Proper plank alignment can help you perfect your standing and sitting posture, too.

Image Credit: Oscar Wong/Moment/GettyImages Maintaining proper posture isn’t easy. Between sitting at your desk (or couch!) all day and constantly looking down at your smartphone, bad postural habits can sneak up on you. Sadly, bad posture doesn’t just affect your looks — it’s also a precursor to back problems and low-back pain.

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 "When we sit for long hours, hunched over on our computers, it places constant tension on the lower back and weakens other muscles (like glutes and hamstrings)," says Ben Pavlovich, NASM-certified personal trainer specializing in neuromuscular stretching and bodybuilding. "This results in a muscular imbalance, which causes back pain."

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  Fortunately, there's a solution. A back and shoulder workout that incorporates stretching and balances pushing and pulling movements can help mitigate the effects of muscular imbalance by strengthening the weak muscles and lengthening the tight ones, Pavlovich says. "There should be one to two pulling movements for every pushing movement."

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 Ready to go? Here's a balanced back and shoulder workout — put together by Pavlovich — that will help improve your posture and potentially prevent back pain. The best part? You only need your body weight.

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  Check out more of our 20-minute workouts here — we’ve got something for everyone.

Try This 20-Minute Workout for Better Posture Got some existing back issues? We’ve got you covered. Each move comes with an easier variation that even people with back pain can do easily. Enjoy. Move 1: Trunk Rotation Image Credit: Ben Pavlovich/LIVESTRONG.com

        Sets
       
        2
      
        Reps
       
        20

Lie face up on the floor with knees bent. Rotate your legs toward the floor until you feel the stretch in your back. Hold the stretch for 5 seconds and repeat 10 times on each side.

  Show Instructions
  Alternative: Child's Pose   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Time
       
        30 Sec

Kneel on the floor and touch your big toes together. Lean back to sit on your heels separating your knees hip-width apart. Fold forward and reach your arms straight out in front of you along the ground. Hold the position for 30 seconds and repeat.

  Show Instructions
  Move 2: Quad Stretch   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        2
      
        Reps
       
        4
      
        Time
       
        30 Sec

Get into a half-kneeling position. Raise your right foot behind you and grab the foot with your right arm. Hold for 30 seconds. Repeat on the other side.

  Show Instructions
  Alternative: Couch Quad Stretch   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        2
      
        Reps
       
        4
      
        Time
       
        30 Sec

Start from the same half kneeling position as above. Place the inside one foot on the couch and descend into a kneeling position with the other foot on the ground. Lean forward. Hold the stretch for 30 seconds. Perform twice on each leg.

  Show Instructions
  Move 3: Bird Dog   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Start in a tabletop position with shoulders over wrists and hips over knees. While engaging your core, lift your right arm and left leg simultaneously. Extend your right arm with your palm facing down and straighten your left leg, keeping both at the same height as your torso. Hold the position for 2 seconds before slowly returning back to the starting position. Repeat on the other side. Perform 10 reps (5 each side) for 3 total sets.

  Show Instructions
  Alternative: WY Stretch   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Stand with your back touching the wall. Create a W shape with your arms. Slowly extend your arms into a Y shape (pictured above) while squeezing your shoulder blades together. Ensure you keep your back against the wall for the whole movement. Bring your arms back down to a W.

  Show Instructions
  Move 4: Single-Leg Glute Bridge   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Lie on your back on the floor with knees bent and feet flat on the ground. Cross one leg over the other, resting your opposite ankle on opposite thigh. Lift your hips off the ground until your knees, hips and shoulder form a straight line Squeeze your glutes and tighten your abs while avoiding overextending the back. Hold for a count of two, then lower back down with control.

  Show Instructions
  Alternative: Glute Bridge   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Lie on your back on the floor with knees bent and feet flat on the ground. Lift your hips off the ground until your knees, hips and shoulder form a straight line Squeeze your glutes and tighten your abs while avoiding overextending the back. Hold for a count of two, then lower back down with control.

  Show Instructions
  Move 5: Single-Leg Balance   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Stand and balance on one leg and raise the other leg to hip height, bending the knee to 90 degrees. Rotate the hip externally and extend the leg out to the side. Pull back to the front and repeat the movement for 5 reps on each side for 3 sets.

  Show Instructions
  Alternative: Lying Leg Lift   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Lie on the floor on your side with legs stacked on top of each other. Raise the top leg as high as comfortable until you feel the stretch in the hip. Don’t let your hips rotate forward or back. Hold this position for 2 seconds. You should feel the tension in the outer hips. Do all your reps on one side before repeating on the other side.

