Jude, as someone who studied TKD and wrestling I eventually came to Tai Chi.
My first ten minutes of my first class my muscles were screaming, and all I had to do was stand still! Even an hour or two of the 'relaxing' forms can leave me (and others totally shattered afterwards.And I wouldn't say I'm doing hardcore training.
A Steelwire-Mantis Sifu once said to me, "You think cos TC is a 'soft' MA then the training is soft? Wrong, they have some of the hardest training in KF"
TC is like any art, you can push yourself as far as you want/need to.
See how well I block your punches with my jaw!!
Supporting everyone saying "nuts to cancer"