▸ TRAINER SPOTLIGHT: MARCUS MARTINEZ, C.S.C.S., is a longtime trainer who is known for his creative kettlebell workout programs. He designed the workouts in the new book No Gym Required: kettlebells, which will be available in June at shop.menshealth.com.
JAH WASHINGTON is a Harlem-based trainer and the owner of the Harlem Kettlebell Club. Follow him on Instagram at