A Prehab Strengthening Program Prior to ACL Surgery on Lower Limb Structure and Function
ACL-Strong
The Effects of a Lower Limb Strengthening Training Program During Prehabilitation Prior to ACL Surgery on Lower Limb Structure and Function : a Randomized Clinical Trial
1 other identifier
interventional
75
1 country
1
Brief Summary
Atrophy and weakness are ubiquitous after a ACL rupture and associated with a worsened long-term recovery of individual capacities, despite surgery and rehabilitation. Preoperative rehabilitation (prehab) is believed to prepare patients for surgery and post-operative rehabilitation. However, prehab programs are highly variable, and do not always aim to develop/maintain neuromuscular parameters. The purpose of this study is to assess the effects of a lower limb strengthening training program during prehab prior to ACL Surgery on lower limb structure and function.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Sep 2022
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 2, 2022
CompletedFirst Posted
Study publicly available on registry
May 16, 2022
CompletedStudy Start
First participant enrolled
September 1, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2024
CompletedMay 16, 2022
May 1, 2022
1 year
May 2, 2022
May 9, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (6)
Changes in muscle strength of the knee muscles
Maximal muscle strength of knee flexors/extensors will be assessed using isokinetic dynamometer, and extension and flexion torques during a maximum voluntary contraction (MVC). Unit : Newton meter (Nm)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Change in muscle volume of the knee muscles
Muscle volume of the knee muscles (hamstring and quadriceps) will be assessed using 3D ultrasound imaging, at rest in a prone (hamstring) or supined (quadriceps) position. Unit : millimeters (mL)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Change in the stiffness of knee muscles
An index of muscle stiffness will be assessed via the shear modulus using ultrasound shear wave elastography, at rest in a prone (hamstring) or supined (quadriceps) position. Unit : kiloPascals (kPa)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Change in lower limb function
Single leg hop test. Participants will be instructed to jump as far as possible on a single leg, without losing balance and landing firmly. The distance is measured from the start line to the heel of the landing leg. Unit : centimeters (cm)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Change in patient's opinion about the knee and associated problems
Patient's self-related opinion about symptoms and activity will be assessed using the International Knee Documentation Committee Subjective Knee Form (IKDC).The IKDC is consisted of 10 questions. Unit : score, scaled between 0 (=bad) and 100 (= good function)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Change in patient's opinion to return to sport
Patient's self-related opinion out the impact of returning to sport will be assessed using the Anterior Cruciate Ligament - Return to Sport after Injury (ACL-RSI) questionnaire. The ACL-RSI consists of 12 questions. Unit : score, scaled between 0 (=bad) and 100 (= more psychologically ready to return to sport)
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Secondary Outcomes (1)
Health consumption
week 0 (baseline); week 9 (post-intervention, short term) ; 6 months after the surgery (post-intervention, mid-term) and 12 months after the surgery (post-intervention, long-term)
Study Arms (3)
Strengthening
EXPERIMENTALParticipants received a 9-weeks strengthening-based prehabilitation program before ACL reconstruction, followed by a standardized post-operative rehabilitation program
Conventional
ACTIVE COMPARATORParticipants received a 9-weeks conventional prehabilitation program (targeting pain knee mobility) before ACL reconstruction, followed by a standardized post-operative rehabilitation program
Control
NO INTERVENTIONNo prehabilitation program Participants received only a standardized post-operative rehabilitation program
Interventions
3x/w, 9 wks supervised strengthening program, during prehabilitation to ACL surgery
Participants received a 9-weeks conventional prehabilitation program (targeting pain knee mobility) before ACL reconstruction, followed by a standardized post-operative rehabilitation program
Eligibility Criteria
You may qualify if:
- age : 18 to 55
- first episode of ACL injury
- having a planed ACL reconstruction
- volunteer to participate
You may not qualify if:
- age : \<18 or \>55
- previous episode of ACL injury/reconstruction
- no ACL reconstruction
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Université de Nantes - MIP UR 4334 (Motricity, Movement, Interactions)
Nantes, France
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Guillaume Le Sant, PhD, PT
Université de Nantes
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Guillaume Le Sant, PhD,PT. Physiotherapist and Researcher
Study Record Dates
First Submitted
May 2, 2022
First Posted
May 16, 2022
Study Start
September 1, 2022
Primary Completion
September 1, 2023
Study Completion
September 1, 2024
Last Updated
May 16, 2022
Record last verified: 2022-05
Data Sharing
- IPD Sharing
- Will not share