Try this workout the next time you're running outside. It could definitely work on a treadmill if that's what you prefer, as long as you don't feel funny about hopping off every minute. Find a decent hill that takes about a minute to run up, and repeat this circuit as many times as you want (I do it about eight times).
- Run uphill for one minute
- Do 10 push-ups, 10 triceps dips, and 10 V crunches (instructions below).
- Run downhill.
- Do 10 push-ups, 10 triceps dips, and 10 V crunches.
Feel free to mix up the strength-training moves. Instead of regular push-ups, I'll bust out Chaturanga push-ups, because it feels so good to arch my spine. Or T push-ups, since they also target the waist. Try lifting one leg up when doing triceps dips, and mix up the ab move with bicycle crunches or scissor abs.
Then afterward, find a nice sturdy tree and do these postrun stretches before grabbing some protein (mmm, this hydrating watermelon smoothie is my new go-to) and cooling off in the shower.