This week’s Best Butt Exercise is a nice and easy floor exercise that can be done lying down, but don’t let that fool you into thinking its not super effective, because it is.

These are another butt exercise that can easily be done from the comfort of your own bed! Great exercise for first thing in the morning or just before bed to really get the glutes firing and activate the butt muscles.

Clamshells are also known as external hip rotations, because they involve rotating at the hip. Depending on your flexibility you may have some difficulty getting a large range of motion for this move, but you will improve with practice and time.

Hip mobility is one of the first things to go as you age, so this is a great exercise to not only keep those buns nice and perky, but also to fight the loss of mobility that comes with a sedentary lifestyle.

Exercise: Clamshell External Hip Rotations
Muscles worked: Glutes
Jolie Recommends: 20 reps per side, add a resistance band to work the glutes further once well-practiced.
Difficulty rating: 2
Effectiveness rating: 8

Best Butt Exercise #8: Clamshells

Start lying on the floor on one side with your legs bent at around 90 degrees at the knees. Angle your thighs from your body at around 135 degrees.

Keeping your hips stacked vertically on top of each other, hinge at the hip to bring the knee of your top leg up, opening your legs like a clamshell.

Keep the heels touching each other, and squeeze the glutes to drive the movement. It’s very important not to let your pelvis roll backwards as you raise your upper leg.

Use your free arm and place your hand on your upper glutes, so you can feel the glute muscles working throughout the exercise. This kind of ‘palpating’ for muscles working can actually increase the amount of muscle recruitment and activation.


Perfecting Your Form

  • Keep the spine in a neutral position – neither arched or hunched.
  • Keep the hips stacked vertically one on top of the other, and perfectly still while you perform this movement. This ensures the glutes provide the movement, not the hips.
  • Slow, controlled movement while maintaining a mental focus on the butt muscles will make this exercise most effective.
  • Squeeze the glutes and pause for a moment at the top of the movement to work the butt even more.

Reppin’ It

Slow, controlled movement with perfect form is the key to reaping the benefits of this exercise. Aim for 20 reps per side with no exercise equipment initially, then step it up with a resistance band around your knees to add extra difficulty to the exercise.

Best Butt Exercises: Clamshells
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4 thoughts on “Best Butt Exercises: Clamshells

  • December 19, 2014 at 4:38 pm

    Hey Jolie,
    thanks for sharing so many great butt exercises. I discovered the clamshell a while ago and fell in love with it straight away. I discovered a new muscle in my butt the first time i did it. Seriously I was soooo amazed. I do need to incorporate more butt exercises into my workout routine though, as I have been focusing mostly on balance and cardio at the moment. But I am committing myself to the butt challenge. By next summer my butt will be one to show off ;). I’ll be back soon to get some more exercise tips and ideas.

    • December 19, 2014 at 10:16 pm

      Hi Sarah! I absolutely love these too, it’s funny how effective they can be even though it doesn’t seem like an ‘intense’ exercise! They work really well with a resistance band once you get your form perfect. A mini-band around the knees really steps it up a notch!

    • November 23, 2017 at 2:26 am

      Hi Bryan, you can definitely do something similar to this when sitting down, they’re called Seated Band Abductions, but they work best with a resistance band loop for some resistance. They could potentially be done discreetly while seated at your desk! (If you’re aiming to be somewhat covert about it, I’d probably recommend using an open length of resistance band for this, and just hold the two ends together with your hands above your knees to form a loop – it is easier to set up discreetly than trying to poke both legs through a resistance band loop!)


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