ELECTROMYOGRAPHIC ANALYSIS OF THE RIGHT RECTUS FEMORIS MUSCLE DURING AN IMPOSED STRETCH AND ITS EFFECT ON THE LEFT RECTUS FEMORIS AND LEFT BICEPS FEMORIS MUSCLES

1983 ◽  
Vol 15 (2) ◽  
pp. 159
Author(s):  
T. Cody
2014 ◽  
Vol 2014 ◽  
pp. 1-3
Author(s):  
Murat Tonbul ◽  
Seyma Ozen ◽  
Ayse Tuba Tonbul

Lamellar bone formation in an abnormal location is defined as heterotopic ossification. It commonly occurs around the hip joint and most often involves the abductor muscles. It is a benign condition; however, its etiology remains largely unknown. Most previously reported cases have been due to trauma or intramuscular hemorrhage. In this paper, we present a case of bilateral heterotopic ossification of the reflected head of rectus femoris muscle without antecedent trauma or any other known cause, as the first and unique case in the literature. She was treated by excision of the right symptomatic bony mass via a modified Smith-Petersen approach. Postoperatively, she received 75 mg indomethacin daily for six weeks. She was pain-free and obtained full range of motion 3 weeks after the first intervention.


2019 ◽  
Vol 11 (2) ◽  
pp. 89-96
Author(s):  
Najme Noghani Ardestani ◽  
◽  
Rahman Sheikhhoseini ◽  
Farideh Babakhani ◽  
◽  
...  

Introduction: This study aimed to investigate the onset time and the electromyographic activity level of the selected lower limb muscles in the active and inactive old women. Materials and Methods: In this case-control study, 28 old women with a Mean±SD age of 61.07±0.88 years were selected in the inactive (15 people) and active (13 people) groups. The electrical activity of the selected muscles of the lower limbs was collected by the EMG device in a stair down movement. Results: The onset time of tibialis anterior, vastus lateralis, and biceps femoris muscles are faster in the active group (p <0.05). Besides, the activity level of the rectus femoris muscle in the interval of 100 ms before the initial contact and the ratio of the vastus medialis muscle to the biceps femoris muscle was significantly lower (p <0.05) in the active group. Conclusion: It seems that the muscles of the lower limbs in the group of women with regular physical activity are activated faster than the inactive group and the decrease in the activity of the rectus femoris muscle and the ratio of the vastus medialis to the biceps femoris muscle in the active women may be accompanied by fatigue and reduced intra-articular forces. Therefore, it is recommended that old women participate in regular and active exercise programs to improve their onset times of muscle activity.


Author(s):  
Filipe Abdalla dos Reis ◽  
Carolina Palma ◽  
Patrícia Isabel Machry Barbosa ◽  
Filipe Abdalla dos Reis ◽  
Daniel Martins Pereira

O imobilismo acomete diversos sistemas tais como o gastrointestinal, urinário, cardiovascular, respiratório, cutâneo e musculoesqueléticoe intervenções precoces são necessárias para reduzir os problemas físicos e psicológicos. Objetivo: analisar a eficácia da corrente Aussie namelhora da força muscular do quadríceps em indivíduos restritos ao leito. Métodos: Participaram do estudo 12 indivíduos, sendo 7 homens e5 mulheres, distribuídos aleatoriamente em grupo controle (GC) e grupo tratado (GT). Utilizou-se a dinamometria isométrica (handheld) paraavaliação da força e, também, o ultrassom diagnóstico para avaliar a área de secção transversa do músculo reto femoral. Todos os participantes foram avaliados em dois períodos denominados de pré e pós. Resultados: Verificou-se redução significativa de força no GC coxa direita 2,5 N (p=0,047) e esquerda 3,8 N (p=0,008) nos momentos pré e pós. O GT apresentou ganho de força não significativa na coxa direita 4,9 N (p=0,117) e esquerda 3,2 N (p=0,107). Na ultrassonografia verificou-se no GC, redução não significativa na área da coxa direita 0,04 cm (p=0,283) e significativa na esquerda 0,06 cm (p=0,037). No GT houve redução não significativa coxa direita 0,13 cm (p=0,099) e significativa esquerda 0,22 cm (p=0,002). Conclusão: Pode-se inferir que a associação entre exercícios isométricos e corrente Aussie contribuiu para aumentar a força muscular do quadríceps em indivíduos com imobilidade ao leito.Palavras-chave: Força Muscular. Resposta de Imobilidade Tônica. Músculo Quadriceps.AbstractImmobilism affects several systems such as the gastrointestinal, urinary, cardiovascular, respiratory, cutaneous and musculoskeletal and earlyinterventions are necessary to reduce physical and psychological problems. Objective: to analyze the effectiveness of the Aussie current in the improvement of quadriceps muscle strength in bed restricted individuals. Methods: Twelve individuals, 7 males and 5 females, were randomly assigned to the control group (CG) and treated group (TG). The use of isometric dynamometry (handheld) for strength evaluation and also the diagnostic ultrasound to evaluate the cross-sectional area of the rectus femoris muscle. All participants were evaluated in two periods called pre and post. Results: There was a significant reduction of strength in the right thigh in CG 2.5 N (p = 0.047) and left 3.8 N (p = 0.008) in the pre and post moments. TG presented a non-significant strength gain in the right thigh 4.9 N (p = 0.117) and left 3.2 N (p = 0.107). Ultrasonography showed no significant reduction in the right thigh area 0.04 cm (p = 0.283) and significant at the left (0.06 cm) (p = 0.037). In the TG there was no significant reduction in the right thigh 0.13 cm (p = 0.099) and significant in the left one 0.22 cm (p = 0.002). Conclusion: It can be inferred that the association between isometric exercises and current Aussie contributed to increase the muscular strength of the quadriceps in individuals with immobility to bed.Keywords: Muscle Strength. Tonic Immobility Response. Quadriceps Muscle.


