Subclinical Hyperthyroidism 101: Lower TSH Causes Decreased Muscle Strength in Elderly.

Subclinical Hyperthyroidism 101: Lower TSH Causes Decreased Muscle Strength in Elderly.

1. Subclinical hyperthyroid causes muscle weakness.
2. What about low TSH in the normal range.
3. As we age TSH values need to be adjusted toward the higher end of the normal range.
4. 1200 men and women were studied by hand grip.
5. Lower TSH equaled a 5 % loss of hand grip strength.
6. Men with low muscle strength had a 22% lower TSH.
7. Risk of decreased muscle strength was 4 times higher with low end normal range TSH.
8. There was no effect in elderly females.
9. JCEM 103(11) 2018 Kim B-J et al