Hormonal response to acute exercise and change in response with exercise training

Schema will be following: HORMONE – RESPONSE TO ACUTE EXERCISE(UNTRAINED) – EFFECT OF EXERCISE TRAINING

Anterior pituitary gland

Growth hormone(GH) – increases with increasing rates of work – attenuated response at the same rate of work

Thyrotropin(TSH) – increases with increasing rates of work – no known effect

Adrenocorticotropin(ACTH) – increases with increasing rates of work and duration – attenuated response at same rate of work

Prolactin – increases with exercise – no known effect

Follicle-stimulating hormone(FSH) – small or no change – no known effect

Luteinizing hormone(LH) – small or no change – no known effect

Posterior pituitary

Antidiuretic hormone(ADH or vasopressin) – increases with increasing rates of work – attenuated response at same rate of work

Oxytocin – unknown – unknown

Thyroid

Thyroxine(T₄) and triiodothyronine(T₃) – free T₃ and T₄ increase with increasing rates of work – increased turnover of T₃ and T₄ at same rate of work

Calcitonin – unknown – unknown

Parathyroid

Parathyroid hormone(PTH or parathormone) – increases with prolonged exercise – unknown

Adrenal medulla

Epinephrine – increases with increasing rates of work, starting at about 75% of VO₂max – attenuated response at same rate of work

Norepinephrine – increases with increasing rates of work, starting at about 50% of VO₂max – attenuated response at same rate of work

Adrenal cortex

Aldosterone – increases with increasing rates of work – unchanged

Cortisol – increases only at high rates of work – slightly higher values

Pancreas

Insulin – decreases with increasing rates of work – attenuated response at same rate of work

Glucagon – increases with increasing rates of work – attenuated response at same rate of work

Kidney

Renin – increases with increasing rates of work – unchanged

Erythropoetin(EPO) – unknown – unchanged

Testes

Testosterone – small increases with exercise – resting level decreases in male runners

Ovaries

Estrogens and progesterone – small increases with exercise – resting levels might be decreased in highly trained women

“Physiology of sport and exercise”, fourth edition; Jack H. Wilmore, David L. Costill, W. Larry Kenney