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THE 30-SECOND VERSION
The point of a good back exercise is not to bend the spine. It is to teach the spine to hold still while your arms and legs move. That is the whole trick.
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TODAY’S MOVE
The exercise that looks like nothing
Back to where we began. In August we loosened things gently. Today we steady them.
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There is a blue foam exercise mat in my basement that I bought in about 1987. For years I did sit-ups on it, twenty or thirty at a go, because a doctor had told me a strong stomach protects your back and sit-ups were what you did about that. I was rather proud of those sit-ups.
The advice was half right and half backwards. A strong middle does protect your back. But the sit-up turned out to be one of the worse ways to get there, because of what it does to the spine while you are doing it.
A Canadian professor spent a career measuring exactly this, and came up with three replacements. Today I want to give you the one that looks the least impressive and may be the most useful.
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QUICK QUIZ · TAP TO ANSWER
Which squeezes your lower back harder: a sit-up, or an exercise on hands and knees?
Tap your guess. A ready-to-send reply opens. Just press send and we’ll tell you if you got it right.
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Get set on hands and knees |
Hands under your shoulders, knees under your hips, on a mat or folded blanket. Make your back flat and level, like a table top. Not arched, not sagging.
ⓘ A cushion under the knees helps. If wrists complain, make fists and rest on them.
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Reach one arm out along the floor, then lift it to about shoulder height. Only that far. Your back must not move at all while it happens.
ⓘ Easier version: stop here. Arm only, no leg, is a perfectly good exercise.
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Slide the opposite leg back along the floor and lift it to hip height, no higher. Push the heel toward the wall behind you. Hips stay level and square.
ⓘ Lifting the leg higher does not make it better. It only makes your back arch.
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Hold for about seven seconds, breathing normally. Lower slowly, then do the other side. Five or six each way, most days.
ⓘ Short holds repeated beat one long hold. This builds endurance, not brute strength.
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✓✓ A working feeling across the back and backside is right. Sharp pain, or pain travelling down a leg, is not. Drop back to the arm-only version, and stop if the leg symptoms continue.
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Put This On Your Panties To Get Rid Of Bladder Leaks
My bladder leaks are gone.
Now I’m no longer afraid to wear white pants, dance, or be intimate with my husband.
Better yet, the doctor who uncovered this secret also posted a video, that’s free for the next few days, where she shows you what to do.
THE WHY |
Strength without the squeeze |
Here is the problem with my blue mat and those sit-ups. Curling up off the floor bends your spine forward, repeatedly, under load. The muscles get stronger, certainly. But you are pressing the front of the discs together over and over to achieve it. You are loading the very thing you set out to protect. |
A Canadian professor of spine biomechanics named Stuart McGill spent years measuring what different exercises actually do to the spine, and then looked for ones that built the supporting muscles while keeping that squeezing force low. He settled on three. They are standard fare in physical therapy clinics now, and the bird dog is one of them. |
On your hands and knees, your spine is not carrying your body weight the way it does standing. So the muscles can work hard while the discs get an easy time. That is the whole design. |
And notice what you are actually practising. Your arm moves. Your leg moves. Your back does nothing at all, and holding that still is the effort. In other words, you are not training your spine to bend. You are training it to refuse to. |
Which is exactly what real life asks |
Think about reaching into the back of the car, or carrying a bag across a parking lot, or lifting a grandchild. In every case your arms and legs are doing something while your middle is meant to stay solid underneath. That is a bird dog with the furniture changed. Train the holding-still, and the carryover is real. |
An honest word on the fuss |
These three exercises have a devoted following, and I do not want to oversell them. When researchers test them head to head against other sensible exercise programmes, the results generally come out much the same. That matches everything else we have found about backs. The type of exercise matters less than doing some. What I like about this one is that it is gentle on the spine, needs nothing but a mat, and is hard to do badly once you know the back stays still. |
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⚠ WHEN TO STOP
When to stop and call your doctor
These are uncommon, but they are signals to get checked rather than exercise through:
● Pain that travels down a leg, or new numbness or weakness in a leg or foot.
