Key takeaways
- One of Leanna’s clients stopped prioritising cardio and focused on strength training, supportive nutrition and a plan that fit her busy life.
- Leanna used to do “cardio for days” herself, believing more was always better.
- Research shows cardio helps reduce body fat, but strength training is what builds lean mass.
- For most busy women, strength training should be the base, with cardio and daily movement on top.
- Fitness shouldn’t feel like another full-time job.
Leanna Chanco recently shared a client story that a lot of women will recognise. Her client stopped prioritising cardio and started giving her body what it actually needed: strength training, nutrition that supported her goals, and a plan that fit her busy schedule as a mom with a career and a family. Have you ever believed that more cardio was the answer?
Leanna has been there too. In her words: “I used to be the girl doing cardio for days, thinking MORE was always better.” The hardest part, she says, was mentally letting go of doing more.
Cardio isn’t the enemy, but it isn’t the whole plan
Let’s be fair to cardio. In an eight-month trial of 119 overweight or obese adults, Willis and colleagues (2012) found that aerobic training reduced body weight and fat mass more than resistance training alone. But only the groups that lifted weights increased their lean mass. The authors concluded that resistance training is needed to build lean mass.
| Training type | Fat and body mass | Lean mass |
|---|---|---|
| Aerobic only | Reduced the most (with combined) | Did not increase |
| Resistance only | Reduced less | Increased |
| Combined | Reduced (similar to aerobic) | Increased |
Source: Willis et al., 2012. So which one shapes your body? The muscle you build is what gives you a firmer, stronger look. That’s why strength training belongs at the base of the plan, not as an afterthought to hours on the treadmill.

What strength training adds
A review by Westcott (2012) summarised research suggesting that about 10 weeks of resistance training may increase lean weight, raise resting metabolic rate and reduce fat weight in adults.
About 10 weeks of resistance training
Average changes reported in a 2012 review (kg)
Source: Westcott, Curr Sports Med Rep, 2012. Review-level averages; individual results vary.

A smarter split for busy weeks
- Strength first: two to four sessions a week, built on progressive lifts.
- Daily movement: walks with the kids, the stairs, a short stroll after meals.
- Cardio as a bonus: a couple of sessions you enjoy, not hours you dread.
- Nutrition that supports the plan: enough protein and enough food to recover.
Feels like less work? That’s the point. You don’t need hours of cardio or to live in the gym. If you’re new to lifting, Leanna’s one-bench upper-body workout is a simple place to start, and Norvic’s guide to building muscle instead of chasing calorie burn explains the bigger picture. If you’ve been cutting food along with adding cardio, read why you may be underfed, not undertrained.
Fitness shouldn’t feel like another full-time job. Don’t do more; do what works. Leanna invites people to message her “SHRED” on Instagram, or you can apply for coaching here.
This article is general education, not medical advice. Check with your doctor before big changes to diet or exercise, especially if you have a medical condition, take medication, or are pregnant or postpartum. Client experiences shared here aren’t a promise of any specific result, and cardio remains important for heart health.
Frequently asked questions
Is cardio bad for fat loss?
No. Research shows cardio can reduce fat mass. The problem is relying on it alone, because it doesn’t build the lean mass that shapes your body.
Should women over 35 lift weights?
Yes. Strength training helps build and keep muscle and strength, which tends to matter more with age. Start with manageable weights and progress steadily.
How much cardio should I do?
Enough to support your heart health and enjoyment, such as a couple of sessions a week plus daily walking. Global guidelines suggest at least 150 minutes of moderate activity weekly.
Why does doing less feel so hard?
Many of us link effort with results. Letting go of “more” takes trust in a plan, which is why Leanna calls it the hardest part.
How many days a week should I lift?
Two to four days works for most busy people. The WHO recommends muscle-strengthening on at least two days a week.
Will I gain weight when I switch to strength training?
The scale may move less than you expect while your body composition improves. Track measurements, photos and strength, not just weight.
Can I still do the cardio I enjoy?
Absolutely. Keep the cardio you love; just make sure strength training and recovery come first.
Sources
- Leanna Chanco. Instagram reel, October 19, 2026. instagram.com/p/DerBR2jBNLQ
- Willis LH, Slentz CA, Bateman LA, et al. Effects of aerobic and/or resistance training on body mass and fat mass in overweight or obese adults. J Appl Physiol. 2012;113(12):1831–1837. doi:10.1152/japplphysiol.01370.2011
- Westcott WL. Resistance training is medicine: effects of strength training on health. Curr Sports Med Rep. 2012;11(4):209–216. doi:10.1249/JSR.0b013e31825dabb8
- World Health Organization. Physical activity (Be He@lthy, Be Mobile). who.int
- Featured image: Photo by Luis Pelegrin on Pexels.
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Written by
Leanna Chanco
Professional Fitness Coach
With about 15 years of coaching experience, Leanna focuses on holistic conditioning, mobility and fat-loss habits that last. She helps clients build routines that fit family life and a busy calendar.
- Conditioning
- Mobility
- Sustainable fat loss












