How to Build Muscle and Strength as You Age: 3 Evidence-Based Strategies

Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician

Published: March 3, 2026 | Last Updated: March 3, 2026

Maintaining muscle mass and strength becomes increasingly difficult with every passing decade. In clinical practice, I see the consequences of age-related muscle loss — known as sarcopenia — on a regular basis. Sarcopenia is not merely a cosmetic concern. It is associated with higher rates of falls, loss of independence, difficulty performing daily activities, and an increased risk of chronic conditions including type 2 diabetes, cardiovascular disease, and overall mortality. The good news is that sarcopenia is not inevitable, and there are evidence-based strategies that can meaningfully combat it at any age.

In this article, I outline three critically important strategies — resistance training, protein optimization, and targeted supplementation — that can help you maintain and even improve muscle mass and strength as you age.

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What Is Sarcopenia and Why Does It Matter?

Sarcopenia is the progressive loss of skeletal muscle mass, strength, and physical performance that occurs with aging. MRI imaging illustrates this starkly: the cross-section of a healthy 30-year-old's thigh is dominated by dense muscle tissue, while the same view in a 70-year-old with sarcopenia shows dramatically reduced muscle mass, with bone surrounded by adipose (fatty) tissue.

The health implications are significant. Individuals with sarcopenia face higher risks of falls, fractures, loss of independence, weakened immune function, and increased mortality. Understanding how to prevent and reverse sarcopenia is essential for long-term health and quality of life.

Strategy 1: Resistance Training and Progressive Overload

The single most effective intervention for combating sarcopenia is resistance training. This includes weight lifting, resistance band exercises, and bodyweight movements such as push-ups and squats. The key principle is progressive overload — gradually increasing the weight, frequency, or volume of your training over time to continually stimulate muscle growth and strength adaptation.

A network meta-analysis by Negm et al. (2022) published in the Journal of the American Medical Directors Association examined 59 randomized controlled trials and found that mixed exercise — combining both aerobic and resistance training — was the most effective intervention for increasing muscle mass, strength, and physical performance in individuals with sarcopenia.

How Often Should You Strength Train?

Most individuals will see the greatest benefit with strength training performed two to three times per week. However, even modest amounts of training can produce meaningful results. A study by Fisher et al. (2014) demonstrated that as little as 15 minutes of resistance exercise performed twice per week led to significant strength increases in adults with a mean age of 55 years. The most important step is simply to start.

It Is Never Too Late to Start

One of the most encouraging findings in the research is that strength gains occur regardless of age. Marzuca-Nassr et al. (2023) compared resistance training outcomes in adults aged 65 to 75 years versus those over 85 years old. After 12 weeks of whole-body resistance training, both groups achieved comparable improvements in quadriceps muscle size (approximately 10–11%), whole-body lean mass, and leg extension strength (38–46%). There were no significant differences between age groups — confirming that it is never too late to benefit from resistance exercise.

Building Your Strength Reserve

In my practice, I emphasize that the goal of strength training extends beyond building muscle. Resistance training builds a greater strength reserve — the physical capability you can draw upon when you need it most. Whether lifting a heavy object, recovering from an illness, climbing stairs, carrying groceries, or playing with grandchildren, a robust strength reserve ensures your body can meet the demands of daily life as you age.

Research also demonstrates a strong correlation between muscle strength and longevity. A large prospective study by Celis-Morales et al. (2018) in the BMJ involving over 500,000 UK Biobank participants found that higher grip strength was associated with reduced all-cause mortality and lower incidence of cardiovascular disease, respiratory disease, and cancer. Strength training also improves bone density, joint health, and balance — all critical for preventing falls and injuries.

Strategy 2: Optimize Your Protein Intake

The second essential strategy is evaluating and optimizing protein intake. Many people, particularly older adults, are not consuming enough protein to support muscle maintenance and growth. A systematic review and meta-analysis by Coelho-Junior et al. (2022) found that older adults with sarcopenia consumed significantly less protein than their peers without sarcopenia, suggesting that inadequate protein intake may be an important contributing factor.

Additional research by Coelho-Júnior et al. (2022) published in Ageing Research Reviews confirmed that protein intake above the recommended dietary allowance was significantly associated with faster walking speed, greater lower-limb and handgrip strength, and better balance in older adults.

How Much Protein Do You Need?

The standard recommended dietary allowance for protein is approximately 0.8 to 1.0 grams per kilogram of body weight. However, to actively build or maintain muscle — especially when combined with resistance training — I recommend aiming for 1.5 to 2.0 grams per kilogram of body weight, which translates to roughly 1 gram of protein per pound of body weight.

While some research suggests spacing protein intake evenly throughout the day, the most important factor for the majority of individuals is simply reaching an adequate total daily protein target. Focus on lean protein sources to avoid excess calorie intake from other macronutrients, which can lead to fat gain rather than lean muscle growth.

High-Quality Protein Sources

For reference, here are common protein sources and their approximate content per serving: a 100-gram chicken breast provides about 31 grams of protein; a 100-gram salmon fillet provides 25 grams; a 100-gram beef sirloin provides 24 grams; and one large egg contains 6 grams. Plant-based options include Greek yogurt (15–20 grams per serving), tofu (8 grams per 100 grams), and one cup of cooked black beans (about 15 grams).

