What is a SIT workout?“SIT stands for sprint interval training,” Laura Morris, a certified personal trainer and nutrition ...

Sprint interval training is another form people are trying, and besides the fact that it keeps your runs interesting, experts say it could be beneficial for everything from fat-burning to ...

Pushing your body to its limits is the latest workout trend – here’s how to sprint safely. As the name suggests, it involves intervals of work and rest. “SIT is a derivative of HIIT ...