EHS 230 Lecture Notes - Lecture 19: Collagen, Skeletal Muscle, Strength Training
25 Jul 2018
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Lecture 19
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
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
- Collagen response to training
- Collagen holds CT, ligaments, tendons, fascia and bone
- Stronger CT is the result of rearranging collagen fibers
- When bone gets stronger, tendon and ligament also get stronger
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
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
- 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
Document Summary
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. Amino acid and protein production increases as result. Increases both fiber types via hypertrophy increases igf + other hormone release. Collagen holds ct, ligaments, tendons, fascia and bone. Stronger ct is the result of rearranging collagen fibers. When bone gets stronger, tendon and ligament also get stronger. Common hormones: testosterone, growth hormone, insulin growth hormone, cortisol. Higher rate of enzyme breakdown of protein. Rises with resistance exercises combined with small rest time and appropriate load. 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. Weak ct can be a weak like to body. Acute hormone production gives body info on:
