Methodological approaches to improving hip joint mobility among female students of higher educational institutions

2021 ◽  
pp. 75-81
Author(s):  
Yana V. Platonova ◽  
Valentina I. Syutina
Keyword(s):  
Hip Joint ◽  
Maximum Amplitude ◽  
Female Students ◽  
Joint Mobility ◽  
Hip Joints ◽  
Limited Mobility ◽  
Mobility Problem ◽  
Hip Diseases ◽  
The Right ◽  
Hip Flexion

Introduction. The statistics revealed during the literature analysis indicates the wide-spread of joint diseases worldwide, including hip diseases, and all human motor activity depends on the hip functioning. Limited mobility in the joint is caused by a sedentary lifestyle and the absence of movements with involved hip joint. The practice of conducting recreational aerobics classes with female students has shown the lack of girls’ proper attention to the mobility problem in the hip joints. Methods. 200 female students of 1–4 courses of Derzhavin Tambov State University, engaged in recreational aerobics, took part in the study of hip joint mobility. The study used tests to assess the degree of hip joint opening and to identify the presence of asymmetry when the legs are pulled to the sides. Results. There is a unidirectional tendency in the ability to perform motor action with the maximum amplitude of movement in the hip joints of female students of 1–4 courses. The thighs of the students open in the same way; there is no asymmetry between the right and left legs when opening. Conclusions. The study helped to draw up an overall balance and identify trends in the development of hip joint mobility in girls, to understand the causes leading to pelvic displacement and limited hip flexion amplitude, to expand the understanding of methods for assessing hip joint mobility and tests for detecting asymmetry when the legs are pulled to the sides.

Evaluation of hip joint mobility among female students of higher education institutions

2019 ◽  
pp. 42-47
Author(s):  
Yana V. PLATONOVA ◽  
Valery N. YAKOVLEV ◽  
Sergey V. SAYKIN
Keyword(s):  
Hip Joint ◽  
Female Students ◽  
Lower Limbs ◽  
Joint Mobility ◽  
State University ◽  
Hip Joints ◽  
Average Group ◽  
Motor Load ◽  
Effectiveness Of Training ◽  
Motor Actions

In this article we presented the results of the study of hip joint mobility among 1-4 year students of Derzhavin Tambov State University engaged in health aerobics and its various types. The level of development of mobility in female students' hip joints to a large extent determines the effectiveness of training in the equipment of elements in classes of health aerobics, containing a significant number of movements performed by lower limbs (grazing, wavy, squat, etc.). Hip joint refers to spherical joints and therefore allows: bending and unbending; assignment and reduction; pronation and supination; roundabout. In everyday life, the maximum degree of motor load on the hip joint occurs during walking. However, the amplitude of hip movements used in walking does not reach a potential value, and the execution of circular and lateral movements is minimized. This circumstance at classes of health aerobics with female students is clearly demonstrated by the constriction of movements and lack of proper amplitude when performing motor actions with lower limbs. The mobility of female students' hip joint was assessed by the test «Cross split». The average group values obtained by the «Cross split» test served as the basis for the development of a scale for assessing the level of mobility in hip joints.

scholarly journals The functional use of the reciprocal hip mechanism during gait for paraplegic patients walking in the Louisiana State University reciprocating gait orthosis

1999 ◽  
Vol 23 (2) ◽  
pp. 152-162 ◽  
Author(s):  
P. M. Dall ◽  
B. Müller ◽  
I. Stallard ◽  
J. Edwards ◽  
M. H. Granat
Keyword(s):  
Hip Joint ◽  
Swing Phase ◽  
Spinal Injuries ◽  
Small Contribution ◽  
State University ◽  
Hip Joints ◽  
Cable Tension ◽  
Louisiana State University ◽  
Hip Flexion ◽  
Limb Flexion

Reciprocally linked orthoses used for paraplegic walking have some form of linkage between the two hip joints. It has been assumed that flexion of the swinging leg is driven by extension of the stance leg. The aims of this study were to investigate the moments generated around the hip joint by the two cables in a Louisiana State University Reciprocating Gait Orthosis (LSU-RGO). Six (6) subjects were recruited from the Regional Spinal Injuries Centre at Southport, who were experienced RGO users. The cables were fitted with strain gauged transducers to measure cable tension. Foot switches were used to divide the gait into swing and stance phases. A minimum of 20 steps were analysed for each subject. Moments about the hip joint for each phase of gait were calculated. There were no moments generated by the front cable in 4 of the subjects. In only 2 subjects did the cable generate a moment that could assist hip flexion during the swing phase. These moments were very low and at best could only have made a small contribution to limb flexion. The back cable generated moments that clearly prevented bilateral flexion. It was concluded that the front cable, as used by these experienced RGO users, did not aid flexion of the swinging limb.

