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Edin K Suwarganda - One of the best experts on this subject based on the ideXlab platform.
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trunk pelvis and lower limb walking Biomechanics are similarly altered in those with femoroacetabular impingement syndrome regardless of cam morphology size
2021Co-Authors: Trevor N Savage, David J Saxby, Claudio Pizzolato, Laura E Diamond, Nicholas J Murphy, Michelle L Hall, Libby Spiers, Jillian P Eyles, Bryce A Killen, Edin K SuwargandaAbstract:Abstract Background Studies of walking in those with femoroacetabular impingement syndrome have found altered pelvis and hip Biomechanics. But a whole body, time-contiuous, assessment of biomechanical parameters has not been reported. Additionally, larger cam morphology has been associated with more pain, faster progression to end-stage osteoarthritis and increased cartilage damage but differences in walking Biomechanics between large compared to small cam morphologies have not been assessed. Research question Are trunk, pelvis and lower limb Biomechanics different between healthy pain-free controls and individuals with FAI syndrome and are those Biomechanics different between those with larger, compared to smaller, cam morphologies? Methods Twenty four pain-free controls were compared against 41 participants with FAI syndrome who were stratified into two groups according to their maximum alpha angle. Participants underwent three-dimensional motion capture during walking. Trunk, pelvis, and lower limb Biomechanics were compared between groups using statistical parametric mapping corrected for walking speed and pain. Results Compared to pain-free controls, participants with FAI syndrome walked with more trunk anterior tilt (mean difference 7.6°, p Significance Results do not support the hypothesis that larger cam morphology is associated with larger differences in walking Biomechanics but did demonstrate general differences in trunk, pelvis and lower limb Biomechanics between those with FAI sydrome and pain-free controls. Altered external Biomechanics are likely the result of complex sensory-motor strategy resulting from pain inhibition or impingement avoidance. Future studies should examine internal loading in those with FAI sydnrome.
Marijeanne Liederbach - One of the best experts on this subject based on the ideXlab platform.
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comparison of landing Biomechanics between male and female dancers and athletes part 1 influence of sex on risk of anterior cruciate ligament injury
2014Co-Authors: Karl F Orishimo, Marijeanne Liederbach, Ian J Kremenic, Marshall Hagins, Evangelos PappasAbstract:Background:The incidence of anterior cruciate ligament (ACL) injuries among dancers is much lower than among team sport athletes, and no clear disparity between sexes has been reported in the dance population. Although numerous studies have observed differences in landing Biomechanics of the lower extremity between male and female team sport athletes, there is currently little research examining the landing Biomechanics of male and female dancers and none comparing athletes to dancers. Comparing the landing Biomechanics within these populations may help explain the lower overall ACL injury rates and lack of sex disparity.Hypothesis:The purpose was to compare the effects of sex and group (dancer vs team sport athlete) on single-legged drop-landing Biomechanics. The primary hypothesis was that female dancers would perform a drop-landing task without demonstrating typical sex-related risk factors associated with ACL injuries. A secondary hypothesis was that female team sport athletes would display typical AC...
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comparison of landing Biomechanics between male and female professional dancers
2009Co-Authors: Karl F Orishimo, Ian J Kremenic, Marshall Hagins, Evangelos Pappas, Marijeanne LiederbachAbstract:BackgroundThe incidence of anterior cruciate ligament injuries among dancers is much lower than that among team sport athletes and no clear gender disparity has been reported in the dance population. Although numerous studies have observed differences in lower extremity landing Biomechanics between male and female athletes, there is currently little research examining the landing Biomechanics of male and female dancers. Comparing landing Biomechanics within this population may help explain the lower overall anterior cruciate ligament injury rates and the lack of gender disparity.HypothesisDue to the fact that dancers receive jump-specific and balance-specific training from a very young age, we hypothesized that there would be no gender differences in drop-landing Biomechanics in professional dancers.Study DesignControlled laboratory study.MethodsKinematics and ground-reaction forces were recorded as 33 professional modern and ballet dancers (12 men and 21 women) performed single-legged drop landings from ...
