Squeeze as hard as you can. That’s the test. And according to one of the largest cardiovascular studies ever conducted, that single measurement predicts your risk of dying from heart disease more accurately than a blood pressure reading. I still find that striking, even having read the research more than once.
A landmark trial tracked nearly 140,000 adults across 17 countries for four years. Each 5kg drop in grip strength correlated with meaningfully higher rates of cardiovascular death, stroke, and heart attack – outperforming blood pressure as a predictor. The associations held across high, middle, and low-income countries alike. That’s a broad, consistent signal.
As a GP with a particular interest in lifestyle medicine, this kind of research gets my attention. Grip strength is actionable. It responds to training. For most people, improving it doesn’t require anything expensive – just consistent effort and a few targeted exercises. Your grip strength isn’t just about opening stubborn jam jars or carrying shopping bags from the car, though it certainly helps with those. It’s a reflection of how your body is functioning overall: your biological age, your muscle health, and according to the evidence, your longevity.
Here’s what the evidence shows, what healthy numbers look like for your age and sex, and which exercises are most likely to make a real difference.
Why Grip Strength Matters for Your Health
The international PURE study recruited nearly 140,000 adults across 17 countries and followed them for approximately four years. Researchers measured grip strength using a dynamometer – a handheld device that records force in kilograms – then adjusted their findings for age, smoking habits, and exercise levels. The associations held regardless of income level or geography.
Each 11-pound decrease in grip strength correlated with:
- 16% higher risk of death from any cause
- 17% higher risk of cardiovascular death
- 9% higher risk of stroke
- 7% higher risk of heart attack
Grip strength proved a better predictor of these outcomes than blood pressure measurements alone. That’s the part worth pausing on.
The statistical signal survived adjustments for age, lifestyle, and socioeconomic context across a genuinely diverse global sample. Not a niche population or a single country’s quirk – a finding that appears to be broadly applicable.
So what is grip strength actually measuring?
The hypothesis is that grip strength reflects “biological age” – how well your body is functioning relative to your chronological age. Strong muscles in the hands and forearms suggest good overall physiological condition. Interestingly, weak grip strength showed no significant association with developing type 2 diabetes or cancer. The researchers concluded that muscle strength may not prevent chronic disease, but it likely improves your ability to survive and recover once health challenges do arise.
In other words: it’s about reserves. Having that physical capacity when you need it.
Separate research has tracked this over even longer timeframes. One study measured grip strength in volunteers aged 56-68 between 1965 and 1968, then followed their survival for decades. Those with stronger grips were significantly more likely to reach very advanced age. Worth knowing, particularly if you’re in your 40s or 50s and thinking about the long game.
I’ve been testing grip strength in consultations regularly over the past few months. Reactions vary – some patients are genuinely shocked by where they land, others have a rough sense already. But it’s the conversation that follows that tends to do the most work. Suddenly they’re looking at their current health status differently, and their future comes into sharper focus. That shift in perspective is hard to achieve with a blood pressure reading alone.
What Exactly Is Grip Strength?
Grip strength measures the force your hands, wrists, and forearms generate while holding an object. Your fingers themselves contain no muscles – the work is done by muscles in the hand and forearm, with tendons extending to the fingertips to create movement and force. It’s a more complex system than it looks from the outside.
Beyond jars and shopping bags, grip strength works as a proxy for overall muscle health. The correlation with longevity reflects both a physically active lifestyle and the independent effects of muscle strength on survival outcomes.
The ability typically begins declining around age 50 – roughly 10% per decade if nothing is done to maintain it. Testing earlier, and training consistently, matters. You’re building reserves you can draw on in later decades.
Three Types of Grip Strength
Crush Grip involves squeezing between your fingers and palm – the kind used for handshakes, holding barbells, rope climbing, and swinging a cricket bat. This is the most commonly measured type and what a dynamometer assesses.
