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By Matt Evans published 22 June 22

I use Alexa to time my wall sits at home

One of the best exercises you can do for your legs and core is absolutely free, requires no equipment, and can be done while watching TV at home. What’s more, there’s no movement, additional load, or impact on your joints, making it perfect for beginner exercisers, seniors, and those with joint problems preventing them from doing other forms of exercise.

The wall sit is a fantastic calisthenic exercise, and very underrated in my book. I made great use of it during COVID, when all the gyms were closed and I was getting bored repping out bodyweight squats. It’s an isometric exercise, which means it relies on holding a static position to induce tension in the muscles, in the same way you might hold a plank position to train your core. 

In one study published in the International Journal of Sports Medicine (opens in new tab) , isometric exercises like this were found to be beneficial in improving muscle strength in people with limited mobility, perhaps even more so than traditional “dynamic” strength training. 

Because it doesn’t involve your knees and hips moving at all, has no need to add extra weight onto your back, and doesn’t involve your feet impacting the floor in the way running or jumping exercises might, it’s incredibly forgiving. However, it's still a tough workout, and although you might not be racking up any steps on your best fitness tracker, you'll probably still be able to see your heart rate spike after a few sets. 

To get started, simply lean your back against a wall and slide down. Your feet should be out in front of you, shoulder-width apart, and your thighs should be parallel to the floor. Keep your shoulders touching the wall, and look straight ahead. The TV makes an excellent focal point, and a welcome distraction. 

Now, here’s the tricky bit: you have to hold the position for a specific amount of time. If you’ve never tried this before, or are very new to strength training, 15-30 seconds might be an achievable goal for you. Once you get into this position, it’s quite fiddly to play with your phone and get the timer set up, so I just used the Amazon Echo Dot in my living room to ask Alexa to set a one-minute timer. Then you just hold the position for the required amount of time.

Easier said than done. Very quickly, your quads, glutes, and hamstrings are going to light up. For an added benefit, make sure you’re looking straight ahead, put your hands behind your head or extend them out in front of you, suck in your stomach slightly and tense your abdominal muscles. 

I’m not going to lie to you, it sucks. Every time I hear Alexa’s dulcet tones say “okay, one minute, starting now,” I find myself gritting my teeth in anticipation of the tough time ahead of me. The soft alarm sound at the end of that minute was a lifeline, but it felt like it took forever to get there. It had gotten to the point where I began to dislike Alexa’s voice, because I associated it with those gritty wall sits. 

However, it’s still far more effective than setting a timer yourself, and if you can use a voice assistant with your phone and the best workout headphones outdoors, it’s more effective to set timers that way to keep your focus on form. It's worth keeping an eye on the Amazon Prime Day sales if you're keen to control your isometric workouts with ease. 

Once I was back in the gym, I found I hadn’t lost much strength in my legs and butt even after my long absence from the squat rack. All those wall sits actually augmented my running: research published in the journal Medicine & Science in Sports & Exercise suggests stronger glutes and quads are a factor in top running speed. 

Whether it was a coincidence or not, I hit a personal half-marathon best after training with this unconventional, underrated method at home. 

If you’re ever thinking you should really be doing some exercise while watching Netflix at home, try three sets of 30-second wall sits to get you started. Just don’t blame me if you begin to resent your best smart speaker afterwards. 

With a Master’s Degree in journalism from Cardiff University, Matt started his digital journalism career at Men’s Health and stayed on for over two years, where he earned his stripes in health and fitness reporting. Since then, his byline has appeared in a wide variety of publications and sites including Runner's World, Women's Health, Men's Fitness, LiveScience and Fit&Well on everything from exercise, to nutrition, to mental health, alongside covering extreme sports for Red Bull. 

Stretching is Matt’s top fitness tip. He originally discovered exercise through martial arts, holding a black belt in Karate, and trained for many years in kickboxing. During COVID he also fell in love with yoga, as it combined martial-arts style stretching with a bit of personal space.

When he’s not training or writing about health and fitness, he can be found reading doorstop-thick fantasy books with lots of fictional maps in them.

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