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The amount of oxygen that can be taken into the body and consumed. Expressed as millilitres per kilogram of body mass per minute(mlKg-1min-1). Factors.

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Presentation on theme: "The amount of oxygen that can be taken into the body and consumed. Expressed as millilitres per kilogram of body mass per minute(mlKg-1min-1). Factors."— Presentation transcript:

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2 The amount of oxygen that can be taken into the body and consumed. Expressed as millilitres per kilogram of body mass per minute(mlKg-1min-1). Factors affecting VO2 max: Fitness, sex, age and physiological makeup (such as muscle fibre type etc.)

3 1. External Respiration 2. Transport of O2 around the body 3. Internal respiration 4. Utilisation of oxygen AGESEXVERY POOR POORAVERAGEGOODVERY GOOD 20-29MALE3839-4344-5152-5657+ 20-29FEMALE2829-3435-4344-4849+

4  Women have lower maximum cardiac output  Women have lower stroke volume/smaller left ventricle  Women have smaller blood volume/lower haemoglobin levels  Tidal volumes and ventilatory volumes are smaller in women  Women have higher percentage body fat

5 Physiological adaptations:  Lungs: Respiratory muscles get stronger, lung volume increases, maximum pulmonary ventilation increases  Heart: Myocardial hypertrophy, resting heart rate decreases  Vascular system: Arterial walls more elastic, increased number of capillaries at muscles and lungs, blood plasma volume increases, red blood cells and haemoglobin increase  Muscle: Mitochondria increase in size and number, myoglobin levels increase, increase in enzyme activity, increase in muscle glycogen stores

6 Maximal: The maximum force that can be exerted by a muscle in one single contraction. Explosive: The ability to overcome resistance with a high speed of contraction. Endurance: The ability to sustain a number of muscular contractions for a period of time.

7  Maximum strength: Hand grip dynamometer  Explosive strength: Sergeant jump  Strength Endurance: Sports Coach UK sit up test Factors affecting strength: Muscle fibre type, cross sectional area of the muscle

8 Maximum strength: resistance training  Frequency: at least twice a week  Intensity: 80% of maximum (1RM)  Time: 3 sets of 1–7 reps  Circuit training Explosive strength: resistance training  Frequency: at least twice a week  Intensity: 40–75% of maximum (1RM)  Time: 3 sets of 6–10 reps  Plyometrics, Circuit training, interval training Strength endurance: resistance training  Frequency: at least twice a week  Intensity: 40–80% of maximum (1RM)  Time: 4–6 sets of 12 reps  Circuit training, interval training

9 1.Muscle fibre type Type IIb are the strongest fibres and can contract/relax quickly. They are therefore important for explosive and maximal strength. 2. Cross-sectional area The cross sectional area determines the strength it can produce.

10  Muscle cells, muscle hypertrophy (including hyperplasia)  Increase in ATP stores  Increase in phosphocreatine stores  Increase in glycogen stores  Neural system, increased recruitment of motor units  Better synchronisation of motor units

11  Maximum strength: ATP-PC system/Phosphocreatine  Explosive strength: ATP-PC system/Phosphocreatine  Strength endurance: ATP-PC and lactic acid system/Glycogen

12  Static: The maximum range of movement at a joint with no emphasis on the speed of movement.  Dynamic: The ability to use a range of movement at a joint in the performance of a physical activity.  Name of test: Sit and reach test

13  Type of joint  Shape of the bones  Length and elasticity of muscle tissue  Length of tendons and ligaments  Elasticity of skin and amount of fat around joint  Temperature of all soft tissue  Age and sex

14  Active and passive static stretching, ballistic stretching and PNF  Frequency: 2–3 times a week  Intensity: mild tension felt in the muscle but no pain  Time: hold stretch for 10–30 seconds, repeat 3–5 times  Physiological adaptations: Increase length in muscle fibre and increase length in connective tissue (ligaments and tendons).


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