Your golf drive doesn’t go as far as it used to. Your 5 km run time has crept up. Getting up off the floor now involves a small grunt and an escape plan.
And when you mention it, someone says the five words nobody argues with: “Well, you’re not getting younger.”
Here’s the thing. Some of that really is age. But a lot of it isn’t. A big chunk of what we blame on birthdays is muscle and strength quietly slipping away, and unlike birthdays, that’s something you can do something about.
Whether you’re a golfer, runner, rower, cyclist, or just someone who’d like to get off the floor without a plan, this one’s for you. And if you’re in your 30s or 40s, keep reading, because this is about future you. The earlier you know it, the better the deal.
Meet Sarcopenia: The Thing Nobody Warns You About
Sarcopenia (sar-co-PEE-nee-a) is the medical term for the loss of muscle and strength that creeps in over time. Think of it as your muscles slowly clocking off early.
Experts describe it as a muscle disease rooted in changes that build up across a lifetime. It’s most common in older age, but it can show up earlier (Cruz-Jentoft et al., 2019). Notice the phrase “across a lifetime”. It’s not something that switches on at 65.
Here’s the sneaky part: strength goes faster than size. In studies that measured both, strength dropped two to five times faster than muscle mass (Mitchell et al., 2012). So you can look much the same and still be getting weaker.
And it matters. Sarcopenia plays a major role in the frailty and loss of function that can come with ageing (Peterson et al., 2011). The same review that measured those rates found that losing strength is a more consistent risk for disability, and even death, than losing muscle size (Mitchell et al., 2012).
In plain English, it’s the difference between playing with your grandkids and watching them play.
The good news? Muscle and strength respond to training. Let’s look at what that means in the real world.
“It’s Just Age.” Is It?
Every sport shows the same pattern: performance drifts down with age. That part is real. What isn’t set in stone is how fast.
First, a quick distinction. The declines below describe people who have been doing their sport consistently for years, like masters runners and the fastest rowers in each age group. If you’ve only just started, or you’re playing a lot more than you used to (hello, newly retired golfers), you’re on a different curve.
You’re learning better technique and moving more efficiently at the same time as you’re getting fitter, so it’s very common to get better, not worse. Research on older adults shows we keep the ability to learn and refine movement skills with practice, although for some kinds of skills it can come more slowly (Voelcker-Rehage, 2008). And if you take up cycling or suddenly ride a lot more, your aerobic fitness can jump. One meta-analysis found that older adults who started endurance training improved their aerobic capacity by about 23% on average (Green & Crouse, 1995).
So why bother with strength training? Because skill and fitness gains eventually level off, while the foundations underneath (muscle, strength and bone) keep ageing quietly in the background. Even lifelong athletes lose muscle mass as they get older (Drey et al., 2016). Strength training protects that foundation, and as the research below shows, it adds speed and distance on top.
Golf. Ask any golfer over 50 where their distance went and most will shrug and blame age. But strength is closely linked to swing speed and driving distance, with leg, hip and trunk power and grip strength standing out (Torres-Ronda et al., 2011). And training seems to move the needle. A review of 20 studies found that combining general strength work with golf-specific training lifted clubhead speed by about 4% and hitting distance by about 5% on average (Uthoff et al., 2021). That’s roughly 10 extra metres on a 200 metre drive. The earlier review also noted that the biggest swing improvements were seen in older golfers. (The researchers are careful to say more work is needed on exactly why, but the direction is clear.)
Running. Peak endurance running performance holds up until around 35, dips modestly into your 50s and 60s, then falls more steeply after that (Tanaka & Seals, 2008). So yes, the slope is real. But look at what lifting does for runners. A meta-analysis found that two to three strength sessions a week for 8 to 12 weeks gave a large boost to running economy, which is basically how little energy it costs you to run at a given pace (Balsalobre-Fernández et al., 2016). That was a small group of studies in well-trained runners, not older ones, so treat it as a strong sign rather than a promise. It’s still a good argument for runners to lift.
Rowing. When researchers compared the fastest male indoor rowers across different ages, performance slipped by about 3% per decade between 24 and 50, then roughly 7% per decade from 50 to 74 (Seiler et al., 1998). So the slope steepens after 50.
Now meet the exception. Researchers studied a 92-year-old four-time world champion indoor rower and found his body ramped up its oxygen use as quickly as a healthy young adult’s. He rowed about 30 km a week and did two strength sessions a week (Daly et al., 2023). One man isn’t a trial, and he’s clearly exceptional. But he shows the ceiling is a lot higher than most of us assume.
Cycling. And let’s not forget the MAMILs and their female counterparts! MAMIL stands for Middle-Aged Men In Lycra. You know the type. (Some of us are the type.) It’s a glorious sight at 6am on a Saturday: a gleaming $12,000 carbon bike, a matching kit, a heart rate monitor, and a firm belief that the café stop is the real sport.
They’ll spend $3,000 on wheels to save 90 grams, but 30 minutes in the gym? Let’s not be silly.