Hip Joint Control of PGO for Paraplegics

2006 ◽  
Vol 326-328 ◽  
pp. 735-738 ◽  
Author(s):  
Sung Jae Kang ◽  
Jei Cheong Ryu ◽  
Gyoo Suk Kim ◽  
Mu Seong Mun
Keyword(s):  
Hip Joint ◽  
Joint Control ◽  
Hip Joints ◽  
Driving System ◽  
Air Supply ◽  
Air Muscle ◽  
The Right ◽  
And Control ◽  
Flexion And Extension

In this study, we developed a fuzzy-logic-controlled PGO (Power Gait Othosis) that controls the flexion and extension of each PGO joint using bio-signals and an FSR sensor. The PGO driving system works to couple the right and left sides of the orthosis by specially-designed hip joints and pelvic section. This driving system consists of the orthosis, sensor, and control system. An air supply system for muscle action is composed of an air compressor, 2-way solenoid valve (MAC, USA), accumulator and pressure sensor. The role of this system is to provide constant “air muscle” with compressed air at the hip joint. With the output signal of the EMG and foot sensors, air muscles assist the flexion of the hip joint during the PGO gait.

scholarly journals Can the Open Stance Forehand Increase the Risk of Hip Injuries in Tennis Players?

2020 ◽  
Vol 8 (12) ◽  
pp. 232596712096629
Author(s):  
Caroline Martin ◽  
Anthony Sorel ◽  
Pierre Touzard ◽  
Benoit Bideau ◽  
Ronan Gaborit ◽  
...  
Keyword(s):  
Hip Joint ◽  
Inverse Dynamics ◽  
External Rotation ◽  
Tennis Players ◽  
Flexion Extension ◽  
Hip Injuries ◽  
Hip Motion ◽  
Hip Kinematics ◽  
The Right ◽  
Hip Flexion

Background: The open stance forehand has been hypothesized by tennis experts (coaches, scientists, and clinicians) to be more traumatic than the neutral stance forehand as regards hip injuries in tennis. However, the influence of the forehand stance (open or neutral) on hip kinematics and loading has not been assessed. Purpose: To compare the kinematics and kinetics at the hip joint during 3 common forehand stances (attacking neutral stance [ANS], attacking open stance [AOS], defensive open stance [DOS]) in advanced tennis players to determine whether the open stance forehand induces higher hip loading. Study Design: Descriptive laboratory study. Methods: The ANS, AOS, and DOS forehand strokes of 8 advanced right-handed tennis players were recorded with an optoelectronic motion capture system. The flexion-extension, abduction-adduction, and external-internal rotation angles as well as intersegmental forces and torques of the right hip were calculated using inverse dynamics. Results: The DOS demonstrated significantly higher values than both the ANS and AOS for anterior ( P < .001), medial ( P < .001), and distractive ( P < .001) forces as well as extension ( P = .004), abduction ( P < .001), and external rotation ( P < .001) torques. The AOS showed higher distractive forces than the ANS ( P = .048). The DOS showed more extreme angles of hip flexion ( P < .001), abduction ( P < .001), and external rotation ( P = .010). Conclusion: The findings of this study imply that the DOS increased hip joint angles and loading, thus potentially increasing the risk of hip overuse injuries. The DOS-induced hip motion could put players at a higher risk of posterior-superior hip impingement compared with the ANS and AOS. Clinical Relevance: Coaches and clinicians with players who have experienced hip pain or sustained injuries should encourage them to use a more neutral stance and develop a more aggressive playing style to avoid the DOS, during which hip motion and loading are more extreme.

scholarly journals Impacts of external rotators and the ischiofemoral ligament on preventing excessive internal hip rotation: a cadaveric study

2022 ◽  
Vol 17 (1) ◽  
Author(s):  
Kazuyoshi Baba ◽  
Daisuke Chiba ◽  
Yu Mori ◽  
Yoshiyuki Kuwahara ◽  
Atsushi Kogure ◽  
...  
Keyword(s):  
Internal Rotation ◽  
Circular Plate ◽  
Hip Joint ◽  
Joint Rotation ◽  
Rotation Direction ◽  
Obturator Externus ◽  
Obturator Internus ◽  
The Right ◽  
Hip Flexion ◽  
External Rotator

