The Resistance Band Modified Dead Bug is an excellent exercise to strengthen the core while adding resistance for increased intensity. Here’s a step-by-step guide on how to perform it:

1. **Setup**:
– Lie on your back on a mat with your knees bent and feet flat on the floor.
– Attach a resistance band to a sturdy anchor point behind your head, such as a heavy piece of furniture or a door anchor.
– Hold the other end of the band in both hands with your arms extended straight up towards the ceiling.

2. **Execution**:
– Lift your legs off the ground, bringing your knees to a 90-degree angle so your shins are parallel to the floor. This is the starting position.
– Begin the movement by extending your arms overhead. The band should provide resistance as you move your arm and lift shoulder to the knee.
– Focus on keeping your lower back pressed into the mat and your core engaged throughout the movement.
– Bring your arm and leg back to the starting position.

3. **Return**:
– Repeat the movement, ensuring controlled and smooth motion.
– Continue alternating sides for the desired number of repetitions.

4. **Breathing**:
– Inhale as you extend your arm, and exhale as you bring them back to the starting position.

This exercise is great for building core stability and strength while also engaging the shoulders and legs. Make sure to use a resistance band that provides a suitable level of resistance for your strength.