2006 ◽  
Vol 86 (5) ◽  
pp. 656-671 ◽  
Author(s):  
Rafael F Escamilla ◽  
Eric Babb ◽  
Ryan DeWitt ◽  
Patrick Jew ◽  
Peter Kelleher ◽  
...  

Abstract Background and Purpose. Performing nontraditional abdominal exercises with devices such as abdominal straps, the Power Wheel, and the Ab Revolutionizer has been suggested as a way to activate abdominal and extraneous (nonabdominal) musculature as effectively as more traditional abdominal exercises, such as the crunch and bent-knee sit-up. The purpose of this study was to test the effectiveness of traditional and nontraditional abdominal exercises in activating abdominal and extraneous musculature. Subjects. Twenty-one men and women who were healthy and between 23 and 43 years of age were recruited for this study. Methods. Surface electromyography (EMG) was used to assess muscle activity from the upper and lower rectus abdominis, external and internal oblique, rectus femoris, latissimus dorsi, and lumbar paraspinal muscles while each exercise was performed. The EMG data were normalized to maximum voluntary muscle contractions. Differences in muscle activity were assessed by a 1-way, repeated-measures analysis of variance. Results. Upper and lower rectus abdominis, internal oblique, and latissimus dorsi muscle EMG activity were highest for the Power Wheel (pike, knee-up, and roll-out), hanging knee-up with straps, and reverse crunch inclined 30 degrees. External oblique muscle EMG activity was highest for the Power Wheel (pike, knee-up, and roll-out) and hanging knee-up with straps. Rectus femoris muscle EMG activity was highest for the Power Wheel (pike and knee-up), reverse crunch inclined 30 degrees, and bent-knee sit-up. Lumbar paraspinal muscle EMG activity was low and similar among exercises. Discussion and Conclusion. The Power Wheel (pike, knee-up, and roll-out), hanging knee-up with straps, and reverse crunch inclined 30 degrees not only were the most effective exercises in activating abdominal musculature but also were the most effective in activating extraneous musculature. The relatively high rectus femoris muscle activity obtained with the Power Wheel (pike and knee-up), reverse crunch inclined 30 degrees, and bent-knee sit-up may be problematic for some people with low back problems.


2016 ◽  
Vol 32 (3) ◽  
pp. 241-246
Author(s):  
Yusuke Takahashi ◽  
Kyoji Okada ◽  
Akira Saito ◽  
Isao Saito ◽  
Kazuo Kinoshita ◽  
...  

2008 ◽  
Vol 43 (5) ◽  
pp. 470-476 ◽  
Author(s):  
Jason D. Peeler ◽  
Judy E. Anderson

Abstract Context: The modified Thomas test is commonly used in the clinical setting to assess flexibility about the thigh region. Objective: To evaluate the clinical reliability of the modified Thomas test for evaluating the flexibility of the rectus femoris muscle about the knee joint. Design: Descriptive laboratory study using a test-retest design. Setting: Institution-based clinical orthopaedic setting. Patients Or Other Participants: Fifty-seven individuals between the ages of 18 and 45 years with no history of trauma participated. Of those, 54 completed the study. Intervention(s): Three Board-certified athletic therapists with an average of 12.67 years of sport medicine expertise assessed rectus femoris flexibility using pass/fail and goniometer scoring systems. A retest session was completed 7 to 10 days later. Main Outcome Measure(s): Parametric and nonparametric tests were used to compare participants' test-retest results. Results: Chance-corrected κ values (intrarater x¯  =  0.40, 95% confidence interval [CI]  =  0.30, 0.54; interrater x¯  =  0.33, 95% CI  =  0.23, 0.41) indicated generally poor levels of reliability for pass/fail scoring. Intraclass correlation coefficient (ICC) values (intrarater x¯  =  0.67, 95% CI  =  0.55, 0.76; interrater x¯  =  0.50, 95% CI  =  0.40, 0.60) indicated fair to moderate levels of reliability for goniometer data. Measurement error values (standard error of measurement  =  7°, method error  =  6°, and coefficient of variation  =  13%) and Bland-Altman plots (with 95% limits of agreement) further demonstrated the degree of intrarater variance for each examiner when conducting the test. Conclusions: These results call into question the statistical reliability of the modified Thomas test and provide clinicians with important information regarding its reliability limits when used to clinically assess flexibility of the rectus femoris muscle about the knee joint in a physically active population. More research is needed to ascertain the variables that may confound the statistical reliability of this orthopaedic technique.


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