Introduction
Plasma cell disorders (PCD) are a group of conditions characterized by disproportionate proliferation of a single clone of B lymphocytes. Multiple myeloma (MM) is a malignant type of PCD. Improvements in MM survival have led patients and physicians to pursue strategies to improve quality of life for those living longer with this disease. Bone disease and instability associated with MM have made physicians reluctant to recommend physical activity (PA) to this patient population. The goal of this study was to examine the relationship between PA and physical and psychosocial patient-reported outcomes (PRO) in patients with MM and precursor conditions.
Methods
We employed a cross-sectional study design. Questionnaires on PA, demographics, fatigue, distress, and other aspects of quality of life were posted on the HealthTree® Cure Hub website, a patient portal through which individuals with MM and related disorders obtain support, track labs and other information about their diseases, and participate in research.
Results
A total of 794 individuals, including 664 with MM, are included in the current analysis. We observed potential inverse associations between PA and poor quality of life, including problems with sleep, fatigue, neuropathy, distress, and several psychosocial states. On average, patients reported that their PA levels have declined since diagnosis and that they would like to be even more active in the future than they were prior to their diagnosis.
Conclusions
In our cross-sectional study, regular physical activity was associated with multiple quality-of-life indicators and other PROs, including better sleep and less fatigue, neuropathy, and distress. The findings of this study can help guide the design of prospective studies of the role of PA in MM survivorship.