Evangelos Pappas - One of the best experts on this subject based on the ideXlab platform.
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comparison of landing Biomechanics between male and female dancers and athletes part 1 influence of sex on risk of anterior cruciate ligament injury
2014Co-Authors: Karl F Orishimo, Marijeanne Liederbach, Ian J Kremenic, Marshall Hagins, Evangelos PappasAbstract:Background:The incidence of anterior cruciate ligament (ACL) injuries among dancers is much lower than among team sport athletes, and no clear disparity between sexes has been reported in the dance population. Although numerous studies have observed differences in landing Biomechanics of the lower extremity between male and female team sport athletes, there is currently little research examining the landing Biomechanics of male and female dancers and none comparing athletes to dancers. Comparing the landing Biomechanics within these populations may help explain the lower overall ACL injury rates and lack of sex disparity.Hypothesis:The purpose was to compare the effects of sex and group (dancer vs team sport athlete) on single-legged drop-landing Biomechanics. The primary hypothesis was that female dancers would perform a drop-landing task without demonstrating typical sex-related risk factors associated with ACL injuries. A secondary hypothesis was that female team sport athletes would display typical AC...
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comparison of landing Biomechanics between male and female professional dancers
2009Co-Authors: Karl F Orishimo, Ian J Kremenic, Marshall Hagins, Evangelos Pappas, Marijeanne LiederbachAbstract:BackgroundThe incidence of anterior cruciate ligament injuries among dancers is much lower than that among team sport athletes and no clear gender disparity has been reported in the dance population. Although numerous studies have observed differences in lower extremity landing Biomechanics between male and female athletes, there is currently little research examining the landing Biomechanics of male and female dancers. Comparing landing Biomechanics within this population may help explain the lower overall anterior cruciate ligament injury rates and the lack of gender disparity.HypothesisDue to the fact that dancers receive jump-specific and balance-specific training from a very young age, we hypothesized that there would be no gender differences in drop-landing Biomechanics in professional dancers.Study DesignControlled laboratory study.MethodsKinematics and ground-reaction forces were recorded as 33 professional modern and ballet dancers (12 men and 21 women) performed single-legged drop landings from ...
Karl F Orishimo - One of the best experts on this subject based on the ideXlab platform.
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comparison of landing Biomechanics between male and female dancers and athletes part 1 influence of sex on risk of anterior cruciate ligament injury
2014Co-Authors: Karl F Orishimo, Marijeanne Liederbach, Ian J Kremenic, Marshall Hagins, Evangelos PappasAbstract:Background:The incidence of anterior cruciate ligament (ACL) injuries among dancers is much lower than among team sport athletes, and no clear disparity between sexes has been reported in the dance population. Although numerous studies have observed differences in landing Biomechanics of the lower extremity between male and female team sport athletes, there is currently little research examining the landing Biomechanics of male and female dancers and none comparing athletes to dancers. Comparing the landing Biomechanics within these populations may help explain the lower overall ACL injury rates and lack of sex disparity.Hypothesis:The purpose was to compare the effects of sex and group (dancer vs team sport athlete) on single-legged drop-landing Biomechanics. The primary hypothesis was that female dancers would perform a drop-landing task without demonstrating typical sex-related risk factors associated with ACL injuries. A secondary hypothesis was that female team sport athletes would display typical AC...
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comparison of landing Biomechanics between male and female professional dancers
2009Co-Authors: Karl F Orishimo, Ian J Kremenic, Marshall Hagins, Evangelos Pappas, Marijeanne LiederbachAbstract:BackgroundThe incidence of anterior cruciate ligament injuries among dancers is much lower than that among team sport athletes and no clear gender disparity has been reported in the dance population. Although numerous studies have observed differences in lower extremity landing Biomechanics between male and female athletes, there is currently little research examining the landing Biomechanics of male and female dancers. Comparing landing Biomechanics within this population may help explain the lower overall anterior cruciate ligament injury rates and the lack of gender disparity.HypothesisDue to the fact that dancers receive jump-specific and balance-specific training from a very young age, we hypothesized that there would be no gender differences in drop-landing Biomechanics in professional dancers.Study DesignControlled laboratory study.MethodsKinematics and ground-reaction forces were recorded as 33 professional modern and ballet dancers (12 men and 21 women) performed single-legged drop landings from ...
