of their health.

Physical activity and fitness among pediatric cancer survivors: a meta-analysis of observational studies

PURPOSE

The number of pediatric cancer survivors has increased dramatically over recent decades. Prior studies involving pediatric cancer survivors have reported reduced physical activity and fitness levels. Thus, the aim of this meta-analysis was to synthesize previous findings on physical activity and fitness levels of pediatric cancer survivors, who had completed cancer treatment and are in complete remission compared with age-matched, non-athletic healthy controls with no history of cancer diagnosis.

METHODS

Three electronic databases (PubMed, Web of Science, and EBSCO) were searched using a combination of 24 terms. Observational studies examining the post-treatment physical activity and/or fitness levels of pediatric cancer survivors compared with that of non-cancer controls and published in peer-reviewed, English-language journals before August 22, 2018 were eligible. Random-effect models were used in Comprehensive Meta-Analysis software for effect-size estimations of eight studies for physical activity and eight for fitness.

RESULTS

The studies included a total sample of 2628; 1413 pediatric cancer survivors and 1215 non-cancer controls. Both physical activity and fitness were significantly lower in childhood cancer survivors than in non-cancer controls (g = - 0.889; 95% confidence interval [CI] = - 1.648 - 0.130; p = 0.022) and (g = - 1.435; 95% CI = - 2.615 - 0.225; p = 0.017), respectively, with high heterogeneity.

CONCLUSIONS

Pediatric cancer sequelae and its treatment may limit participation in physical activity and fitness activities by survivors of pediatric cancer. Accentuating the need to incorporate physical activity and fitness into treatment protocols and post-treatment recommendations may improve pediatric cancer survivors' health and well-being.

Future health of AYA survivors

Adolescent and young adult (AYA) oncology patients (ages 15-39) have been identified as a group with healthcare disparities including gaps and challenges in diagnosis, access to care, research, clinical trial participation, and cure rates. Like other patient groups with cancer or other chronic illnesses, disparities can lead to poor future health and outcomes, which is a well-recognized concern within the AYA population. Cancer is the leading disease-related cause of death in this age range. Numerous interested groups including the National Cancer Institute have met to address the research and cancer care needs of AYAs. This review highlights how these gaps in care during and after treatment can affect future health of this population of patients. Access to care, models of survivorship care, and lack of provider education are discussed. Survivorship care and use of guidelines, and promotion of psychosocial support and health behaviors during treatment and beyond are essential to optimizing future health of AYA patients.

Trajectories of health behaviors across early childhood cancer survivorship

OBJECTIVE

The majority of childhood cancer survivors develop at least one late effect subsequent to treatment (eg, cardiovascular disease and obesity). Consistent engagement in recommended health behaviors may mitigate some of these conditions. Researchers have identified early survivorship as a teachable moment, yet few studies have examined positive health behaviors during this period.

METHODS

Families of children with cancer (ages 5-17) were initially recruited following a diagnosis or relapse of cancer. Three years post diagnosis, survivors (n = 82, M_age  = 13.3, SD = 3.7) and their mothers (n = 103, M_age  = 41.1, SD = 7.6) completed a questionnaire assessing exercise, dietary, and sleep patterns among survivors. A follow-up assessment was conducted 2 years later. Mixed models tested change in health behavior over time.

RESULTS

At 3- and 5-year post diagnosis, mother and self-report indicated that few survivors engaged in appropriate levels of low-intensity exercise, fruit/vegetable intake, and dairy consumption. However, most survivors engaged in recommended levels of high intensity exercise, fast food restriction, and sleep. Health behaviors remained stable over time, except for mother report of sleep duration, which decreased (b = -0.6, P < 0.001). Brain tumor diagnosis predicted a larger decrease in self-report of sleep duration compared with other diagnoses (P = 0.04). Income predicted fast food intake such that higher income was associated with decreased intake over time, whereas lower income was associated with increased intake (P = 0.04).

CONCLUSIONS

During early survivorship, several health behaviors fell short of expectations for exercise and diet and did not improve upon reaching 5-year post diagnosis. Providers should evaluate survivors' health behaviors, including sleep, early and often, intervening when necessary.

Design and Rationale for a Parent-Led Intervention to Increase Fruit and Vegetable Intake in Young Childhood Cancer Survivors (Reboot): Protocol for a Pilot Study

BACKGROUND

Poor dietary habits are common among childhood cancer survivors, despite increasing their risk of cardio metabolic complications after cancer treatment. Here, we describe the design and rationale for a pilot telephone-based, parent-led intervention aimed at increasing fruit and vegetable intake in young cancer survivors (Reboot).

