A great exercise for building a strong back and arms. Grab hold of an overhead bar or suspension trainer. Arms should be approximately shoulder width apart. Tense your abs and glutes then smoothly pull your body up past the bar or handles. Keep your shoulders down as you pull. Pause at the top position then lower yourself down under control until your arms are almost fully extended. Use a 41 inch looped resistance band to add assistance if the regular pull up is too hard.