Peer-reviewed article
Feasibility of exercise training to address corticosteroid-induced changes in adolescents aged 10+ with lymphoma or leukemia during the first eight weeks of treatment: a pilot study
Vera Blümer, S. Erhard, Nicola Schanda, Aleksandar Tomaskovic, Mirjam Dieckelmann ·
Summary
Written by AI, not yet AICS's view · claude-sonnet-5-5This pilot randomised trial tested whether an 8-week exercise programme, plus one nutrition counselling session, could be delivered to adolescents aged 10 to 17 with newly diagnosed leukemia or lymphoma. The aim was to counter the effects of high-dose corticosteroids in the first weeks of treatment. Only six participants completed the trial, two of them in the exercise group. Consent, training attendance and complete measurements all fell short of the 80% targets the team had set. The trial was not continued, and the authors recommend a more adaptive design for future studies.
Key points
- Consent rate was 67%, training adherence 51% and complete measurements 70%, all below the prespecified 80%.
- Six participants completed the trial, two of whom were in the intervention group.
- At baseline and during the intervention, physical capacity and functioning were below healthy norms. Hand grip strength changed by Z = -1.5 ± 1.4 and cycle ergometry peak power by Z = -3.8 ± 1.2.
- Quadriceps muscle and abdominal fat thickness were mostly normal, while metabolic states were erratic and unfavourable.
- Limited feasibility opposed moving to a definitive trial; the authors advise changes such as a more adaptive trial design.
Limitations
The sample was very small and results varied widely, so the findings cannot be generalised. No formal test of the intervention's effects was done, so the study cannot say whether exercise protects against corticosteroid-induced changes.
Abstract
Introduction Children and adolescents with hematological malignancies are at risk of adverse side effects from high-dose corticosteroid treatment during induction therapy. In this context, exercise and nutrition interventions are promising, physiologically grounded approaches but their feasibility and practical delivery during early intensive therapy remain unclear. Therefore, this prospective pilot randomized controlled trial was designed to evaluate the feasibility and preliminary effects of an exercise intervention and nutrition consultation in newly diagnosed patients. Methods Participants with leukemia or lymphoma, aged 10–17 years, were allocated to an 8-week exercise or sham control intervention (stratified randomization, 1:1 ratio, parallel groups) plus one-time nutrition counseling. Feasibility outcomes included recruitment, retention, adherence, safety, completion of assessments, and subjective feedback from patients and personnel involved in the study. Furthermore, repeated measures of physical performance, functional capacity, metabolic health, and body composition were used to explore baseline status and changes over time, after four and eight weeks of therapy. Results Six participants, two of which were allocated to the intervention group, completed the trial. Overall rates of consent (67%), training adherence (51%) and complete measures (70%) did not attain prespecified criteria (≥80%). Despite considerable variability, pilot data indicated reduced physical capacity and functioning inferior to healthy norms at baseline and over the course of the intervention including hand grip strength (Δ Z ± SD = −1.5 ± 1.4), cardiorespiratory fitness (steep ramp cycle ergometry peak power; Δ Z ± SD = −3.8 ± 1.2), and lower extremity muscle strength (5-times sit-to-stand test; Δ Z ± SD = 2.3 ± 2.0), while having mostly normal quadriceps muscle and abdominal fat thickness and erratic unfavorable metabolic states. No formal exploration of intervention effects was performed. Discussion Limited feasibility opposed continuation to a definite trial. Respective challenges observed may reflect particularities of early treatment, thus, substantial changes are advised for future protocols (e.g., towards a more adaptive trial design). Besides their limited generalizability and variability, pilot data suggests that adolescents undergoing induction therapy can experience intermittent deconditioning, while other outcomes were inconclusive. Thus, future exercise interventions should account for various objections to exercise participation, heterogeneous medical conditions, and potentially impaired physical capacity and functioning, especially during early therapy. Clinical Trial Registration https://drks.de/search/de/trial/DRKS00032259 , identifier DRKS00032259
Findings the Hub has extracted
Each claim below is labelled by its type of design and links back to this report.
- Intervention
- 8-week exercise training during the first weeks of treatment, plus one-time nutrition counselling for all participants, compared with a sham control intervention
- Population
- Newly diagnosed patients with leukemia or lymphoma aged 10 to 17 years; six completed the trial (two in the intervention group)
Key finding
Feasibility criteria were not met: consent 67%, training adherence 51%, complete measures 70% (target ≥80%).
Blümer et al. · OpenAlex - Early Childhood · 7 Oct 2026