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Study on the Effects of Unilateral Resistance Training on Lower Limb Muscle Strength and Symmetry After Anterior Cruciate Ligament Reconstruction Surgery

NCT07271173 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 48

Last updated 2025-12-09

No results posted yet for this study

Summary

Brief Summary Study type: Randomized controlled trial (interventional). Purpose: To find out whether six weeks of unilateral resistance training (URT) improves lower-limb strength and inter-limb symmetry more than traditional bilateral resistance training (BRT) after anterior cruciate ligament reconstruction (ACLR).

Main questions:

Does URT produce better limb-symmetry in knee flexor/extensor peak torque than BRT? Does URT lead to larger gains in feed-forward motor control, Lysholm knee score and International Knee Documentation Committee 2000 (IKDC 2000) subjective rating? Comparison: Participants will be randomly assigned to URT (each exercise done one leg at a time) or BRT (both legs work together). Training volume, frequency, session length and progression rules are identical in both groups.

What participants will do: After giving consent, complete baseline tests of strength, motor control and knee questionnaires. Attend 3 supervised sessions per week for 6 weeks. Each session lasts \~70 min:

5 min warm-up on cycle ergometer 5 min core-stability work 50 min strength circuit (6 exercises, 2 min between sets, 3 min between exercises) 10 min stretching/cool-down One-repetition maximum (1RM) re-tested at week 3 to adjust load. Final assessment within 3 days after the last training session (same tests as baseline).

Conditions

  • Anterior Cruciate Ligament Reconstruction Rehabilitation

Interventions

BEHAVIORAL

resistance training

After signing the informed consent form, the relevant indicators for the pre-trial tests can be conducted.Outcome assessments are conducted at baseline (1 day before the intervention) and 3 days after the final training session (day 45 of the study).The entire trial period lasts for 6 weeks, with 3 training sessions per week. The entire training process includes 5 minutes of warm-up (power bike), 5 minutes of core strength training, 50 minutes of muscle strength training, and 10 minutes of stretching training. The training methods of the two groups are only different in the muscle strength training method. The experimental group (URT group) performs unilateral resistance training for both lower limbs, while the control group (BRT group) performs bilateral resistance training for both lower limbs. There are a total of 6 training actions: towel roll compression training, sitting leg-cranking training, knee extension resistance training, distant hip bridge train

Sponsors & Collaborators

  • Peking University Third Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
30 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-04-06
Primary Completion
2025-11-01
Completion
2025-11-01

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07271173 on ClinicalTrials.gov