Pinch Grip measures strength between your fingertips and thumb, without palm involvement. Rock climbing, bouldering, turning keys, carrying weight plates by the edge – this is that. Different muscle activation patterns, and considerably weaker than crush grip in most people.
Support Grip is your ability to hold objects in your palms over extended periods. Carrying shopping bags, pushing a trolley, maintaining a grip during gardening tasks. This endurance aspect is often overlooked, but it’s central to functional independence as you get older.
These three types are worth training separately. Different exercises target different muscle groups and movement patterns. The exercises in the next section address all three.
What Is a Good Grip Strength?
Grip strength norms vary by age and sex. Here are key benchmarks from large-scale normative studies:
These ranges shift with age. Grip strength typically peaks in your 30s and begins declining around 50, with roughly 10% lost per decade without active maintenance.
For those in their 20s, males might average 46-56kg and females 27-37kg. By your 50s, expect approximately 40-50kg for males and 24-34kg for females.
These aren’t hard lines – they’re reference points. If you’re significantly below the average for your age and sex, it’s worth working out whether that’s simple deconditioning (fixable) or something worth a conversation with your GP.
Is 50kg Grip Strength Good?
Yes, 50kg is genuinely good grip strength.
For females of any age, 50kg sits well above the typical 25-35kg range – exceptional by any standard. For males under 50, it lands at the upper end of average, indicating healthy muscle strength.
That’s a solid baseline. Regular training from this point can improve cardiovascular health markers and support functional independence over the long term.
What Is the 10 Rule for Grip Strength?
There isn’t a formally recognised “10 rule” in clinical practice. The figure you’re likely thinking of is the roughly 10% decline in grip strength per decade after age 50, which appears consistently in the research.
So if you’re at 50kg aged 50, you might expect around 45kg at 60, 40kg at 70, and so on – without active training. Genetics plays a role, but training plays a larger one than most people assume.
Some clinical assessments use threshold values around 27kg for men and 16kg for women as indicators of potential frailty risk, though these vary by the population studied. Flags, not diagnoses. I’ve had some fairly blunt conversations with patients near those thresholds – more productive than you might expect. Numbers give the conversation a foothold, and sometimes that’s exactly what it takes to prompt real change.
What matters most is tracking your own score against age-matched norms over time, rather than fixating on any single cutoff.
Testing Your Grip Strength
The gold standard is a hand dynamometer. These are available at some GP surgeries, physiotherapy clinics, sports science facilities, and well-equipped gyms. If you want a precise reading, ask your GP or physio whether they have access to one, or check whether your local gym offers this assessment.
As a practical tool, a dynamometer is cheap and takes 30 seconds to use. The obstacle to routine NHS use isn’t the equipment – it’s stretched services and the absence of financial incentives to make it standard. I think it should be included, particularly for patients with long-term conditions. For people managing type 2 diabetes, for instance, improving overall muscle strength has been associated with better blood sugar control – grip testing could be the prompt that opens that conversation in a way a standard health check doesn’t always manage.
For a rough home measure: how long can you hang from a pull-up bar? How heavy a bag can you carry comfortably for several minutes? Less precise than a dynamometer, but a useful directional check on your grip capacity.
If your score is below average for your age and sex, the good news is grip strength responds well to training.
How Can I Improve My Grip Strength?
Grip strength responds well to targeted training. Most people see meaningful improvement within four to eight weeks of consistent work.
The key is training two to three times per week with at least 48 hours between sessions – your hand muscles need recovery time, just like any other muscle group. One important caution: overtraining causes hand pain and strain, and sometimes nerve symptoms like numbness or tingling. If that happens, stop and see your GP. Don’t push through it.
Five exercises the evidence supports for building grip strength:
Exercise 1: Farmer’s Carry
Pick up a pair of dumbbells or kettlebells at roughly 70-75% of your maximum comfortable carrying weight. Walk for 30-60 seconds: upright posture, shoulders back, core engaged.
