TY - CHAP M1 - Book, Section TI - Hypothyroidism A1 - Goodman, Catherine A1 - Helgeson, Kevin Y1 - 2011 N1 - T2 - Exercise Prescription for Medical Conditions: Handbook for Physical Therapists AB - Hypothyroidism is a deficiency of thyroid hormones, due primarily to decreased synthesis or size of the thyroid gland. A deficiency of thyroid hormones affects multiple systems, which can result in slower metabolism, muscle weakness, advanced atherosclerosis, and slower mental functions. Individuals may have a subclinical hypothyroidism even though their thyroid hormone levels are within normal value limits.1 This condition is reversed with administration of synthetic thyroid hormones. Decreased thyroid hormone levels affect connective tissues of the cardiovascular system, resulting in decreased cardiac output, slowed heart rate, and diminished peripheral circulation.1,2 Proximal muscle weakness along with complaints of stiffness, muscle pain, and trigger points make daily activities more difficult to complete. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - fadavispt.mhmedical.com/content.aspx?aid=1133951955 ER -