The irony is that many of them are some of the fittest people in the room, aerobically. Huge engine. But the rest of the machine can be quietly falling behind. Here’s what the research says about long-term riders who do all the riding and none of the lifting. (If you’ve only just taken up cycling, expect your aerobic fitness to climb.)
Muscle drifts away. Being a lifelong athlete doesn’t make you immune. In one study of 75 masters athletes compared with everyday older adults, only the power-trained athletes beat the non-athletes on both muscle mass and motor units (the nerve connections that fire your muscles). They also carried more muscle than the endurance-trained athletes (Drey et al., 2016). Translation: endurance training builds the engine, not the chassis. (It was a small study, with only 23 endurance athletes, so treat it as a strong hint.)
And remember, strength tends to fall faster than muscle size. It’s not hard to see what that means for the hills, the surges and the sprint to the café sign.
The good news: lifting makes cyclists faster. A 2025 meta-analysis of 17 studies and 262 endurance cyclists found that heavy strength training improved time trial and time to exhaustion performance (Llanos-Lagos et al., 2025). An earlier review reached a similar view, finding the clearest benefit for cycling when the strength work was heavy (Rønnestad & Mujika, 2014). The programs were short, lasting 5 to 25 weeks, with just one to three sessions a week.
One honest note: the researchers rated the certainty of the evidence as low. Think “promising and consistent”, not “guaranteed”.
So, MAMILs, your next upgrade isn’t a lighter bottle cage. It’s two sessions a week under a barbell. No lycra required, but we won’t judge.
Put it together and a pattern emerges. Decline with age is real, but how steep it gets depends a lot on what you do about it.
Slowed? Yes.
Held steady? Often, with consistent training.
Clawed back? Yes. Muscle and strength can be rebuilt well into later life.
One honest caveat: even at the elite level, the very top end of performance still drifts down with time. We’re not promising you’ll be 25 again. We’re saying “it’s just age” is rarely the whole story.
So, Is It Too Late to Start?
No. A meta-analysis of 49 studies and 1,328 adults aged 50 and over found that strength training added about 1.1 kg of lean mass on average, with more training volume giving bigger gains (Peterson et al., 2011).
There’s one honest wrinkle: the older participants gained a touch less than the younger ones. So the best time to start was years ago. The second best time is now.
The Bigger Picture (Quick Hits)
Living better, longer? A review of 16 studies found that people who did muscle-strengthening activities had a 10 to 17% lower risk of death from any cause, plus lower risk of heart disease, cancer and diabetes. The sweet spot looked like 30 to 60 minutes a week (Momma et al., 2022). These were observational studies, so it shows a link, not proof.
Stronger bones? A 2025 review of trials in postmenopausal women found strength training can improve bone density, especially at the spine and hip. The clearest results came from challenging loads, three sessions a week, and sticking with it for around a year or more (Zhao et al., 2025). Results vary between studies.
Fewer falls? A Cochrane review of 108 trials found exercise cuts the rate of falls by about a quarter. Programs mixing balance, everyday movement and strength probably cut it by about a third. For strength alone, the evidence is uncertain, so pair it with balance work (Sherrington et al., 2020).
Is it safe? Done properly, yes. An expert position statement concluded that the benefits largely outweigh the risks when training is properly implemented (Fragala et al., 2019).
How to Start (Without Overthinking It)
Two to three sessions a week is what the evidence works towards for older adults (Fragala et al., 2019). Start with what you can manage consistently and build from there.
Train the whole body. Legs, hips, back, chest, shoulders and core.
Make it challenging, then progress. Gains were bigger with more training volume.
Technique before load. Always. This is where good coaching earns its keep.
Add some cardio and balance work. The best long-term results came from combining them with strength.
Respect recovery. Some soreness is normal (we explain why in our DOMS post), and a lighter week is only needed when your body asks for one (see our deload post).
A couple of practical notes:
If you’ve never lifted before, we recommend one or two personal training sessions first so a coach can teach you the basics. If you’re over 60 and brand new, we’d suggest starting with personal training.
If you have a heart condition, high blood pressure, a joint replacement or a bone condition, check with your GP first.
Not 50 Yet? Your Head Start
Think of strength as a savings account.
Build the base now. More muscle and strength going into your 50s is a bigger buffer.
Learn the lifts early. By 55, they’re second nature instead of something you’re nervously figuring out.
Make it a habit. Consistency beats intensity, as we explored in our strength ladder post.
Slow the slope before it steepens. Remember rowing, 3% per decade becoming 7%? The earlier you build, the more you have to spend.
The Bottom Line
“It’s just age” is a comfortable story, but it’s rarely the whole story. Muscle and strength decline is real, but it responds to training at almost any stage. Slow it down, hold it steady, and win some of it back. Your golf swing, your run, your stroke rate, your ride and your everyday life will all thank you.
Ready to Start?
At Fortified Body Gym in Willoughby, we coach people of all abilities and ages, with technique first and every session tracked. If you’re new, we’ll help you start the right way.
