Updated Strength Training Guidelines

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After 17 years, the American College of Sports Medicine (ACSM) has released updated strength training guidelines, reflecting an explosion of new research and a shift toward a more flexible, personalized approach to fitness.

What’s changed and what does it mean for you?

At its core, the new guidance reinforces that strength training remains essential for health, longevity, and performance. Adults, especially older adults, should still train all major muscle groups at least 2 days per week at moderate or higher intensity.

But beyond that, the biggest update is this:

There is no longer just one “right way” to train.

Key Updates to Know

More flexibility with intensity

Previous guidelines emphasized lifting approx. 70% of your maximum. The new model allows for a broader range of loads, as long as you’re challenging your muscles effectively.

Consistency over perfection

The updated research emphasizes that sticking with a program matters more than following a rigid formula.

Multiple paths to results

Strength, hypertrophy, and endurance can all be improved using different rep ranges, loads, and methods.

Individualization is key

Programs should be tailored to your goals and experience. Your trainer can help you manipulate training variables, including frequency, intensity, duration, type of exercise, volume, and progression.

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Turn science into simple and practical action

Train 2–4 days per week, focusing on all major muscle groups.

Work at a challenging intensity. You should feel fatigue by the end of each set.

Use a variety of rep ranges (anywhere from 5–20 reps can be effective).

Focus on good technique first, then gradually increase weight.

Progress gradually. Add reps, weight, or sets as you get stronger.

Listen to your body. Recovery is an important part of the program.

Stay consistent. This is the most important factor of all.

The new ACSM guidelines are incredibly empowering. They move us away from rigid “rules” and toward a more realistic, sustainable approach to fitness and overall health.

You don’t need to….

Have the perfect program.

Train like a bodybuilder.

Lift maximal weights to get results.

You do need a plan that ….

Challenges you

Fits your life

Keeps you coming back

Because in the end, the science is clear: the people who win in fitness are not the ones who follow the most complicated program. They’re the ones who show up, stay consistent, and keep progressing.

Strength training isn’t just about building muscle, it’s about building a stronger, more resilient life.

Yours in health & fitness,
Sherri McMillan

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