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Las Vegas, NV
A 45-year-old female asked:

i'm getting a recumbent exercise bike today for safe, no impact exercise at 6mos pregnant. is there a max of ride time i should limit to for safety?

1 doctor answer2 doctors weighed in
Dr. Brian Park
Obstetrics and Gynecology 32 years experience
30 to 45 minutes: The maximum recommended time for aerobic exercise is between 30 to 45 minutes of exercise three to 4 times a week. Also, try to keep your maximum heart rate below 135 to 140 beats per minute.

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A 40-year-old female asked:

Why am I sometimes extremely dizzy after exercise? I work out frequently, eat well, drink more than 8x8 glasses of water a day.

2 doctor answers2 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Can be other causes: Dizziness with exercise doesn't just happen with inadequate hydration. If a person is well hydrated, and still gets dizzy, her doctor can evaluate. Sometimes there are circulation problems, such as not enough blood flow to the brain under certain conditions or activities. There can be heart problems, or not enough red blood cells (anemia), etc...

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Last updated Dec 3, 2014

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