Quadriceps Strengthening ACL Reconstruction

NCT ID: NCT07015541

Last Updated: 2026-01-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-31

Study Completion Date

2027-11-30

Brief Summary

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The purpose of this study is to investigate the effects of quadriceps focused interventions on knee function and biomechanics in adolescent patients with anterior cruciate ligament reconstruction (ACLR)

Detailed Description

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Conditions

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ACL Tear

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Additional neuromuscular electrical stimulation (NMES) and blood flow restriction (BFR)

Participants receive a 6-week NMES intervention from week 1 to week 6 post-surgery, followed by a 10-week BFR intervention from week 7 to week 16. Participants also receive standard rehabilitation care as part of their routine postsurgical recovery process.

Group Type EXPERIMENTAL

NMES and BFR

Intervention Type OTHER

NMES is applied when patients perform quadriceps strengthening exercises. BFR is applied during compound exercises.

Standard physical therapy

Intervention Type OTHER

Standard physical therapy (week 1-16) includes interventions for typical impairments following ACLR. The initial phase will focus on pain and effusion control, restoration of knee range of motion, followed by gait normalization, lower extremity strength training, then running and plyometrics.

Standard rehabilitation

Participants receive standard rehabilitation care as part of their routine postsurgical recovery process.

Group Type ACTIVE_COMPARATOR

Standard physical therapy

Intervention Type OTHER

Standard physical therapy (week 1-16) includes interventions for typical impairments following ACLR. The initial phase will focus on pain and effusion control, restoration of knee range of motion, followed by gait normalization, lower extremity strength training, then running and plyometrics.

Interventions

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NMES and BFR

NMES is applied when patients perform quadriceps strengthening exercises. BFR is applied during compound exercises.

Intervention Type OTHER

Standard physical therapy

Standard physical therapy (week 1-16) includes interventions for typical impairments following ACLR. The initial phase will focus on pain and effusion control, restoration of knee range of motion, followed by gait normalization, lower extremity strength training, then running and plyometrics.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* no history of knee injury/surgery of the contralateral limb

Exclusion Criteria

* (1) bilateral knee injuries
* (2) prior knee ligament injury and/or surgery
* (3) multiple ligament injuries and/or ruptures
* (4) conditions in which NMES and BFR are contraindicated
Minimum Eligible Age

13 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Alexandra Abbott

Clinical Assistant Professor (Orthopedic Surgery)

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Alexandra M Abbott, MD

Role: PRINCIPAL_INVESTIGATOR

Stanford School of Medicine

Locations

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Stanford Medicine Children's Health

Sunnyvale, California, United States

Site Status RECRUITING

Countries

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United States

Facility Contacts

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Chao-Jung Hsu, PhD

Role: primary

650-313-1808

Jeffery Morgan, MS

Role: backup

650-313-1808

References

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Ohta H, Kurosawa H, Ikeda H, Iwase Y, Satou N, Nakamura S. Low-load resistance muscular training with moderate restriction of blood flow after anterior cruciate ligament reconstruction. Acta Orthop Scand. 2003 Feb;74(1):62-8. doi: 10.1080/00016470310013680.

Reference Type BACKGROUND
PMID: 12635796 (View on PubMed)

Kim KM, Croy T, Hertel J, Saliba S. Effects of neuromuscular electrical stimulation after anterior cruciate ligament reconstruction on quadriceps strength, function, and patient-oriented outcomes: a systematic review. J Orthop Sports Phys Ther. 2010 Jul;40(7):383-91. doi: 10.2519/jospt.2010.3184.

Reference Type BACKGROUND
PMID: 20592480 (View on PubMed)

Other Identifiers

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80260

Identifier Type: -

Identifier Source: org_study_id

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