Fitness Components (Chapter 9) Flashcards
Health-related components
overall health and participation in daily activities
Skill-related components
improve motor skills
Aerobic power
rate of energy release by processes that depend on oxygen
Factors affecting aerobic power
- concentration of oxidative enzymes
- size and number of mitochondria
- blood volume
- cardiac output
Body Composition
fat-free mass and fat mass
Flexibility
capacity of a joint to move through its full range of motion
Static flexibility
range of motion under stationary conditions
Dynamic flexibility
resistance to motion in a joint
Factors affecting flexibility
- joint structure
- soft tissue structures
- body and muscle temperature
- age
- gender
Muscular strength
maximal force that can be generated by a muscle or muscle group in one maximal effort
Isometric
static, no change in muscle length
Isoinertial
produces movement by shortening or lengthening muscles
Concentric
muscle shortens
Eccentric
muscle lengthens
Isokinetic
velocity of muscle is constant
Factors affecting muscle strength
- muscle size
- fibre arrangement
- length tension relationship
- speed of muscle action
- age
- gender
Muscular endurance
the ability of the muscle or muscle group to perform repeated contractions for an extended period of time
Factors affecting muscular endurance
- fatigue
- fibre type
Anaerobic capacity
the capacity of the anaerobic systems to provide energy for muscular contraction, total amount of work that can be done
Muscular power
the ability to exert a force rapidly over a short period of time
Muscular power equation
power = force x velocity
Speed
rate of motion, how fast you can move your body or body part from point a to b
Agility
the ability to change direction rapidly and accurately
Coordination
the ability to use the body’s senses to execute motor skills smoothly and accurately