Abstract Background This study examined the biomechanics of preventing excessive internal hip joint rotation related to the hip flexion angle. Method An intramedullary nail with a circular plate equipped with a protractor was installed in the femur of nine normal hips. The circular plate was pulled by 3.15 Nm of force in the internal rotation direction. The external rotators were individually resected, finally cutting the ischiofemoral ligament. The cutting order of the external rotators differed on each side to individually determine the internal rotation resistance. The external rotators were resected from the piriformis to the obturator externus in the right hips and the reverse order in the left hips. Traction was performed after excising each muscle and ischiofemoral ligament. Measurements were taken at 0°, 30°, and 60° of hip flexion, and the differences from baseline were calculated. Results For the right hip measurements, the piriformis and ischiofemoral ligament resection significantly differed at 0° of flexion (p = 0.02), each external rotator and the ischiofemoral ligament resections significantly differed at 30° of flexion (p < 0.01), and the ischiofemoral ligament and piriformis and inferior gemellus resections significantly differed at 60° of flexion (p = 0.04 and p = 0.02, respectively). In the left hips, the ischiofemoral ligament and obturator externus, inferior gemellus, and obturator internus resections significantly differed at 0° of flexion (p < 0.01, p < 0.01, and p = 0.01, respectively), as did each external rotator and the ischiofemoral ligament resections at 30° of flexion (p < 0.01). Conclusion The ischiofemoral ligament primarily restricted the internal rotation of the hip joint. The piriformis and obturator internus may restrict internal rotation at 0° and 60° of flexion.

Pelvic Rotation Torque During Fast-Pitch Softball Hitting Under Three Ball Height Conditions

2014 ◽  
Vol 30 (4) ◽  
pp. 563-573 ◽  
Author(s):  
Yoichi Iino ◽  
Atsushi Fukushima ◽  
Takeji Kojima
Keyword(s):  
Hip Joint ◽  
Inverse Dynamics ◽  
External Rotation ◽  
Force Plate ◽  
Joint Torque ◽  
Upper Body ◽  
Hip Joints ◽  
Joint Torques ◽  
Pelvic Rotation ◽  
Hip Flexion

The purpose of this study was to investigate the relevance of hip joint angles to the production of the pelvic rotation torque in fast-pitch softball hitting and to examine the effect of ball height on this production. Thirteen advanced female softball players hit stationary balls at three different heights: high, middle, and low. The pelvic rotation torque, defined as the torque acting on the pelvis through the hip joints about the pelvic superior–inferior axis, was determined from the kinematic and force plate data using inverse dynamics. Irrespective of the ball heights, the rear hip extension, rear hip external rotation, front hip adduction, and front hip flexion torques contributed to the production of pelvic rotation torque. Although the contributions of the adduction and external rotation torques at each hip joint were significantly different among the ball heights, the contributions of the front and rear hip joint torques were similar among the three ball heights owing to cancelation of the two torque components. The timings of the peaks of the hip joint torque components were significantly different, suggesting that softball hitters may need to adjust the timings of the torque exertions fairly precisely to rotate the upper body effectively.

Hip Joint Mobility and Spinal Angles in Standing and in Different Sitting Postures

1989 ◽  
Vol 31 (2) ◽  
pp. 229-241 ◽  
Author(s):  
Robert S. Bridger ◽  
Deborah Wilkinson ◽  
Toni Van Houweninge
Keyword(s):  
Hip Joint ◽  
Exploratory Analysis ◽  
Spinal Curvature ◽  
Spinal Mobility ◽  
Joint Mobility ◽  
Sitting Posture ◽  
Flexion Extension ◽  
Hip Flexion ◽  
Male Subjects ◽  
Made In

The spinal angles of 25 female subjects were measured in standing and in four different sitting postures with various trunk-thigh angles. Additionally, measurements of hip and lumbar mobility were made in an attempt to relate mobility to spinal curvature in the different sitting postures. Lumbar curvature was observed to decrease as the trunk-thigh angle decreased across the different sitting postures, and reduction in curvature was associated with hip mobility. An exploratory analysis of interrelationships among hip mobility, spinal mobility, and spinal curvature was also carried out. A significant correlation between lumbar and thoracic angular deviations in standing and hip flexion/extension range was obtained. The findings are discussed with reference to theories of sitting posture and the influence of hip joint mobility on postural adaptations to furniture. Further investigations, including studies of male subjects, are indicated.

