4.1. Study Group
MM
MYELOMA
The study group consisted of 30 patients with MM recruited among the patients of the Hematology Clinic at the Jagiellonian University Medical College in Krakow. The patients were randomly assigned to one of two groups: the Nordic walking training group (NW, n = 15, including ♂ = 7, ♀ = 8) and the control group, which has not been subjected to training intervention (CG, n = 15, including ♂ = 8, ♀ = 7). For random assignment to groups, a permuted block randomization procedure (ratio 1:1) was used. Each participant drew an opaque envelope containing an assignment for one of the groups. CG patients were asked not to change their physical activity habits during the project period. Patient flow diagram is shown in Each patient received a daily supplementation of 2000 U of vitamin D3 and 1000–1500 mg of calcium carbonate. Additionally, in accordance with the prevailing guidelines of the International Myeloma Working Group [Inclusion in the study was based on a detailed medical interview and meeting the inclusion criteria (