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Will long distance Running bulk my legs?

1.8K views 18 replies 15 participants last post by  MaggieG  
#1 ·
I really wanna start long distance Running but am afraid it will bulk up my thighs and legs, has this happened to anyone?
I'd much rather lose muscle mass than gain ANY at all, I want Stick legs..
 
#2 · (Edited by Moderator)
These are the legs of long distance runners.

Oh-it-was-hot-out-there.png?width=728


Such legs can become more muscular (though weight training is usually a culprit) and striated, but not really more bulky though more muscular can be viewed as being as such.

In general, sprinting will build muscular bulk more so than longer distance running, but even then weight training tends to be a culprit.
 
#5 ·
Those are the legs of elite long distance runners. They have entire teams that help them become and stay at their racing weight. They also run 100 miles a week. I was a semi-elite long distance runner and most of the non-professionals you see in races are more muscular/normal looking. Some are even overweight. I love the community, and love running distance, but I see lots of cellulite at endurance events. Running makes people hungry. Distance running is also extremely dangerous if you're not eating enough because it enlarges your heart.

And just anecdotally, running helped me get out of the worst of my anorexia. It started off as a way to burn calories, but then I started enjoying it and wanting to run more, which meant eating more. Mentally I was able to justify it since I was burning so many calories. Eventually I got used to eating a little more and having a more athletic build.

These are the legs of long distance runners.

Oh-it-was-hot-out-there.png?width=728


Such legs can become more muscular (though weight training is usually a culprit) and striated, but not really more bulky though more muscular can be viewed as being as such.

In general, sprinting will build muscular bulk more so than longer distance running, but even then weight training tends to be a culprit.
 
#6 ·
i don’t think so. idk how much u r restricting but if u stayed in a slight deficit or maintenance and just made sure to get enough protein in it will tome ur legs but not bulk them. but it’s different for everyone anyway. some people get slimmer legs some don’t
 
#14 ·
I was a competitive distance runner in college and a bit post college. Cardio, especially when you go into a calorie defect, burns both fat and muscle. Elite runners do a lot of lifting and weight training to build the muscle mass they lose. If you aren't doing any weight training and are in a calorie deficit, you can't build muscle through cardio. Just be careful with your protein intake. Losing muscle mass will lower your creatine levels and raise your BUN levels. Additional protein on top of that could seriously effect your kidneys. That's why runners are told to eat carbs. Signs of loosing muscle are extreme weakness and fatigue, then your kidneys shut down. If you are going to eat while distance running, just make sure you aren't doing keto. I went into a hypoglycemic psychosis, and fucked my kidney function.
 
#15 ·
People might be giving you anecdotal responses but essentially depends how your body responds to the exercise and whether you're prone to thigh bulking. Also will obviously depend on your intake.
For me I have the capacity to bulk while doing frequent 7km runs/ 14k runs if my intake permits.
 
#19 ·
Long distance running or walking will give you skinny gorgeous legs, with bits of muscle, very toned.

If you're already overweight, doing a half hearted job at it, so walking or running little, short distances, not often, and then rewarding oneself with a Snickers bar for the 200 kcal you thought you lost, will give you a bit bigger legs.

Mixture of fat and muscle.