Myth #2: Building muscle makes you slower and less flexible.
Contrary to what you might think, building significant muscle mass is faster than slower.
Muscles are responsible for every movement your body makes, from running to jumping to throwing.
Why am I building muscle so slowly?
Your calorie intake: If you don’t eat enough calories every day, you won’t build muscle, even if you eat a lot of protein.
Your lifting routine: If you’re trying to build muscle, you need to know two key strength training concepts: frequency and volume.
Do muscles make you faster?
Quad muscles help you straighten your leg, and lift your knees toward your chest.
Your quads play a significant role in your body for speed training.
The stronger your quads, the faster you’ll run.
Read: Who is the World’s No. 1 Wizard? Is it difficult to run with more muscles?
You can still run a good 10K, half marathon, or marathon while carrying a good amount of extra muscle, but I’d say the extra muscle will hurt you more than help you.
Lifting Do you drive slowly?
1) Weight training is always as heavy as possible and always done slowly.
2) Weight training makes you heavier and this slows you down.
Not all weight training is equal.
Just like you don’t run 400 meters at the same pace as you run a marathon (unless you’re Eliud Kipchoge maybe).
More muscle = more power and more economy of movement, i.e. faster.
However, if that muscle gain is in the context of a general increase in body size (not just muscle gain, but overall weight as well) then you will slow down because you are moving more weight around.
Read: How Culture Shapes and Influences You What Are the Hardest Muscles to Grow?
Does stretching hurt?
Stretching should never be painful.
Pain should not be a part of your stretching routine.