Earticle

초록

영어

Anterior cruciate ligament reconstruction (ACLR) leads to quadriceps neuromuscular dysfunction, including impaired force control and mus-cle degradation. Neuromuscular electrical stimulation (NMES) is widely used in rehabilitation to improve muscle mass and strength; however, its effects on neuromuscular functions and muscle quality, such as mo-tor unit (MU) behavior and force steadiness (FS), remain unclear. This study investigated the effects of NMES on neuromuscular function and muscle quality in individuals with ACLR who could walk normally. Ten male ACLR patients underwent NMES 3 times weekly for 6 weeks, with 30 contractions per session. Neuromuscular function was assessed via FS, maximum voluntary isometric contraction (MVIC), and MU behavior in the rectus femoris and vastus lateralis. Muscle quality was evaluated using muscle thickness (MT), echo intensity (EI), and ultrasound texture features. Measurements were taken at baseline and weeks 3 and 6. NMES significantly improved MVIC, FS, MU behavior, and muscle quali-ty (MT, EI, and homogeneity) on the ACLR side, with significant interac-tion effects observed. At week 3, MVIC and FS showed no significant improvement; however, structural and qualitative muscle changes were evident. NMES effectively enhanced neuromuscular function, MU be-havior, and muscle quality impaired by ACLR. However, a 3-week inter-vention may not be sufficient for optimal neuromuscular recovery, high-lighting the need for extended NMES protocols.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
Ethical approval
Participants
Experimental protocol
NMES intervention
Force
Electromyography
Ultrasound images
Statistical analysis
RESULTS
Force
MU behaviors
Muscle structure and quality
DISCUSSION
CONFLICT OF INTEREST
ACKNOWLEGMENTS
REFERENCES

키워드

저자

• Hyeon-Deok Jo [ Sports Science Research Institute, Kyungpook National University, Daegu, Korea ]
• Maeng-Kyu Kim [ Sports Science Research Institute, Kyungpook National University, Sports Medicine Lab, Department of Physical Education, Kyungpook National University, Daegu, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JER [Journal of Exercise Rehabilitation]

• 간기

  격월간

• pISSN

  2288-176X

• eISSN

  2288-1778

• 수록기간

  2013~2026

• 등재여부

  SCOPUS,KCI 등재

• 십진분류

  KDC 517 DDC 613