Τρίτη 24 Ιουλίου 2018

P 084 - Using kinematic data for automatic detection of gait events in novice walking infants

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): C. Price, A. Martinez Santos, C. Nester



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Qualitative and quantitative comparative study of accelerometer cut-points to evaluate physical activity in children with cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A.-L. Guinet, E. Desailly



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P 110 - Lower limb muscle volume estimation from maximum cross-sectional area and muscle length in cerebral palsy and typically developing individuals

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): I. Vanmechelen, A. Shortland, J. Noble



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P 072 - Describing the influences of using insoles on gait parameters in children with increased femoral anteversion and pes-planovalgus: plot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): H. Evrendilek, N.E. Akalan, R. Sert, S. Kuchimov, G. Karaca, G. Ertürk, F. Bilgili, P. Lucareli



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P 124 - Normative data to assess the degree of normality in the cervical spine movement replacing the outdated AMA guidelines. Preliminary results

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. Fidalgo Herrera, M.J. Martínez-Beltran, A. García-González, J. de la Torre-Montero



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P 155 – Normative dataset for the sensory organization test: Do we need sport-specific reference levels for athletes?

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): F. Romano, G. Bertolini, A. Ventura, K. Mani, D. Straumann, N. Feddermann-Demont



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Association between gait mechanics and ultrasonographic measures of femoral cartilage thickness in individuals with ACL reconstruction

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Derek N. Pamukoff, Melissa M. Montgomery, Skylar Holmes, Tyler J. Moffit, Steven A. Garcia, Michael N. Vakula



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Biomechanical Evaluation of Virtual Reality-based Turning on a Self-Paced Linear Treadmill

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Keonyoung Oh, Christopher J. Stanley, Diane L. Damiano, Jonghyun Kim, Jungwon Yoon, Hyung-Soon Park

ABSTRACT
Background

Patients with brain injuries such as Parkinson’s disease or stroke exhibit abnormal gait characteristics especially during gait transitions such as step initiation and turning. Since such transitions could precipitate falls and resultant injuries, evaluation and rehabilitation of non-steady state gait in those patients are important. Whereas body weight supported treadmill training (BWSTT) provides a safe and controlled environment for gait training, it is unable to adequately train for gait transitions since the typical linear treadmill does not allow for changes in walking direction and natural fluctuations in speed.

Research question

This paper verifies if the suggested virtual reality (VR) based walking interface combined with the unidirectional treadmill can stimulate the user to initiate turning gait.

Methods

To validate whether initiation of turning was successfully achieved with the proposed walking system, we developed the VR-based walking interface combined with the self-paced treadmill and compared kinematics, kinetics, and muscle activation levels during the VR-based turning and over ground (OG) turning as well as between straight walking and turning within conditions.

Results

Despite walking on a linear treadmill, subjects showed significant increases in head rotation, pelvic rotation, right hip abduction, left hip adduction, foot progression, medial-lateral ground reaction forces, right medial hamstring activation level, and changes in step width during the VR turn compared to straight walking.

Significance

The developed VR-based turning interface can provide a safe and controlled environment for assessment of turning in healthy controls and may have a potential for assessment and training in patients with neurological disorders.



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How Does Hypermobility Affect Lower Extremity Function For Children with Increased Femoral Anteversion?

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): G. Leblebici, E. Akalan, A. Apti, S. Kuchımov, A. Kurt, K. Onerge



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P 084 - Using kinematic data for automatic detection of gait events in novice walking infants

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): C. Price, A. Martinez Santos, C. Nester



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Qualitative and quantitative comparative study of accelerometer cut-points to evaluate physical activity in children with cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A.-L. Guinet, E. Desailly



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via IFTTT

P 110 - Lower limb muscle volume estimation from maximum cross-sectional area and muscle length in cerebral palsy and typically developing individuals

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): I. Vanmechelen, A. Shortland, J. Noble



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P 072 - Describing the influences of using insoles on gait parameters in children with increased femoral anteversion and pes-planovalgus: plot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): H. Evrendilek, N.E. Akalan, R. Sert, S. Kuchimov, G. Karaca, G. Ertürk, F. Bilgili, P. Lucareli



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P 124 - Normative data to assess the degree of normality in the cervical spine movement replacing the outdated AMA guidelines. Preliminary results

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. Fidalgo Herrera, M.J. Martínez-Beltran, A. García-González, J. de la Torre-Montero



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P 155 – Normative dataset for the sensory organization test: Do we need sport-specific reference levels for athletes?

