scholarly journals Comparison of Quadriceps Muscle Girth Using Ultrasound Imaging In Supervised vs Unsupervised Post Operative ACL Reconstruction

2020 ◽  
Vol 20 (4) ◽  
Keyword(s):  
Acl Reconstruction ◽  
Ultrasound Imaging ◽  
Quadriceps Muscle

Ultrasound imaging of the quadriceps muscle in elderly athletes and untrained men

1991 ◽  
Vol 14 (6) ◽  
pp. 527-533 ◽  
Author(s):  
Sarianna Sipila ◽  
Harri Suominen
Keyword(s):  
Ultrasound Imaging ◽  
Quadriceps Muscle ◽  
Elderly Athletes

scholarly journals Conditioning Brain Responses to Improve Quadriceps Function in an Individual With Anterior Cruciate Ligament Reconstruction

2019 ◽  
Vol 11 (4) ◽  
pp. 306-315 ◽  
Author(s):  
Chandramouli Krishnan ◽  
Edward P. Washabaugh ◽  
Aviroop Dutt-Mazumder ◽  
Scott R. Brown ◽  
Edward M. Wojtys ◽  
...  
Keyword(s):  
Acl Reconstruction ◽  
Operant Conditioning ◽  
Muscle Activation ◽  
Cruciate Ligament ◽  
Knee Extensor ◽  
Quadriceps Muscle ◽  
Corticospinal Excitability ◽  
Knee Extensor Strength ◽  
Anterior Cruciate ◽  
Quadriceps Function

Background: Persistent quadriceps weakness and activation failure are common in individuals with anterior cruciate ligament (ACL) reconstruction. A growing body of evidence indicates that this chronic quadriceps dysfunction could be partly mediated due to reduced corticospinal excitability. However, current rehabilitation approaches do not directly target corticospinal deficits, which may be critical for restoring optimal clinical outcomes after the surgery. This case study tested the feasibility of operant conditioning of torque responses evoked by transcranial magnetic stimulation (TMS) to improve quadriceps function after ACL reconstruction. Hypothesis: Operant conditioning of motor evoked torque responses would improve quadriceps strength, voluntary activation, and corticospinal excitability. Study Design: Case study and research report. Level of Evidence: Level 5. Methods: A 24-year-old male with an ACL reconstruction (6 months postsurgery) trained for 20 sessions (2-3 times per week for 8 weeks) to increase his TMS-induced motor evoked torque response (MEP torque) of the quadriceps muscles using operant conditioning principles. Knee extensor strength, voluntary quadriceps muscle activation, and quadriceps corticospinal excitability were evaluated at 3 time points: preintervention (pre), 4 weeks (mid), and immediately after the intervention (post). Results: The participant was able to successfully condition (ie, increase) the quadriceps MEP torque after 1 training session, and the conditioned MEP torque gradually increased over the course of 20 training sessions to reach about 500% of the initial value at the end of training. The participant’s control MEP torque values and corticospinal excitability, which were measured outside of the conditioning paradigm, also increased with training. These changes were paralleled by improvements in knee extensor strength and voluntary quadriceps muscle activation. Conclusion: This study shows that operant conditioning of MEP torque is a feasible approach to improving quadriceps corticospinal excitability and quadriceps function after ACL reconstruction and encourages further testing in a larger cohort of ACL-reconstructed individuals. Clinical Relevance: Operant conditioning may serve as a potential therapeutic adjuvant for ACL rehabilitation.

scholarly journals The significance of post-operative bracing in preventing knee arthrofibrosis after ACL reconstruction

2021 ◽  
Author(s):  
Valeri Akhalkatsi ◽  
Marine Matiashvili ◽  
Lela Maskhulia ◽  
George Obgaidze ◽  
Levan Chikvatia
Keyword(s):  
Acl Reconstruction ◽  
Sports Medicine ◽  
Quadriceps Muscle ◽  
High Energy ◽  
Knee Extension ◽  
Negative Influence ◽  
Knee Brace ◽  
Extension Deficit ◽  
Reconstruction Surgery ◽  
Post Operative Period

High-energy injuries of the knee joint can cause ligament damage which may have complications in 4-6% of all cases in the form of movement limitation and arthrofibrosis (5,9,14). There are several intra- and extraarticular factors that could be closely connected with formation of arthrofibrosis. One of the most important factors is the utilization of a knee brace as the means of immobilization during the post-operative period (7,8). There are various opinions on the matter of using a knee brace after an ACL reconstruction surgery. For instance, 85% of members of the American Orthopedic Society for Sports Medicine (AOSSM) support and utilize this method (6). Despite the fact that movement limitations in the affected joint are rare after the aforementioned surgical procedure, the issue of preventing and eliminating knee extension deficit during the post-operative period is still relevant. The following research is based on the evaluation of the findings in 22 patients with extension deficits 2 weeks after arthroscopic ACL reconstruction surgery and it studies the effectiveness of knee brace in eliminating extension limitation during a 3-week rehabilitation period. The results of the abovementioned research showed that utilization of knee brace in the rehabilitation process during 3 weeks is significantly effective method (P<0.008) for eliminating knee extension deficit in a way that the negative influence on the function of the quadriceps muscle of the affected limb stays negligible.

scholarly journals The Effect of NeuroMuscular Electrical Stimulation on Quadriceps Strength and Knee Function in Professional Soccer Players: Return to Sport after ACL Reconstruction

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
J. Taradaj ◽  
T. Halski ◽  
M. Kucharzewski ◽  
K. Walewicz ◽  
A. Smykla ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Acl Reconstruction ◽  
Neuromuscular Electrical Stimulation ◽  
Exercise Program ◽  
Return To Sport ◽  
Quadriceps Muscle ◽  
Quadriceps Strength ◽  
Knee Function ◽  
Soccer Players ◽  
Professional Soccer

