A ruptured Achilles is the kind of injury that doesn't just sideline your body — it parks your whole identity in a corner. One push off, one pop, and suddenly the runner, the hiker, the player, the parent who runs after kids in the garden… all of that goes on pause.
I've rehabbed many people through this injury over the years, and I've stood next to enough crying patients in clinic to know that the timeline matters as much as the exercises. Not because there's a magic week where everything heals — there isn't — but because knowing what season you're in gives you something to hold onto when the calf looks like a deflated balloon and you're starting to forget what your running shoes feel like.
So let me walk you through it the way I'd walk a friend through it: season by season, week by week, with the realistic version of what each phase actually feels like.
Why I Wrote This as a Seasonal Timeline
Most Achilles rehab guides give you a list of milestones in weeks. That's fine clinically, but it ignores something I've noticed in my own training and in everyone I've worked with: the body recovers in seasons, not in spreadsheet rows.
There's a winter phase — boot life, quiet, dark, frustrating. There's an early spring — buds of strength, the first proper heel raises. There's a high summer of plyometrics and hopping where you start to feel like an athlete again. And there's an autumn of return-to-sport where you have to be patient with the cooling weather and your still-warming tendon.
The other reason I think of it this way: the calendar will pass whether you do the work or not. Eight months will arrive. The only question is whether you arrive with a calf that's ready, or one that's still pretending.
Quick disclaimer before we go further: this is general physiotherapy education from someone who works with athletes, not a personalised plan. Your surgeon and your treating physio know your case. Follow them first. Use this as the map, not the GPS.
Weeks 0–2: Boot Life (The Quiet Winter)
Whether you had surgical repair or you're going the conservative route, the first two weeks look pretty similar from the outside: a boot or cast, plantarflexed (toes pointed down), non-weight-bearing or partial weight-bearing depending on protocol.
What's actually happening in there. The tendon ends are knitting together. The collagen fibres laid down in these first weeks are weak and disorganised — think wet tissue paper, not rope. This is why everyone gets twitchy about protocols. Too much load too early and you tear it again. Too little load for too long and you lose so much calf you'll spend a year trying to rebuild it.
What you can actually do.
- Ice and elevate. Boring. Essential. Especially the first ten days.
- Move what you can move. Hip exercises on the floor. Core work lying down. Upper body if you have access to bands or light weights.
- The other leg keeps training. Single-leg cycling on a stationary bike with the booted leg resting. Single-leg deadlifts holding a chair for balance. Cross-education is real — training the uninjured side actually preserves some strength on the injured side.
- Sleep with the leg elevated on a pillow.
- Eat like you're recovering, because you are. Protein every meal. Don't crash-diet because you're not running.
The emotional bit. This phase is the hardest mentally for most active people. You watch the trails get muddy without you. You scroll past races. Your training group meets up and you're on the sofa. I tell people: this is winter. Winter is short. The work you do here is invisible, but it's not nothing — you're protecting the repair, you're keeping the rest of the body honest, and you're rehearsing patience, which you'll need for the next eight months.
Weeks 2–12: Controlled Loading (Early Spring Buds)
Somewhere around week 2 to 4, depending on your surgeon, the boot starts to "talk to you" differently. Heel wedges come out one by one. You move from non-weight-bearing to partial to full. By around week 8 to 12 most protocols have you out of the boot in a normal shoe with a heel lift.
The goals of this phase.
- Restore range of motion gradually. Not all at once. Forced dorsiflexion in this phase has caused re-ruptures. Respect it.
- Start gentle loading: seated heel raises, then standing two-legged heel raises with both feet on the floor, then with the heel slightly off a step.
- Ankle circles, towel scrunches, calf isometrics (pressing the foot down into a wall) — small but consistent.
- Build up the rest of the chain: glutes, hamstrings, hip stability. If you've read my piece on gluteus medius exercises that actually fix hip stability, most of those can be done from week 4 onward and they pay you back massively when you start running again.
- Hydrotherapy if you have access. Walking in chest-deep water is a beautiful way to load the tendon at a fraction of bodyweight.
What this phase looks like in real life. You start to feel a tiny bit human. You can shower without a bag on your leg. You can drive (if it's the left leg, or once you're cleared on the right). You start to dread the boot less. But you also see how much calf you've lost. The injured leg looks like it belongs to someone else.
That's normal. That's the leg the next six months are for.
Months 3–6: Strength and Early Plyometrics (Late Spring into Summer)
This is where the work gets interesting. You're out of the boot. You're walking. The temptation to test things prematurely is enormous, and this is where I see people undo months of careful loading because they tried to run before the calf was ready.
The non-negotiable test of this phase: heel raises.
You need to build up to:
- 25+ single-leg standing heel raises through full range, both sides roughly equal.
- Eventually, single-leg heel raises with the heel hanging off a step, full controlled descent.
- Eventually, single-leg heel raises with added load (backpack, weight).
If you can't do these, you can't run. Full stop. The Achilles is asked to handle roughly 6–8 times bodyweight during running. If your calf can't manage one bodyweight repeatedly on one leg, the tendon is going to be the one absorbing what the calf can't.
