6 Challenging Partner Exercises

This two-person workout introduces some (friendly!) competition to keep you motivated.

Remember the buddy system? It’s not just for third-grade field trips: There is some evidence that partnering up to get in shape can keep you motivated, make your workout more fun, and even “boost your intensity, since it sparks friendly competition,” says Don Scott, a certified personal trainer with Jim Karas Personal Training, in New York and Chicago. Find a fitness-minded friend and complete this circuit two times through, three times a week.