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 4 - Movement Analysis
Sports, Exercise & Health Science HL
Sports, Exercise & Health Science HL

Chapter 4 - Movement Analysis

Unlock The Power Of Your Muscles: Contract, Move & Relax

Word Count Emoji
689 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited onย 14th Jun 2024

Table of content

Muscles & movement basics

  • When muscles contract, they pull their ends towards the body's center. Think of a rubber band being pulled from both ends.
  • They can move our body parts by changing the force of contraction and the angle of action.

Types of muscle contractions ๐Ÿ•บ

 Concentric Contraction

  • Definition: Muscle shortens as it overcomes resistance.
  • Real World Example: Think about doing a bicep curl. As you lift the weight up (overcoming the weight's resistance), your bicep muscle shortens.

 Isometric Contraction

  • Definition: Muscle contracts but doesn't change in length because the force from the muscle is equal to the resistance.
  • Real World Example: Imagine pushing against a wall with all your might. The wall won't move (unless you're a superhero), and your muscles are working but not shortening!

 Eccentric Contraction

  • Definition: Muscle lengthens while contracting because it's not strong enough to overcome the resistance.
  • Fun Fact: This type of contraction can produce more force than concentric contraction.
  • Real World Example: Think about slowly lowering that weight during a bicep curl. Your bicep muscle is still working, but it's lengthening.

 Isotonic Contraction

  • Definition: Muscle changes in length while maintaining the same tension. However, the term can be misleading.
  • Real World Example: Imagine lifting a grocery bag. As you pick it up, the weight stays the same, but the force in your muscle might change due to the changing angle of your arm.

 Isokinetic Motion

  • Definition: The muscle contracts, making a body part move at a constant speed around a joint. This is rare and typically requires special equipment.
  • Real World Example: Imagine a specialized treadmill that controls your speed strictly. No matter how hard you try, you can only run at the speed it allows.

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IB Resources
Chapter 4 - Movement Analysis
Sports, Exercise & Health Science HL
Sports, Exercise & Health Science HL

Chapter 4 - Movement Analysis

Unlock The Power Of Your Muscles: Contract, Move & Relax

Word Count Emoji
689 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited onย 14th Jun 2024

Table of content

Muscles & movement basics

  • When muscles contract, they pull their ends towards the body's center. Think of a rubber band being pulled from both ends.
  • They can move our body parts by changing the force of contraction and the angle of action.

Types of muscle contractions ๐Ÿ•บ

 Concentric Contraction

  • Definition: Muscle shortens as it overcomes resistance.
  • Real World Example: Think about doing a bicep curl. As you lift the weight up (overcoming the weight's resistance), your bicep muscle shortens.

 Isometric Contraction

  • Definition: Muscle contracts but doesn't change in length because the force from the muscle is equal to the resistance.
  • Real World Example: Imagine pushing against a wall with all your might. The wall won't move (unless you're a superhero), and your muscles are working but not shortening!

 Eccentric Contraction

  • Definition: Muscle lengthens while contracting because it's not strong enough to overcome the resistance.
  • Fun Fact: This type of contraction can produce more force than concentric contraction.
  • Real World Example: Think about slowly lowering that weight during a bicep curl. Your bicep muscle is still working, but it's lengthening.

 Isotonic Contraction

  • Definition: Muscle changes in length while maintaining the same tension. However, the term can be misleading.
  • Real World Example: Imagine lifting a grocery bag. As you pick it up, the weight stays the same, but the force in your muscle might change due to the changing angle of your arm.

 Isokinetic Motion

  • Definition: The muscle contracts, making a body part move at a constant speed around a joint. This is rare and typically requires special equipment.
  • Real World Example: Imagine a specialized treadmill that controls your speed strictly. No matter how hard you try, you can only run at the speed it allows.

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