OBJECTIVE

This pilot study aims to assess the feasibility and acceptability of delivering evidence-based telephone support to parents of childhood cancer survivors. A secondary aim includes assessing the effect of Reboot on improving childhood cancer survivors' dietary quality by increasing child fruit and vegetable intake and variety and its contribution to overall nutrient intake.

METHODS

We aim to recruit parents of 15 young cancer survivors aged 2 to 12 years who have completed cancer treatment less than five years ago. The intervention comprises of 4 weekly 45-minute telephone sessions led by a health professional and one booster session 6 weeks later. Sessions address the effects of cancer treatment on children's diets, recommended fruit and vegetable intake for children, and evidence-based strategies to promote the consumption of fruit and vegetables as well as to manage fussy eating.

RESULTS

Reboot is based on an existing, evidence-based parent nutrition intervention and modified for childhood cancer survivors following extensive collaboration with experts in the field. Primary outcomes of feasibility and acceptability will be measured by the number of participants who complete all five sessions, average session length (minutes), length between sessions (days) and parent Likert ratings of the usefulness and impact of the intervention collected after the booster session. Of the 15 participants we aim to recruit, 3 have completed the intervention, 1 declined to participate, 11 are actively completing the intervention and 2 participants are providing written consent. The remaining 3 participants will be recruited via telephone follow-up calls. The intervention is due to be completed by July 2018.

CONCLUSIONS

Reboot aims to support healthy dietary behaviors in childhood cancer survivors who are at increased risk of developing serious cardiometabolic complications after their cancer treatment. Results will inform the development and implementation of future evidence-based dietary interventions delivered to childhood cancer survivors, particularly those living in rural and remote areas.

REGISTERED REPORT IDENTIFIER

RR1-10.2196/9252.

Research- and Practice-Based Nutrition Education and Cooking Workshops in Pediatric Oncology: Protocol for Implementation and Development of Curriculum

BACKGROUND

Progresses in childhood cancer treatment, diagnosis, and management have resulted in childhood cancer survival rates of over 80%. However, this therapeutic success comes with a heavy price: two-thirds of childhood cancer survivors will be affected by further complications, including cardiovascular and metabolic diseases. Adequate nutrition during cancer treatment is essential to ensure the child's optimal development, improve tolerance to treatments, and can contribute to lower the risk of developing cardiometabolic diseases. Side effects of cancer treatments can negatively impact children's nutritional intake and eating behaviors. Involving the families of childhood cancer patients in educational workshops could be a promising avenue to promote healthy eating during and after cancer treatment.

OBJECTIVE

The objectives of this study were to develop, validate, and implement a family-based nutrition education and cooking workshop curriculum in a pediatric oncology setting that addresses the nutritional issues encountered during treatments while promoting the adoption of healthy eating habits for the prevention of long-term cardiometabolic effects.

METHODS

The workshops were developed and validated following an 8-step iterative process, including a review of the literature and consultations with a steering committee. An evaluation tool was also developed. A nonrandomized study protocol was elaborated to implement the workshops and measure their impact. The themes of the 6 research- and practice-based lessons are as follows: meal fortification during cancer treatment, changes in taste during cancer therapy and their impact on children, adapting diet to eating-related side effects of treatments, nutritional support during cancer treatment, Mediterranean diet and health, and planning quick and economic meals. The validation process included consultations with the institution's clinical nutrition professionals. Self-administered post questionnaires were developed according to the content of each workshop to measure short-term outcomes, namely, participants' perception of knowledge acquisition, behavioral intention, and satisfaction. Medium-term outcomes that will be evaluated are participants' anthropometric profile, quality of the diet, and circulating biomarkers of metabolic health.

RESULTS

The project was funded in 2016 and enrollment will be completed in 2021. Data analysis is currently under way and the first results are expected to be submitted for publication in 2019.

CONCLUSIONS

This research- and practice-based nutrition education and cooking demonstration curriculum could be a valuable complement to a multidisciplinary lifestyle intervention for the prevention of long-term cardiometabolic complications in childhood cancer.

