Reaching round for the seatbelt. Tucking a shirt in at the back. Resting one foot on the opposite knee to pull on a sock. None of these feels like exercise, yet each one asks a joint to travel to the far end of its range. When that range quietly shrinks, the task still gets done, just a little differently, and that difference is worth understanding.
Mobility is Measured in Everyday Tasks
Mobility is the ability to move a joint comfortably through the range a task needs. Our cornerstone guide, The Complete Guide to Healthy Ageing Through Movement, explains why that is not the same as being flexible. You do not need to touch your toes. You do need enough movement for the things you want to keep doing.
In daily life, that tends to mean moments like these:
turning your head far enough to see a cyclist coming up behind you
reaching behind you to fasten an apron, a necklace or a bra
bending your ankle enough to walk comfortably down a steep slope
crouching to the bottom shelf of the fridge or a low kitchen cupboard
lifting a foot onto your knee to tie a shoelace or cut your toenails
Range is Lost at the Edges First
Most of what we do each day happens in the middle of a joint's range. Walking, sitting, typing, knitting and reading all keep our joints well away from their limits.
The far ends of the range are used much less often. We might reach behind our back once a day, look fully over our shoulder a few times a week, and crouch right down only when something rolls under the table.
Range that is visited rarely is the range most easily lost, and it goes from the edges inwards, a few degrees at a time. A quieter season, a spell of illness or a winter spent mostly indoors can be enough to start it.
Because the middle of the range is still there, nothing feels wrong. The change only shows when a task asks for the last part of a movement, and by then it has usually been happening for some time.
When One Joint Stiffens, Another Does the Work
This is the part of mobility that most people have not heard about, and it explains a good deal.
When one joint loses range, the body rarely gives up on the task. It borrows the missing movement from the joints nearby. Those neighbours then work closer to their own limits, more often, than they were designed to.
Some common examples:
Stiff hips. Putting on socks or picking something up from the floor still happens, but the lower back bends further to make up the difference.
A stiff upper back. Looking behind you becomes a job for the neck alone, and it has to turn further than it would like.
Stiff ankles. Stairs, slopes and kerbs ask the knees and hips to bend more to bring the body forwards over the foot.
A stiff shoulder. Reaching up or behind leads to the shoulder blade hitching upwards, and the muscles of the neck pick up the extra work.
This helps explain why an ache often turns up somewhere other than the stiff joint. The joint that has lost range may feel fine. The one doing the borrowing is the one that complains, because it is now working near its limit every day.
It also explains why treating only the sore area can bring short-lived relief. If the stiffness next door is not addressed, the extra demand soon returns.
Signs Your Range May Be Narrowing
Lost range rarely announces itself. More often it shows up as a small change in how you do something. You might notice that you:
sit down to put on socks, trousers or shoes when you used to stand
turn your whole body, rather than your head, to talk to someone beside you
put your coat on with the stiffer arm first, so the other one can do the reaching
leave things on the worktop rather than putting them away in low or high cupboards
hold on to the banister more on the way down the stairs than on the way up
Some of these are sensible choices, at any age, and there is no need to give them up. The point is to know whether you are choosing an easier way or your body has stopped offering the old one.
Mobility and Control Belong Together
Range only helps if you can use it. A joint that can be moved a long way by someone else, but not under your own control, does little for daily life.
That is why mobility work and strength work sit so comfortably together, as we explained in Why You Need Both Strength and Mobility. It also links back to last week's article, Balance, Confidence and Staying Independent. Turning to look behind you, or reaching to the side, is far steadier when the movement is easily within your range rather than right at its limit.
Range responds to regular, gentle use at any age. Research consistently shows that people in later life can regain movement they had assumed was gone, provided the work is little, regular and within comfort.
For some people, supported movement is the easiest way in. Reformer Pilates uses springs to guide and support a joint through its range, so you can explore movement you might be wary of trying on your own.
Coming up in the Library on Thursday 29 October, Five Mobility Exercises for Everyday Movement sets out simple ways to keep that range, each linked to a task it supports.
Stiffness That Deserves a Closer Look
Some stiffness is a normal part of life. Feeling stiff first thing in the morning, or after a long car journey, and loosening up within a few minutes of moving is very common.
Other patterns are worth getting checked:
one joint losing range noticeably over a few weeks or months
stiffness that does not ease as you move, or that lasts well into the morning
a joint that locks, catches or gives way
range that has not returned after a fall, injury or operation
stiffness with pain that wakes you at night
Contact your GP first if a joint becomes hot, red or swollen, particularly if you also feel unwell.
For everything else, an assessment can be very useful. Osteopathy looks at how the whole body is moving, not only at the place that hurts, so a stiff joint next door to the sore one is less likely to be missed. If you are unsure what an appointment involves, Is It Time to Get That Ache Looked At? walks through it step by step. You can also find out more on our services page.
Apollo Insight
People often tell us they are "just not very flexible", as though stiffness were spread evenly through the whole body. When we look closely, it is usually one or two specific movements that have gone, such as one hip that no longer turns outwards or an upper back that has stopped rotating. The rest of the body is often moving perfectly well. That is good news, because a few minutes aimed at the right place tends to do far more than a long general routine. Finding that place is often the most useful thing an assessment can do.
How Apollo Health Collective Supports Healthy Ageing
Healthy ageing is about understanding your body, looking after it well and having the right support when you need it.
At Apollo Health Collective, we help people stay active, capable and independent through personalised, evidence-informed care. Our integrated approach brings together different areas of expertise to support movement, recovery and long-term wellbeing.
Our Sheringham clinic offers Osteopathy, Sports Therapy, Sports Massage, Clinical Exercise & Rehabilitation, Reformer Pilates, Podiatry, Biomechanics, and Lifestyle & Wellbeing services. We also offer Osteopathy appointments in Norwich and Coltishall.
Whether you are recovering from an injury, managing ongoing concerns, looking to improve your movement or simply investing in your future health, our team is here to support you.

