Problems And Solutions Of VR

Question 1

Why is an active recovery important

Answer 1

At the end of exercise the blood pools in the legs which causes a feeling of dizziness

Question 2

What is the first problem with VR

Answer 2

The blood pressure in the veins that return blood back to the heart is 0

Question 3

What is the second problem with VR

Answer 3

Most of SV is in the legs so has-to work against gravity to return to the heart

Question 4

What is the first solution for VR

Answer 4

There are pocket valves in the larger veins to prevent the back flow of blood

Question 5

What is the second solution of VR

Answer 5

The skeletal muscle pump. When skeletal muscles contract they widen and press against vein walls with pushes blood up towards the heart from the legs

Question 6

What is the third solution of VR

Answer 6

Smooth muscle. In the vein walls there are some smooth muscle which allows for some vasoconstriction which helps move blood up towards the heart

Question 7

What is the fourth solution of VR

Answer 7

Respiratory pump. During inspiration, diaphragm flattens, decreasing volume and increasing pressure in abdomen to below pressure in the thoracic cavity. This pressure differential pulls blood up towards the heart

Question 8

What the fifth solution to VR

Answer 8

Gravity from above the heart. Gravity aids blood returning to the heart from above the heart