Fitness Concepts - Lesson 2
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Questions and Answers

What is physical activity?

Any body movement carried out by the skeletal muscles and requiring energy.

What is exercise?

A subset of physical activity planned, structured, repetitive movement of the body intended to specifically improve or maintain physical fitness.

What is physical fitness?

A set of physical attributes that allows the body to respond or adapt to the demands and stress of physical effort without becoming overly tired.

Which of the following are benefits of increasing physical activity? (Select all that apply)

<p>Enhance quality of life</p> Signup and view all the answers

How much physical activity is recommended for adults?

<p>A minimum of 30 minutes of moderate-intensity aerobic physical activity 5 days per week or 20 minutes of vigorous-intensity aerobic physical activity 3 days per week.</p> Signup and view all the answers

What are the health-related components of physical fitness?

<p>Cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, body composition.</p> Signup and view all the answers

What is cardiorespiratory endurance?

<p>The ability to perform prolonged, large-muscle, dynamic exercise at moderate-to-high levels of intensity.</p> Signup and view all the answers

What is muscular strength?

<p>The amount of force a muscle can produce.</p> Signup and view all the answers

What is muscular endurance?

<p>The ability of a muscle to continue exerting force without tiring.</p> Signup and view all the answers

What does flexibility refer to?

<p>The range of movement across a joint.</p> Signup and view all the answers

Study Notes

Physical Activity and Exercise

  • Physical activity involves any skeletal muscle movement that requires energy.
  • Exercise is a planned and structured subset of physical activity aimed at improving or maintaining physical fitness.
  • Physical fitness is a combination of attributes enabling the body to respond to physical effort without excessive fatigue.

Importance of Increased Physical Activity

  • Provides significant health benefits and manages weight.
  • Improves overall physical fitness and enhances quality of life.
  • Promotes freedom of movement, energy levels, and better body control.
  • Adults should engage in at least 30 minutes of moderate-intensity aerobic exercise 5 times a week or 20 minutes of vigorous-intensity aerobic exercise 3 times a week to maintain health.
  • Setting goals for physical activity should factor in current activity levels, health status, and personal fitness objectives.
  • Increasing activity levels can further aid in weight management.
  • Key components include:
    • Cardiorespiratory endurance
    • Muscular strength
    • Muscular endurance
    • Flexibility
    • Body composition

Cardiorespiratory Endurance

  • Reflects the ability to perform prolonged dynamic exercises at moderate to high intensity.
  • Benefits include improved heart function, lowered resting heart rate, increased blood volume, and improved tissue blood supply.
  • Regular engagement in aerobic activities enhances cardiorespiratory endurance over time; examples include walking, jogging, cycling, and aerobic dancing.

Muscular Strength

  • Measured by lifting a set weight in a controlled position compared to population standards.
  • Consistent and regular muscle training leads to increased strength.
  • Activities that cause muscle fatigue contribute to strength improvement over time.

Muscular Endurance

  • Defined as a muscle's ability to exert force without tiring.
  • Strength training increases muscle size, while endurance training focuses on cardiovascular improvements.
  • Involves different muscle fiber types: fast-twitch (for quick, tiring bursts) versus slow-twitch (for sustained activity).
  • Sprinters typically have more fast-twitch fibers; long-distance runners have more slow-twitch fibers.

Flexibility

  • Refers to the range of motion in joints and is crucial for smooth movement and injury prevention.
  • Flexibility varies by joint and is influenced by the tightness of ligaments and tendons.
  • Activities that promote flexibility often involve stretching and can enhance overall physical performance.

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Description

This quiz explores key concepts related to physical activity, exercise, and fitness. Understand the differences between physical activity and exercise, and learn about the attributes of physical fitness that enable the body to adapt to various demands. Perfect for those studying health and fitness fundamentals.

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