More ideas from Erwin
What if Everybody Ran?

What if everybody ran? Athletic apparel company Mizuno partnered with scientists at the University of North Carolina to find out what a nation of runners might look like, and the results are pretty incredible! Food for thought.

25 Ways to Run Faster, Stat

Try these interval workout ideas the next time it's time for a cardio workout. A walk/run treadmill workout A walk, run, and sprint workout A interval exercise bike workout A treadmill interval workout with playlist An

The 100 Most Motivating Workout Songs of All Time via @SparkPeople

100 Inspiring Workout songs, Get motivated, :These songs combine the best beats with the most inspirational lyrics to motivate you to exercise!