Effect of hip flexion angle on stiffness of the adductor longus muscle during isometric hip flexion

A football player was diagnosed with myositis ossificans of his right adductor longus muscle after an acute injury. Conservative treatment failed and 1 year after the initial trauma the patient underwent surgical excision of a large ossification. Seven months postoperatively, the patient was fully recovered and returned to his preinjury activity levels. We present our approach to this case and discuss our considerations, referring to background information about this rare disease.

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Age and Gender Effects on Lower Extremity Kinematics of Youth Soccer Players in a Stop-Jump Task

The American Journal of Sports Medicine ◽

10.1177/0363546504273049 ◽

2005 ◽

Vol 33 (9) ◽

pp. 1356-1364 ◽

Cited By ~ 80

Author(s):

Bing Yu ◽

Scott B. McClure ◽

James A. Onate ◽

Kevin M. Guskiewicz ◽

Donald T. Kirkendall ◽

...

Keyword(s):

Gender Differences ◽

Lower Extremity ◽

Cruciate Ligament ◽

Flexion Angle ◽

Soccer Players ◽

Motion Patterns ◽

Youth Soccer ◽

Anterior Cruciate Ligament Injuries ◽

Anterior Cruciate ◽

Hip Flexion

Background Gender differences in lower extremity motion patterns were previously identified as a possible risk factor for non-contact anterior cruciate ligament injuries in sports. Hypothesis Gender differences in lower extremity kinematics in the stop-jump task are functions of age for youth soccer players between 11 and 16 years of age. Study Design Descriptive laboratory study. Methods Three-dimensional videographic data were collected for 30 male and 30 female adolescent soccer players between 11 and 16 years of age performing a stop-jump task. The age effects on hip and knee joint angular motions were compared between genders using multiple regression analyses with dummy variables. Results Gender and age have significant interaction effects on standing height (P = .00), body mass (P = .00), knee flexion angle at initial foot contact with the ground (P = .00), maximum knee flexion angle (P = .00), knee valgus-varus angle (P = .00), knee valgus-varus motion (P = .00), and hip flexion angle at initial foot contact with the ground (P = .00). Conclusion Youth female recreational soccer players have decreased knee and hip flexion angles at initial ground contact and decreased knee and hip flexion motions during the landing of the stop-jump task compared to those of their male counterparts. These gender differences in knee and hip flexion motion patterns of youth recreational soccer players occur after 12 years of age and increase with age before 16 years. Clinical Relevance The results of this study provide significant information for research on the prevention of noncontact anterior cruciate ligament injuries.

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Isolated Traumatic Rupture of the Adductor Longus Muscle of the Thigh

Clinical Orthopaedics and Related Research ◽

10.1097/00003086-197210000-00011 ◽

1972 ◽

Vol 88 ◽

pp. 64-66 ◽

Cited By ~ 21

Author(s):

Pan P. Symeonides

Keyword(s):

Traumatic Rupture ◽

Longus Muscle ◽

Adductor Longus

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The Influence of Sagittal Plane Hip Position on Lower-Extremity Muscle Activity and Torque Output

Journal of Sport Rehabilitation ◽

10.1123/jsr.2020-0268 ◽

2020 ◽

pp. 1-9

Author(s):

Neal R. Glaviano ◽

David M. Bazett-Jones

Keyword(s):

Muscle Activity ◽

Sagittal Plane ◽

External Rotation ◽

Gluteus Maximus ◽

Muscle Testing ◽

Lower Extremity Muscle ◽

Hip Muscle ◽

Hip Flexion ◽

Hip Extension ◽

Adductor Longus

Context: Hip muscle strength has previously been evaluated in various sagittal plane testing positions. Altering the testing position appears to have an influence on hip muscle torque during hip extension, abduction, and external rotation. However, it is unknown how altering the testing position influences hip muscle activity during these commonly performed assessments. Objectives: To evaluate how hip sagittal plane position influences hip muscle activation and torque output. Study Design: Cross-sectional. Setting: Laboratory. Patients or Other Participants: A total of 22 healthy females (age = 22.1 [1.4] y; mass = 63.4 [11.3] kg; height = 168.4 [6.2] cm) were recruited. Intervention: None. Main Outcome Measures: Participants completed isometric contractions with surface electromyography on the superior and inferior gluteus maximus; anterior, middle, and posterior gluteus medius; biceps femoris, semitendinosus, adductor longus, and tensor fascia latae. Extension and external rotation were tested in 0°, 45°, and 90° of hip flexion and abduction was tested in −5°, 0°, and 45° of hip flexion. Repeated-measures analysis of variances were used for statistical analysis (P ≤ .01). Results: Activation of gluteal (P < .007), semitendinosus (P = .002), and adductor longus (P = .001) muscles were lesser for extension at 90° versus less flexed positions. Adductor longus activity was greatest during 90° of hip flexion for external rotation torque testing (P < .001). Tensor fascia latae (P < .001) and gluteus maximus (P < .001) activities were greater in 45° of hip flexion. Significant differences in extension (P < .001) and abduction (P < .001) torque were found among positions. Conclusions: Position when assessing hip extension and abduction torque has an influence on both muscle activity and torque output but only muscle activity for hip external rotation torque. Clinicians should be aware of the influence of position on hip extension, abduction, and external rotation muscle testing and select a position most in line with their clinical goals.

