SPARTAN PERFORMANCE CROSSFIT SUFFOLK
Steve MC recently did his first Tough Mudder!
Why We Don't Sprint Anymore (Plus A Primal Challenge) "Best of all, sprinting is the best bang for your buck exercise around. It’s over quick, you’re not in agony for hours at a time (and for more hours after the workout), and it gets the job done. One study even concluded that sprint intervals are a “time-efficient strategy to induce” similar muscular and performance benefits as endurance training."—Mark Sisson, Mark's Daily Apple