Adding some physical activity to your workday is crucial to counteract the negative effects of sitting for long periods.

5. Do 10-15 repetitions on each leg. Also Read: What makes leg lifts one of the best exercises for abs? Seated extension exercises primarily target the back muscles, particularly the lower back ...

We're giving you Day 1 of our Ultimate Body Recomposition Workout, a leg day designed to build big-time muscle.

From a seated position, slowly lift one leg to full extension and return. Alternate this movement with your other leg and repeat 4 to 5 times on each side. For the next exercise, you will need a ...