Book your free trial week here and let’s give “it’s just age” a run for its money.
This article is general information, not medical advice. Check with your doctor before starting a new exercise program, especially if you have a health condition.
The Research Behind This Article
Cruz-Jentoft, A. J., Bahat, G., Bauer, J., et al. (2019). Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing, 48(1), 16-31. doi:10.1093/ageing/afy169
Mitchell, W. K., Williams, J., Atherton, P., Larvin, M., Lund, J., & Narici, M. (2012). Sarcopenia, dynapenia, and the impact of advancing age on human skeletal muscle size and strength; a quantitative review. Frontiers in Physiology, 3, 260. doi:10.3389/fphys.2012.00260
Peterson, M. D., Sen, A., & Gordon, P. M. (2011). Influence of resistance exercise on lean body mass in aging adults: a meta-analysis. Medicine & Science in Sports & Exercise, 43(2), 249-258. doi:10.1249/MSS.0b013e3181eb6265
Voelcker-Rehage, C. (2008). Motor-skill learning in older adults: a review of studies on age-related differences. European Review of Aging and Physical Activity, 5, 5-16. doi:10.1007/s11556-008-0030-9
Green, J. S., & Crouse, S. F. (1995). The effects of endurance training on functional capacity in the elderly: a meta-analysis. Medicine & Science in Sports & Exercise, 27(6), 920-926.
Torres-Ronda, L., Sánchez-Medina, L., & González-Badillo, J. J. (2011). Muscle strength and golf performance: a critical review. Journal of Sports Science and Medicine, 10(1), 9-18.
Uthoff, A., Sommerfield, L. M., & Pichardo, A. W. (2021). Effects of resistance training methods on golf clubhead speed and hitting distance: a systematic review. Journal of Strength and Conditioning Research, 35(9), 2651-2660. doi:10.1519/JSC.0000000000004085
Tanaka, H., & Seals, D. R. (2008). Endurance exercise performance in Masters athletes: age-associated changes and underlying physiological mechanisms. Journal of Physiology, 586(1), 55-63.
Balsalobre-Fernández, C., Santos-Concejero, J., & Grivas, G. V. (2016). Effects of strength training on running economy in highly trained runners: a systematic review with meta-analysis of controlled trials. Journal of Strength and Conditioning Research, 30(8), 2361-2368. doi:10.1519/JSC.0000000000001316
Seiler, K. S., Spirduso, W. W., & Martin, J. C. (1998). Gender differences in rowing performance and power with aging. Medicine & Science in Sports & Exercise, 30(1), 121-127.
Daly, L. S., Van Hooren, B., & Jakeman, P. (2023). Physiological characteristics of a 92-yr-old four-time world champion indoor rower. Journal of Applied Physiology, 135(6), 1415-1420. doi:10.1152/japplphysiol.00698.2023
Nichols, J. F., Palmer, J. E., & Levy, S. S. (2003). Low bone mineral density in highly trained male master cyclists. Osteoporosis International, 14(8), 644-649.
Drey, M., Sieber, C. C., Degens, H., McPhee, J., Korhonen, M. T., Müller, K., Ganse, B., & Rittweger, J. (2016). Relation between muscle mass, motor units and type of training in master athletes. Clinical Physiology and Functional Imaging, 36(1), 70-76.
Llanos-Lagos, C., Ramírez-Campillo, R., & Sáez de Villarreal, E. (2025). Heavy strength training effects on physiological determinants of endurance cyclist performance: a systematic review with meta-analysis. European Journal of Applied Physiology. doi:10.1007/s00421-025-05883-2
Rønnestad, B. R., & Mujika, I. (2014). Optimizing strength training for running and cycling endurance performance: a review. Scandinavian Journal of Medicine & Science in Sports, 24, 603-612.
Momma, H., Kawakami, R., Honda, T., & Sawada, S. S. (2022). Muscle-strengthening activities are associated with lower risk and mortality in major non-communicable diseases: a systematic review and meta-analysis of cohort studies. British Journal of Sports Medicine, 56(13), 755-763. doi:10.1136/bjsports-2021-105061
Zhao, F., Su, W., Sun, Y., Wang, J., Lu, B., & Yun, H. (2025). Optimal resistance training parameters for improving bone mineral density in postmenopausal women: a systematic review and meta-analysis. Journal of Orthopaedic Surgery and Research. PMID: 40420105
Sherrington, C., Fairhall, N., Wallbank, G., et al. (2020). Exercise for preventing falls in older people living in the community: an abridged Cochrane systematic review. British Journal of Sports Medicine, 54(15), 885-891. doi:10.1136/bjsports-2019-101512
Fragala, M. S., Cadore, E. L., Dorgo, S., et al. (2019). Resistance training for older adults: position statement from the National Strength and Conditioning Association. Journal of Strength and Conditioning Research, 33(8), 2019-2052. doi:10.1519/JSC.0000000000003230
