Are these lucky or magic trainers?

Have yet to find out the true qualities of my new footwear. Have been wearing them at the gym for a few weeks but have not noticed any improvement, but they look a lot better than the worn out pair!
Read today that people should exercise in their fifties and sixties to improve their health in later life. Been there, done that and have had various tee shirts to prove it! Time will tell, but I dare not stop now.