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Exploring the Effects of Exercise on Respiration

Exploring the Effects of Exercise on Respiration. Lesson Prep: Using What ’ s Already There. Internet provides: Opportunities for networking Useful teaching supplements (and some not so useful ones) Lesson plans, assessment ideas, lab ideas, opportunities for collaboration with colleagues

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Exploring the Effects of Exercise on Respiration

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  1. Exploring the Effects of Exercise on Respiration

  2. Lesson Prep: Using What’s Already There • Internet provides: • Opportunities for networking • Useful teaching supplements (and some not so useful ones) • Lesson plans, assessment ideas, lab ideas, opportunities for collaboration with colleagues • Collaboration: • Increases lesson effectiveness • Enhances communication with students (and colleagues) • Ultimately decreases workload (don’t reinvent the wheel)

  3. Focus Questions • What are the basic components of the human respiratory system (lecture)? • How does exercise affect the rate of external and internal respiration (lab)?

  4. Human Respiration Entrance Question • Why do we need to respire (aka breathe)? • To take in Oxygen • To get rid of CO2 • To replenish our cells’ energy • The brain can survive ~6 min w/o blood (aka O2 supply and CO2 removal) • Sore muscles = due to lack of O2 supply • To maintain blood pH • Large changes in pH can kill cells • CO2 has a big effect on blood pH

  5. Human Respiration • http://www.youtube.com/watch?NR=1&v=HiT621PrrO0 • http://www.youtube.com/watch?v=Lygr-rAtHgA&NR=1 • Does breathing = respiration? • Why/why not? • http://www.youtube.com/watch?v=xmceP5z6qsA • Do we always fill our lungs to capacity?

  6. Let’s Exercise • Supplies: • Each team needs • 1 small beaker about ½ full of DI water • pH meter or 5 pH strips • 1 straw (DO NOT SET THIS ON YOUR COUNTERTOP AS YOU WILL BE BLOWING INTO IT) • 1 stopwatch • Follow Lab Instructions • Pay attention to the TYPE of breathing you notice as well (abdominal or thoracic?) • PLEASE DON’T OVER-EXERT YOURSELVES, THIS IS NOT P90X!!!

  7. Human RespirationExit Question Based on what you observed with breathing rate and CO2, how do you think exercise affects cellular respiration?

  8. Fun Facts For Teaching There Are Major Links Between the CardioVascular System and Respiration • Increase in respiration ties to increase in pulse rate, BP, and cardiac output (the amount of blood flowing through the body) • Caffeine increases pulse rate/blood pressure = increases respiratory rate • Why would this help you feel more alert? • Living at high altitudes increases INTERNAL respiration • An athlete typically • Has a slower stronger heartbeat • Has a lower blood pressure due to widened vessels • Breathes slower and deeper • = more efficient • Has a shorter recovery period than a non-athlete breathing

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