PFW 103 Lecture Notes - Lecture 7: Subset, Jerky, Exponentiation
14 Mar 2017
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Document Summary
Midterm opens this friday and is open until next friday (do not wait until the last. Benefits of resistance training: weight control- higher metabolism, appropriate weight gain, appearance, time economy, energy, athletic performance, bone strength, cardiovascular health, can be done at any age. Cautions for resistance training: not a complete exercise program-does not develop cardiovascular endurance, risk of injury, trouble accessing equipment, can result in milk soreness, just because it"s hard, doesn"t mean you should. Individuals with cardiovascular issues should seek medical guidance. Isometric (static) exercise: muscle contracts but does not change length or create movement, not widely used due to poor potential for great strength gains, only gain strength at angle trained. Isotonic (dynamic exercise: muscle contracts, shortens and movement occurs, most widely used form of resistance training, concentric contraction- muscle shortens as it overcomes resistance, eccentric contraction- muscle lengthens and contracts at the same time. Contracting muscle is the agonist and opposing muscle is the antagonist.
