Back extensions are an exercise that helps strengthen your back and core. Here are several versions and tips for effectively performing them. Share on Pinterest A strong core isn’t just about the abs.

Directional preference exercises are determined during the physical examination of patients with back pain and referred pain from the spine with the use of repeated movements by the patient. There ...

A mixed model analysis showed no significant differences between left and right muscle activity for each exercise, therefore mean muscle activity of both sides for each muscle and exercise was ...