Sports, Exercise & Health Science HL
Sports, Exercise & Health Science HL
18
Chapters
197
Notes
Chapter 1 - Musculoskeletal Anatomy
Chapter 1 - Musculoskeletal Anatomy
Chapter 2 - Cardio-Respiratory Exercise Physiology
Chapter 2 - Cardio-Respiratory Exercise Physiology
Chapter 3 - Nutrition & Energy Systems
Chapter 3 - Nutrition & Energy Systems
Chapter 4 - Movement Analysis
Chapter 4 - Movement Analysis
Chapter 5 - Skill In Sport
Chapter 5 - Skill In Sport
Chapter 6 - Measurement & evaluation of human performance
Chapter 6 - Measurement & evaluation of human performance
Chapter 7 - Training to optimize physiological performance
Chapter 7 - Training to optimize physiological performance
Chapter 8 - Environmental Factors & Performance
Chapter 8 - Environmental Factors & Performance
Chapter 9 - Non-Nutritional Ergogenic Aids
Chapter 9 - Non-Nutritional Ergogenic Aids
Chapter 10 - Individual Differences In Sport
Chapter 10 - Individual Differences In Sport
Chapter 11 - Motivation In Sport & Exercise
Chapter 11 - Motivation In Sport & Exercise
Chapter 12 - Arousal, Anxiety & Performance
Chapter 12 - Arousal, Anxiety & Performance
Chapter 13 - Psychological Skills Training
Chapter 13 - Psychological Skills Training
Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes
Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes
Chapter 15 - Physical Activity & Health
Chapter 15 - Physical Activity & Health
Chapter 16 - Nutrition For Sport & Exercise
Chapter 16 - Nutrition For Sport & Exercise
Chapter 17 - Internal Assessment & Practical Work
Chapter 17 - Internal Assessment & Practical Work
Chapter 18 - Perparing For Your Exams
Chapter 18 - Perparing For Your Exams
IB Resources
Chapter 2 - Cardio-Respiratory Exercise Physiology
Sports, Exercise & Health Science HL
Sports, Exercise & Health Science HL

Chapter 2 - Cardio-Respiratory Exercise Physiology

Unlock The Secrets Of Blood Function During Exercise: Boost Performance Safely

Word Count Emoji
615 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited onย 5th Nov 2024

Table of content

Bouncing into blood basics ๐Ÿ€

  • Purpose of Blood in Exercise

    • Blood's main role during exercise is transport – think of it like Uber for our body's cells! It carries gases, nutrients, waste, hormones, and even helps regulate temperature.
  • Total Blood Volume

    • A 70kg guy has about 5 litres of blood. Imagine 5 one-litre soda bottles filled with blood, but don't visualize that for too long – it's kind of gross!
  • Blood Composition

    • Plasma (55%): The liquid part. Think of it as the 'water' in which all the other components float.

    • Blood Cells and Platelets (45%): This includes white blood cells, red blood cells, and platelets.

      • Fun Fact: Ever cut yourself and had a scab form? Thank the platelets for helping repair the injury! ๐Ÿฉน
  • Types of Blood Cells and their Roles

    • White Blood Cells (leucocytes): Less than 1% of blood volume. They're the body's defense squad, fighting off infections.

    • Red Blood Cells (erythrocytes): Make up 40-45% of the blood. Think of them as oxygen delivery guys. The percentage of blood that they make up is called the hematocrit.

      • Real-world example: Have you noticed that some people can run longer than others without getting tired? Their hematocrit value might be influenced by training and gender.

The oxygen-CO2 swap during exercise ๐ŸŽˆ

  • When we work out, carbon dioxide increases in our muscles. Our blood helps transport this CO2 from the muscles to our lungs, where we breathe it out.

  • Oxygen from the lungs gets attached to a substance in our blood called hemoglobin. Think of hemoglobin as an oxygen magnet!

    • Fun Fact: In areas of our body where oxygen is needed, like our active muscles, oxygen detaches from the hemoglobin and enters those tissues. It's like a relay race, but for oxygen!
  • By increasing the amount of hemoglobin in our blood, we can transport more oxygen, improving aerobic performance.

    • Training Hack: This is why some athletes train at high altitudes - less oxygen in the air there makes the body produce more hemoglobin. When they come back to sea level, they're super oxygen-efficient!
  • Warning โš ๏ธ: Some people cheat using blood doping or injecting synthetic EPO to artificially increase their hemoglobin levels. This gives them an unfair advantage in competitions, and it's illegal.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Sports, Exercise & Health Science HL. Subscribe now and get closer to that 45 ๐ŸŒŸ

Nail IB's App Icon
IB Resources
Chapter 2 - Cardio-Respiratory Exercise Physiology
Sports, Exercise & Health Science HL
Sports, Exercise & Health Science HL

Chapter 2 - Cardio-Respiratory Exercise Physiology

Unlock The Secrets Of Blood Function During Exercise: Boost Performance Safely

Word Count Emoji
615 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited onย 5th Nov 2024

Table of content

Bouncing into blood basics ๐Ÿ€

  • Purpose of Blood in Exercise

    • Blood's main role during exercise is transport – think of it like Uber for our body's cells! It carries gases, nutrients, waste, hormones, and even helps regulate temperature.
  • Total Blood Volume

    • A 70kg guy has about 5 litres of blood. Imagine 5 one-litre soda bottles filled with blood, but don't visualize that for too long – it's kind of gross!
  • Blood Composition

    • Plasma (55%): The liquid part. Think of it as the 'water' in which all the other components float.

    • Blood Cells and Platelets (45%): This includes white blood cells, red blood cells, and platelets.

      • Fun Fact: Ever cut yourself and had a scab form? Thank the platelets for helping repair the injury! ๐Ÿฉน
  • Types of Blood Cells and their Roles

    • White Blood Cells (leucocytes): Less than 1% of blood volume. They're the body's defense squad, fighting off infections.

    • Red Blood Cells (erythrocytes): Make up 40-45% of the blood. Think of them as oxygen delivery guys. The percentage of blood that they make up is called the hematocrit.

      • Real-world example: Have you noticed that some people can run longer than others without getting tired? Their hematocrit value might be influenced by training and gender.

The oxygen-CO2 swap during exercise ๐ŸŽˆ

  • When we work out, carbon dioxide increases in our muscles. Our blood helps transport this CO2 from the muscles to our lungs, where we breathe it out.

  • Oxygen from the lungs gets attached to a substance in our blood called hemoglobin. Think of hemoglobin as an oxygen magnet!

    • Fun Fact: In areas of our body where oxygen is needed, like our active muscles, oxygen detaches from the hemoglobin and enters those tissues. It's like a relay race, but for oxygen!
  • By increasing the amount of hemoglobin in our blood, we can transport more oxygen, improving aerobic performance.

    • Training Hack: This is why some athletes train at high altitudes - less oxygen in the air there makes the body produce more hemoglobin. When they come back to sea level, they're super oxygen-efficient!
  • Warning โš ๏ธ: Some people cheat using blood doping or injecting synthetic EPO to artificially increase their hemoglobin levels. This gives them an unfair advantage in competitions, and it's illegal.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Sports, Exercise & Health Science HL. Subscribe now and get closer to that 45 ๐ŸŒŸ