  Show Instructions
  Move 6: Plank   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Time
       
        30 Sec

Start in a tabletop position but lower onto your forearms with your elbows under your shoulders and knees under hips. Extend your legs out straight so that your heels, hips and shoulders form a straight line. Hold the pose for 30 seconds for 3 sets.

  Show Instructions
  Alternative: Reverse Crunch   Image Credit: Ben Pavlovich/LIVESTRONG.com
      
        Sets
       
        3
      
        Reps
       
        10

Lie down on your back with your knees bent and your arms at your sides. Raise your legs until your shins are perpendicular to the floor. Return slowly to starting position and repeat.

  Show Instructions
  
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Proper plank alignment can help you perfect your standing and sitting posture, too.

Image Credit: Oscar Wong/Moment/GettyImages

Image Credit: Oscar Wong/Moment/GettyImages

Check out more of our 20-minute workouts here — we’ve got something for everyone.

Image Credit: Ben Pavlovich/LIVESTRONG.com

        Sets
       
        2
      
        Reps
       
        20

Lie face up on the floor with knees bent. Rotate your legs toward the floor until you feel the stretch in your back. Hold the stretch for 5 seconds and repeat 10 times on each side.

  Show Instructions

Image Credit: Ben Pavlovich/LIVESTRONG.com

        Sets
       
        2
      
        Reps
       
        20
      


        Sets
       
        3
      
        Time
       
        30 Sec

Kneel on the floor and touch your big toes together. Lean back to sit on your heels separating your knees hip-width apart. Fold forward and reach your arms straight out in front of you along the ground. Hold the position for 30 seconds and repeat.

  Show Instructions
  


        Sets
       
        3
      
        Time
       
        30 Sec
      


        Sets
       
        2
      
        Reps
       
        4
      
        Time
       
        30 Sec

Get into a half-kneeling position. Raise your right foot behind you and grab the foot with your right arm. Hold for 30 seconds. Repeat on the other side.

  Show Instructions
  


        Sets
       
        2
      
        Reps
       
        4
      
        Time
       
        30 Sec

Start from the same half kneeling position as above. Place the inside one foot on the couch and descend into a kneeling position with the other foot on the ground. Lean forward. Hold the stretch for 30 seconds. Perform twice on each leg.

  Show Instructions
  


        Sets
       
        3
      
        Reps
       
        10

Start in a tabletop position with shoulders over wrists and hips over knees. While engaging your core, lift your right arm and left leg simultaneously. Extend your right arm with your palm facing down and straighten your left leg, keeping both at the same height as your torso. Hold the position for 2 seconds before slowly returning back to the starting position. Repeat on the other side. Perform 10 reps (5 each side) for 3 total sets.

  Show Instructions
  


        Sets
       
        3
      
        Reps
       
        10

Stand with your back touching the wall. Create a W shape with your arms. Slowly extend your arms into a Y shape (pictured above) while squeezing your shoulder blades together. Ensure you keep your back against the wall for the whole movement. Bring your arms back down to a W.

  Show Instructions

Lie on your back on the floor with knees bent and feet flat on the ground. Cross one leg over the other, resting your opposite ankle on opposite thigh. Lift your hips off the ground until your knees, hips and shoulder form a straight line Squeeze your glutes and tighten your abs while avoiding overextending the back. Hold for a count of two, then lower back down with control.

  Show Instructions

Lie on your back on the floor with knees bent and feet flat on the ground. Lift your hips off the ground until your knees, hips and shoulder form a straight line Squeeze your glutes and tighten your abs while avoiding overextending the back. Hold for a count of two, then lower back down with control.

  Show Instructions

Stand and balance on one leg and raise the other leg to hip height, bending the knee to 90 degrees. Rotate the hip externally and extend the leg out to the side. Pull back to the front and repeat the movement for 5 reps on each side for 3 sets.

  Show Instructions

Lie on the floor on your side with legs stacked on top of each other. Raise the top leg as high as comfortable until you feel the stretch in the hip. Don’t let your hips rotate forward or back. Hold this position for 2 seconds. You should feel the tension in the outer hips. Do all your reps on one side before repeating on the other side.

  Show Instructions

Start in a tabletop position but lower onto your forearms with your elbows under your shoulders and knees under hips. Extend your legs out straight so that your heels, hips and shoulders form a straight line. Hold the pose for 30 seconds for 3 sets.

  Show Instructions

Lie down on your back with your knees bent and your arms at your sides. Raise your legs until your shins are perpendicular to the floor. Return slowly to starting position and repeat.

  Show Instructions