Why More Adults Are Choosing Strength Training Over Traditional Cardio

The fitness shift isn’t really about choosing one over the other

For years, getting in shape meant spending hours on a treadmill, elliptical, or stationary bike.

Cardio still matters. Aerobic activity supports cardiovascular health and remains a core part of the physical activity guidelines for adults.

But more adults are recognizing that there is another piece of fitness they can’t afford to ignore: strength training.

The shift makes sense, especially for adults entering their 40s, 50s, and beyond.

You don’t just want to burn calories today. You want to maintain muscle, stay capable, and keep doing the things you enjoy as you get older.

Current research continues to support that approach.

Strength training is becoming a bigger priority

The latest U.S. physical activity guidelines recommend adults get 150 to 300 minutes of moderate aerobic activity each week plus muscle-strengthening activity at least two days per week. Yet only 32.9% of U.S. adults met the muscle-strengthening recommendation in 2024. (Health.gov)

That means most adults still aren’t doing enough strength work.

And that’s a problem because muscle isn’t just about looking fit.

It’s about remaining physically capable.

Muscle matters more as you get older

Aging naturally changes muscle mass and strength. But getting older doesn’t mean you have to accept becoming weaker and less capable.

Recent research reinforces this.

A 2025 systematic review and network meta-analysis of 151 randomized trials found that resistance training in older adults improves physical function, lean body mass, and strength. (PubMed)

Another recent review found that adults 60 and older can still experience meaningful muscle growth from resistance training, with studies showing measurable hypertrophy across different age groups. (PubMed)

That’s important because strength gives you something cardio alone can’t provide in the same way: the ability to produce force.

Carrying groceries.

Getting up from the floor.

Climbing stairs.

Picking up your grandkids.

Moving furniture.

Playing with your kids.

These are fitness skills that matter outside the gym.

Why endless cardio isn’t the complete answer

Cardio isn’t bad.

In fact, it’s an important part of a healthy training program.

The problem comes when cardio becomes the entire program, especially for adults who want to maintain muscle and physical function.

You can spend hours trying to burn calories without addressing the strength and muscle you need for everyday life.

That’s why many adults are moving toward a more balanced approach: strength training as a foundation, with cardiovascular conditioning supporting it.

The goal isn’t to eliminate cardio.

It’s to stop treating exhaustion as the definition of fitness.

Strength training over 40 makes practical sense

For adults over 40, the goal shouldn’t simply be becoming smaller.

It should be becoming stronger and more capable.

A well-designed strength program can help you build muscle, improve physical function, and maintain the capacity to handle everyday demands.

And you don’t need to train like a competitive athlete to benefit.

Two or three focused strength sessions each week can provide a strong foundation when paired with regular movement and cardiovascular activity.

The latest research from the American College of Sports Medicine also continues to emphasize resistance training as a key tool for improving muscle function, hypertrophy, and physical performance in healthy adults. (PubMed)

Build a body that can keep up with your life

At Shark Bite Fitness, we don’t believe fitness should be about spending endless hours doing workouts you hate.

We help adults build strength, improve conditioning, and develop the physical capacity to enjoy life outside the gym.

You don’t need to become a bodybuilder.

You need to become stronger than you were yesterday and maintain that strength for the years ahead.

If you’re over 40 and ready to stop guessing about what your body needs, book your Free No-Sweat Intro at Shark Bite Fitness today.

We’ll help you build a structured training plan around your goals, fitness level, and schedule.

Because getting older is inevitable.

Getting weaker doesn’t have to be.