Chair exercises to tighten upper arms after 55, from a certified personal trainer, with joint-friendly form cues and faster tricep burn.

From squat jumps to snatches, you’d think that all you really need in your strength-training script to power your runs are exercises that require your muscles to move. After all, running itself is a ...

Whenever you’re feeling stiffness or pain in your joints from your Rheumatoid Arthritis, your first instinct might be to just ...

A strong set of shoulders is important for an active daily life. Not only does the shoulder joint have the largest range of motion in the body, but the muscles of the shoulder girdle are also ...

“An isometric exercise is a static exercise where you hold a muscular contraction without movement, as opposed to a dynamic exercise where the muscles are able to contract from their longest to their ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. While many types of ...

While ripped arms look good, strong shoulders will help you move through life easier. The muscles in your shoulders are involved in every upper body movement, whether you realize it or not. Every ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Your shoulders are an ...

Your typical shoulder workout may be full of overhead presses and lateral raises. But banded internal and external shoulder rotations are one underrated exercise duo you don't want to leave out of ...