1. Chapter 3 Endocrine Responses to Resistance Exercise
Figure 3.1 Page 43 & Table 3.1 Page 44

2. Chapter 3 Non-Steroidal Hormones
Hormones travel in the blood to their specific target organs.
w Receptors are specific to hormones such that only the correct hormone will "fit" in the correct receptor.
w Each cell has 2,000 to 10,000 specific receptors.
Steroid Hormones – Originate from the Adrenal Cortex & the Gonads
Lipid in nature, diffuse through cell membranes

3. Chapter 3

4. Chapter 3

5. Chapter 3 Anabolic Steroids
Anabolic – Protein building or Synthesizing
Androgenic – Promotion of male characteristics
Gynecomastia – Formation of female breasts in males
Acromegaly – Formation of new bone growth
Testicular Atrophy
Hypertrophy of Clitoris

6. Chapter 3
Testosterone – Androgenic – increases with heavy resistance training
Secreted by testes of male and adrenal cortex and ovaries of female
Most potent hormone on neural changes
Diurnal variations
Time of day
Exercising large muscles
Heavy Resistance/Short rests between sets

7. Growth Hormone (GH) Somatotropin– Secreted by the Pituitary Gland –
Increases Lypolysis
Decreases Glycolysis
Enhances amino acid uptake and helps with hypertrophy of Type I and Type II fibers
Enhancements are dependant on load, rest and volume of exercise
Stimulates release of IGF from liver and fat.

8. Chapter 3 Insulin-like Growth Factors (IGF) Other Hormones
GH causes the liver to secrete these 8-29 hours after intense exercise (109)
May release hormone for own consumption – no external to the cell
Other Hormones
Cortisol – Help with the catabolism of protein(muscles). Prefer type II muscle fibers (Pg. 111)
Increase in resistance training appears to lessen the effect

9. Chapter 3 Catecholamines – Epinephrine & Norepinephrine & Dopamine
These act as motor stimulators
Increase force production
Increase muscle concentration rate
Increase blood flow
Increase blood pressure
*** Page 112 Natural stimulation of Endocrine
***Note the rest periods on page 113!!!

10. It’s quiz time!