Nutrition and Muscle Mechanics Quiz
15 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is a micronutrient?

  • Water
  • Minerals (correct)
  • Protein
  • Carbohydrates

    • What is the primary function of the sliding filament theory?

  • Defining the types of muscle fibers
  • Explaining the process of muscle contraction (correct)
  • Describing how bones connect to muscles
  • Illustrating the role of tendons in movement

    • Which of the following is NOT a training principle?

  • Specificity
  • Progressive Overload
  • Periodisation
  • Repetition (correct)

    • Which type of lever has the fulcrum in the middle?

    <p>Stage 1 (A)</p> Signup and view all the answers

    Which of the following is the most important factor for a sprinter to consider before a race?

    <p>Consuming simple carbohydrates (C)</p> Signup and view all the answers

    A high-intensity exercise training program would most likely involve which of the following training principles?

    <p>Recovery and Progressive Overload (A)</p> Signup and view all the answers

    Which of these sports drinks is best suited for athletes involved in high-intensity sports?

    <p>Isotonic (A)</p> Signup and view all the answers

    Which of the following statements about caffeine is TRUE?

    <p>Caffeine can improve focus and reduce tiredness (B)</p> Signup and view all the answers

    Which of the following is NOT a benefit of SAQ training?

    <p>Increased muscle mass (D)</p> Signup and view all the answers

    Which of the following macronutrients is responsible for providing quick energy?

    <p>Simple carbohydrates (B)</p> Signup and view all the answers

    Which of the following is a primary function of water in the body?

    <p>Flushing out waste (D)</p> Signup and view all the answers

    Which of the following is a short-term effect of alcohol consumption?

    <p>Slower reaction time (A)</p> Signup and view all the answers

    Which of the following is a potential drawback of creatine supplementation?

    <p>Water retention and weight gain (A)</p> Signup and view all the answers

    What is the main function of fibre in the body?

    <p>Slowing down digestion (D)</p> Signup and view all the answers

    What is the main purpose of a PARQ?

    <p>Obtaining informed consent from an athlete (A)</p> Signup and view all the answers

    Flashcards

    Macronutrients

    Essential nutrients required in large amounts for energy and health.

    Proteins

    Rebuilds and repairs tissues in the body.

    Fibre

    Aids in digestion by slowing down digestion processes.

    Simple Carbohydrates

    Quick sources of energy, often in sugar form.

    Signup and view all the flashcards

    Levers (Stage 1)

    First class lever where the fulcrum is in the middle.

    Signup and view all the flashcards

    Sliding Filament Theory

    Process of muscle contraction involving myosin and actin.

    Signup and view all the flashcards

    Agility

    Ability to change direction quickly while controlling the body.

    Signup and view all the flashcards

    Progressive Overload

    Gradually increasing the intensity of exercises.

    Signup and view all the flashcards

    Periodisation

    Training method that cycles intensity to peak at an event.

    Signup and view all the flashcards

    Caffeine

    Stimulant that enhances focus and endurance in sports.

    Signup and view all the flashcards

    Alcohol in Sports

    Substance that impairs coordination and decision-making in athletes.

    Signup and view all the flashcards

    Creatine

    A natural compound that provides quick energy to muscles.

    Signup and view all the flashcards

    Sports Drinks

    Beverages designed to replenish fluids and electrolytes lost during exercise.

    Signup and view all the flashcards

    Recovery (Training Principle)

    Rest and rejuvenation needed after intense training.

    Signup and view all the flashcards

    Isotonic Drinks

    Beverages that provide balanced hydration and energy.

    Signup and view all the flashcards

    Study Notes

    Macronutrients

    • Protein: Essential for rebuilding all tissues in the body.
    • Water: Crucial for flushing out bodily waste.
    • Fiber: Slows down digestion.
    • Simple Carbohydrates: Provide quick energy/sugar.
    • Fats and Lipids: Vital for maintaining body heat.

    Micronutrients

    • Vitamins and minerals are micronutrients

    Levers

    • Stage 1: Fulcrum is located in the middle.
    • Stage 2: Load is in the middle.
    • Stage 3: Effort is in the middle.