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): F. Romano, G. Bertolini, A. Ventura, K. Mani, D. Straumann, N. Feddermann-Demont



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Association between gait mechanics and ultrasonographic measures of femoral cartilage thickness in individuals with ACL reconstruction

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Derek N. Pamukoff, Melissa M. Montgomery, Skylar Holmes, Tyler J. Moffit, Steven A. Garcia, Michael N. Vakula



from #Audiology via ola Kala on Inoreader https://ift.tt/2LQcyXG
via IFTTT

Biomechanical Evaluation of Virtual Reality-based Turning on a Self-Paced Linear Treadmill

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Keonyoung Oh, Christopher J. Stanley, Diane L. Damiano, Jonghyun Kim, Jungwon Yoon, Hyung-Soon Park

ABSTRACT
Background

Patients with brain injuries such as Parkinson’s disease or stroke exhibit abnormal gait characteristics especially during gait transitions such as step initiation and turning. Since such transitions could precipitate falls and resultant injuries, evaluation and rehabilitation of non-steady state gait in those patients are important. Whereas body weight supported treadmill training (BWSTT) provides a safe and controlled environment for gait training, it is unable to adequately train for gait transitions since the typical linear treadmill does not allow for changes in walking direction and natural fluctuations in speed.

Research question

This paper verifies if the suggested virtual reality (VR) based walking interface combined with the unidirectional treadmill can stimulate the user to initiate turning gait.

Methods

To validate whether initiation of turning was successfully achieved with the proposed walking system, we developed the VR-based walking interface combined with the self-paced treadmill and compared kinematics, kinetics, and muscle activation levels during the VR-based turning and over ground (OG) turning as well as between straight walking and turning within conditions.

Results

Despite walking on a linear treadmill, subjects showed significant increases in head rotation, pelvic rotation, right hip abduction, left hip adduction, foot progression, medial-lateral ground reaction forces, right medial hamstring activation level, and changes in step width during the VR turn compared to straight walking.

Significance

The developed VR-based turning interface can provide a safe and controlled environment for assessment of turning in healthy controls and may have a potential for assessment and training in patients with neurological disorders.



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How Does Hypermobility Affect Lower Extremity Function For Children with Increased Femoral Anteversion?

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): G. Leblebici, E. Akalan, A. Apti, S. Kuchımov, A. Kurt, K. Onerge



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P 111 - Rehabilitation results in children with ataxia telengiectasia: three case reports

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): O. Cankaya, K. Seyhan, M. Kerem Günel



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P 059 – The influence of hypermobility on children with increased femoral anteversion: Static and dynamic foot pressure behavior

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): N.E. Akalan, A. Apti, A. Kurt, R. Sert, K. Onerge, G. Leblebici, S. Kuchimov, F. Bilgili, Y. Temelli, F. Miller



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P 111 - Rehabilitation results in children with ataxia telengiectasia: three case reports

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): O. Cankaya, K. Seyhan, M. Kerem Günel



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P 059 – The influence of hypermobility on children with increased femoral anteversion: Static and dynamic foot pressure behavior

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): N.E. Akalan, A. Apti, A. Kurt, R. Sert, K. Onerge, G. Leblebici, S. Kuchimov, F. Bilgili, Y. Temelli, F. Miller



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Measurement of chemosensory function.

Measurement of chemosensory function.

