Kinesiology 2230A/B Lecture Notes - Lecture 1: Muscle Contraction, Glycolysis, Carbohydrate

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2230A/B
• Professor: Glen Belfry

Document Summary

3min: as duration increases, power is going to decrease (maintaining low power output for longer durations, atp-pcr, this system gives you energy very quickly early on but doesn"t last too long. What is energy: energy is the potential to do work (exercise, muscle contraction produces heat. Quantifying energy: energy in biological reactions produce heat, amount of heat produced is directly related to amount of energy you produce. January 6th, 2017: hence, energy intake and output measured in either kilocalories (kcals) or joules (1kcal = 4. 184 (4. 2) kjoules: 1kcal (or 4. 2kjoules) represents the amount of energy necessary to raise the temperature of 1 c at 15 c. Efficiency during exercise: efficiency = (cid:3042) (cid:3042)(cid:3031)(cid:3030)(cid:3032)(cid:3031) (cid:4666)(cid:2197)(cid:2203)(cid:2202)(cid:2198)(cid:2203)(cid:2202)(cid:4667) (cid:3007)(cid:3032)(cid:3032) (cid:3006)(cid:3041)(cid:3032)(cid:3034) (cid:3042)(cid:3033) (cid:4666)(cid:2196)(cid:2198)(cid:2203)(cid:2202)(cid:4667) Can convert watts and vo2 to kcals: humans are inefficient. 70-80% of energy used in our bodies is released (lost) as heat. Nutritional sources of energy: carbohydrate, all are composed of carbon, hydrogen, and oxygen with the addition of nitrogen in the.