    Athlete (Sprinter) Considerations

    • Sprinters require quick recovery and short bursts of energy (up to 200 meters).
    • Pre-activity intake of simple carbohydrates is beneficial.
    • Ample water intake is crucial for hydration.
    • Post-training protein consumption aids muscle repair.

    Sliding Filament Theory

    • Step 1: Action potential triggers muscle contraction.
    • Step 2: Calcium ions are released from the sarcoplasmic reticulum.
    • Step 3: Calcium binding to troponin changes its shape.
    • Step 4: Myosin binding sites are exposed on actin.
    • Step 5: Myosin heads attach to and pull actin filaments.
    • Step 6: Myosin heads detach.
    • Step 7: Calcium ions leave troponin, and the binding site is covered.
    • Step 8: The cycle repeats.

    Energy Expenditure

    • Increased energy expenditure necessitates higher caloric intake.
    • Weight gain requires consuming more calories than burned.
    • Weight loss requires burning more calories than consumed.

    Athletic Performance Factors

    • Speed: The ability to move quickly in a single direction.
    • Agility: The capacity to accelerate and decelerate while maintaining control.
    • Quickness: The ability to respond rapidly to stimuli.
    • SAQ (Speed, Agility, Quickness): Training improves reaction time, coordination, athletic performance, injury prevention, and balance.

    Six Training Principles

    • Progressive Overload: Gradually increasing the demands of training over time.
    • Recovery: Rest, hydration, sleep, and proper nutrition are vital components of recovery.
    • Specificity: Tailoring training to target specific activities, intensities, and durations.
    • Reversibility: Training benefits decrease or disappear if activity is reduced.
    • Variety: Changing exercises and targeted muscle groups to avoid plateaus.
    • Periodization: Strategic training cycles to optimize performance at specific times.
    • PARQ documents are used to obtain informed consent from test subjects.
    • Essential for demonstrating subject agreement for testing purposes.

    Caffeine for Basketball Players

    • Caffeine is a short-term performance enhancer, that boosts alertness and energy.
    • The effectiveness and impacts of caffeine differ based on the quantity consumed.
    • For basketball, moderate use may enhance performance but large quantities can cause adverse effects.

    Performance Enhancers

    • Alcohol: A depressant found in drinks like beer, wine, and spirits.

      • Effects: Slows thinking, movement, memory, emotions, reflexes.
      • Short-term impacts: Impaired reaction time, poor coordination, flawed decision-making.
      • Long-term impacts: Memory problems, brain chemistry changes, injuries.
      • Sports impact: Historically used to reduce anxiety, but now banned. Diminishes strength, endurance, recovery, and increases injury risk.

    • Caffeine: A stimulant found in coffee, tea, chocolate, and energy drinks.

      • Effects: Speeds up the nervous system, improves focus, reduces tiredness.
      • Short-term effects: Enhanced alertness, better endurance, faster reactions.
      • Excess caffeine: Jitters, fast heartbeat, dehydration, dependency.
      • Sports impact: Improves endurance and reaction time in high-intensity sports, but may cause shaking in precision sports.

    • Creatine: A natural amino acid that fuels quick muscle energy.

      • Sources: Meat, seafood, dairy, and produced in the liver, pancreas, and kidneys.
      • Uses: High-intensity sports (sprinting, football, bodybuilding).
      • Benefits: Enhanced strength, reduced fatigue, improved memory.
      • Drawbacks: Some individuals experience no benefits, and it can induce water retention and weight gain.

    Sports Drinks

    • Replenish fluids, electrolytes, and energy lost during exercise.
      • Isotonic: Balanced hydration and energy (general use).
      • Hypotonic: Faster hydration, lower energy (light sports).
      • Hypertonic: High energy, slow hydration (post-endurance events).

    Bicarbonate (Baking Soda)

    • A compound that balances body acid.
    • Used by some athletes to delay fatigue during high-intensity exercise.
    • Excess intake can cause nausea, bloating, and stomach pain.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on macronutrients and micronutrients, the principles of levers in biomechanics, and specific considerations for sprinters. This quiz also covers the sliding filament theory of muscle contraction, providing a comprehensive overview of sports nutrition and physiology.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser