Will too much muscle slow you down if you're an endurance athlete

The Benefits of Endurance Training: Why You Should Give It a Go

Does having an extremely muscular physique decrease your stamina/endurance? - Quora

Will too much muscle slow you down if you're an endurance athlete? - Quora

Does the Cardio 'Interference Effect' Really Slow Your Gains?

Are women more suited to endurance activities?

Will getting into endurance athletics (long distance running) get me very lean? - Quora

Does gaining muscle make you slower? - Quora

Training in the Grey Zone: How to Avoid the Zone 3 Plateau

Does having an extremely muscular physique decrease your stamina/endurance? - Quora