The aim of this study was to assess the clinical efficacy and safety of NMES program applied in male soccer players (after ACL reconstruction) on the quadriceps muscle. The 80 participants (NMES = 40, control = 40) received an exercise program, including three sessions weekly. The individuals in NMES group additionally received neuromuscular electrical stimulation procedures on both right and left quadriceps (biphasic symmetric rectangular pulses, frequency of impulses: 2500 Hz, and train of pulses frequency: 50 Hz) three times daily (3 hours of break between treatments), 3 days a week, for one month. The tensometry, muscle circumference, and goniometry pendulum test (follow-up after 1 and 3 months) were applied. The results of this study show that NMES (in presented parameters in experiment) is useful for strengthening the quadriceps muscle in soccer athletes. There is an evidence of the benefit of the NMES in restoring quadriceps muscle mass and strength of soccer players. In our study the neuromuscular electrical stimulation appeared to be safe for biomechanics of knee joint. The pathological changes in knee function were not observed. This trial is registered with Australian and New Zealand Clinical Trials RegistryACTRN12613001168741.

scholarly journals Quadriceps muscle strength recovery with the use of high tone power therapy after anterior cruciate ligament reconstruction: a randomized controlled trial

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Katarzyna Ogrodzka-Ciechanowicz ◽  
Grzegorz Głąb ◽  
Jakub Ślusarski ◽  
Artur Gądek
Keyword(s):  
Randomized Controlled Trial ◽  
Muscle Strength ◽  
Acl Reconstruction ◽  
Controlled Trial ◽  
Quadriceps Muscle ◽  
Control Group ◽  
High Tone ◽  
Thigh Circumference ◽  
Randomized Controlled ◽  
Experimental Group

Abstract Background There are no scientific reports clearly describing the effectiveness of the High Tone Power Therapy in patients after ACL reconstruction. This caused that in own research an attempt was made to present the possibilities of using the selected method of electrical stimulation in the treatment of an orthopaedic patient. The aim was to assess the effectiveness of electro stimulation of the quadriceps muscle in patients after ACL reconstruction, with the use of High Tone Power Therapy. Methods In randomized controlled trial took part thirty-five men, aged 21–50, after ACL reconstruction. The tests were carried prior to and 6 months following the ACL reconstruction. After the surgery, the patients were randomly divided into experimental group (17 patients) with the High Tone Power Therapy in rehabilitation and control group (18 patients) without the High Tone Power Therapy. Patients were subjected to 6-month rehabilitation. Research tools included the measurement of muscle strength torque, ROM, knee and thigh circumference measurements, the Lysholm and the VAS scale. Results After applying HiToP, the analysis showed a statistically significant improvement of muscle torque (p = 0.041, Es = 3.71), knee circumference (p = 0.039, Es = 1.65), thigh circumference (p = 0.049, Es = 1.26), knee extension (p < 0.001, Es = 2.20) in Experimental group compared to the control group. Only the results of the VAS scale did not differ statistically significantly both within a given group and between groups. Conclusions The results confirm the hypothesis that the use of HiToP in patients after ACLr have a beneficial effect on muscle strength, reduction of joint effusion, muscle mass gain and joint function. The assumption that HiToP significantly reduces pain levels is not supported - the results in both groups are statistically insignificant. Trial registration The research project was retrospectively registered in the Australian New Zealand Clinical Trials Registry (ANZCTR). Date of first registration 11.10.2016. Registration number: ACTRN12616001416482.

scholarly journals Quadriceps Neuromuscular Impairments after Arthroscopic Knee Surgery: Comparison between Procedures

2019 ◽  
Vol 8 (11) ◽  
pp. 1881 ◽  
Author(s):  
Casartelli ◽  
Item-Glatthorn ◽  
Friesenbichler ◽  
Bizzini ◽  
Salzmann ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Acl Reconstruction ◽  
Muscle Weakness ◽  
Muscle Activation ◽  
Vastus Lateralis ◽  
Quadriceps Muscle ◽  
Knee Extension ◽  
Patient Reported ◽  
Meniscal Surgery

Quadriceps neuromuscular function remains impaired in the short- and long-term following knee arthroscopy for meniscal surgery and/or anterior cruciate ligament (ACL) reconstruction. The aim of this study was to compare quadriceps neuromuscular impairments in patients following meniscal surgery with and without ACL reconstruction. Thirty patients were tested six months after meniscal surgery with (n = 15) and without (n = 15) ACL reconstruction. We bilaterally assessed knee extension maximal voluntary contraction (MVC) torque using dynamometry, vastus lateralis thickness using ultrasound, quadriceps voluntary activation and evoked knee extension torque with transcutaneous electrical stimulation. Patient-reported outcomes were evaluated with the Knee Injury and Osteoarthritis Outcome Score (KOOS). Compared with meniscus patients, ACL patients demonstrated larger asymmetries in MVC torque (15% vs. 5%, p = 0.049) and vastus lateralis thickness (6% vs. 0%, p = 0.021). In ACL patients, asymmetries in MVC torque correlated with asymmetries in evoked torque (r = 0.622, p = 0.013). In meniscus patients, asymmetries in muscle activation correlated with KOOS quality of life (r = 0.619, p = 0.018). Patients demonstrated persistent quadriceps muscle weakness six months after ACL reconstruction, but not after isolated meniscal surgery. Quantitative and/or qualitative muscular changes likely underlie quadriceps muscle weakness in ACL patients, whereas activation failure is associated with poor quality of life in some meniscus patients.

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