Sports, Exercise & Health Science HL
18
Chapters
197
Notes
Chapter 1 - Musculoskeletal Anatomy
Chapter 2 - Cardio-Respiratory Exercise Physiology
Chapter 3 - Nutrition & Energy Systems
Chapter 4 - Movement Analysis
Chapter 5 - Skill In Sport
Chapter 6 - Measurement & evaluation of human performance
Chapter 7 - Training to optimize physiological performance
Chapter 8 - Environmental Factors & Performance
Chapter 9 - Non-Nutritional Ergogenic Aids
Chapter 10 - Individual Differences In Sport
Chapter 11 - Motivation In Sport & Exercise
Chapter 12 - Arousal, Anxiety & Performance
Chapter 13 - Psychological Skills Training
Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes
Chapter 15 - Physical Activity & Health
Chapter 16 - Nutrition For Sport & Exercise
Chapter 17 - Internal Assessment & Practical Work
Chapter 18 - Perparing For Your Exams
Sports, Exercise & Health Science HL
Chapter 3 - Nutrition & Energy Systems
Unlock The Secret Of EPOC: Post-Exercise Oxygen Consumption
679 words
4 mins read
Last edited onย 5th Nov 2024
Table of content
Oxygen debt & recovery - the breathing saga ๐
- Ever notice how you’re still panting even after a sprint? That’s because your body needs to repay the oxygen you borrowed during the sprint. It’s like your body's IOU!
- Excess Post-Exercise Oxygen Consumption (EPOC): That hard breathing you do after intense exercise. It's the body's way of catching up on the oxygen debt created during the workout.
- Real-world example: It's like when you borrow money and then have to pay it back with a little extra. The "little extra" is the interest, and EPOC is like the "interest" your body pays after intense exercise.
- Anaerobic Metabolism: Your body goes into overdrive early in exercise, using up energy without much oxygen. EPOC helps offset this.
- Other Reasons for EPOC:
- Restoring tissue and oxygen to muscles.
- Elevated breathing costs.
- Other physiological factors keeping metabolism high even after stopping exercise.
- The body's post-exercise "repair mode", which also needs energy.
The energy workshop - how our body fuels exercise ๐ฅ
- Exercise demands energy, and our body has various ways to provide it.
- ATP (Adenosine Triphosphate): The body's main energy currency! The demand for it is IMMEDIATE when you start exercising.
- Real-world example: ATP is like the battery in your favorite gadget. It powers everything!
- Energy Sources:
- Creatine Phosphate (PCr): Super fast, like Usain Bolt! But it runs out quickly, in about 20 seconds of intense effort.
- Glucose: Important across all exercise intensities.
- Fatty Acids: The chill energy source. Only comes into play during relaxed, lower-intensity exercise. At about 90% of max exercise, fatty acids take a backseat.
- Shifting Gears in Exercise: We don't just stick to one pace. Think of soccer games with quick sprints and then walking, or marathon runs with a sprint finish.
Unlock the Full Content! 
Dive deeper and gain exclusive access to premium files of Sports, Exercise & Health Science HL. Subscribe now and get closer to that 45 ๐
Sports, Exercise & Health Science HL
Chapter 3 - Nutrition & Energy Systems
Unlock The Secret Of EPOC: Post-Exercise Oxygen Consumption
679 words
4 mins read
Last edited onย 5th Nov 2024
Table of content
Oxygen debt & recovery - the breathing saga ๐
- Ever notice how you’re still panting even after a sprint? That’s because your body needs to repay the oxygen you borrowed during the sprint. It’s like your body's IOU!
- Excess Post-Exercise Oxygen Consumption (EPOC): That hard breathing you do after intense exercise. It's the body's way of catching up on the oxygen debt created during the workout.
- Real-world example: It's like when you borrow money and then have to pay it back with a little extra. The "little extra" is the interest, and EPOC is like the "interest" your body pays after intense exercise.
- Anaerobic Metabolism: Your body goes into overdrive early in exercise, using up energy without much oxygen. EPOC helps offset this.
- Other Reasons for EPOC:
- Restoring tissue and oxygen to muscles.
- Elevated breathing costs.
- Other physiological factors keeping metabolism high even after stopping exercise.
- The body's post-exercise "repair mode", which also needs energy.
The energy workshop - how our body fuels exercise ๐ฅ
- Exercise demands energy, and our body has various ways to provide it.
- ATP (Adenosine Triphosphate): The body's main energy currency! The demand for it is IMMEDIATE when you start exercising.
- Real-world example: ATP is like the battery in your favorite gadget. It powers everything!
- Energy Sources:
- Creatine Phosphate (PCr): Super fast, like Usain Bolt! But it runs out quickly, in about 20 seconds of intense effort.
- Glucose: Important across all exercise intensities.
- Fatty Acids: The chill energy source. Only comes into play during relaxed, lower-intensity exercise. At about 90% of max exercise, fatty acids take a backseat.
- Shifting Gears in Exercise: We don't just stick to one pace. Think of soccer games with quick sprints and then walking, or marathon runs with a sprint finish.
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Sports, Exercise & Health Science HL. Subscribe now and get closer to that 45 ๐