Open AccessSubclinical Hypothyroidism has Little Influences on Muscle Mass or Strength in Elderly People
Author(s) -
Min Kyong Moon,
You Jin Lee,
Sung Hee Choi,
Soo Lim,
Eun Joo Yang,
JaeYoung Lim,
Nam–Jong Paik,
Ki Woong Kim,
Kyong Soo Park,
Hak Chul Jang,
Bo Youn Cho,
Young Joo Park
Publication year - 2010
Publication title -
journal of korean medical science/journal of korean medical science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 66
eISSN - 1598-6357
pISSN - 1011-8934
DOI - 10.3346/jkms.2010.25.8.1176
Subject(s) - subclinical infection , sarcopenia , medicine , euthyroid , thyroid , endocrinology , population , hormone , physiology , environmental health
Sarcopenia, the age-related decline in muscle mass, affects the muscle strength and muscle quality, and these changes decrease functional capacity. The prevalence of thyroid dysfunction increases with age, and changes in thyroid hormone level lead to neuromuscular deficits. We investigated the effects of subclinical hypothyroidism on the muscle mass, strength or quality in elderly people. One thousand one hundred eighteen subjects aged > or = 65 yr were randomly selected from a local population and classified into a euthyroid (280 men and 358 women), subclinically hypothyroid (61 men and 75 women), or overtly hypothyroid (7 men and 16 women) group. Although women with subclinical hypothyroidism had a higher prevalence of sarcopenia, defined according to the ratio of appendicular skeletal muscle mass to the square of height, muscle mass, strength or quality did not differ in relation to thyroid status in men or in women. Multivariate analysis including age, diabetes, hypertension, acute coronary event, alcohol, smoking, presence of pain, physical activity score, and lipid profile, showed that thyroid-stimulating hormone level was not associated with muscle mass, strength or quality. In conclusion, subclinical hypothyroidism has little influences on muscle mass, strength or quality, and may not be associated with sarcopenia.