Kinesiology 2230A/B Midterm: Midterm 1 Notes - Lectures 1-9

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

Document Summary

Constantly being transformed from one state to another. Originate from the sun (no sun = no energy: the power plant (cid:523)energy (cid:498)created(cid:499) via hydrogen atoms(cid:524) Collisions b/w gaseous particles in the earth"s atmosphere with charged particle released from the suns atmosphere. Heat is quantifiable, therefore energy is quantifiable. Therefore, energy intake/output measured in either kilocalories (kcals) or joules - 1 kcal = 4. 2 kjoules. 1 kcal (4. 2 kjoules) represents the amount of energy necessary to raise the temp of 1 kg of water 1 degree celsius at 15 degrees celsius. The primary factors affecting energy production are total energy demand coupled with rate of demand. The reason it gives us fast energy is because there are so few reactions occurring. More reaction, more time require for energy production. All three reaction systems have different rates of atp production. More reactions the slower the atp production will be. As duration increases power decreases after the first 10sec.