Legal Update: North Dakota Supreme Court: Third Edition of Guides is “Most Current”

1999 ◽  
Vol 4 (1) ◽  
pp. 6-7
Author(s):  
James J. Mangraviti
Keyword(s):  
Internal Rotation ◽  
External Rotation ◽  
Measurement Techniques ◽  
Fourth Edition ◽  
Hip Motion ◽  
The Difference ◽  
The Right ◽  
Hip Flexion ◽  
Hip Rotation ◽  
Hip Extension

Abstract The accurate measurement of hip motion is critical when one rates impairments of this joint, makes an initial diagnosis, assesses progression over time, and evaluates treatment outcome. The hip permits all motions typical of a ball-and-socket joint. The hip sacrifices some motion but gains stability and strength. Figures 52 to 54 in AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fourth Edition, illustrate techniques for measuring hip flexion, loss of extension, abduction, adduction, and external and internal rotation. Figure 53 in the AMA Guides, Fourth Edition, illustrates neutral, abducted, and adducted positions of the hip and proper alignment of the goniometer arms, and Figure 52 illustrates use of a goniometer to measure flexion of the right hip. In terms of impairment rating, hip extension (at least any beyond neutral) is irrelevant, and the AMA Guides contains no figures describing its measurement. Figure 54, Measuring Internal and External Hip Rotation, demonstrates proper positioning and measurement techniques for rotary movements of this joint. The difference between measured and actual hip rotation probably is minimal and is irrelevant for impairment rating. The normal internal rotation varies from 30° to 40°, and the external rotation ranges from 40° to 60°.

An experimental study of strongly nonlinear waves in a rotating system

1987 ◽  
Vol 177 ◽  
pp. 381-394 ◽  
Author(s):  
Dominique P. Renouard ◽  
Gabriel Chabert D'Hières ◽  
Xuizhang Zhang
Keyword(s):  
Equilibrium Shape ◽  
Scaling Law ◽  
Maximum Amplitude ◽  
Rotating Platform ◽  
Coriolis Parameter ◽  
Rotating System ◽  
Height Variation ◽  
Experimental Conditions ◽  
Strongly Nonlinear ◽  
The Right

The influence of rotation upon internal solitary waves is studied in a (10 m × 2 m × 0.6 m) channel located on the large rotating platform at Grenoble University. We observe an intumescence which moves along the right-hand side of the channel with respect to its direction of propagation. Along the side, once the intumescence reaches its equilibrium shape, the height variation of the interface with time is correctly described by the sech2 function, and the characteristic KdV scaling law linking the maximum amplitude and the wavelength along the side is fulfilled. The intumescence is a stable phenomenon which moves as a whole without deformation apart from the viscous damping. For identical experimental conditions, the amplitude of the intumescence along the side increases with increasing Coriolis parameter, and at a given period of rotation of the platform, the celerity along the side increases with increasing amplitude. But for identical conditions, we found that the celerity along the side is equal to the celerity that the wave would have for such conditions without rotation. The amplitude of the intumescence in a plane perpendicular to the wall decreases exponentially with increasing distance from the side, but the crest of the wave is curved backward.

Morphological patterns of the hip joint structure in students of choreography schools and young athletes involved in sports associated with the art of movement

2020 ◽  
Vol 15 (6) ◽  
pp. 90-93
Author(s):  
O.S. Vasiliev ◽  
◽  
S.P. Levushkin ◽  
E.E. Achkasov ◽  
◽  
...  
Keyword(s):  
Hip Joint ◽  
Young Athletes ◽  
Hip Joints ◽  
Joint Structure ◽  
Normal Limits ◽  
Rhythmic Gymnastics ◽  
Key Words Hip ◽  
Coxa Valga ◽  
Key Words Hip Dysplasia ◽  
Morphological Patterns

Students of choreography schools and young athletes involved in sports associated with the art of movement usually have dysplastic hip joints with normal acetabular coverage and femoral Coxa valga, whose normal limits require further discussion. We have identified 5 X-Ray morphological patterns of the hip joint structure typical of such individuals, and analyzed their association with professional qualities. Key words: hip dysplasia, dysplastic constitution, Coxa valga, young athletes, rhythmic gymnastics, choreography, ballet

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