This is one of the most functional exercises you can do. Grip, forearms, core, and legs all working simultaneously – the same demand as carrying heavy shopping bags, but with progressive overload built in. Excellent for building support grip endurance.
Frequency: 1-2 times per week
Progression: Increase weight or duration as your grip strength improves
Exercise 2: Dead Hangs
Grab a pull-up bar with both hands and hang with arms fully extended for 20-30 seconds. You’re not pulling upward – just maintaining the grip and hanging. Body stays passive.
This builds grip endurance, stretches the forearm muscles, and decompresses the spine as a bonus. Available at most gyms, or with a doorframe pull-up bar at home. Start shorter if 20 seconds is a struggle, and work towards 45-60 seconds.
Frequency: 2-3 times per week
Exercise 3: Wrist Curls
Sit with a light dumbbell resting on your thigh, forearm supported and palm facing upward. Curl your wrist upward (flexion), then lower slowly through the full range. Ten to twelve reps.
Flip the hand so your palm faces downward and repeat for wrist extension. Another ten to twelve reps.
This isolates the forearm flexors and extensors – the muscles responsible for grip strength. Start with 2-5kg and increase as you get stronger. Keep the forearm still; movement comes only from the wrist.
Frequency: 2-3 times per week
Exercise 4: Ball Squeezes
Grip a stress ball or tennis ball and squeeze firmly for five seconds, then release. Ten to twelve reps per hand.
This targets crush grip specifically and needs no equipment. Keep a stress ball in your desk drawer and squeeze during calls. Do it watching television. That accessibility is the point – it’s easy to be consistent with. Find them at any chemist or high street shop.
Frequency: 2-3 times per week (or daily if not causing hand fatigue)
Exercise 5: Plate Pinches
Hold a weight plate (5-10kg to start) between your thumb and fingers – no palm contact – with your arm extended. Hold as long as possible, aiming for 15-30 seconds initially.
This targets pinch grip specifically, which matters for fine dexterity and control. No weight plates? Heavy books or a filled water bottle work fine as substitutes.
Frequency: 2-3 times per week
Progression: Increase weight or hold duration
Getting Started
Start with two or three exercises from this list, not all five. Your hands need time to adapt to the new training load.
A simple weekly structure that works:
Monday: Farmer’s carries, Ball squeezes, Wrist curls
Thursday: Dead hangs, Plate pinches, Ball squeezes
Two to three sessions per week, most people notice real improvement within four to eight weeks. Functional gains often arrive earlier – opening jars with less effort, carrying bags without hand fatigue – sometimes within two to three weeks of starting.
One thing I’d add: persistence matters more than programme design. But don’t let grip training crowd out the rest of your routine. Having strong hands is useful – but focusing on grip at the expense of other muscle groups misses the bigger picture. Overall muscle strength is what we’re really after, and grip training works best as part of a balanced approach.
Your Grip Strength Action Plan
Grip strength is an unusually honest health marker. Hard to fake, straightforward to track, and – unlike most cardiovascular risk factors – it responds directly to what you actually do.
The benchmarks worth keeping in mind: for males aged 30-39, 45-55kg is average and above 55kg is above average. For females the same age, 27-37kg is average and above 37kg is above average. These figures shift with age – roughly 10% per decade after 50, without training.
For a precise measurement, ask about a dynamometer at your GP surgery or physio clinic. For a directional home check, timed dead hangs give you a reasonable read.
The training doesn’t need to be complicated. Two sessions per week, two or three exercises per session, consistent effort over six to eight weeks. Most people see a real change in their score – and notice it in daily life well before that.
It’s not about becoming a competitive strongman. It’s about building physiological reserves – maintaining functional independence and supporting cardiovascular health through a practical, evidence-based habit.
You’ve got the numbers, the tests, and the training plan. Pick two exercises. Start this week. Track your score monthly.
Grip strength declines if you leave it alone. Most things do. But this one is straightforward to address – and genuinely worth attending to.
