1. Are you looking to incorporate sprinting into your training program?
2. Are you looking to build lean muscle faster?
3. Are you interested in speeding up your recovery?
4. Are you familiar with anaerobic work capacity?
5. Are you looking for a way to give your conditioning a significant upgrade? 

When it comes to looking at what works in terms of  building lean muscle mass I’m always quick to point out what the evidence shows. If you’re not convinced that sprinting can build muscle, or contribute to the development of lean muscle then just take a look at people that do it for sport and competition.