Strength Training for Fat Loss: Why Cardio Isn’t Enough
- It's Your Time to Shine Mentoring
- Mar 30
- 7 min read
For years, the message around fat loss has been simple: Move more, sweat more, do more cardio.
Run longer. Stay on the treadmill. Burn it off.
And while cardio absolutely supports heart health, endurance, and calorie burn, it isn’t the full solution for sustainable fat loss.
Because fat loss isn’t just about what happens during your workout, it’s about what your body does the other 23 hours of the day.
And that’s where strength training becomes the missing piece.
But let’s be honest.
Many people rely on cardio because it feels familiar, safe, and measurable. You sweat, you feel accomplished, and you believe you’ve done what you’re “supposed” to do.
Yet despite all that effort, progress can stall.
Not because you’re doing anything wrong, but because you were given incomplete information.
You can’t outrun your fork… and you definitely can’t outrun your metabolism.
Before Bariatric surgery, I would get on the treadmill and sweat it out and afterwards I always felt good but long term, I wasn’t seeing the results that I wanted to. I thought it meant, I needed to spend longer on the treadmill and I would tire myself out. In fairness, I hate the treadmill personally. I feel so stagnant and it feels like the 45 minutes would go on for days! I also had this preconceived notion that strength training meant I would be full of muscle and “swole” and that was not a look that I strived for so I was always afraid to even attempt it. Had I known then what I know now, those dumbbells and I would have been besties a long time ago!
The Cardio Trap
Cardio burns calories during the workout. That’s true.
But excessive cardio without strength training can lead to:
Muscle loss
A slower metabolism
Increased hunger
Plateaus
Weight loss without meaningful body composition change
This is where frustration builds. You’re working hard but not seeing the transformation you expected.
If sweating alone worked, anxiety would have us all shredded HAHA!
The truth is, cardio helps you burn calories, but strength training helps your body become better at burning calories all day long.
Muscle Is Metabolic Power
Muscle tissue is more metabolically active than fat tissue. That means the more lean muscle you have, the more calories your body burns at rest.
Strength training helps:
Preserve muscle during weight loss
Build new muscle over time
Improve insulin sensitivity
Support hormonal balance
Increase daily energy expenditure
In simple terms:
Strength training doesn’t just burn calories, it changes your metabolism.
And no, strength training doesn’t automatically make you bulky.
If lifting weights made women bulky, every woman carrying groceries would look like a bodybuilder.
Having bariatric surgery over 11 years ago, I relied only on daily walking, nutrition intake and changing my mindset. By the time I lost 175 pounds, I felt on top of the world and unstoppable. Until the day I decided to do a bucket list item and take a pole dancing class and threw my back out. (Most amazing NSV photo for me, but the aftermath was brutal.) It was then I realized that my muscles were used to carrying my body at 350 pounds and not 175 pounds. Yes, aesthetically I was smaller, but in reality my muscles were weak and needed to be strengthened around the core to sustain my new body. Had I started strength training early on, I would never have been on bed rest for 2-3 months and having residual issues for the years that had followed that incident.
The Afterburn Effect
Unlike cardio, strength training continues to burn calories after the workout through the afterburn effect.
Your body uses energy to:
Repair muscle tissue
Restore glycogen
Adapt and grow stronger
That means your workout keeps working even while you’re resting.
Finally! A workout that doesn’t demand your presence 24/7 like your responsibilities do. Adulting is fun, ain’t it??
But the biggest benefit isn’t just metabolic, it’s psychological. Strength training builds proof that your body is strong, capable, and adaptable.
In 2022, I did the 75 Hard challenge and it was one of my greatest accomplishments to date at the time! Strength training every day for 75 days, it did something to my psyche. I wasn’t focused on the scale, but rather I was focused on increasing my weights with my own personal challenges. As the weeks were progressing, I was finding myself with more energy, the clothes were fitting differently and I could actually see some definition in the mirror. The act of working out, at all, is a great mood booster but it does something to your psyche where you start to feel unstoppable and then it oozes out of you, increasing your confidence levels.
Fat Loss vs Weight Loss
The scale measures weight, not progress.
Cardio-only approaches often lead to losing:
Water
Glycogen
Muscle
Strength training shifts the focus to:
Fat reduction
Body Re-composition
Strength gains
Confidence and functional movement
This is why the scale may move slower, but your clothes fit better, your energy improves, and your body changes in ways that actually last.
The scale is a liar with commitment issues. The scale and my ex would be besties!
