Tyler Ketterl

and 8 more

BACKGROUND Adolescent and young adult (AYA) hematopoietic cell transplantation (HCT) survivors are at increased risk of metabolic syndrome and lean body mass (LBM) deficits. Resistance training (RT) is a potential intervention to improve LBM, metabolic fitness and reduce risk of cardiovascular disease. PROCEDURE Eligible participants ages 13-39 years, 80-120 days post-HCT, transfusion independent, and prednisone dose <1 mg/kg/day were approached. Baseline assessments of body composition (DXA), anthropometrics and strength testing were completed and participants were taught a 12-week, home-based RT intervention with weekly remote coaching. Follow-up assessments were at day +200 (FU1) and +365 post-HCT (FU2). Feasibility targets were 1) 60% enrollment of approached patients, 2) 80% completion of weekly phone calls and 3) 80% completion of the RT intervention and FU1 assessments. Acceptability was measured by recommendation of the intervention to an AYA HCT survivor. RESULTS Twenty of 31 (65%) eligible AYAs enrolled. Two participants failed to complete baseline measurements (1=scheduling barriers, 1=passive refusal) and 4 participants who completed baseline assessments did not receive the intervention (2=medical reasons, 2=no longer interested). Of the 13 who received the intervention, 11 (85%) completed FU1 and completed 88.5% of coaching calls. LBM (kg) increased or remained unchanged in 9/9 participants with complete body composition data at FU1 (mean 1.1 kg; 95%CI: 0.4,1.9). All participants who completed FU1 reported they would recommend the intervention to an AYA HCT survivor. CONCLUSIONS A home-based RT intervention in AYA HCT survivors early post HCT is both feasible and acceptable and may maintain or increase LBM.