Hemsworth's workout routine also included various pull - ups on a bar or with rings, where he alternated between using underhand grip, overhand grip, mixed grip, wide grip and narrow grip. (fitnessandpower.com)
Take a close - grip, underhand grip on a lat bar attached to the high pulley of a lat pull - down station, and keep your chest up and lower back arched as you pull the bar down to your chest. (fitnessandpower.com)
1a Close grip chin ups Grab a pull up bar with a shoulder - width underhand grip and hang at full stretch. (fitnessandpower.com)