KINE 2P97 Lecture Notes - Lecture 1: Peptide, Basal Metabolic Rate, Monosaccharide
8 May 2018
School
Department
Course
Professor
KINE 2P97
Muscle Physiology & Exercise Metabolism
Basic Nutrition and Energy and Expenditure
Carbohydrates
- Normal diet 40-50%
- very important for high intensity exercise
- Can only be stored in limited amounts
- Muscle glycogen depletion is highly associated with fatigue/exhaustion
- efore during and after
- estimated that athletes involved in rigorous training should eat more CHO
- glucose intake important during prolonged exercise (sports drink)
- very important in recovery to replenish glycogen
- 6-10 g/kg/d or ~70-80% of total calories
- 4 kcals/g
- Energy source: faster ATP synthesis
- carbohydrates
o ~70% of total calories for consistent high-intensity prolonged aerobic activity
o less for other types of activity (40-60%)
o important to maintain glycogen stores especially for repeated performance
Storage of Glycogen
- total CHO: ~500g/2000kcal
- muscle (~400g/80%)
- Liver (~100/20%)
- Plasma (<5/<1%) transport form glucose
- Structure
o Basic unit = hexose (C6H12O6)
- Glycogenesis (glycogen creation)
- Gluconeogenesis (glucose new making)
- Glycogenolysis (glycogen breakdown)
Types
- Monosaccharide
- Disaccharide
- Polysaccharide
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