Health related fitness components Cardiovascular endurance Muscular endurance Strength Flexibility Speed Power Body composition
May 26, 2015
Health related fitness components
Cardiovascular enduranceMuscular endurance
StrengthFlexibility
SpeedPower
Body composition
CV endurance
‘The ability to provide and sustain energy aerobically’
Endurance is what underpins all aerobic activities, such as running, cycling etc
Maximal oxygen uptake (VO2max)
A key component of CV endurance is VO2max which is ‘the maximal amount of oxygen that can be taken in, transported and consumed by the working muscles per minute’
Factors affecting CV endurance
Proportion of slow twitch muscles fibres
Size and number of mitochondriaSize of myoglobin storesVO2max
Strength
‘The maximum force that can be developed in a muscle or group of muscles during a single maximal contraction’
Types of strength
Maximum strength – requires large force to overcome resistance in single contraction
Elastic strength – overcoming a resistance rapidly yet prepare muscle for sequential contraction of equal force
Strength endurance (muscular) – undergoing repeated contractions without becoming fatigued
Factors affecting strength
Ability to ‘buffer’ lactic acidMuscle fibre type – fast and slow
twitches
Flexibility
‘The range of movement possible at a joint’
Speed
‘The ability to put body parts into motion quickly, or the maximum rate that a person can move over a specific distance’
Power
‘The amount of work done per unit of time; the product of strength and speed’
How to test health related fitness components
CV endurance – MSFT (bleep test)Muscular endurance – sit up/press up testStrength – handgrip dynamometer or 1
rep maxFlexibility – sit and reach testSpeed – 30m sprint testPower – sergeant or standing broad jump
Homework
Remember to keep up with your glossary
of key terms