NEW YORK (Reuters) - TRX, hatched when a U. S. Navy Seal improvised a fitness tool from his parachute webbing, has become the workout darling of personal trainers, group fitness instructors and home ...

Is TRX the only fitness equipment on the market that utilizes body weight? No. From the ancient beginning of Yoga to decades-old Pilates, to traditional squats, lunges, push-ups, sit-ups and planks, ...

Fitness tests often use a modified push-up to assess women’s upper-body strength, but most healthy women are capable of performing full push-ups. (Video: Alexa Juliana Ard / The Washington Post) What ...