Question

Briefly explain the relationship between body position and heart rate, breathing rate, and tidal volume.

Answer 1

The heart rate is the most in standing position and the least in supine position and sitting position has in between.

The supine position has lowest breath rate and standing has medium but sitting has the most breath rate because it affect the expand of rib cage because lower abdomen give pressure on the cage.

Tidal volume is the most in supine position and medium in standing position but most in sitting condition.

Because the intracage pressure is more in sitting position that's why expansion can not be fulfilled and thus tidal volume is reduced.