Sarcopenia is associated with tongue pressure in older patients with type 2 diabetes: A cross‐sectional study of the KAMOGAWA‐DM cohort study

Abstract

Aim Death as a result of pneumonia is an important issue in patients with diabetes. Tongue pressure is associated with swallowing function, which has a close association with aspiration pneumonia. However, no previous studies have shown the association between sarcopenia and tongue pressure in older patients with type 2 diabetes. Methods In the present cross‐sectional study, we investigated body composition, handgrip strength and tongue pressure. Skeletal muscle mass index (kg/m2) was defined as appendicular muscle mass / the square of the height. Sarcopenia was defined when both handgrip strength <26 kg for men and <18 kg for women, and the skeletal muscle mass index <7.0 kg/m2 for men and <5.7 kg/m2 for women existed. Results Among 144 patients (82 men, 71.4 years [SD 6.7 years]), 11.8% had sarcopenia. Tongue pressure was associated with skeletal muscle mass index and handgrip strength (r = 0.361, P < 0.001 and r = 0.387, P < 0.001, respectively, in men; and r = 0.300, P = 0.018 and r = 0.538, P < 0.001, respectively, in women). Tongue pressure was associated with the prevalence of sarcopenia after adjusting for covariates (OR 3.83, 95% CI 1.06–13.9, P = 0.041). According to the receiver operating characteristic curve analysis, the optimal cut‐off value of handgrip strength for the presence of low tongue pressure was 27.7 kg (AUC 0.70, 95% CI 0.53–0.83, sensitivity 0.78, specificity 0.64) in men and 18.3 kg (AUC 0.71, 95% CI 0.54–0.84, sensitivity 0.82, specificity 0.54) in women. Conclusions Sarcopenia, especially handgrip strength, is associated with tongue pressure in older patients with type 2 diabetes. We should consider a decrease of swallowing function when examining patients with sarcopenia. Geriatr Gerontol Int 2019; 19: 153–158.

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