- Medicine ball twist: Stand back-to-back with your partner. Keep your feet planted firmly in place and rotate your torso to meet your partner and pass the ball to him. Then turn to meet him on the other side and take the ball from him. Continue for 15-20 reps.
- Kneeling row with a band: Start in a kneeling position, facing your partner—about 10 feet apart—take the ends of an elastic band. Both of you pull the band back toward your body simultaneously. Hold for two seconds and slowly release. Alternate arms and repeat for 15-20 reps.
- Abdominal plank with a tap: Start in the plank position, head-to-head with your partner. Raise your heads and extend your right hands to clap together. Return to your position and then clap with your left hands. Repeat for 20 reps.
- Partner assisted push-up: While your buddy performs a traditional push-up, you apply additional resistance by pushing down at his shoulders. Let him max out and then switch positions.