Strategy 3: Creatine Monohydrate and Whey Protein Supplementation

Resistance training and adequate protein intake are by far the two most important strategies for combating sarcopenia. For those who want to further optimize their results, two well-studied supplements — creatine monohydrate and whey protein — offer additional benefit.

Creatine Monohydrate for Aging Adults

Creatine monohydrate is one of the most extensively researched supplements in sports science, and its benefits extend well beyond athletic populations. A comprehensive review by Candow et al. (2019) published in the Journal of Clinical Medicine concluded that creatine supplementation has the potential to increase aging muscle mass and performance, decrease fall risk, and may attenuate inflammation and bone mineral loss.

A large-scale dose-response meta-analysis by Pashayee-Khamene et al. (2024) encompassing 143 randomized controlled trials confirmed that creatine supplementation increases fat-free mass while reducing body fat percentage — and that these effects are most pronounced when combined with resistance training. This is particularly relevant to sarcopenia, where one of the hallmarks is the gradual replacement of muscle tissue with fatty tissue.

Whey Protein for Sarcopenia

Whey protein is a high-quality protein derived from milk that is rich in essential amino acids and rapidly absorbed. A systematic review and meta-analysis by Li et al. (2024) published in The Journal of Nutrition, Health & Aging found that whey protein supplementation significantly increased skeletal muscle mass and gait speed in older adults with sarcopenia. It also improved biomarkers such as reduced interleukin-6 and improved insulin-like growth factor-1 levels, and enhanced activities of daily living scores without increasing BMI or overall weight.

Choosing Safe, Third-Party Tested Supplements

It is important to recognize that the supplement industry is not regulated by the FDA, and independent testing has frequently identified impurities in commercial products. When selecting creatine or whey protein supplements, I recommend choosing brands that carry USP or NSF certification, which confirms third-party testing for purity and label accuracy.

If you have medical comorbidities, discuss supplementation with your healthcare provider before starting. In general, both creatine and whey protein are considered very safe for aging individuals. Multiple studies have confirmed the safety of creatine in frail older adults and in those with conditions such as type 2 diabetes, heart disease, and neurodegenerative diseases.

Putting It All Together

Maintaining and building muscle mass as you age is not only achievable — it is one of the most impactful things you can do for your long-term health and independence. Start with consistent resistance training, optimize your protein intake to support muscle protein synthesis, and consider creatine monohydrate and whey protein as evidence-based supplements to further enhance your results. It is never too late to begin.

If you are looking for a starting point, I recommend beginning with a simple bodyweight exercise program and gradually increasing the challenge over time. Small, consistent efforts compound into significant long-term gains in strength, function, and overall quality of life.

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References

1. Negm AM, Lee J, Hamidian R, Jones CA, Khadaroo RG. Management of sarcopenia: a network meta-analysis of randomized controlled trials. J Am Med Dir Assoc. 2022;23(5):707-714. doi:10.1016/j.jamda.2022.01.057

2. Fisher J, Steele J, McKinnon P, McKinnon S. Strength gains as a result of brief, infrequent resistance exercise in older adults. J Sports Med (Hindawi Publ Corp). 2014;2014:731890. doi:10.1155/2014/731890

3. Marzuca-Nassr GN, Alegría-Molina A, SanMartín-Calísto Y, et al. Muscle mass and strength gains following resistance exercise training in older adults 65–75 years and older adults above 85 years. Int J Sport Nutr Exerc Metab. 2023;34(1):11-19. doi:10.1123/ijsnem.2023-0087

4. Celis-Morales CA, Welsh P, Lyall DM, et al. Associations of grip strength with cardiovascular, respiratory, and cancer outcomes and all cause mortality. BMJ. 2018;361:k1651. doi:10.1136/bmj.k1651

5. Coelho-Junior HJ, Calvani R, Azzolino D, et al. Protein intake and sarcopenia in older adults: a systematic review and meta-analysis. Int J Environ Res Public Health. 2022;19(14):8718. doi:10.3390/ijerph19148718

6. Coelho-Júnior HJ, Calvani R, Tosato M, et al. Protein intake and physical function in older adults: a systematic review and meta-analysis. Ageing Res Rev. 2022;81:101731. doi:10.1016/j.arr.2022.101731

7. Candow DG, Forbes SC, Chilibeck PD, Cornish SM, Antonio J, Kreider RB. Effectiveness of creatine supplementation on aging muscle and bone: focus on falls prevention and inflammation. J Clin Med. 2019;8(4):488. doi:10.3390/jcm8040488

8. Pashayee-Khamene F, Heidari Z, Asbaghi O, et al. Creatine supplementation protocols with or without training interventions on body composition: a GRADE-assessed systematic review and dose-response meta-analysis. J Int Soc Sports Nutr. 2024;21(1):2380058. doi:10.1080/15502783.2024.2380058

9. Li ML, Zhang F, Luo HY, et al. Improving sarcopenia in older adults: a systematic review and meta-analysis of randomized controlled trials of whey protein supplementation with or without resistance training. J Nutr Health Aging. 2024;28(4):100184. doi:10.1016/j.jnha.2024.100184

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Disclaimer: This content is for educational purposes only and does not substitute for the medical advice of a physician. Always consult with a qualified healthcare provider regarding any medical condition or treatment plan.