Training Blog · ACL and skiing
When can I ski after ACL surgery?
The short answer
Most surgeons clear skiing somewhere around 9 to 12 months after ACL reconstruction, and only once you pass strength and hop testing. Time alone isn't the green light. Research on return to sport after ACL reconstruction has found reinjury risk is lower for people who wait at least nine months and whose quad strength is close to the other leg (a common benchmark is 90% or better). Your surgeon makes the final call.
I get this question every fall in Reno. Someone tore their ACL last season, rehab went well, and now Mt. Rose is opening. Here's how I think about it as a coach who has prepared World Cup and big mountain skiers and a lot of regular Tahoe skiers coming back from knee surgery.
Why skiing is a tough sport to return to
Skiing loads the knee in ways daily life never does: long stretches of eccentric quad work, fast edge changes, and twisting falls with a long lever (your ski) attached to your foot. Snow conditions change turn to turn. And you do it for hours, so your mechanics have to hold up when you're tired. A knee that feels fine walking around can still be far from ready for that.
What "ready" should look like
Before skiing, I want to see these in testing, and I share the results with the client's surgeon and physical therapist:
- Quad strength on the surgical leg at least 90% of the other side.
- Single-leg hop tests (single, triple, crossover, timed) near that same level of symmetry, with clean landings.
- Single-leg squat and landing quality with the knee tracking over the foot, even when fatigued.
- Lateral and reactive control: quick side-to-side work without the knee caving in.
- Conditioning good enough to ski a few hours without your form falling apart.
- Confidence. If you're scared of the knee, you'll ski defensively and in the back seat, which is its own risk.
The phases between PT and the mountain
| Phase | Focus |
|---|---|
| Late PT and handoff | Full knee extension, quad activation, basic single-leg strength. Your PT leads. |
| Strength | Heavier single-leg work, hamstring strength, eccentric quad work. |
| Power and landing | Jumps, landings, and hops, progressed from two legs to one. |
| Ski-specific | Lateral power, reactive drills, and conditioning that matches a ski day at altitude. |
| Testing | Strength and hop testing, shared with your surgeon and PT. |
Your first days back on snow
- Pick good conditions. Groomed runs on a clear day. Skip flat light, ice, and heavy crud early on.
- Go short. Plan a half day and stop before your legs are cooked. Fatigue is when control goes.
- Build terrain gradually. Groomers first, then steeper groomers, then bumps, trees, and off-piste over several weeks.
- Check your bindings. Have a shop set them correctly for your weight, height, age, and ability.
- Keep training. One or two strength sessions a week during the season keeps the knee from losing what you built.
Should I wear a knee brace?
Some surgeons recommend a functional brace for the first season back, others don't. It's a question for your surgeon. A brace is not a substitute for strength, and it doesn't replace testing.
How we help in Reno
Performance EDU Fitness in south Reno trains people from pre-surgery prehab through return to sport. Kime Performance Physical Therapy is in our building at 3000 Airway Drive, so the handoff from PT to training happens under one roof. See our ACL return to sport program or our ski prep program.
Quick answers
Can I ski 6 months after ACL surgery?
Most surgeons will say that's too early. Research on return to sport suggests waiting at least nine months and passing strength and hop testing lowers reinjury risk. Ask your surgeon.
Is snowboarding easier on the knee than skiing after ACL surgery?
The injury patterns are different, but snowboarding still involves landings, falls, and twisting. The same testing and gradual return apply.
What if it's my second ACL surgery?
Be more patient, not less. Testing and in-season strength work matter even more.
This article is general education, not medical advice. Your surgeon and physical therapist decide when you're cleared to ski.
Find out where your knee stands.
A 60-minute movement evaluation ($125) shows what your knee can handle now and what it takes to get back on skis.
