Do bigger breasts make you a slower runner

Question

I am 14, 4'7In (139cm) And I wear a 34D. ever since I became a C cup in 7th grade I noticed that I was getting slower and tired while running, so does my breasts size affect my stamina or am I just getting lazy?

Answer

Nope. E/F cup and doing great. Fitness makes you faster or slower.

Answer

Are you absolutely sure you’re getting slower, or are you more focused on your breasts movement while running and that slows you down? I was a D cup by 6th grade, DD by 8th, and if I was running I’d be so hyper focused on my boobs bouncing that I’d be slow. I think if you wore a good tight sports bra you’d have the support and your body weight would be distributed better, you want something tight that will hold them close to your chest, some people wear two sports bras to hold them tight to the chest. When you wear a looser bra they tend to be heavier and throw your weight off, and it feels like you’re carrying weights on your chest. It could possibly be from your breasts growing, but if you stay active you tend to get used to the weight gain easier

Answer

Nah, Im a E cup and it dose not slow me down as long as I have on a good sports bra.

Answer

Probably just getting out of shape or not eating properly and staying hydrated. I mean. I played all kinds of sports in school with dozens of other girls.. and none of us just magically got worse at sports  because we got boobs.  We just put on a sports bra and kept going.
My guess is you're either not staying active enough or you aren't fueling your body properly.

Answer

Thank you everyone

Do bigger breasts make you a slower runner

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