EHS 230 Lecture Notes - Lecture 8: Strength Training, Endurance Training, Skeletal Muscle
19 Jun 2018
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Lecture 8
Topics: Endurance training
Endocrine response to training
Endocrine response to Training
Hormones
- Chemical messengers,
- Blood collects, stores and releases it
- Have receptors on target tissue
- Send signals to many body tissues
- Common hormones: testosterone, growth hormone, insulin growth hormone, cortisol
- Anabolic hormones- help build tissues
- Ex. testosterone and cortisol
- Catabolic hormones- help protein breakdown to synthesize glucose
- Firsts steps of muscle growth are decrease in protein breakdown and synthesis
- Type 1 fibers need decrease in protein breakdown
- Type 2 fibers need increase in protein production
Growth Hormone
- Held by pituitary gland
- Amino acid and protein production increases as result
- Increases both fiber types via hypertrophy
- increases IGF + other hormone release
Testosterone
- Used in skeletal muscle and motor neurons
- High blood in men and low in women post exercise
- Can increase by:
- Exercises on many muscle groups at once
- High resistance
- Medium to large exercise volume with many sets
- Small rest time
- At Least 2 years experience
- Higher in men in morning
Cortisol
- Involved in catabolism via expanding carbohydrate
- Higher rate of enzyme breakdown of protein
- Rises with resistance exercises combined with small rest time and appropriate load
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Document Summary
Common hormones: testosterone, growth hormone, insulin growth hormone, cortisol. Catabolic hormones- help protein breakdown to synthesize glucose. Firsts steps of muscle growth are decrease in protein breakdown and synthesis. Type 1 fibers need decrease in protein breakdown. Type 2 fibers need increase in protein production. Amino acid and protein production increases as result. Increases both fiber types via hypertrophy increases igf + other hormone release. Used in skeletal muscle and motor neurons. High blood in men and low in women post exercise. Exercises on many muscle groups at once. Medium to large exercise volume with many sets. Higher rate of enzyme breakdown of protein. Rises with resistance exercises combined with small rest time and appropriate load. Force used on fibers stimulate them to grow muscle and strength. Acute hormone production gives body info on: Catabolic events can happen if stress too big. Hormone response level dependent on # of stimulated tissue. Endurance training- raises aerobic of both fibers.
