Hi, my name is Aksel! I am a 17-year-old cyclist from Norway. Since as long as I can remember the muscle on my thigh called Vastus Lateralis has alway been shorter than normal. Both of my Vastus Lateralis muscles even stops a few centimeters BEFORE the Rectus Femoris muscle, however it should be opposite. I really want to be good at cycling and I bicycle a lot. It is a very big deal for me observing that no one else has that short Vastus Lateralis muscles except for me. My question is
Dear Sir/Madam have gone through your query and read your symptoms. In my opinion, it is highly improbable that your one muscle is short in both legs, surgical lengthening of this is possible, but will it help you, I feel you need to consult an or tho doctor to first find out what the problem exactly is, and how is it affecting you.  I hope that answers your query. If your want any more clarification, contact me back. Chat Doctor.