activity analysis unit 4 first sac

Question 1

fitness components

Answer 1

aerobic power
body composition
flexibility
muscular endurance
muscular strength
agility
anaerobic capacity
balance
coordination
muscular power
reaction time
speed

Question 2

aerobic power

Answer 2

the maximum rate of energy production for the aerobic energy system (e.g. energy produced in the presence of oxygen)

• best way to measure aerobic power is the vo2 max test

-high importance for extended athletic events such as marathon and triathlon

Question 3

factors affecting aerobic power

Answer 3

muscle fiber type- greater percentage of slow twitch fibers will increase aerobic power
- slow twitch fibres work aerobically

age-aerobic power peaks in the mid 20’s and then decreases as we age
-this is due to the decreased elasticity of the lungs (decreasing oxygen uptake) and decrease haemoglobin (decreased oxygen transport)

Question 4

anaerobic capacity

Answer 4

the total amount of energy obtainable from the anaerobic energy systems (the combined capacity of the ATP system and anaerobic glycolysis system)

-high importance
-elite level, 100 meter sprint
-basketball rebounds and blocks

Question 5

factors effecting anearobic capacity

Answer 5

lactate intolerance- the more metabolic by products that can be tolerated, the more high intensity efforts can be made

sex-males have higher anaerobic capacity
-due to greater muscle mass, therefore more laces to store CP and increased enzymes therefore increased ability to work aerobically

Question 6

muscular strength

Answer 6

peak force that a muscle can develop

high importance- gripping a hockey stick while making a powerful shot at goal

Question 7

factors effecting muscular strength

Answer 7

length of muscle fibre- if the muscle is slightly stretched, it is in the best position to create its maximum force

warm up-warmed up muscles have a greater ability to create strength then muscles that are not

Question 8

muscular power

Answer 8

the ability of a muscles or groups of muscles to exert a maximum amount of force in the shorted period of time. power=force x velocity

high importance- field events (shot-put, javelin) and a spike in volleyball

Question 9

factors effecting muscular power

Answer 9

fibre type- fast twitch

joint around the muscle- for each joint angle in movement there is an optimal angle for the creation of power

Question 10

muscular endurance

Answer 10

the ability of a muscle or group fo muscles to sustain repeated contractions against a resistance for an extended period of time

high importance-arms legs and abdominals in most team games
arms, legs and abdominals in 200 meter sprint

Question 11

speed

Answer 11

the rate of motion (distance/time)

high importance-undertaking any sprint event in athletics
-accelerating to create space or evade an opponent in team games

Question 12

factors effecting speed

Answer 12

reaction time-the faster reaction time, faster the speed

flexibility- increased range of motion , due to increased flexibility means an athlete can get further in each stride, making them more efficient in technique and increasing the speed

Question 13

agility

Answer 13

ability to change direction rapidly and accurately while maintaining balance

high importance- dribbling the ball around opponents in soccer or basketball

factors affecting it
similar to speed

Question 14

flexibility

Answer 14

movement around a joint or the capacity of a joint to move through its full range of motion

high performing gymnastics routine

Question 15

flexibility factors affecting it

Answer 15

skin resistance- skin has lower elasticity than that of ligaments and tendons, so it can restrict higher ranges of movement

bone- depending on the joint, the bone type and structure will vary and thus have different effects on the actual flexibility of the joint

Question 16

balance

Answer 16

the ability of the body to remain in a state of equilibrium while performing a desired task

high performing a handstand in gymnastics

Question 17

body compositon

Answer 17

refers to the relative proportions of the bone, muscle and fat within the body

Question 17

factors effecting balance

Answer 17

centre of gravity and base of support

Question 17

factors affecting body composition

Answer 17

genetics- males are more likely to be obese then females are less likely to have level of muscle mass

diet and physical activity levels-positive energy balance, where energy input is greater then energy output will increase body fat

Question 17

coordination

Answer 17

the ability to use a different parts of the body together smoothly and efficiently

high importance-casting a shot in shot put

Question 18

reaction time

Answer 18

the time between a stimulus and the first response

high importance- deciding which player is in the best position to receive a pass in basketball

Question 18

factors affecting coordination

Answer 18

if you have poor vision and hearing

• level of the experience the athlete has

Question 19

factors affecting reaction time

Answer 19

intensity of the cue- greater=a shorter reaction time so it can be more easily detected