Knäträning program
Chat history
You said:
ChatGPT said:
Om det gör ont under knäskålen vid ansträngning, är det ofta ett tecken på något av följande tillstånd:
1. Patellofemoralt smärtsyndrom (PFSS) – även kallat “främre knäsmärta”
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Vanlig orsak till smärta under knäskålen, särskilt hos aktiva personer.
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Smärtan förvärras ofta vid:
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Gång i trappor (framför allt nerför)
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Knäböjningar
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Löpning
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Sittande länge med böjt knä (“movie sign”)
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2. Hopparknä (patellar tendinopati)
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Smärta precis nedanför knäskålen, där knäskålssenan fäster.
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Typiskt vid hopp, löpning eller snabb acceleration.
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Vanligt hos idrottare, särskilt inom basket, volleyboll, friidrott.
3. Slemsäcksinflammation (bursit)
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Inflammation i slemsäcken under eller runt knäskålen.
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Kan orsakas av upprepad belastning eller tryck.
4. Osgood-Schlatter (hos ungdomar)
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Smärta lite längre ner, vid knöl på övre delen av skenbenet (tibia).
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Drabbar växande barn/tonåringar, ofta i samband med sport.
Rekommendation:
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Vila från provocerande aktivitet.
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Kyla efter belastning.
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Styrketräning (särskilt quadriceps) och stretching.
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Om det inte förbättras: kontakta sjukgymnast eller läkare för undersökning och ev. ultraljud eller röntgen.
Vill du beskriva mer exakt var smärtan sitter och i vilka rörelser den kommer? Då kan jag ge ett mer specifikt svar.
You said:
ChatGPT said:
Tack, din beskrivning stämmer mycket väl med patellofemoralt smärtsyndrom (PFSS).
Typiska kännetecken som du nämner:
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Smärta bakom eller under knäskålen
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Utlöses av:
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Cykling med kraft
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Knäböj
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Trappgång, särskilt nedför
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Ingen smärta i vila
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Lindras av att vila från belastning
Det handlar oftast om en obalans eller felspårning i hur knäskålen rör sig mot lårbenet vid böjning. Vanliga bakomliggande orsaker:
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Svaghet i lårmuskulatur (särskilt vastus medialis)
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Dålig höftkontroll
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Stram baksida eller yttre lår (iliotibialbandet)
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Överbelastning eller dåligt justerad cykel
Vad du kan göra:
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Minska belastningen tillfälligt
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Undvik tunga knäböj, intensiva cykelpass och trappor
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Stärk lårens framsida (quadriceps), särskilt vastus medialis
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Övningar som straight leg raises, minibands, terminal knee extensions etc.
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Stretch höftböjare och baksida lår
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Rulla och stretcha IT-bandet
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Se över cykelinställningar
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Sadelhöjd, pedalplacering och vevlängd kan påverka trycket bakom knäskålen
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Om det inte förbättras på några veckor kan en fysioterapeut hjälpa dig med specifika övningar och bedömning av rörelsemönster.
Vill du ha ett enkelt övningsprogram för detta?
You said:
ChatGPT said:
Ja, det är absolut åtgärdbart, och det låter som att du redan har hittat en mycket klok anpassning med elmotorn — just att undvika tung belastning i pressade vinklar (som i en uppförsbacke) är centralt för att minska belastningen på knäskålen vid PFSS.
Att det bara gör ont vid belastning stämmer också precis med detta syndrom – det är alltså inte en strukturell skada, utan snarare en funktionsstörning som kan tränas bort eller hållas i schack med rätt strategi.
Dina åtgärder är redan på rätt spår:
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Minskad kraft vid trampning → minskar trycket på knäskålens baksida
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Undvika att passera smärtgräns → låter området läka och undviker irritation
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Bibehållen aktivitet → mycket bättre än total vila, eftersom rörelse smörjer leden
Förslag för långsiktig förbättring:
Om du vill minska risken att det återkommer (eller kunna trampa hårdare ibland):
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Mjuk men konsekvent styrketräning
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Fokus på quadriceps, särskilt i raka benlägen, t.ex.:
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Bensträck i lätt motstånd
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Höjda ben (utan vikt), hålla kvar i 5–10 sek
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Väggsittning med lätt böjda knän
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Rörlighet och balans mellan muskler
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Stretch framsida & baksida lår, sätesmuskler
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Eventuellt foam-rolling av lårens utsidor
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Lyssna på smärtan som vägvisare
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Smärtfri träning = ok
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Lätt obehag = ibland ok
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Skarp smärta = backa
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Du verkar ha bra kroppskännedom och har redan gjort den viktigaste anpassningen. Om du dessutom bygger upp stabilitet kring knät lite i taget, kommer du troligen kunna trampa lite hårdare igen om du vill — men kanske aldrig på just den där uppförsbacken utan elassistans, och det är helt okej.
