Chronic Adaptations to reduce effect of detraining and ageing

Question 1

What is detraining?

Answer 1

Cessation of exercise training

Question 2

How long does detraining last?

Answer 2

It can take place over weeks or many years

Question 3

Types of detraining?

Answer 3

Total cessation

Planned Reduction

Question 4

Cessation of resistance training - Affect on strength

Answer 4

Strength gains decline at a slower rate than the rate at which strength increased

Question 5

Long term detraining - effect on strength profile

Answer 5

Physiological shift from strength profile to aerobic profile

Question 6

Winter & snow (2000) effect of 6 months of detraining

Answer 6

Bone mineral density was decreased

Question 7

Effects of detraining: Health factors

Answer 7

Lead to health problems such as obesity leading to CVD

Question 8

Impact of disuse: Muscle activation

Answer 8

Reduces brachii activity by 36%

Reduces brachioradialis activity by 29%

Question 9

Impact of disuse: Muscle Size - underlying causes

Answer 9

Reduction in the rate of protein synthesis

Loss of muscle fibres

Question 10

Limb suspension and limb unloading

Answer 10

All reduce the mass and strength of the muscle

Question 11

Ageing impact on mobility

Answer 11

Increase mobility limitations

Question 12

Muscle strength after age 50 & 65

Answer 12

Reduces by 12-15% per decade after 50 and 30% per decade after 65

Question 13

What declines earlier skeletal muscle power or muscle strength

Answer 13

Skeletal muscle power

Question 14

Ageing effects in gair

Answer 14

Strength loss
Hip extension flexibility
Tendon adaptation
Balance control

Question 15

Ageing Mechanisms

Answer 15

Increase in type I fibre

Reduction in number of motor neurons

Question 16

Limiting effects of ageing

Answer 16

Best type of training is functional strength training