When I had bariatric surgery, I got down to 175 lbs. A few years later, I had a nervous breakdown from life events and medications, and I woke up one morning 50 pounds heavier in a month and a half. (We’ll save that story for another time) However, years later when I was doing 75 Hard, I finally got back down to 190, 15 pounds away from where I was but I noticed something. My clothes fit better on me at 190 than they did 175. Those old jeans had some room to it, my shape in the mirror was different. It was then I realized that the scale is never a true measure of success. It’s just a compilation of your entire mass. It doesn’t account for muscle, fat, water, etc. So from that day on, I chose to focus more on the reflection in the mirror, than the number on a scale. (Trust me, I am human and there are days where that scale has been threatened to go out the window, but mostly, it’s looked at as just a guide)
Strength Training Builds a Life — Not Just a Smaller Body
Strength training supports far more than fat loss. It improves:
Bone density
Joint health
Injury prevention
Mobility and independence
Confidence and resilience
Longevity
And maybe most importantly, it shifts your identity from someone trying to shrink themselves into someone building themselves.
Because the goal isn’t to be smaller, it’s to be harder to knock down.
After throwing my back out years ago, I didn’t think I would ever be in a place to be strong and be active in the way I had always dreamed of. I decided to focus on my circle of control and that was focusing on the weights increasing, or the reps increasing and just seeing where this journey led me.
Where it led me was a 15k Tough Mudder in St. Louis, MO in 2024. 10 miles, crawling through mud, climbing over walls. What once was a pipe dream photo on a vision board while bed ridden became a reality years later because of the time I spent just making my body stronger all around.
Balance Is the Goal
This isn’t about eliminating cardio, it’s about balance.
A sustainable approach might include:
2–4 strength sessions weekly
Daily movement like walking
Cardio for heart health and enjoyment
Progressive overload over time
Consistency over intensity
You don’t need a six-day punishment schedule. You need a plan you won’t ghost in two weeks.
You don’t need punishment to create results. You need strategy and sustainability.
Strength training doesn’t mean doing dead lifts or flipping tires in the beginning. It could be as simple as squatting up from a chair, doing pushups against the wall. I think the notion of strength training is the visuals we see on social media of people beasting it at the gym and going ham. No, its about starting somewhere, creating your baseline of ability and over time, increasing your output as your strength is increasing.
The Bottom Line
Cardio burns calories. Strength training changes your body.
If fat loss is your goal, strength training provides:
A stronger metabolism
Muscle preservation
Improved body composition
Sustainable results
Confidence and empowerment
And here’s the tough-love truth:
You don’t need to earn results through exhaustion. You earn them through consistency, patience, and building strength.
Your body isn’t broken, it’s just tired of being punished.
Your body isn’t a punishment project, it’s a partnership.
To those reading this right now and telling yourself that you aren’t ready..
Why not? When are we ever truly prepared for change? There’s no rule book on exactly what you need to do. The point is that you are getting up to do SOMETHING that is going to benefit you tomorrow. Like I said, as simple as walking around the house with soup cans, or being consistent with some squats everyday, doing something today will make you smile a lot bigger tomorrow.
If you’ve been living in the cycle of cardio, restriction, frustration, and starting over, hear me when I say this: you are not lazy, broken, or lacking discipline. You were just taught a strategy that was never designed to be sustainable.
Strength training isn’t the scary, intimidating thing you’ve made it out to be. It’s simply the practice of showing your body that it’s capable, adaptable, and worthy of care instead of punishment.
And the real magic?
The moment you realize fat loss isn’t about becoming smaller, it’s about becoming stronger in every sense of the word.
Because confidence doesn’t come from the number on the scale.It comes from the moment you realize your body is not your enemy and instead, it’s your greatest ally.
I want you to pause for a second and picture this: a year from now, you’re stronger. Not just in your arms, legs, or core, but in your mind. You wake up and trust your body. You move with confidence instead of guilt. You see yourself in the mirror and feel pride instead of disappointment.
You’ve built more than muscle. You’ve built resilience. You’ve built consistency. You’ve built proof that you can do hard things and still show up for yourself every single day.
This isn’t about chasing a number on a scale. It’s about reclaiming your life, your energy, your confidence, and your worth.
And here’s the truth: it starts the moment you stop punishing yourself and start partnering with your own body. The only thing standing between you and that stronger, braver version of yourself… is you showing up.
So what are you waiting for?
Strength training isn’t just a workout, it’s a declaration:
I am capable. I am worthy. I am unstoppable.
Namaste,
Sheri
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