We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byErin Hale
Modified over 3 years ago
© Boardworks Ltd of 33 Muscle twitch fibres Muscle twitch fibres occur in different proportions in different people. This proportion is mainly to do with the genes you inherit. The proportion can be altered to some extent by training. Suggest a mix for the sportspeople shown below.
© Boardworks Ltd of 33 Muscle strength Strength means the maximum force that muscles can exert when they contract. There are three different types of strength: Static strength The amount of force that muscles can apply to a stationary object. Dynamic strength The amount of force that muscles can apply to move a heavy object. Explosive strength The amount of force that muscles can exert in one fast movement. © EMPICS Ltd
© Boardworks Ltd of 33 Muscle strength
© Boardworks Ltd of 33 Isotonic contractions The different types of strength are related to the different types of muscular contractions. Isotonic contractions occur when using dynamic and explosive strength. When a contraction is isotonic, movement is created. The contracting muscle shortens and fattens. This shortening action pulls on the bones, causing them to move. Isotonic contractions are generally the more important type of contraction for sportspeople, especially games players. They produce both speed and power. Fast-paced games require isotonic contractions.
© Boardworks Ltd of 33 Isometric contractions Isometric contractions do not create movement – the muscle neither shortens nor lengthens. Isometric contractions produce static strength. This type of contraction occurs in several situations: To support a weight in a stationary position. To hold the body in a particular position (e.g., in gymnastics). To stabilize part of the body so movement can occur elsewhere. Isometric contractions occur in a rugby scrum © EMPICS Ltd
© Boardworks Ltd of 33 Strength training The strength of muscles can be increased through training. Strength training makes muscles grow thicker, allowing them to contract with more force. Strength training involves repeatedly lifting, pushing or pulling against a large resistance. This kind of exercise can usually only be repeated a small number of times, because it is extremely tiring. When muscles increase in size, it is called hypertrophy. When muscles waste away it is called atrophy.
© Boardworks Ltd of 33 Muscle endurance training Muscular endurance means the ability of muscles to repeatedly contract without getting tired. Muscular endurance can be improved by moving a lighter weight many times. Muscles become better at using oxygen and long-term energy stores (especially fat) and work better over long periods of time. Muscular endurance is important in events like long distance running, cycling and rowing which take a long time to complete.
© Boardworks Ltd of 33 Muscle training
© Boardworks Ltd of 33 Muscle training – everyday tasks Improving muscle strength and endurance through training can make everyday tasks easier. Many everyday tasks like gardening, moving furniture and ironing require physical exertion. If you are stronger and have better muscular endurance, you will find these tasks less tiring. Muscular endurance is generally more important in everyday life – most people rarely have to lift something that is very heavy. People who do very physical jobs, for example, farmers and builders, may need higher levels of strength.
© Boardworks Ltd of 33 Muscle training – rehabilitation Strength training can also assist recovery after an injury. Light weights are used at first to prevent further injury. Gradually the performer lifts heavier weights as the injury heals and the muscles strengthen. Strength training can also help to prevent injuries – strong muscles can take higher stresses without being damaged. A performer who has suffered a joint injury may use a programme of weight training to strengthen the muscles, tendons and ligaments around the joint in order to reduce the risk of the injury reoccurring.
© Boardworks Ltd of 33 Muscle tone and posture Muscles almost never fully relax – even when you sleep, there are always some fibres in a state of partial tension. This is called muscle tone. Exercise improves your muscle tone – it causes more of your muscle fibres to be slightly tensed, ready for action. Poor muscle tone leads to poor posture and slouching. Maintaining muscle tone requires energy. Rounded shoulders Curved back
© Boardworks Ltd of 33 Posture If you have good posture… But if you have poor posture… Your internal organs, like your heart and digestive system, will function more effectively because good posture creates more space in the chest and abdomen. Straight shoulders allow more room in the chest, so lung capacity is increased. Good posture helps prevent strain and injury in everyday activity and sport. Other muscles have to work harder to compensate for weak muscles. You will get tired sooner. You dont look as good. This may damage your self- esteem.
© Boardworks Ltd of 33 Muscle quiz
© Boardworks Ltd of 33 Exam-style questions 1.This picture shows part of the muscular system. a)Name muscles a–e. a b c d e Janine exercises her deltoids by lifting heavy weights. She raises her arms out to the sides until her hands are level with her shoulders. b)What type of movement is occurring at the shoulder? c)What type of muscle contraction is involved? Janine changes her exercise to holding the weights out to the sides at shoulder level for 10 seconds at a time. d)What type of strength will this improve?
© Boardworks Ltd of 33 Exam-style questions 2.Explain what is meant by an antagonistic pair and give one example. 3.Muscular endurance can be improved by training. Andrew is trying to improve his muscular endurance. He performs five biceps curls a day with a very heavy weight. Andrews muscular endurance is not increasing much. a)What is meant by muscular endurance? b)How is muscular endurance important in everyday life? c)Suggest how he could change his exercise so that he achieves better results.
© Boardworks Ltd of 33 Can you remember all these keywords? Voluntary muscle Involuntary muscle Cardiac muscle Antagonistic pair Origin Insertion Extensor Flexor Fast twitch Slow twitch Isotonic contraction Isometric contraction Hypertrophy Atrophy Resistance Muscular endurance Muscle tone Posture
© Boardworks Ltd of 33 Muscles and Muscle Action © Boardworks Ltd of 33 These icons indicate that teacher’s notes or useful web addresses.
