Fitness

Question 1

Standing with good posture involves:

Answer 1

Vertically aligning the centres of gravity of different sections of the body

Question 2

Benefit of good posture:

Answer 2

Balances the muscles around each joint and helps keep the body stable and resilient

Question 3

Standing with bad posture means:

Answer 3

The centres of gravity of some body sections fall outside the body’s main centre of gravity in the pelvis

Question 4

When does bad posture occur?

Answer 4

With sedentary work and lack of exercise

Question 5

Consequences of bad posture:

Answer 5

Muscle strain, a common cause of backache

Question 6

The fitter your body the more:

Answer 6

Efficiently it works

Question 7

Fitness involves 5 factors (others incl. agility, balance, co-ordination and speed)

Answer 7

Body composition, flexibility, strength, muscular endurance, CR (cardiovascular respiratory) fitness

Question 8

Fitness 5 factors: body compostion

Answer 8

Fat content, proportions, shape and weight/size ratio (partly inherited, partly determined by diet + exercise)

Question 9

Fitness 5 factors: flexibility

Answer 9

Range of joint movements

Question 10

Fitness 5 factors: strength

Answer 10

The force contracting muscles can apply to move a load

Question 11

Muscle power

Answer 11

The rate at which muscles move a load

Question 12

Fitness 5 factors: muscular endurance

Answer 12

How long specific muscles can perform a task before fatigue sets in

Question 13

Fitness 5 factors: CR (cardio - vascular and respiratory) fitness

Answer 13

The ability of the heart and lungs to supply oxygen to muscles and remove waste products. (very important)

Question 14

An unfit heart at rest:

Answer 14

Has only a small reserve capacity

Question 15

Unfit heart when exercising:

Answer 15

Beats much faster during exercise (only has a small reserve capacity)

Question 16

Reserve capacity:

Answer 16

Heart’s work at rest

Question 17

Unfit heart after exercise:

Answer 17

Takes a long time to slow down to normal

Question 18

A heart made fit by regular exercise:

Answer 18

Grows stronger, bigger and more efficient

Question 19

Why does a fit person’s heart beat slower than an unfit person’s?

Answer 19

A fit heart pumps more blood with every stroke, so it beats more slowly than an unfit heart; also has a large reserve capacity

Question 20

Fit person’s heart after exercise

Answer 20

Soon slows down to normal

Question 21

Resting pulse rate of a fit person vs sedentary:

Answer 21

40-66 vs 84 bpm

Question 22

What restricts joint flexibility at any age?

Answer 22

Disuse