22 Lecture - 10/22 Substrates for Exercise I. Phases of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
10/22 Substrates for Exercise I. Phases of Exercise 1) Rest 2) Initial Phase 3) Anaerobic II. What fuel is the body using to supply energy? 1) Creatine – Goes directly into muscle tissue, though it can also go through the liver a. Effective for activities that involve “short bouts of high-intensity physical activity” i. Jumping, sprinting, or cycling ii. Football, soccer, squash, lacrosse, track (short distance) b. Questionable whether it affects maximum strength or endurance c. Mechanism: i. Increases intra-cellular creatine levels ii. Increases intra-cellular water content (gained mass is not necessarily due to increased muscle mass) iii. Increases muscle growth – why? 1. Placebo effect – increases training (self-fulfilling) d. Health problems associated with use i. Muscle cramping ii. Gastrointestinal effects iii. Renal failure iv. Dehydration e. Almost all evidence is antidotal f. No evidence that it prevents muscle damage or soreness 2) Carbohydrate a. Glycogen loading – the more glycogen stored in a muscle, the better
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

22 Lecture - 10/22 Substrates for Exercise I. Phases of...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online