6 doctors weighed in:
What are the exercises that improve cardiorespiratory fitness?
6 doctors weighed in

Dr. Judy Orton
Pediatrics
3 doctors agree
In brief: Aerobic exercise
Aerobic exercise improves cardiorespiratory fitness.
Brisk walks, cycling, swimming, running, etc - activities that get you breathing harder and increases your heart rate done at apace that can be sustained for at least 20 minutes without a break. If you're just starting out it may only be a walk but as your fitness improves it moves to a fast arm pumping walk lasting up to an hour.

In brief: Aerobic exercise
Aerobic exercise improves cardiorespiratory fitness.
Brisk walks, cycling, swimming, running, etc - activities that get you breathing harder and increases your heart rate done at apace that can be sustained for at least 20 minutes without a break. If you're just starting out it may only be a walk but as your fitness improves it moves to a fast arm pumping walk lasting up to an hour.
Dr. Judy Orton
Dr. Judy Orton
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Dr. John Thaler
Dentistry - Prosthodontics
In brief: Heart rate related
Many exercise modalities will do.
The key is the heart rate achieved and maintained for a period of time. One level will maintain your fitness. To improve it, you might increase the duration or intensity or both. Results will differ. People succeed with running, cycling, swimming, elliptical, skating, speed walking, etc. Good luck.

In brief: Heart rate related
Many exercise modalities will do.
The key is the heart rate achieved and maintained for a period of time. One level will maintain your fitness. To improve it, you might increase the duration or intensity or both. Results will differ. People succeed with running, cycling, swimming, elliptical, skating, speed walking, etc. Good luck.
Dr. John Thaler
Dr. John Thaler
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Dr. James Henning
Anesthesiology
In brief: Aerobic activity
Exercises that improve the body's ability to take in, pump and deliver life-sustaining oxygen throughout the body.
Brisk walking, jogging and running, swimming, cycling, plyometric (jumping) movements involving large muscle groups, yoga involving continuous movement and isometric contraction, martial arts...These increase blood flow, intake of oxygen and heart pumping action.

In brief: Aerobic activity
Exercises that improve the body's ability to take in, pump and deliver life-sustaining oxygen throughout the body.
Brisk walking, jogging and running, swimming, cycling, plyometric (jumping) movements involving large muscle groups, yoga involving continuous movement and isometric contraction, martial arts...These increase blood flow, intake of oxygen and heart pumping action.
Dr. James Henning
Dr. James Henning
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