GCSE Physical Education The Muscular System Part 1 – The structure of the muscular system Objectives… 1.To be aware of the main muscles that make up the.
By the end of this unit you should be able to identify and describe the composition of skeletal muscle identify and describe different muscle fibre.
1.2.4 – Active lifestyles and your muscular system Learning objectives To understand and describe the term ‘antagonist pair’ To understand the different.
The Muscular System To develop understanding of the muscular system To understand the role muscles have in movement in the body.
ANATOMY & PHYSIOLOGY MUSCLES : TYPES, FIBRES & MOVEMENT PATTERNS.
GCSE Physical Education The Muscular System. How does the muscular system produce movement?
Also known as striated or skeletal muscle this is the most common type of muscle. They attach to the skeleton. These are consciously controlled. Also.
© Folens 2009 FOR EDEXCEL A healthy, active lifestyle and your muscular system Muscles and exercise 1 Muscles and exercise.
Quiz 1.This system pulls on bones and makes them move. 2.Neck area of the vertebral column. 3.There are how many bones in the body? 4.There are 3 types.
A healthy, active lifestyle and your muscular system.
GCSE Physical Education The Muscular System The Muscular System.
© Folens 2009 FOR EDEXCEL A healthy, active lifestyle and your muscular system Muscular functions 1 Muscular functions.
THE MUSCULAR SYSTEM AIM: To understand the structure and function of muscles.
Muscular strength and endurance Unit 6. Objectives 1. Understand the difference between Muscular strength and Muscular Endurance 2. Recall the three types.
Victory Physical Education Copyright 2005 Physical Education Theory.
BRAIN SCAN Brain scan is an interactive quiz for use as a revision/ learning reinforcement tool that accompanies the theory package. To answer a question.
Human Biology N-16 Human Biology N-16 ANATOMY – The Muscular System.
INTRODUCTION Humans have over 650 muscles which differ in size according to the jobs they do. These muscles constitute 40% of our body weight. The special.
Resistance training concepts K. Nickson Paf 4O0. Muscles Muscles Required for every movement Required for every movement Produce force by contracting.
Learning Outcomes ALL – Show your understanding of the 2 different types of muscular contraction SOME – Apply your knowledge of muscles & movement into.
Developing Muscular Fitness Big Weights = Big Muscles!
Chapter Thirteen Understanding the Muscular System.
Learning Outcomes ALL – List the 3 different types of muscle - Demonstrate the separate categories that relate to specific movements - Show your understanding.
Lesson 1 1 Muscle Fitness Facts L E S S O N. Can You explain the differences between strength, muscular endurance, and power?... describe how exercise.
THE MUSCULAR SYSTEM TOPIC LESSON 1 - OBJECTIVES Understand the main function of the muscular system. Learn about the main muscles in the human.
Exploring Sport The Muscular Structure. 3 Types of Muscle In the Human Body there are 3 different types of muscle. These are: Involuntary Muscles – Also.
Muscular Fitness is an individual’s combination of: Muscular Strength Muscular Endurance Flexibility.
Section Exercise and fitness as part of your healthy, active lifestyle Lesson 5: Health - Related Exercise.
Physical Fitness (sometimes called Health Related Fitness) is something we all possess in varying amounts. It is best remembered if you think of 4 S’s.
Rehabilitation and Conditioning Rehabilitation-restoring function through programmed exercise, to enable return to competition.
SEHS Topic Joint and Movement Type. Outline the types of different muscle contractions Types: isotonic, isometric, isokinetic, concentric,
MUSCLE PERFORMANCE EXERCISES. Muscle Performance Muscle Performance refers to the capacity of the muscle to do work. The key elements of muscle performance.
PE Theory Exercise and Fitness As part of your healthy, active lifestyle.
What is the Muscular System? The driving force behind movement, as a result of muscles contracting. Muscles: 1. Define body shape 2. Maintain posture.
Muscular System. Lesson Objectives In today’s lesson you will: Can I re-cap last lessons keywords? Can I understand the short and long-term effects of.
MUSCULAR STRENGTH & MUSCULAR ENDURANCE. MUSCULAR STRENGTH- the ability of a muscle group to apply a maximal force against a resistance one time. MUSCULAR.
Sports Medicine: Physical Fitness. 1. Define new vocabulary terms 2. Review muscular anatomy 3. Differentiate between muscular strength and muscular endurance.
Muscles: Posture, Tone and the Effects of Exercise Lesson 9.
2 What is Resistance Training? The best way to build and tone your muscles is through a program of resistance training. Resistance training Also called.
The Muscular System. **You need to be able to label each muscle and know what movement it is responsible for.
Muscular system recap.. Classifications of muscles There are three types of muscle you need to know. There are three types of muscle you need to know.
Muscular System. 2 What is the role of muscle? In order to make the joints move, muscles are required. The muscles in the body can pull. Combined with.
Health Related Components of Fitness. Health Related Fitness Physiologically based factors that may impact upon a persons health. Cardio-respiratory.
MUSCLES. Activity 1 Write down as many muscles as you can and identify where on the body the muscle is located.
The Structure of the muscular system Year 10 GCSE.
STRUCTURES & FUNCTIONS Muscular System. All of the muscles that let you move. An organ system whose primary function is movement and flexibility.
Take 5 minutes to read through the marking stamp and feedback, and respond appropriately.
© 2017 SlidePlayer.com Inc. All rights reserved.