You said:
ChatGPT said:
Certainly! Here’s the translated section:
Suggestions for Long-Term Improvement:
If you want to reduce the risk of recurrence (or be able to pedal harder at times):
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Gentle but consistent strength training
Focus on the quadriceps, especially in extended knee positions, for example:-
Light resistance leg extensions
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Straight-leg raises (without weight), holding for 5–10 seconds
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Wall sits with knees slightly bent
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Mobility and muscle balance
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Stretch the front and back of the thighs, as well as the glutes
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Optionally, foam-roll the outer thighs (IT band area)
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Let pain guide you
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Pain-free exercise = good
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Mild discomfort = sometimes acceptable
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Sharp pain = back off
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Let me know if you want it in more formal medical English or as casual advice.
You said:
ChatGPT said:
That actually makes a lot of sense — and it’s more common than it might seem.
Why the “good” leg gets overloaded:
After a stroke, the non-affected leg often becomes the primary weight-bearing and working limb, compensating for weakness or imbalance in the affected side. Over time, this can lead to overuse injuries like patellofemoral pain syndrome (PFPS), especially if:
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The gait is asymmetrical (even subtly)
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The stronger leg handles most of the load during cycling, stairs, etc.
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Muscle patterns have adapted inefficiently
In your case, that chronic compensation has likely placed excessive repeated stress on the kneecap of the good leg — especially during powerful movements like cycling uphill.
The silver lining:
You’re already doing exactly the right thing:
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Letting the affected leg contribute more now that it’s painless
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Reducing overload with e-assist
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Considering long-term strengthening and balance training
If you’re open to it, you might benefit even more from:
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A physio assessment to evaluate gait symmetry
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Targeted bilateral leg training to share the load more evenly
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Light neuromuscular coordination work on the affected leg to further support your balance
Let me know if you’d like a short program or further explanation of any of those.
You said:
ChatGPT said:
Thanks for explaining — and what you describe is very typical and entirely understandable post-stroke.
You’re absolutely right:
A completely symmetrical gait after stroke is usually not possible,
even with full strength recovery, because motor control and coordination — not just muscle strength — are affected. That sideways, somewhat involuntary movement is likely due to:
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Spasticity or abnormal tone
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Altered motor patterns (from rewired brain circuits)
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Loss of fine control of specific joints, like hip, knee, or ankle
Even if strength returns, precision doesn’t always follow — especially in swing phase of gait, where smooth, coordinated movement is critical.
Why this matters for your knee:
Your stronger leg is:
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Stabilizing more
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Pushing off more
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Correcting imbalances from the affected leg’s swing
Over time, this repeated compensation can stress the patellofemoral joint, especially under load (like cycling uphill).
What can help:
You’re already adjusting wisely. For further support, consider:
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Neuromotor retraining (for the affected leg)
Small, controlled movements (even lying down or seated), to gently improve coordination — not strength, but timing and pattern. -
Bilateral functional training
Exercises like supported squats, leg presses, or step-ups where both legs share the load, but under control. -
Dynamic gait training (with or without assistive tech)
Even simple treadmill work with bodyweight support can help redistribute effort more evenly and reduce compensatory stress. -
Patellofemoral-specific management for the good leg
As we discussed: load management, quad retraining, mobility, and pain-guided progression.
Would you like me to sketch out a few practical exercises you can do that fit this context — balancing the needs of both legs?
You said:
ChatGPT said:
Great question — and the answer depends on which leg is doing the work during the step-up.
Here’s how to approach it:
🔹 If the painful (good) leg is the leading leg going up:
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It bears most of the load.
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That increases stress on the knee, especially the patellofemoral joint.
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✅ Good for quad strengthening — but only if pain-free or mild.
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⚠️ Avoid if it causes knee pain during or after.
🔹 If the stroke-affected leg is the leading leg:
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This can be useful for motor control, but:
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If it’s unstable, you may compensate with the good leg anyway.
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⚠️ Risk of weird sideways movement or poor tracking, unless well supported.
