Whether you’ve just started training in your late 30s or early 40s, or you’re making a comeback after a hiatus, these tips will help you maximize your muscle growth. Dr. Mike Israetel from Renaissance Periodization shares valuable insights on how to adapt your training for optimal results. Let’s dive into what you must know to build muscle effectively after 40.
1. Importance of Thorough Warm-ups
Careful Warm-ups
As we age, the importance of a proper warm-up cannot be overstated. Unlike your younger years, skipping warm-ups can lead to injuries that take longer to heal. Always perform 2-3 warm-up sets before your first lift and at least one warm-up set before subsequent exercises. This prepares your muscles, joints, and nervous system for the workout ahead, reducing the risk of injury.
2. Focus on Eccentric Control
Slower Eccentrics for Muscle Growth
Eccentric control means focusing on the lowering phase of an exercise. Lower the weight slowly to maximize muscle growth and minimize injury risk. This slower movement reduces the speed of direction change, which is crucial for older lifters. Emphasizing eccentric control helps in building muscle efficiently while keeping your joints safe.

3. Implement Pauses
Pauses at the Bottom
Pausing at the bottom of your lifts can enhance muscle growth by hitting a deep stretch and improving flexibility. This technique helps you maintain control and ensures you’re using the correct muscles. It’s particularly beneficial for those with flexibility challenges, as it promotes better range of motion and mobility .
4. Adjust Your Rep Ranges
Higher Reps, Lower Weight
While sets of 5-10 reps are effective for muscle growth, they also impose higher forces on your body, increasing the risk of injury. For older lifters, prioritizing sets of 10-20 reps and occasionally 20-30 reps can be safer and equally effective for muscle hypertrophy. This approach reduces the likelihood of injuries and supports recovery .
5. Start with Low Volume
Ease into Training
If you’re returning to training or starting anew, begin with low frequencies and volumes. Train each muscle group twice a week with only 1-2 sets per exercise initially. Gradually increase the volume as your body adapts. This method prevents overtraining and allows your body to adjust to the demands of weight lifting .
6. Incremental Increases
Gradual Progression
For older adults, making small, incremental increases in weight or reps is crucial. Avoid jumping more than 5 pounds at a time or more than one rep per set. This slow progression minimizes injury risk while still providing an effective overload to stimulate muscle growth. Over time, these small increases add up to significant strength gains .
7. Regular Deloads
Proactive Deloading
Incorporate deload weeks every 4-6 weeks to reduce fatigue and give your body a break. Even if you don’t feel overly fatigued, deloading helps in recovery and prevents overuse injuries. It’s a strategy to ensure long-term progress without hitting physical setbacks .

8. Monthly Easy Phases
Recovery Months
Every five months, take an easy month where you significantly reduce training volume or take two weeks completely off. This extended rest period helps heal your muscles, joints, and connective tissues, setting you up for another productive training cycle. Use this time to relax and rejuvenate your body .
9. Select Exercises Wisely
Stimulus to Fatigue Ratio
Choose exercises that provide the best muscle stimulus with the least fatigue. Focus on movements that target the muscles effectively without overloading your joints. For example, if low bar squats cause discomfort, opt for leg presses or hack squats instead. Mastering proper technique is vital to ensure safety and efficiency in your workouts .
10. Manage Weight Gain
Controlled Weight Gain
When aiming to gain muscle, do so slowly and deliberately. Gain no more than half a pound per week, and cycle through short gaining and cutting phases to manage body fat. Keeping your body fat in check is crucial for health and continued muscle growth .
11. Monitor Your Health
Regular Health Checks
After gaining phases, get your blood work done to monitor overall health. Ensure your heart, kidneys, liver, and other organs are functioning well. Staying on top of your health allows you to continue training effectively and enjoy the benefits of being fit and strong at any age .
Building muscle after 40 is about smart training, careful progression, and consistent monitoring of your health. By incorporating thorough warm-ups, focusing on eccentric control, implementing pauses, adjusting rep ranges, and choosing exercises wisely, you can achieve significant muscle growth. Remember, consistency and patience are key. Happy lifting!
For more detailed information, check out Dr. Mike’s video on YouTube and additional resources from Renaissance Periodization.
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image sources
- Muscle Building mistakes: Victor Freitas / Unsplash