Running may seem like a total lower-body activity ... Then repeat on opposite side. Why it works: This exercise can power your arm swing by strengthening the shoulder and upper-back muscles ...

Speed skaters swing their arms backward and to the side rather ... keeping the body from twisting," said Tuthill. But after the first few strokes, "the skaters use little or no arm motion on ...

The obliques, which you might have heard being called "side abs ... This single-arm variation adds an element of anti-rotation, leaning on your obliques to keep your torso upright and balanced.

where you place emphasis on one side of the body at a time, is the most effective way to promote symmetry with exercise. By doing unilateral single-leg or single-arm exercises, you can ensure that ...

But Utthita Parsvakonasana (Extended Side Angle ... foot and reach the other arm behind your back and bending your elbow. The position of the top arm encourages your chest and top shoulder ...

When we think of core exercises, standard moves like situps and crunches are often a go-to. But working the side body is an important piece of a well-rounded core routine that is sometimes overlooked.

While running may seem like a total lower body activity ... Repeat on opposite side. Berdan notes that this exercise can power your arm swing by strengthening the shoulder and upper back muscles ...

The arms also swing backward and toward the side, rather than front-to-back, to prevent the body from twisting ... The simple explanation for these arm movements is related to the direction ...