Background: In order to counteract fatigue, physical activity (PA) is recommended for all stages of cancer. However, only few advanced cancer patients (ACP) are physically active. Quantitative data with high numbers of ACP reporting barriers to PA are missing. This study aimed to identify barriers to PA in ACP with tiredness/weakness and investigate their motivation towards it. Methods: Outpatients with metastatic cancer receiving cancer care at a German Cancer Center reporting moderate/severe tiredness/weakness during self-assessment (MIDOS II) were enrolled. We assessed Fatigue-(FACF-F) and Depression (PHQ8) Scores, demographics, cancer-specific parameters, motivation for PA, physical, psychological and social barriers. Results: 141 of 440 eligible patients (32.0%) with different diagnoses agreed to participate. Patients frequently reported “I feel weakened due to my tumor therapy” (n = 108; 76.6%), physical symptoms (tiredness, weakness, dyspnea, joint-problems, pain, nausea [n = 107; 75.9%]) and fatigue (n = 99; 70.2%) as barriers to PA. However, no significant group differences regarding these barriers were found between physically active and inactive patients. Social barriers were rarely chosen. Motivated patients were 5.6 times more likely to be physically active (p < 0.001), also motivation turned out to be the strongest predictor for a physically active behavior (β = 1.044; p = 0.005). Motivated attitude towards PA was predicted by fatigue (β = − 2.301; p = 0.008), clinically relevant depression (β = − 1.390, p = 0.039), knowledge about PA and quality of life (QoL) (β = 0.929; p = 0.002), PA before diagnosis (β = 0.688; p = 0.005 and Interest in exercise program (β = 0.635; p = 0.008). Conclusion: “I feel weakened due to my tumor therapy” is the most reported barrier to PA among both, physically and inactive patients. Motivation for PA is the strongest predictor of performing PA. Interest in PA, knowledge about PA/QoL and PA before diagnosis are main predictors of a motivated attitude. Absence/presence of social barriers did not associate with motivation, fatigue and depression proved to be a negative predictor. Programs including information, motivational counseling and individualized training should be offered for ACP to overcome barriers and reduce fatigue. Trial registration: German Register of Clinical Trials DRKS00012514, registration date: 30.5.2017.

Exercise therapy is a common supportive strategy in curative cancer treatment with strong evidence regarding its positive effects on, for example, cancer-related fatigue, health- related quality of life, and physical function. In the field of advanced cancer patients, knowledge about exercise as a useful supportive strategy is missing. The aim of this systematic review was to evaluate the feasibility and safety of exercise interventions as well as its effects on lowering the symptom burden. We included randomized controlled trials and nonrandomized controlled trials with advanced cancer patients receiving any type of exercise intervention. After an extensive literature search (in accordance to PRIMSA guidelines) in PubMed, Cochrane Library, and SPORTDiscus, 14 studies including 940 participants with different cancer entities were eligible. The results indicated the safety of exercise. In total, 493 participants received exercise interventions, with nine adverse events and no severe adverse events. The median recruitment rate was 68.33%, and adherence to exercise intervention was 86%. Further research with a high-quality and larger sample size is needed to clarify the potential of exercise with advanced cancer patients. Different advanced cancer entities have distinguished symptoms, and future research should construct entities-specific trial populations to figure out the best supportive exercise interventions.

Background: Pediatric cancer leads to reduced participation in exercise and only few patients comply with national physical activity recommendations. Physically inactive behavior hinders motor development and increases physical and psychological adverse effects of therapy and incidence of sequelae. Currently, there is neither nationwide coverage nor uniform level of knowledge regarding exercise promotion. The objective of the guideline is to facilitate qualified exercise interventions through standardized procedures in addition to regular physiotherapy and overall avoid physical inactivity in pediatric cancer patients.Methods: This guideline addresses the multidisciplinary treatment team and informs physiotherapists and decision‐makers in tertiary care hospitals and health insurance companies. The requirements of the Association of the Scientific Medical Societies in Germany were followed. Contents were based on best practice experience of experts, patient advocates, as well as on scientific evidence.Results: The guideline includes 11 recommendations. Recommendations 1–4 declare the relevance of implementing exercise interventions and address general framework conditions. Recommendations 5–11 focus on the design of exercise programs, prevention and safety issues, relative contraindications for specific training loads, and options to overcome barriers to exercise.Conclusion: This guideline summarizes existing and established structures and evidence in the context of movement and exercise in pediatric oncology. It takes into consideration the rights, varying needs, and characteristics of children and adolescents as well as national and international experience in this field. In the future, relevant research gaps need to be addressed by high‐quality intervention studies to provide the scientific background for a stronger evidence‐based guideline.