A Fitbit and Facebook mHealth intervention for promoting physical activity among adolescent and young adult childhood cancer survivors: A pilot study

BACKGROUND

Physical activity (PA) may be important for preventing chronic diseases for adolescent and young adult (AYA) childhood cancer survivors. Randomized controlled trials (RCTs) of PA interventions for AYA survivors are sparse, but necessary to determine effective programs for increasing PA among this population. Thus, we conducted a pilot RCT, testing the feasibility of a mobile health (mHealth) intervention to promote PA among AYA survivors.

PROCEDURE

We recruited 14- to 18-year-olds who were ≥1-year post cancer therapy from Seattle Children's Hospital. The 10-week intervention consisted of a wearable PA-tracking device (Fitbit Flex) and a peer-based virtual support group (Facebook group). Research staff helped set step goals and awarded badges weekly. Controls received usual care. Baseline assessments occurred before randomization and follow-up assessments occurred during weeks 8-10 of the intervention period. Feasibility criteria are defined below. Qualitative interviews assessed acceptability. Exploratory outcomes included PA, quality of life, and motivation for PA.

RESULTS

All feasibility criteria were met: we recruited 60 survivors, intervention participants wore the Fitbit on the majority (71.5%) of intervention days, and ≥90% of all participants completed questionnaires. Qualitative data confirmed intervention acceptability. Exploratory analyses found no significant adjusted group differences for change in moderate-to-vigorous PA (4.4 vs. 5.0 min/day; P = 0.92) or sedentary time (-4.5 vs. 1.0 min/day; P = 0.73), comparing intervention subjects to controls. Some modest differences were found for select subscales of quality of life and motivation for PA.

CONCLUSIONS

This mHealth PA intervention was feasible and acceptable to AYA childhood cancer survivors and warrants a fully powered RCT.

Factors associated with physical activity among adolescent and young adult survivors of early childhood cancer: A report from the childhood cancer survivor study (CCSS)

OBJECTIVE

To evaluate concurrent and longitudinal associations between psychosocial functioning and physical activity in adolescent and young adult survivors of early childhood cancer.

METHODS

Adolescent survivors of early childhood cancer (diagnosed before age four) participating in the Childhood Cancer Survivor Study completed the Coping Health and Illness Profile-Adolescent Edition (CHIP-AE; n = 303; mean age at survey: 17.6 years). A subset of these survivors (n = 248) completed a follow-up survey an average of 6.0 years later (range: 4-10). Logistic regression identified associations between psychosocial functioning in adolescence and physical activity levels in adolescence and young adulthood.

RESULTS

Survivors reported low physical activity as adolescents (46.1% scored below CHIP-AE cut-point) and young adults (40.8% below Centers for Disease Control guidelines). Poor physical activity during adolescence was associated with female sex (OR = 2.06, 95% CI, 1.18-3.68), parents with less than a college education (OR = 1.91, 95% CI, 1.11-3.32), previous treatment with cranial radiation (OR = 3.35, 95% CI, 1.69-6.88), TV time (OR = 1.77, 95% CI, 1.00-3.14), and limitations of activity due to health or mobility restrictions (OR = 8.28, 95% CI, 2.87-30.34). Poor diet (OR = 1.84, 95% CI, 1.05-3.26) and low self-esteem (OR = 1.80, 95% CI, 0.99-3.31) during adolescence were associated with lower odds of meeting Centers for Disease Control physical activity guidelines in young adulthood.

CONCLUSION

These findings provide targets for future interventional studies to improve physical activity in this high-risk population.

Lifestyle advice provision to teenage and young adult cancer patients: the perspective of health professionals in the UK

PURPOSE

Health professionals are an important source of information for teenage and young adult (TYA) cancer patients. However, little is known about health professionals' provision of lifestyle advice to young people with cancer who are in their care.

METHODS

An online survey was distributed to health professionals within the UK who identified themselves as working with TYA cancer patients. Health professional awareness of lifestyle guidance, provision of lifestyle advice to young people and views on lifestyle information format and delivery were explored.

RESULTS

Ninety-five health professionals (44% nurses; 28% allied health professionals; 17% physicians) completed the survey. The majority (72%) of respondents were aware of some lifestyle guidance for cancer patients. However, less than half of TYA health professionals (46%) were able to successfully recall the source of the guidelines and less than a third reported proving specific advice to the majority of their patients on weight management, smoking, alcohol consumption and sun safety. Many health professionals (38%) felt that they were not the right person to provide advice and cited lack of resources as a key barrier to advice provision. The majority (95%) reported being interested in a resource containing relevant lifestyle information that could be given to young people with cancer.

