1. Begin in a standard push-up position with your hands shoulder-width apart, body straight, and feet together.

2. Lower your body to the ground until your torso is actually on the floor.

3. Pull your hands off the floor for just a second.

4. Place your hands back on the floor and perform a push-up.

5. Repeat for the desired number of reps.

1. Start in a plank position with your hands placed slightly wider than shoulder-width apart and your feet together or hip-width apart.

2. Lower your body down towards the ground by bending your elbows and keeping your core engaged. Keep your body in a straight line.

3. Push your body back up to the starting position by straightening your arms.

4. Repeat the movement for the desired number of repetitions.

1. Using a sturdy box or other object, get into push-up position with one hand on the box and the other hand on the floor. Your hands should be shoulder-width apart.

2. Lower yourself down as you would in a typical push-up, focusing on putting more of a bend in the elbow of the arm on the box than your floor-arm. The goal is to keep your chest as close to parallel with the ground as you can.

3. Push yourself back up, place the floor-hand on the box and move the box-hand onto the floor.

1. Position yourself facing the ground with your feet raised on an elevated surface such as a bench or step, while placing your hands on the ground slightly wider than shoulder-width apart.

2. Engage your core and keep your body in a straight line from your head to your heels.

3. Lower your body by bending your elbows, keeping them close to your body, until your chest nearly touches the ground.

4. Push back up to the starting position by extending your elbows, while maintaining a straight line from your head to your heels.

5. Repeat for the desired number of reps.

1. Lie on your back with your legs extended and your arms by your sides.

2. Keeping your lower back pressed into the floor, engage your core and lift both legs towards the ceiling, using your abdominal muscles.

3. Slowly lower your legs back down towards the floor, maintaining control and avoiding any arching in your lower back.

4. Repeat the movement for the desired number of repetitions.

1. Lie on your back with your knees bent and your hands lightly touching the sides of your head. Lift your feet off the ground and bring your knees towards your chest.

2. Straighten your left leg while simultaneously rotating your torso, bringing your left elbow towards your right knee. Keep your shoulder blades off the ground.

3. Return to the starting position and repeat on the other side, straightening your right leg while bringing your right elbow towards your left knee.

4. Continue alternating sides in a fluid and controlled motion.

5. Complete the desired number of reps or time, then release your head, neck, and shoulders back to the ground, and lower your legs back to the starting position.

1. Sit on the floor with your knees bent and your feet flat on the ground. Lean back slightly, engaging your core.

2. Lift your feet off the ground, balancing on your sit bones.

3. Twist your torso to the right, bringing your hands or weight towards the right side of your body.

4. Return to the center and twist to the left side, bringing your hands or weight towards the left side of your body.

5. Continue alternating sides in a fluid and controlled motion, engaging your core throughout.

1. Start in a push-up position with your hands directly under your shoulders and your body in a straight line from head-to-toe. Lower yourself down to your forearms.

2. Engage your core, glutes, and leg muscles to hold the position, ensuring your hips are neither too high nor too low.

3. Keep your neck aligned with your spine and your gaze towards the floor.

4. Hold the plank for the desired duration, maintaining proper form and breathing rhythm.