Objectives: Exercise interventions during and after treatment for pediatric cancer are associated with beneficial physical, psychological, and social effects. However, valid data about adverse events (AEs) of such interventions have rarely been evaluated. This retrospective study evaluates AEs that occurred during supervised oncological exercise programs for pediatric cancer patients and survivors.Methods: This Germany-wide study used a self-administered online survey focusing on general program characteristics and AEs retrospectively for 2019. The questionnaire included (a) basic data on the offered exercise program, (b) AEs with consequences (Grade 2–5) that occurred in 2019 during an exercise intervention, (c) number of Grade 1 AEs, (d) safety procedures as part of the exercise programs, and (e) possibility to give feedback and describe experience with AEs in free text.Results: Out of 26 eligible exercise programs, response rate of program leaders was 92.3% (n = 24). Representatives working for Universities (n = 6), rehabilitation clinics (n = 3), acute cancer clinics (n = 12), and activity camps (n = 3) participated. In total, 35,110 exercise interventions with varying duration were recorded for 2019. Six AEs with consequences (Grade 2–3) occurred during exercise interventions after cancer treatment resulting in an incidence of 17 per 100,000 exercise interventions (0.017%). No life-threatening consequences or death were reported and no serious AE occurred during acute cancer treatment. Grade 1 AE occurred with a frequency of 983, corresponding to an incidence of 2,800 per 100,000 interventions (2.8%). Most frequent Grade 1 AE were muscle soreness, circulatory problems, and abdominal pain. The most frequent preventive safety procedures at the institutions were regular breaks, consultations with the medical treatment team, and material selection with low injury potential.Conclusions: Supervised exercise interventions for pediatric cancer patients and survivors seem to be safe and AEs with consequences comparatively rare when compared to general childhood population data. Occurrence of grade 1 AEs was common, however, causality was probably not evident between AEs and the exercise intervention. Future research should standardize assessment of AEs in clinical practice and research, and prospectively register and evaluate AEs that occur in the context of exercise interventions in pediatric cancer patients and survivors.

The field of pediatric exercise oncology explores the relationships between physical activity (PA), including exercise, and a range of outcomes among children and adolescents affected by cancer. Although PA is safe and beneficial for this population, several important gaps in knowledge and practice remain. In this article, we describe research and innovation needs that were developed with a team of international experts and relevant literature, a series of online surveys, and an in-person meeting. Addressing these needs will contribute valuable knowledge and practice outputs to advance this field, ultimately enabling a greater number of children and adolescents affected by cancer to realize the benefits of moving more.

The diagnosis and treatment of cancer are highly stressful. Exercise therapy is often used to mitigate the adverse effects of treatment. But how good is the evidence base, and what has changed in recent years? In this narrative review, we present the current data and what it implies for the care of adults with cancer. This review is based on data from meta-analyses and systematic reviews concerning 16 relevant clinical endpoints (outcomes) of exercise therapy for cancer patients. The literature evaluated for this paper reveals that targeted exercise therapy is feasible and safe under appropriate supervision. It is highly effective for improving eight endpoints (anxiety, depression, fatigue, quality of life, physical function, secondary lymphedema after breast cancer, urinary incontinence, post-mastectomy pain syndrome in breast cancer) and may also have a beneficial effect on sleep quality, cardiotoxicity, and cognitive function. Less conclusive studies are currently available with respect to chemotherapy-induced polyneuropathy, nausea/vomiting, and bone health. There is currently insufficient data to suggest any benefit with respect to sexual function and risk factors for falling. The data shows that exercise therapy for cancer patients is safe and has manifold effects on selected clinically relevant parameters. Further studies should be performed regarding the possible utility of exercise therapy against treatment-related side effects for which the evidence is currently insufficient. On the basis of the currently available and already existing recommendations, quality-assured exercise therapy can be recommended to cancer patients suffering from a wide range of neoplastic conditions.