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Effect of Hip Flexion Angle on the Hamstring to Quadriceps Strength Ratio

Sports ◽

10.3390/sports7020043 ◽

2019 ◽

Vol 7 (2) ◽

pp. 43

Author(s):

Eleftherios Kellis ◽

Athanasios Ellinoudis ◽

and Nikolaos Kofotolis

Keyword(s):

Muscle Activation ◽

Rectus Femoris ◽

Biceps Femoris ◽

Knee Extension ◽

Quadriceps Strength ◽

Flexion Angle ◽

Electromyographic Activity ◽

H:Q Ratio ◽

Hip Flexion ◽

Selection Of

The purpose of this study was to compare the hamstring to quadriceps ratio (H:Q) obtained from three different hip flexion angles. Seventy-three young athletes performed maximum isokinetic concentric and eccentric knee extension and flexion efforts at 60 °·s−1 and 240 °·s−1 from hip flexion angles of 90°, 60°, and 120°. The conventional (concentric to concentric), functional (eccentric to concentric) and mixed (eccentric at 30 °·s−1 to concentric torque at 240 °·s−1) H: Q torque ratios and the electromyographic activity from the rectus femoris and biceps femoris were analyzed. The conventional H:Q ratios and the functional H:Q ratios at 60 °·s−1 did not significantly differ between the three testing positions (p > 0.05). In contrast, testing from the 90° hip flexion angle showed a greater functional torque ratio at 240 °·s−1 and a mixed H:Q torque ratio compared with the other two positions (p < 0.05). The hip flexion angle did not influence the recorded muscle activation signals (p > 0.05). For the range of hip flexion angles tested, routine isokinetic assessment of conventional H:Q ratio and functional H:Q ratio at slow speed is not angle-dependent. Should assessment of the functional H:Q ratio at fast angular velocity or the mixed ratio is required, then selection of hip flexion angle is important.

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Effects of Spaceflight in the Adductor Longus Muscle of Rats Flown in the Soviet Biosatellite COSMOS 2044. A Study Employing Neural Cell Adhesion Molecule (N-CAM) Immunocytochemistry and Conventional Morphological Techniques (Light and Electron Microscopy)

Journal of Neuropathology & Experimental Neurology ◽

10.1097/00005072-199207000-00004 ◽

1992 ◽

Vol 51 (4) ◽

pp. 415-431 ◽

Cited By ~ 26

Author(s):

Fernando Dʼamelio ◽

Nancy G. Daunton

Keyword(s):

Electron Microscopy ◽

Cell Adhesion ◽

Adhesion Molecule ◽

Cell Adhesion Molecule ◽

Neural Cell Adhesion Molecule ◽

Light And Electron Microscopy ◽

Neural Cell ◽

Longus Muscle ◽

Neural Cell Adhesion ◽

Adductor Longus

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The E point: a new echographic great saphenous identification sign in specific anatomical variants and applications

Phlebology The Journal of Venous Disease ◽

10.1177/0268355516633381 ◽

2016 ◽

Vol 32 (2) ◽

pp. 120-124

Author(s):

Stefano Ricci ◽

Leo Moro ◽

Alessandro Ferrini ◽

Isaura Rossi Bartoli ◽

Raffaele Antonelli Incalzi

Keyword(s):

Saphenous Vein ◽

Chronic Venous Insufficiency ◽

Venous Insufficiency ◽

Great Saphenous Vein ◽

Training Population ◽

Anatomical Variants ◽

Longus Muscle ◽

Adductor Longus

Objective To describe a new ultrasound marker of the Great Saphenous Vein at the groin. Method An ultrasound marker of the Great Saphenous Vein was identified as follows: the Great Saphenous Vein was tracked in cross-sectionally starting from the Sapheno Femoral Junction and optimally visualized where it crosses the Adductor Longus muscle, i.e., 3–5 cm below the junction. This marker, corresponding to a very superficial position of Great Saphenous Vein, was named “E Point,” where E means easy to find. The search for the E point was performed on 230 limbs of 126 subjects with or without chronic venous insufficiency (training population) and the method was validated in 58 subjects (testing population). Results The E point was successfully recorded in 128/144 (89%) pathologic and in 85/86 (99%) healthy limbs. Being free from other structures, at the E point the Great Saphenous Vein was always easily calibrated. In 17 cases, the E point could not be identified due to an hypoplasic Great Saphenous Vein; in such instances, the Anterior Accessory Saphenous Vein was well evident and substituted for the Great Saphenous Vein as the main draining vein at the groin. Conclusion The E point identifies the Great Saphenous Vein in healthy and varicose patients. Failure to identify the E point indicates Anterior Accessory Saphenous Vein dominance over a hypoplasic Great Saphenous Vein.

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