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A Pilot Study on Exercise After Achilles Tendon Rupture

NEMEX-ATR: A Randomized Pilot Study on Early Neuromuscular Exercise in Non-surgically Treated Achilles Tendon Rupture

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01298024
Acronym
NEMEX-ATR
Enrollment
30
Registered
2011-02-17
Start date
2011-03-31
Completion date
2013-04-30
Last updated
2022-12-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Achilles Tendon Rupture

Keywords

Achilles tendon rupture, Non-surgical treatment, Exercise, Neuromuscular training

Brief summary

The purpose is to study the effect of early NEuroMuscular EXercise (NEMEX) versus conventional treatment (late exercise) in patients with acute non-operative achilles tendon rupture (ATR).

Detailed description

There is currently no consensus on treatment for achilles tendon rupture with regard to surgical or non-surgical treatment. In addition, the optimal time to start exercise treatment after the injury, with or without surgery, is not well understood. Animal studies show positive effects of early mobilization in tendon healing. Neuromuscular exercise has shown better effects than strength exercise in people with knee injury or knee disease. There are few studies in humans focusing on exercise as treatment, without surgical intervention, after ATR.

Interventions

OTHEREarly Neuromuscular Exercise

30 patients are randomized to early neuromuscular exercise (n=15) or treatment as usual, i.e., late exercise (n=15). Both groups are given an orthosis and are instructed to wear this for eight weeks. The experimental group starts with a structured exercise program one week after the diagnosis. The patients attend one training session/week during eight weeks, guided by a physical therapist. The level of training is progressed during this time. The patients in the control group (treatment as usual) are given exercise instructions and information at one occasion; 2 weeks after diagnosis. Both groups are followed up, by a blinded assessor, with valid and reliable self-reported and physical function outcomes at 1, 4, 8 and 16 weeks after injury.

Sponsors

Lund University
CollaboratorOTHER
Region Skane
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

1. Men and women 18 - 60 years. 2. The patient should before the achilles tendon rupture have been able to walk independently without aid, walk without limping, run/jog and be able to jump on one leg 3. The patient shall be able to read, understand and to assimilate the written information about the study.

Exclusion criteria

1. Previous achilles tendon rupture 2. Acute achilles tendon rupture, more than 5 days. 3. Medical restrictions regarding physical exercise, not related to the achilles tendon rupture

Design outcomes

Primary

MeasureTime frameDescription
Heel-raiseWeek 16Functional performance of calf muscles. The ability to perform a plantar flexion is assessed in a prone position at 1 and 4 weeks after the injury. At 8 and 16 weeks after the injury, the ability to perform a heel-raise standing on one leg is assessed.

Secondary

MeasureTime frameDescription
30-meters walk testAt weeks 8 and 16The patients walks a distance of 30 m at self-selected speed. Time and any limbing is recorded.
Single-limb mini squatAt week 16The patients performs single-limb mini squats. The position of the knee in relation to the foot is assessed. The test is performed on both legs.
VAS PainAt weeks 1, 4, 8 and 16The patients reports pain on a 0-10 visual analog scale.
Range of MotionAt weeks 1, 4, 8 and 16The range of plantar and dorsal flexion motions in the talocrural joint are measured with a handheld goniometer.
The calf muscle circumferenceAt weeks 1, 4, 8 and 16Calf muscle circumference is recording using a measuring-tape.
Foot and Ankle Outcome Score (FAOS)At weeks 1, 4, 8 and 16A disease specific questionnaire for patients with foot and ankle injury.
Single limb standing balanceAt weeks 4, 8 and 16The patients stands on one leg with eyes open as long as possible, maximum time 60 seconds. Both legs are tested.
Physical Activity Level ScaleAt weeks 1, 4, 8 and 16A scale that measures the patient's level of daily physical activity.
Re-ruptureWeeks 1-16Joint specific adverse event; recorded by any patient seeking medical care related to the achilles tendon rupture during the study period.
Deep Venous thromboembolismWeeks 1-16Joint specific adverse event; recorded by any patient seeking medical care related to the achilles tendon rupture during the study period.
Sick leaveMeasured regularly from baseline until week 16The number of weeks the patient are not at work caused of the achilles tendon rupture is registered.
Modified Forward lunge from stairsweek 16The patient stands on the first step of a staircase and is encouraged to take step down with one leg, the other leg kept on the step. The examiner stands in front of the patient and observes position of joints in relation to each other.
Short-Form 36 (SF-36)At weeks 1, 4, 8 and 16A generic measure of health status.

Countries

Sweden

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026