CONCLUSIONS

TYA health professionals' awareness of lifestyle guidance and provision of advice regarding health behaviour is sub-optimal. Clear and comprehensive guidance written specifically for TYA health professionals could overcome the reported barriers and improve professionals' confidence in addressing and providing advice on lifestyle to young people with cancer.

Healthy cooking classes at a children's cancer hospital and patient/survivor summer camps: initial reactions and feasibility

OBJECTIVE

Childhood cancer survivors (CCS) have been shown to practise suboptimal dietary intake and may benefit from nutrition interventions during and after treatment. Cooking classes have become popular for encouraging healthy eating behaviours in community-based programming and academic research; however, literature on teaching cooking classes in CCS is limited. The purpose of the present study was to address the development and implementation of classes for CCS based on a recently developed framework of healthy cooking behaviour.

DESIGN

A conceptual framework was developed from a systematic literature review and used to guide healthy cooking classes for CCS in different settings.

SETTING

One paediatric cancer hospital inpatient unit, one paediatric cancer in-hospital camp programme and two off-site paediatric cancer summer camp programmes.

SUBJECTS

One hundred and eighty-nine CCS of varying ages and thirteen parents of CCS.

RESULTS

Seventeen classes were taught at camps and seven classes in the hospital inpatient unit. Healthy cooking classes based on the conceptual framework are feasible and were well received by CCS.

CONCLUSIONS

Cooking classes for CCS, both at the hospital and at camp, reinforced the principles of the conceptual framework. Future trials should assess the dietary and anthropometric impact of evidence-based healthy cooking classes in CCS.

Sleep Disruption in Pediatric Cancer Survivors: Conceptual Framework and Opportunities for Clinical Assessment and Behavioral Treatment

Sleep disruption is a commonly reported consequence of cancer and its treatment in pediatric patients and survivors. This review summarizes common sleep concerns in this population and introduces a multidimensional framework of risk factors specific to childhood cancer that may interact to develop and maintain disrupted sleep. Based on the extant literature, parameters of the cancer and its treatment, physical and social environmental conditions both during and after treatment, changes to family behavior and norms, psychological factors and traumatic stress, and reduced physical activity are hypothesized to be the most pertinent risk factors for disrupted sleep in this population. Potential clinical assessment strategies and behavioral interventions relevant to these considerations are discussed, with reference to the behavioral model of insomnia. The review concludes by offering directions for research and clinical practice, including developing and testing comprehensive assessment tools, intervention effectiveness studies in both oncology and primary care clinics, and efforts to increase patient-provider communication about sleep in pediatric oncology.

Developing a Web-Based Weight Management Program for Childhood Cancer Survivors: Rationale and Methods

Background

Due to advances in the field of oncology, survival rates for children with cancer have improved significantly. However, these childhood cancer survivors are at a higher risk for obesity and cardiovascular diseases and for developing these conditions at an earlier age.

Objective

In this paper, we describe the rationale, conceptual framework, development process, novel components, and delivery plan of a behavioral intervention program for preventing unhealthy weight gain in survivors of childhood acute lymphoblastic leukemia (ALL).

Methods

A Web-based program, the Healthy Eating and Active Living (HEAL) program, was designed by a multidisciplinary team of researchers who first identified behaviors that are appropriate targets for weight management in childhood ALL survivors and subsequently developed the intervention components, following core behavioral change strategies grounded in social cognitive and self-determination theories.

Results

The Web-based HEAL curriculum has 12 weekly self-guided sessions to increase parents’ awareness of the potential impact of cancer treatment on weight and lifestyle habits and the importance of weight management in survivors’ long-term health. It empowers parents with knowledge and skills on parenting, nutrition, and physical activity to help them facilitate healthy eating and active living soon after the child completes intensive cancer treatment. Based on social cognitive theory, the program is designed to increase behavioral skills (goal-setting, self-monitoring, and problem-solving) and self-efficacy and to provide positive reinforcement to sustain behavioral change.

Conclusions

Lifestyle interventions are a priority for preventing the early onset of obesity and cardiovascular risk factors in childhood cancer survivors. Intervention programs need to meet survivors’ targeted behavioral needs, address specific barriers, and capture a sensitive window for behavioral change. In addition, they should be convenient, cost-effective and scalable. Future studies are needed to evaluate the feasibility of introducing weight management early in cancer care and the efficacy of early weight management on survivors’ health outcomes.