I doubt the original poster was asking the differences between the degrees of running [as a sport]. But, from an exercising perspective, if you are a serious "runner" you would note the difference between a "jog" and a "run".
Thanks for all of your input.
So basically they are different meanings from an exercising perspective to native speakers , aren't they?
Someone else told me that they are the same meaning ,but I have reservatons about it .
So I posted my doubt.