1 / 20

Muscular strength = Muscular endurance = Muscles = 40% of your body mass

Muscular strength = Muscular endurance = Muscles = 40% of your body mass. Basic Muscle Physiology Terms. Muscle fibers (cells) Myofibrils Myofilaments Actin Myosin Sliding Filament Theory of Muscle Contraction Hypertrophy = Atrophy =.

aristotle-delgado
Download Presentation

Muscular strength = Muscular endurance = Muscles = 40% of your body mass

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Muscular strength = Muscular endurance= Muscles = 40% of your body mass

  2. Basic Muscle Physiology Terms Muscle fibers (cells) Myofibrils Myofilaments Actin Myosin Sliding Filament Theory of Muscle Contraction Hypertrophy= Atrophy=

  3. The Sliding Filament Theory of Muscle Contraction

  4. The Sliding Filament Theory of Muscle Contraction • www.sci.sdsu.edu/movies/actin_myosin.html

  5. Motor Units

  6. Fast Twitch Type IIb Slow Twitch Type I Intermediate Type IIa

  7. Muscle Fiber Recruitment

  8. Isotonic vs. Isometric

  9. Isotonic vs. Isometric

  10. Two Phases of the Isotonic Contraction Concentric Eccentric

  11. Isokinetic Contraction

  12. Benefits of Muscular Fitness Muscular Strength a. Neural improvements b. Hypertrophy Muscular Endurance Body Composition a. weight management 1. basal metabolic rate b. body image Bone Density Tendon, ligaments, joint strength Blood pressure Blood cholesterol Sarcopenia

  13. Determinants of Muscular Fitness • Muscle fiber recruitment • Proportion of fibers recruited • Temporary muscular failure • Physiological changes • Hypertrophy= increase in number of myofibrils • Rate of improvement • Depends on initial strength level • Genetic differences

  14. ACSM’s Recommendations Frequency 2-3 days per week Intensity lift to fatigue Time 1 set; 3-20 repetitions Type 8-10 exercises to work all major muscle groups

  15. Weight Training Guidelines • Sequence • Form • Rest between sets • Muscle balance • Breathing • Speed of movement

  16. Major Muscle Groups

More Related