The 4 Most Underused Muscles You Should Be Working Out — But Aren't

Have you ever left a workout class and thought to yourself, I just worked out muscles I never I knew I had? If you ask me, that’s the sign of an awesome workout. The reason why it’s such a good feeling to be sore in places you didn’t expect is because your body feels like it actually did work — instead of going through the usual motions.

It doesn’t take much creativity to go to the gym and do lunges, squats, and sit-ups. But working out the same muscles over and over again will not get your body in the shape you want. You have to trick your body and target some of the most underused muscles you should be working out! Which brings me to today’s topic...

With a little help from Karena and Katrina of Tone It Up, I’m going to be sharing the four muscles you need to focus on the next time you go to the gym.
To perfect your posture, tone your waistline, and more, take a peek below to find out the muscles you should be working on — and why.

1. Your Postural Muscles
Some of the most underused, but most important muscles are the postural muscles. These are responsible for keeping your shoulders back, head tall, and even help to accentuate your waistline.

“Most of us spend the majority of the day hovering over a computer, sitting, driving, and even curving towards our phone, making it rare for us to work on sitting up straight with our shoulders back and heart forward,” say the Tone It Up girls. “Try setting an alarm to go off four times a day for a posture check. You’ll be surprised at how much more confident and slimmer you feel when you sit straight and stand tall!”

2. Your Latissimus Dorsi
The muscles right under your arms in the back, also known as your "lats," are often underused and ignored. They’re great for your posture and building a beautiful "V-taper," a.k.a. creating healthy curves. Plus, it'll work your waistline, too! Great ways to work your lats include swimming, assisted pull-ups, exercise band pull-downs, and bent-over rows.

Related: Why You Should Use Weights When You Work Out
Photo: Courtesy of Tone It Up/
3. Your Lower Back & Gluteal Muscles
“When we hear the word 'core,' we immediately think of abs,” say Karena and Katrina. “But what really contributes to core strength and balance are those lower back muscles (erector spinae) and gluteal muscles.”

Some of the best moves to work these muscles are booty kickbacks and superwoman. Also, anything in bridge pose will get those muscles engaged, too.

4. Your Lower Abs
You can do crunches all day, but to really activate those lower abs, we need to move your lower body. Get these core muscles engaged with leg lifts and hanging leg raises.

There you have it. Did you learn something new? I did! I know what I’ll be doing in the gym tomorrow morning...

What workout gets your muscles the most sore?

I challenge you to work out these four muscles at your next sweat sesh. Let me know how it goes!

Team LC

Next: How To Make Your Crunches Count

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