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Perturbation Training vs Functional Activities on Pain, ROM, Balance, and Function Post-ACL

Sponsor: Riphah International University • ClinicalTrials.gov ID: NCT07642752

Registry updated: 2026-09-24

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Description

Anterior cruciate ligament (ACL) injuries are among the most common and functionally disabling knee injuries, particularly in physically active individuals. Despite advancements in surgical techniques, optimal post-operative rehabilitation remains critical for successful functional recovery, minimizing re-injury risk, and restoring pre-injury performance levels

Interventions

Perturbation Training Group (Other)
Two-leg rocker board One-leg rocker board Roller board / stable (weight scale) surface Roller board / BOSU ball TheraBand feedback / perturbation training Simple sport-specific technique on rocker board Moderate demand sport-specific technique on rocker board Advanced sport-specific technique on rocker board This sequence reflects a progressive challenge to knee stability, beginning with bilateral balance tasks, advancing to unilateral control, and culminating in sport-specific perturbation drills.
Task-Oriented Functional Activities Group (Other)
Functional Recovery Tasks After ACLR Normal walking gait Bilateral squat Unilateral foundation exercises - Single leg squat Bilateral landing Running - Run on treadmill Bilateral plyometric - Bilateral drop jump Unilateral landing / deceleration - Single leg deceleration Unilateral plyometric - Single leg drop jump Change of direction ability / coordination - 90º cut maneuver Sport-specific movements - Movement control under sport-specific change of direction This sequence reflects a progressive load and skill development pathway, starting from basic gait and bilateral tasks, moving toward unilateral control, plyometrics, and finally sport-specific agility.
Control Group (Standard Rehabilitation Protocol) (Other)
Heating pad (5-10 minutes) TENS (short bursts, 10-15 minutes, frequency 100 Hz) Stationary cycling Gentle range of motion exercises Passive and active-assisted ROM Isometric quadriceps contractions Straight leg raises Quadriceps setting with a towel under the knee Closed-chain exercises (e.g., wall sits, mini-squats) Hamstring curls Double-leg stance on foam pad This set emphasizes pain relief, mobility restoration, and foundational strength before progressing to advanced neuromuscular or sport-specific tasks.

Eligibility criteria

Inclusion Criteria: * Age range: 18-45 years * Male participants only * History of Anterior Cruciate Ligament Reconstruction (ACLR) of 3 to 12 months * No prior ACL surgery on the affected knee * ACL reconstruction with autograft of hamstrings tendon * Knee flexion range of motion less than 120° * Extension lag less than or equal to 10° * Pain during functional activities Exclusion Criteria: * Any type of fracture * Concurrent ligamentous injury or repairable meniscus * Osteochondral defect * Any systemic and/or neurological illness * Rheumatoid arthritis * Osteomyelitis or any neurological disorders * Spinal disorders * Inflammatory conditions such as ankylosing spondylitis

Conditions

Anterior Cruciate Ligament Injuries

Locations

Ghurki Hospital Lahore — Lahore, Punjab Province, Pakistan

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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