Why does squatting increase preload?

Related questions

1. Why does squatting help with Tetralogy of Fallot?
2. Where does aortic stenosis murmur radiate to?
3. What kind of murmur is aortic stenosis?
4. Does squatting increase preload or afterload?
5. Does aortic stenosis cause atrial fibrillation?
6. Can aortic valve stenosis cause a heart attack?
7. Why does aortic stenosis cause chest pain and dizziness?
8. Why are left sided murmurs louder on expiration?
9. What causes narrowing of the aorta?
10. Where do you listen for aortic stenosis?

Tags

1. #decreases
2. #increases
3. #return
4. #heart
5. #valsalva
6. #table
7. #straining
8. #elevation
9. #during
10. #standing
11. #phase
12. #definitions
13. #venous
14. #passive
15. #squatting
16. #maneuver