sprinting / HIIT
When it comes to sprinting and interval programs, I always see them designed for gym equipment like stationary bikes and treadmills. But what about if you are doing a program outside, like in a park or track? I have a nice park near my house and I want to start using it for sprints. Does anyone know of a good program? Like sprint distance or time, rest times between sprints, length of entire workout (through progression from beginner to experienced), etc....
I haven't sprinted extensively for a long time now so I would pretty much be at the beginner level. I can jog forever, but it's dull and just makes me skinny. I'm trying to stay lean while keeping my leg muscles as thick as possible. I use the NROL weight training program. I'm 5'11", 185, 34 years old.
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