Toyoda H, et al. - Researchers performed this cross-sectional observational study including 230 consecutive patients with spinal disorders who visited their outpatient clinic (age range 65–92 years) to evaluate the association between back muscle strength, trunk muscle mass, and sarcopenia-related parameters in these patients. Significant correlation of back muscle strength was noted with trunk muscle mass, handgrip strength, and gait speed. Sarcopenia, dynapenia, and normal stages were noted in 16.4%, 26.7%, and 56.9% for males, and 23.7%, 50.9%, and 25.4% for females, respectively. Females displayed a significantly higher prevalence of dynapenia than males. The normal group had back muscle strength significantly greater than that observed in the sarcopenic and dynapenic groups.