Home or Gym: Here's What the Research Actually Says

Effort matters more than where you train — and why community might matter most.

Hey Team! Welcome to another special edition of Athletic Aging, where I team up with Dr. Heather Hausenblas once again to discuss how training at home can be a great way for beginners to become familiar with weight training and serve as a bridge when other barriers prevent us from training with our fitness community. Enjoy this one!                   -Dr. Carla

In 2020, my gym closed. Like everyone, I adapted. I had no choice.

I cleared a corner of my garage, pulled up YouTube, and hit play. Bodyweight squats. Lunges. A lot of sweating in front of a laptop screen.

I tolerated it. I missed the gym. There was nowhere else to go.

Turns out, I wasn’t compromising as much as I thought.

For this one, I brought in Dr. Carla DiGirolamo again — she’s a physician, CrossFit trainer, and trains the way she prescribes. Here’s what we found.

Most people in the gym are guessing. A 2025 survey found that gym-goers correctly identified only 36% of basic resistance training facts.

Two myths most believed:

• That men benefit more from lifting than women. They don’t — gains are similar.

• That free weights beat machines for muscle growth. No meaningful difference.

More level than you’d expect.

The setting doesn’t matter much. The effort does.

The key driver of muscle growth is effort, not equipment. Heavier loads have a slight edge for maximum strength. But for most goals, how hard you push matters more than what you’re pushing.

The largest analysis of resistance training ever conducted — 137 systematic reviews, more than 30,000 participants — confirmed it. Resistance bands, free weights, bodyweight, home, gym. Equipment type didn’t consistently impact results.

Your garage qualifies.

The Real Barrier

The closer the gym, the more you go. Research consistently shows that easy access is one of the strongest predictors of whether people actually exercise. The program you do beats the perfect program you don’t.

For most people, home removes the biggest barrier: getting there.

But Community Matters

People who train with others stick with it longer. The research is consistent on this.

CrossFit figured this out early. During COVID, online fitness communities exploded. Many stuck around because the connection was real.

The home gym isn’t the end goal. For a lot of people, it’s where confidence gets built — before walking into a room full of people moving weight.

It’s a bridge.

And when life gets in the way — travel, bad weeks, no time — it’s what keeps the streak alive.

The Real Limitations

Home training works. But it has limits.

Progressive overload is harder. That means gradually adding more weight or resistance over time. Adding five pounds to a barbell is simple. Progressing a bodyweight squat means doing a harder version of it — like a single-leg squat.

Lower body is trickier. Bands alone don’t load the legs the way free weights do. Research shows lower muscle activation during band-only squats. Long-term, you need more. A kettlebell or adjustable dumbbells change that.

A trainer helps more than you think. A 2024 study found that trainer-guided training produced faster results, better injury prevention, and greater lower-body strength gains than solo training. You don’t need one every session — but following a structured program makes a real difference.

How to Set Up a Home Gym

You don’t need much. You need the right things.

If you only buy one thing: A single kettlebell. Squat, hinge, press, carry. Small space. Low cost. Surprisingly complete. Women, start at 12kg (26lb). Ready to be challenged? Go 16kg (35lb).

Starting out: Kettlebells — pairs of 5, 10, 15, and 20 pounds. A solid program. That’s it. Try Kettlebell Athletes.

Next level:

• Adjustable dumbbells

• Step box (6–18 inches)

• Doorway pull-up bar + resistance bands

• Jump rope

• Flat bench

Advanced: All of the above, plus an Olympic barbell set and squat rack.

Programs Worth Knowing

• Street Parking — Fitness for real life

• Empower — Training for every stage of life

• Power Happens — Built for midlife women

• Athletic Aging Weekly Workout Series — Dr. Carla DiGirolamo

What the Research Recommends

The 2026 ACSM position stand is specific:

• At least twice a week

• 2–3 sets per exercise

• Heavy enough that you can only do 6–10 reps

• Hit all major muscle groups

• Stop 2–3 reps short of failure — grinding to failure doesn’t improve results and raises injury risk

• Add load over time — whatever that looks like in your space

The zip code is optional.

The Bottom Line

Home or gym. Doesn’t matter much. Just lift.

References

1. https://pubmed.ncbi.nlm.nih.gov/39870800/

2. https://pubmed.ncbi.nlm.nih.gov/37133323/

3. https://pubmed.ncbi.nlm.nih.gov/37582807/

4. https://pmc.ncbi.nlm.nih.gov/articles/PMC8449772/

5. https://www.sciencedirect.com/science/article/pii/S2405844024046474

About the Co-Author:

Heather Hausenblas, PhD, is a health researcher, award-winning scientist, and best-selling author. She's ranked in the top 1% of the world’s most influential researchers. Her Substack, Wellness Discovery, is for people who want real health—grounded in science.

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In case you missed it……

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This has been the subject of some very intense discussion recently. Join me and the awesome and amazing Selene Yeager for Hit Play Not Pause Episode 253 where we take a deep dive into the science behind this debate.