I can see why you need to keep fit with your superhero vigilante activities. I’m also a fan of compound exercises myself – more bang for buck!
Long story short – it’s unlikely that these exercises will worsen your bow leg. It’s a common variant in most of the population, and I have some degree of bow leg myself (and I still go to the gym).
The more common worry is placing undue stress on the knee joints due to the biomechanic position in someone with bow legs doing a heavy squat; this could predispose you to injuries and early onset osteoarthritis later on in life.
You’ve rightly figured out intuitively that the lack of pain is a good indicator that you’ve not been unduly stressing your joints so far – it’s important to pay attention to your body and read the signs when going heavy on big exercises.
A good exercise substitute for a squat would be the leg press machine – but I’ve never been a huge fan of machines (I’m sure you are aware too that the range of motion in a single plane with the leg press is less than a proper squat).
Hence I suggest – if you are a serious lifter, it’s probably a good idea to visit a sport medicine doctor to have your gait and posture assessed – the all-clear would probably give you a peace of mind to continue your intensive training regime.
Cheers