Early plyometrics. Once heel raises are solid, you can start to teach the tendon to be springy again:
- Double-leg pogo hops in place
- Skipping on the spot
- Box step-downs
- Eventually single-leg hops, then hops for distance
Tendon tissue needs spring-like loading to remodel properly. Just doing slow strength work forever leaves you with a stiff tendon that can't store and release energy. This is the phase where the tendon learns to be a tendon again.
Pain rules. A bit of discomfort during loading is okay if it settles within 24 hours and doesn't worsen week to week. Sharp pain, swelling, or pain that lingers — back off and let your physio see it. The principles here are similar to the ones I lay out in my at-home Achilles tendonitis routine, except your tendon has been through something much bigger and tolerances are lower.
Months 6–9: Return to Running (Late Summer to Early Autumn)
If everything has gone well, somewhere between month six and nine you start running again. This is the moment everyone has been waiting for, and the moment most people mess up.
The honest first run. It is not "a run." It's a walk-jog. Something like 1 minute jog, 4 minutes walk, repeated 4–6 times. On flat ground. On a soft surface if possible. In shoes that don't argue with your Achilles.
The progression. Add jog time slowly. A common framework: increase running time by no more than 10% per week, and only if the previous week was symptom-free for 24 hours after each session. Run every other day at most for the first six weeks. The tendon needs the recovery day more than you need the consecutive day.
Footwear matters more now than it ever has. A flat shoe with zero cushioning under the heel is brutal on a freshly returning Achilles. So is a very stiff shoe that fights your natural push-off. You want something with a slight heel drop and a forgiving forefoot. Good supportive socks help too — this is the late-stage loading phase where calf-friendly compression and ankle support can take some of the edge off long days on your feet. Inside our range, options like HYKLE Ankle Compression Socks or fuller-leg HYKLE Compression Socks are what I'd reach for on a teaching day or a long walk during this phase. Not a magic bullet — supportive scaffolding while the tendon does the real work.
A short personal note. A few of my callanetics students have come back from much smaller Achilles injuries with the same complaint: "I felt fine at six weeks, so I ran, and now I'm at four months and worse than where I started." Every single time. The tendon doesn't care that you feel fine. It cares about progressive load. Honour the timeline.
If you've been through a setback like this before, the framework in restarting training after a setback is the same scaffolding I'd use here.
Months 9–12: Return to Sport (Autumn into Winter)
Running in a straight line at conversational pace is not the same as sport. Football, basketball, trail running with technical descents, tennis, climbing, even fast hill walking with a heavy pack — all of these load the Achilles in ways that running on a track does not.
Before you say yes to sport again, can you:
- Run for 30 minutes continuously, comfortable pace, no symptoms next day?
- Single-leg heel raise with full range to fatigue (30+ reps) on both sides, roughly equal?
- Hop on one leg ten times in place, then ten times forward, without pain or asymmetry?
- Sprint at 80% on a flat surface for short bursts without flinching?
- Run downhill comfortably (this is where Achilles re-injuries love to happen)?
If you tick those, you're ready to start adding sport-specific drills — change of direction, accelerations and decelerations, sport-specific cuts. Build them in gradually. Don't go from rehab gym to full-contact match day in one week.
For ultra runners specifically. Don't make your first race a 50K. Pick a 10K. Then a half. Then build. Your tendon needs to see the volume in training before it sees it in a race. I've written about how form falls apart on long runs and what tends to keep mine honest over here — same logic applies, just with extra caution while the repaired tendon is still settling.
What Most People Get Wrong
Skipping the boring strength work. Heel raises for months feels mind-numbing. Do them anyway. Calf strength asymmetry persists for years after Achilles rupture if you don't chase it deliberately, and it's the single biggest predictor of re-rupture and ongoing problems.
Comparing themselves to elite athletes. Pro footballers come back at 5–6 months because they have full-time rehab teams, daily monitoring, hyperbaric chambers, and a paycheque depending on it. You probably don't. Nine to twelve months is the honest civilian timeline.
Ignoring the other side. Your "good" leg also loses strength during this process — less than the injured side, but still a lot. Train both legs. The day you start running again, both calves need to be ready.
Stopping rehab when running starts. Running is not rehab. Running is the test. You should still be doing heel raises, hops, single-leg strength, and balance work well into your first year back. The tendon keeps remodelling for 12–18 months after rupture.
The Realistic Year
If I had to summarise the whole journey on one page for someone who just got injured this morning:
- Month 1: Protect the repair. Move what you can.
- Months 2–3: Reintroduce load gently. Get out of the boot. Walk normally.
- Months 4–6: Build the calf back. Earn your heel raises. Add hops.
- Months 6–9: Walk-jog to easy running. Be patient.
- Months 9–12: Sport-specific work. First small race or match. Keep doing rehab.
- Year two: You're a real athlete again, with a tendon that's stronger than it was before — because you actually trained it properly.
That's the deal. It's long. It's frustrating. It's also entirely doable, and the people who come out the other side most often tell me they came back better, smarter, and with stronger calves than they had before they got hurt.
If you're reading this in a boot right now, or you just had surgery last week, or you're watching someone you love sit on the sofa feeling like an old version of themselves — the season will turn. It always does. Do the small work in the small season, and the big season will arrive ready.