Safer approach for now:
Start with the painful leg as the trailing leg (i.e., the one that pushes up from the floor last):
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Let the affected leg lead the step-up (small step height).
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Focus on slow, controlled motion, holding a railing or support.
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The good/painful leg contributes less load this way.
Once that feels safe and pain-free, alternate:
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Try low step-downs (from a 10–15 cm height), where the good leg controls descent. It’s excellent for quad strength but less stress than full step-ups.
Would you like a simple progression plan — with step height, reps, etc.?
You said:
ChatGPT said:
Stair walking is excellent functional training — but for your situation, it’s a double-edged sword:
✅ Benefits:
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Improves strength in both legs (especially quads and glutes)
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Challenges balance, coordination, and weight shifting
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Trains real-life motor patterns
⚠️ Risks/Challenges:
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For the painful (good) leg:
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Going upstairs = high patellofemoral load → may provoke pain
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Going downstairs = even worse for the knee → higher joint compression, plus eccentric control demand
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For the stroke-affected leg:
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Reduced coordination or side sway may make stair walking unsafe without support
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Difficulty lifting the foot or placing it precisely can increase fall risk
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🔄 How to approach stair walking safely:
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Use a handrail (or two if possible)
It’s not cheating — it unloads the knees and increases safety. -
Go up leading with the affected leg (if it can manage)
“Up with the good, down with the bad” is the classic rule — but if your affected leg is pain-free and strong enough, use it going up. That lets the painful leg trail and push off less. -
Go down leading with the good/painful leg — cautiously
If it hurts, go sideways or step down one step at a time with both feet landing on each stair. -
Limit reps
Avoid long stair sessions. A few flights is fine; stop before pain appears.
If stair walking hurts, it’s best to treat it like strength training, not cardio:
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Low volume, high control
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Rest between bouts
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Pain = red flag to scale back
Would you like a recommendation for a good stair-walking alternative for cardio or leg work?
You said:
ChatGPT said:
Great — for step-ups, start low and build gradually. Here’s a safe progression for your case:
🔹 Recommended starting height:
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10–15 cm (4–6 inches)
That’s about the height of a thick book, a low aerobic step, or the bottom stair.
Why?
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Low enough to avoid stressing the painful knee
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Allows your stroke-affected leg to focus on balance and coordination
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Easier to control posture and movement quality
🔹 Progression plan:
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Start with 10–15 cm
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Master slow, controlled movement (both up and down)
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Pain-free? Stable? Then…
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Increase to 20 cm (~8 inches)
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About a normal stair height
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Only if both legs can handle it comfortably
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Max safe height for your use
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25–30 cm is probably the upper limit unless you’re very stable and pain-free
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No need to go higher — quality beats height
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Bonus tip:
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If using the stroke-affected leg to step up, focus on smooth lift, not speed.
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If using the painful leg to step up, ensure no sharp or delayed knee pain, even after.
Would you like a specific step-up exercise routine using that low height?
You said:
ChatGPT said:
Here’s a safe, stroke- and knee-friendly step-up routine, focused on control, strength, and balance:
✅ Step-Up Routine (Beginner, 10–15 cm step)
Frequency: 2–3× per week
Goal: Build control, strength, and symmetry without pain
🔹 Warm-up (3–5 min)
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March in place or slow walking
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Gentle knee bends (partial squats, no pain)
🔹 Step-Up Exercise (3 sets)
🔸 Set 1 – Leading with the affected leg
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Place affected leg on step
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Step up slowly, using arms on rail/support if needed
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Step down with control
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Do 8–10 reps
→ Focus: balance, coordination, smooth motion
🔸 Set 2 – Leading with the good (painful) leg
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Step up with painful leg
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Step down carefully
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Use hand support if needed
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Do 6–8 reps only, stop if knee pain appears
→ Focus: strength, but watch for discomfort
🔸 Set 3 – Alternating legs (optional)
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Step up with one leg, down with the other
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Alternate sides
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Do 10 total reps (5 each leg)
→ Skip this if coordination is tricky
🔹 Cool-down (2–3 min)
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Sit and stretch quads, hamstrings, and calves
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Gentle leg swings or ankle rolls
✅ Tips:
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Move slowly, especially on the way down (eccentric control)
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Stop at the first sign of knee pain
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Use both hands on a rail or chair for stability — no shame in that
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You can repeat the routine every other day
When this becomes easy and pain-free, increase:
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Reps per set (up to 12)
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Then sets (to 4)
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Then step height (up to 20 cm)