I've. No idea what casual cycling is? Or that it's even a thing, but cycling is all push and no pull,( that's why they are called push bikes) it's a bit better if you use clip on peddles, but you've still got a forward bend on your back and shoulders rounded forward and your head bent at a silly angle , it's much same as being slump over your desk for hours, if by casual you mnmean no great time effort or distanc e, then you may not notice it, but then you won't notice much benefit either,I have introduced casual cycling and walking long distances to my exercise routine over the last five years and have experienced great benefits. I made no mention of road cycling or mountain biking. I use to be a runner many years ago and have no more desire to run and suffer the impact of sore joints.I do a lot of stretching as well before biking and martial arts. I know many people that use to run that have switched to biking and find it easier on the joints than running.