# Ankle Sprain, Achilles, ACL and Hip Labrum Research

> Six 2026 sports medicine studies on ice for ankle sprains, Achilles eccentrics, patellofemoral pain, ACL prevention, recruit injuries and FAI surgery.

URL: https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum

Published: 2026-10-26 · Research roundup · PhysioAI

This roundup covers six sports medicine studies published in 2026, on ankle sprains, Achilles tendinopathy, patellofemoral pain, ACL injury prevention, injury prevention in military recruits and hip arthroscopy for femoroacetabular impingement (FAI). Together they suggest that supervised, targeted rehabilitation matters more than handouts and passive add-ons.

## Key takeaways

- Ice added to PEACE & LOVE rehabilitation reduced ankle sprain pain slightly, but not by a clinically important amount.
- Unsupervised home eccentric exercise for chronic Achilles tendinopathy did no better than sham arm exercises in the short term.
- An app combining home exercise with cognitive behavioural therapy (CBT) beat education for chronic patellofemoral pain.
- ACL prevention training changed knee loading only in high-risk adolescent female footballers.
- Labral repair during FAI surgery was associated with fewer later hip replacements than debridement.

## Ice on top of PEACE & LOVE for ankle sprains

A randomised controlled trial included 60 physically active adults with a grade I or II lateral ankle sprain. Participants applied either a cold pack or a room-temperature pack for 20 minutes, three times a day, for 72 hours. Both groups followed the same four-week rehabilitation program based on the PEACE & LOVE framework. At day 7, the ice group had 1.1 points less pain and 1.8 cm less swelling, but the pain difference missed the 2-point minimal clinically important difference. Function, dorsiflexion range, painkiller use and re-injury were comparable between groups.

**What it means in the clinic:** ice can help with comfort early on, but it is not the treatment. Progressive loading and getting the ankle moving do most of the work.

*Source: Halder et al., Journal of Science and Medicine in Sport 2026 (PMID 42869718).*

## Home eccentrics for Achilles tendinopathy vs sham

This trial randomised 68 people with chronic midportion Achilles tendinopathy to 12 weeks of daily, unsupervised eccentric calf exercise or a sham program of upper-limb exercises. The VISA-A score improved by 10 points with eccentrics and 6 points with sham, and the difference was not statistically significant. Results were short-term only, and 15% of participants were lost to follow-up.

**What it means in the clinic:** handing a patient an eccentric exercise sheet is not the same as tendon rehabilitation. Supervision, progression and a load that matches the patient are probably what make tendon programs work.

*Source: Janssen et al., Journal of Science and Medicine in Sport 2026 (PMID 42575766).*

## Exercise plus CBT in an app for patellofemoral pain

A multicentre randomised trial enrolled 216 people with chronic patellofemoral pain. One group used an eight-week app that combined home exercise with weekly CBT; the other received education and a single exercise session. At eight weeks, the app group had 12.5 mm lower usual pain on a 0–100 scale, a 5.2-point better knee function score on the Anterior Knee Pain Scale (AKPS), and less pain catastrophising. Adherence was over 80%. The comparison group received minimal care, and four authors are affiliated with the app developer, so the results should be read with that in mind.

**What it means in the clinic:** chronic knee pain is not only a knee problem. Pair the loading program with attention to how the patient thinks about pain.

*Source: Park et al., British Journal of Sports Medicine 2026 (PMID 42692805).*

## ACL prevention training worked mainly in high-risk players

A secondary analysis of a randomised trial included 150 adolescent female football (soccer) players who did six weeks of neuromuscular training. Players classified as high risk reduced their knee abduction load from 37.5 to 25.2 N·m and kept most of that improvement at six months. Low-risk players showed no change. This is a biomechanical laboratory measure, not a measure of injury rates.

**What it means in the clinic:** not every athlete gets the same benefit from prevention work. Screening can show who needs it most, so time and effort go where they change something.

*Source: Taylor et al., Journal of Orthopaedic and Sports Physical Therapy 2026 (PMID 42823643).*

## Neuromuscular training vs load management in recruits

A meta-analysis of 33 studies covering 49,062 military and first-responder recruits compared injury-prevention approaches during recruit training. Neuromuscular training reduced injuries; training load management alone did not. The authors rate the evidence as very low certainty.

**What it means in the clinic:** monitoring load has a place, but it does not build capacity on its own. Athletes and recruits still need strength, control and progression.

*Source: Mckee et al., Journal of Orthopaedic and Sports Physical Therapy 2026 (PMID 42823647).*

## Labral repair vs debridement in FAI surgery

A meta-analysis of 10 studies including 2,730 hips compared arthroscopic labral repair with labral debridement in people with femoroacetabular impingement. Conversion to total hip replacement occurred in 3.5% of hips after repair and 7.4% after debridement. Hip function scores were similar between the two approaches. Most of the evidence was observational.

**What it means in the clinic:** what the surgeon did to the labrum may matter in the long term. Reading the operation note helps you set realistic expectations for athletes returning after hip arthroscopy.

*Source: Bohn et al., American Journal of Sports Medicine 2026 (PMID 42578456).*

## The pattern across these studies

Unsupervised Achilles eccentrics matched sham. Ice added little on top of loading-based ankle rehabilitation. Neuromuscular training outperformed simply capping load, and prevention training worked best in the athletes who were at high risk. The practical lesson is to supervise more, hand out less, and target interventions to the people who need them.

## Track new sports research with PhysioAI

PhysioAI's [Advances feed and Review of Literature](https://physioai.in/research) bring new physiotherapy research into one place, with filters for specialty and evidence type and AI summaries grounded in each abstract. You can also turn a clinical question into a screened, cited review built from real papers, then read the key studies yourself.

## The Instagram post

This article is also a 9-image Instagram carousel by PhysioAI:

1. You were busy. Sports science wasn’t. (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/01.webp)
2. Ice on top of PEACE & LOVE: a little less pain, not a meaningful gain (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/02.webp)
3. Home eccentrics for Achilles pain did no better than sham arm exercises (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/03.webp)
4. Patellofemoral pain: exercise plus CBT in an app beat education (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/04.webp)
5. ACL prevention training changed knee loading only in high-risk girls (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/05.webp)
6. Capping training load didn’t cut injuries. Neuromuscular training did. (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/06.webp)
7. FAI surgery: labral repair halved later hip replacements vs trimming (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/07.webp)
8. Supervise more, hand out less (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/08.webp)
9. New stories. Every Sunday. (https://physioai.in/blog/sports-science-ankle-achilles-acl-hip-labrum/09.webp)