Alicia M Koontz - One of the best experts on this subject based on the ideXlab platform.
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relation between median and ulnar nerve function and wrist kinematics during wheelchair propulsion
2004Co-Authors: Michael L Boninger, Rory A Cooper, Bradley G Impink, Alicia M KoontzAbstract:Abstract Boninger ML, Impink BG, Cooper RA, Koontz AM. Relation between median and ulnar nerve function and wrist kinematics during wheelchair propulsion. Arch Phys Med Rehabil 2004;85:1141–5. Objective To investigate the relation between median and ulnar nerve health and wrist kinematics in wheelchair users. Design Case series. Setting Biomechanics laboratory and electrodiagnostic laboratory at a Veterans Health Administration medical center and a university hospital, respectively. Participants Thirty-five people with spinal cord injury who use manual wheelchairs. Intervention Subjects propelled their own wheelchair on a dynamometer at 0.9 and 1.8m/s. Bilateral biomechanic data were obtained by using force and moment sensing pushrims and a kinematic system. Bilateral median and ulnar nerve conduction studies were also completed. Main outcome measures Wrist flexion, extension, radial and ulnar deviation peaks, and ranges of motion (ROMs) as related to median and ulnar motor and sensory amplitudes. A secondary analysis included peak pushrim forces and moments and stroke frequency. Results There was a significant, positive correlation between flexion and extension ROM and both ulnar motor amplitude ( r =.383, P r =.361, P Conclusions Contrary to our hypothesis, subjects using a greater ROM showed better nerve function than subjects propelling with a smaller ROM. Subjects using a larger ROM used less force and fewer strokes to propel their wheelchairs at a given speed. It is possible that long, smooth strokes may benefit nerve health in manual wheelchair users.
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wheelchair pushrim kinetics body weight and median nerve function
1999Co-Authors: Michael L Boninger, Rory A Cooper, M A Baldwin, S D Shimada, Alicia M KoontzAbstract:Abstract Objectives: Individuals who use manual wheelchairs are at high risk for median nerve injury and subsequent carpal tunnel syndrome (CTS). To gain a better understanding of the mechanism behind CTS in manual wheelchair users, this study examined the relation between (1) pushrim Biomechanics and function of the median nerve, (2) pushrim Biomechanics and subject characteristics, and (3) median nerve function and subject characteristics. Design: Case series. Setting: Biomechanics laboratory and an electromyography laboratory. Participants: Thirty-four randomly recruited individuals with paraplegia who use a manual wheelchair for mobility. Intervention: Subjects propelled their own wheelchair on a dynamometer at 0.9m/sec and 1.8m/sec. Bilateral biomechanical data were obtained using a force- and moment-sensing pushrim and a motion analysis system. Bilateral nerve conduction studies focusing on the median nerve were also completed. Main Outcome Measures: Pearson's correlation coefficients between subject characteristics, median nerve conduction studies, and propulsion Biomechanics; a regression model of nerve conduction studies incorporating subject characteristics and pushrim Biomechanics. Results: Subject weight was significantly related to median nerve latency ( r = .36, p = .03) and median sensory amplitude ( r = −.43, p = .01). Height was also significantly related to median sensory amplitude ( r = −.58, p = .01). Subject weight was significantly related to the peak resultant force applied to the pushrim ( r = .59, p r = .63, p r = .54, p Conclusion: This study found subject weight to be related to pushrim forces and median nerve function. Independent of subject weight, pushrim Biomechanics were also related to median nerve function. Through weight loss and changes in pushrim Biomechanics, it may be possible to prevent median nerve injury in manual wheelchair users.
