Congrats to all the NYC Marathon runners! Now that your temporary insanity has worn off and you are left with sore muscles and a medal, allow me to offer a 20min workout that will give you better results -but minus the medal :-(
The Counter-Marathon Cardio Workout:
Celebrity-studded studios from Soulcycle to Barry's Bootcamp utilize interval training as their model. It's been found to be the most efficient way to burn calories and tone muscle. The weather is perfect for this workout & if done at full-intensity you can burn nearly 700 cal!!! The best part is: 20min or less is all it takes.Now get out there and DO IT.