Flexibility and Mobility

Here is a test worth knowing about. Stand up, cross your legs, and lower yourself to the floor without using your hands, knees, or forearms for support. Then stand back up the same way. The test is scored out of ten — one point deducted for each time a hand, knee, or forearm touches the floor, half a point for a balance wobble.

In a study of over 2,000 adults aged 51 to 80, followed for more than six years, those who scored in the lowest range on this test were five to six times more likely to die during the follow-up period than those who scored highest. A 2024 study in the same area confirmed the finding: people with the highest scores were four times less likely to die from any cause over the following decade than those who struggled most.

This isn't magic. The sitting-rising test doesn't cause people to live longer. What it measures — the combination of strength, flexibility, balance, and body control needed to get up from the floor without assistance — turns out to be a remarkably accurate proxy for overall physical function. And that function is one of the strongest predictors of how long you'll live and how independently you'll do it.

Flexibility and mobility are not the same thing

They're closely related but distinct, and understanding the difference helps you train more effectively.

Flexibility is the passive range of motion a muscle or joint can achieve — how far you can stretch your hamstring when someone holds your leg up. It's a property of the muscle itself: its length, its pliability, its tolerance for being extended.

Mobility is the active range of motion you can control — how far you can move your leg under your own power, with strength and coordination. It's a neuromuscular skill as much as a physical property. A gymnast has high flexibility. A well-trained older adult has high mobility. The distinction matters because stretching alone builds flexibility, but you also need strength through the available range — which is what makes movements like the sitting-rising test genuinely difficult and genuinely trainable.

A 2024 study in the Scandinavian Journal of Medicine and Science in Sports — following 3,139 adults aged 46 to 65 for nearly 13 years — found that body flexibility was strongly and inversely associated with mortality in both men and women, even after adjusting for age, BMI, and health status. Women with low flexibility scores had nearly five times the mortality risk of those with high scores. Men showed a similarly strong pattern. The researchers concluded that flexibility should be considered as seriously as cardiovascular fitness and muscular strength in assessments of physical health.

Why falls matter more than most people expect

Falls are the leading cause of injury-related death in people over 65 in the UK. More than that, a serious fall — a hip fracture, a head injury, a prolonged period of immobility — can set in motion a cascade of decline that is difficult to reverse. Around 30% of adults over 65 fall at least once a year. A significant proportion never fully recover their previous level of function.

The factors that determine fall risk are exactly those that flexibility and mobility training addresses: hip and ankle range of motion, core stability, balance, the ability to make rapid postural corrections. None of these are fixed. All of them respond to training. And the benefits accumulate relatively quickly — consistent daily mobility work over six to eight weeks produces measurable improvements in range of motion and balance that translate directly into lower fall risk.

The single-leg balance test is a simple proxy for where you stand. Stand on one foot with eyes open and see how long you comfortably hold it. Then try with eyes closed. If eyes-closed is very brief — under five or ten seconds — that's worth addressing. Balance declines steeply with age and is highly trainable with daily practice.

A Daily Mobility Routine

10 minutes · no equipment · targets the areas that matter most after 50

Cat-cow stretch

On hands and knees — gently arch and round your spine. Warms up the entire spine and loosens the lower back.

10 reps

slow

Hip flexor stretch

Kneeling lunge — rear knee on floor, hips forward. Tight hip flexors pull the lower back out of alignment; this counters hours of sitting.

30 sec

each side

Thoracic rotation

Lie on side with knees bent — rotate upper body to open chest toward ceiling. Restores upper back rotation, often lost with age and desk work.

8 reps

each side

Deep squat hold

Feet shoulder-width, heels down — hold at the bottom using a door frame if needed. Maintains hip and ankle range of motion essential for getting up from the floor.

30–60 sec

hold

Standing hamstring stretch

Foot on a low step — hinge forward from hips, back straight. Hamstring tightness is a major contributor to lower back pain and limited stride length.

30 sec

each side

Single-leg balance

Stand on one foot near a wall — eyes open, then try eyes closed. Fall prevention training, not a flexibility exercise, but essential in the same daily window.

30 sec

each side

Sit-to-floor and rise

Lower to the floor and stand back up — use as little hand support as possible. Practice the movement that predicts functional independence. Work on reducing hand contact over time.

5 reps

controlled

Do this daily — morning or evening, 10 minutes is enough. Consistency over six to eight weeks produces measurable range-of-motion gains. If something causes pain rather than a stretching sensation, modify or skip it.

The sitting problem — and the floor solution

One of the most quietly effective ways to maintain hip and ankle mobility is simply to sit on the floor more often. This sounds trivial but isn't. Floor sitting requires and maintains the range of motion in the hips, ankles, and spine that chairs gradually erode. Most of the world's long-lived traditional populations spend significant time sitting cross-legged, squatting, or kneeling — positions that keep the relevant joints moving through their full range daily.

Getting down to the floor and back up regularly is itself functional training. It's also practical — the more you practise it, the easier it becomes, and the easier it becomes, the better your sitting-rising test score. Over months and years, this compounds.

For those who find floor sitting uncomfortable initially, start with supported positions — a cushion, a wall to lean against, partial positions that can be gradually deepened. The goal isn't to force discomfort; it's to gradually restore ranges of motion that have been lost to sustained sitting in chairs.

What actually works for flexibility

Static stretching — holding a stretch for 20–30 seconds or more — is effective for improving flexibility over time. The key words are 'over time.' A single session of stretching doesn't produce lasting changes; consistent daily practice across weeks does. Research suggests 10–15 minutes of daily stretching is sufficient for meaningful improvements in range of motion.

Dynamic stretching — controlled movements through a range of motion, like leg swings or arm circles — is more appropriate before exercise, as it warms the tissue without reducing power output. Static stretching is better suited to the end of a session or as a standalone practice.

Yoga, Pilates, and tai chi are all well-evidenced for both flexibility and balance in older adults. Tai chi in particular has a strong research base for falls prevention — several large trials have found regular tai chi practice reduces fall rates by 20–45% in older adults. It combines balance training, slow controlled movement, and body awareness in a format that is low-impact and highly sustainable.

'The sitting-rising test is worth trying not because it predicts how long you'll live, but because it shows you exactly what combination of strength, flexibility, and balance you might be losing — and gives you something specific to work on.'

A note on stretching and cardiovascular health

A finding that surprises most people: regular stretching appears to improve arterial flexibility, not just muscular flexibility. The arterial walls, like muscles, become stiffer with age — and that arterial stiffness is a significant risk factor for cardiovascular disease. Several studies have found that consistent stretching programmes reduce arterial stiffness measurably. This doesn't mean stretching is a heart health intervention; it means the benefits of flexibility training may extend further than most people realise.

What to prioritise

The hips and lower back are the most important areas for functional independence and falls prevention. Tight hip flexors — almost universal in people who sit for extended periods — pull the pelvis into an anterior tilt, stressing the lower back and altering gait mechanics. Restoring hip flexibility and hip strength through their full range directly addresses this pattern.

Shoulders and thoracic spine mobility matter too, particularly for posture and the ability to reach, lift, and turn. The upper back tends to become increasingly rounded with age — partly from postural habits, partly from reduced muscle engagement — and targeted thoracic mobility work counteracts this.

The routine in the graphic above covers all of these areas in around ten minutes. Done daily, it's enough to maintain and progressively improve the range of motion and balance that matter most for living independently and confidently as you age.