Functional capacity and muscular abnormalities in subclinical hypothyroidism.

Background: Neuromuscular abnormalities and low exercise tolerance are frequently observed in overt hypothyroidism, but it remains controversial if they can also occur in subclinical hypothyroidism (sHT). The aim of this study is to evaluate neuromuscular symptoms, muscle strength, and exercise capacity in sHT, compared with healthy euthyroid individuals.

Methods: A cross-sectional study was performed with 44 sHT and 24 euthyroid outpatients from a university hospital.