Results
pain, musculoskeletal disorders
MUSCULOSKELETAL DISORDERS
Results on demographic characteristics showed that the majority of the participants were males (67.2%) and in the age range of 60–74 years (82.8%). The mean age of older adults in intervention and control groups was 68.45 (SD = 5.38) and 69.17 (SD = 5.86), respectively. Table 
Frequency distribution of demographic characteristics of the elderly residing in nursing homes in the intervention and control groupP = .594X2 = 16.93P = .780X2 = 0.078P = .259 F = 3.960P = 1.000X2 = 0.000P = .611 F = 1.957Results of comparing MSDs in the intervention and control groups before and after intervention are shown in Table 
Percentage of change in musculoskeletal disorders of the elderly in the intervention and control groups before and after the interventionNote. P-value = Statistical estimation; *p < .05, **p < .001The above table shows that the prevalence of MSDs after the intervention decreased by 11.89% in the intervention group, which was statistically significant in some areas (neck (P = .000), pelvis (P = .016), and left knee (P = .002)) (%Δ = -34.68, p < .05). However, the prevalence of MSDs after the intervention in the control group was not significant (P = 1.000). Since there was a significant difference in the prevalence of MSD in the neck, left knee, and pelvis areas before and after the intervention, for this reason, the results of the above table focus on the analysis of the results in these three areas.The results regarding the frequency distribution and comparison of the pain intensity of musculoskeletal disorders in the intervention and control groups before and after the intervention are shown in Table 
Frequency distribution and comparison of pain intensity of musculoskeletal disorders in the intervention and control groups before and after the interventionMild pain(1–3)P = .733Mean difference = 0.49Moderate pain(4–7)Mild pain(1–3)P = .000**Mean difference = -2.27Moderate pain(4–7)P = .000Mean difference = -2.76P = 1.000Mean difference = 0Note. *p < .05, **p < .001The above table shows that, significantly, the mean score of pain intensity in the intervention group has decreased after the intervention (%Δ = -68.34, p < .001).