● Numbness between the legs, or any change in bladder or bowel control. That is an emergency.
● Back pain after a fall, with a fever, or that steadily worsens and wakes you at night.
When in doubt, get it checked. PainFree adds to your doctor’s care. It never replaces it. If you have had spinal surgery, ask before starting this one.
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THIS WEEK’S QUICK WINS
Three ways to make it stick
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🥄 Balance a cup on your back
Not a real one, but have someone look, or picture an empty mug sitting on your lower back. If it would slide off when you lift the leg, you are arching. That image does more than any instruction I can write.
Free • The best form check there is
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🚶 Keep the walk going
The WalkBack trial remains the strongest thing I know for backs. People who walked a few times a week stayed pain free roughly twice as long. The mat work supports the walking, not the other way round.
10 minutes • Still the headline act
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⏰ Not first thing in the morning
Your discs soak up fluid overnight and are at their most swollen when you wake. Give yourself an hour on your feet before doing floor work on your back. Mid-morning is kinder than before breakfast.
Timing • An hour after rising
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Built in a laboratory, not a gym
Stuart McGill, a professor of spine biomechanics, measured what common exercises do to the lower back and selected three that build the stabilising muscles while keeping compression low. They are the modified curl-up, the side plank, and the bird dog, and clinical trials now routinely use them for ordinary back pain. He also specifies a warm-up first, the cat-camel, because it restores motion without pushing the spine to its limits. The protocols favour short repeated holds, commonly around seven seconds, since the goal is endurance rather than maximum strength. Now the honest part. Trials pitting these three against other structured exercise programmes tend to find them broadly comparable rather than clearly better. That fits the wider picture for backs: exercise helps, and which sort you choose matters less than whether you keep doing it.
| 3 exercises chosen for strength without spinal squeeze |
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| 7 seconds the hold used in the protocols, repeated rather than extended |
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| Even is how they compare against other good exercise programmes |
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Not magic, then. Just a sensible way to build a back that costs the spine very little while you do it.
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MOVEMENT OF THE WEEK
The cat and camel
Do this one before the bird dog, not after. McGill specifies it as the warm-up, to take the stiffness out of the spine without loading it.
| 1. | On hands and knees, let your belly sink and your head come up gently. |
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| 2. | Then round your back upward like a cat and let your head drop. |
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| 3. | Move slowly between the two, about ten cycles. This is motion, not a stretch. |
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HOW TO PROGRESS
| Starting out | 5 slow cycles, small range |
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| Building | 10 cycles before the bird dog |
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| Stronger | Use it before any floor work |
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Do not push to the end of the range. The aim is easy motion, not a deep stretch.
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WHAT THE EVIDENCE SAYS
Three old favourites for backs, graded
Stability work like the bird dog A sound choice, and gentle on the spine while you do it. Not proven superior to other good programmes, but it needs no equipment and is hard to get badly wrong. |
Sit-ups for back protection The old advice, and the reason these replacements exist. Repeatedly bending a loaded spine is a costly way to strengthen the muscles around it. |
Toe touches to loosen a stiff back Another inheritance worth questioning, particularly first thing in the morning when the discs are fullest. The cat and camel gives you motion at far less cost. |
Ask a physical therapist before starting if you have had spinal surgery, osteoporosis, or pain travelling into a leg.
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WORTH KNOWING
Perfectly still
That is how much your lower back should move during a bird dog. None at all. Everybody assumes an exercise means motion, and here the achievement is the opposite. The arm goes, the leg goes, and the thing in the middle refuses to join in.
From how the exercise is designed.
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QUICK POLL · TAP TO ANSWER
Can you get down to the floor and back up?
It decides whether floor exercises are any use to you. Just press send.
We read every reply.
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