World J Otorhinolaryngol Head Neck Surg. 2018 Mar;4(1):11-28

Authors: Doty RL

Abstract
Although hundreds of thousands of patients seek medical help annually for disorders of taste and smell, relatively few medical practitioners quantitatively test their patients' chemosensory function, taking their complaints at face value. This is clearly not the approach paid to patients complaining of visual, hearing, or balance problems. Accurate chemosensory testing is essential to establish the nature, degree, and veracity of a patient's complaint, as well as to aid in counseling and in monitoring the effectiveness of treatment strategies and decisions. In many cases, patients perseverate on chemosensory loss that objective assessment demonstrates has resolved. In other cases, patients are malingering. Olfactory testing is critical for not only establishing the validity and degree of the chemosensory dysfunction, but for helping patients place their dysfunction into perspective relative to the function of their peer group. It is well established, for example, that olfactory dysfunction is the rule, rather than the exception, in members of the older population. Moreover, it is now apparent that such dysfunction can be an early sign of neurodegenerative diseases such as Alzheimer's and Parkinson's. Importantly, older anosmics are three times more likely to die over the course of an ensuring five-year period than their normosmic peers, a situation that may be averted in some cases by appropriate nutritional and safety counseling. This review provides the clinician, as well as the academic and industrial researcher, with an overview of the available means for accurately assessing smell and taste function, including up-to-date information and normative data for advances in this field.

PMID: 30035257 [PubMed]



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Sudden Bilateral Hearing Loss, Tinnitus, and Vertigo as Presenting Symptoms of Chronic Myeloid Leukemia.

Related Articles

Sudden Bilateral Hearing Loss, Tinnitus, and Vertigo as Presenting Symptoms of Chronic Myeloid Leukemia.

Ann Otol Rhinol Laryngol. 2018 Jul 01;:3489418787831

Authors: Cass ND, Gubbels SP, Portnuff CDF

Abstract
OBJECTIVES: The objective was to describe a unique case of sudden bilateral hearing loss, tinnitus, and vertigo presenting as the first symptoms of chronic myeloid leukemia (CML).
METHODS: A patient case is discussed along with a review of associated literature.
RESULTS: A patient presented with sudden onset hearing loss, tinnitus, and vertigo, and was diagnosed with CML with an initial white blood cell (WBC) count of 555 000 per microliter. The proposed etiology of otologic symptoms is hyperleukocytosis. Serial audiograms showed minimal improvement in hearing despite reduction of WBC.
CONCLUSION: In cases of bilateral, sudden onset sensorineural hearing loss, evaluation for systemic causes of otologic symptoms, including CML, should be considered.

PMID: 30032641 [PubMed - as supplied by publisher]



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Measurement of chemosensory function.

Measurement of chemosensory function.

World J Otorhinolaryngol Head Neck Surg. 2018 Mar;4(1):11-28

Authors: Doty RL

Abstract
Although hundreds of thousands of patients seek medical help annually for disorders of taste and smell, relatively few medical practitioners quantitatively test their patients' chemosensory function, taking their complaints at face value. This is clearly not the approach paid to patients complaining of visual, hearing, or balance problems. Accurate chemosensory testing is essential to establish the nature, degree, and veracity of a patient's complaint, as well as to aid in counseling and in monitoring the effectiveness of treatment strategies and decisions. In many cases, patients perseverate on chemosensory loss that objective assessment demonstrates has resolved. In other cases, patients are malingering. Olfactory testing is critical for not only establishing the validity and degree of the chemosensory dysfunction, but for helping patients place their dysfunction into perspective relative to the function of their peer group. It is well established, for example, that olfactory dysfunction is the rule, rather than the exception, in members of the older population. Moreover, it is now apparent that such dysfunction can be an early sign of neurodegenerative diseases such as Alzheimer's and Parkinson's. Importantly, older anosmics are three times more likely to die over the course of an ensuring five-year period than their normosmic peers, a situation that may be averted in some cases by appropriate nutritional and safety counseling. This review provides the clinician, as well as the academic and industrial researcher, with an overview of the available means for accurately assessing smell and taste function, including up-to-date information and normative data for advances in this field.

PMID: 30035257 [PubMed]



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Sudden Bilateral Hearing Loss, Tinnitus, and Vertigo as Presenting Symptoms of Chronic Myeloid Leukemia.

Related Articles

Sudden Bilateral Hearing Loss, Tinnitus, and Vertigo as Presenting Symptoms of Chronic Myeloid Leukemia.

Ann Otol Rhinol Laryngol. 2018 Jul 01;:3489418787831

Authors: Cass ND, Gubbels SP, Portnuff CDF

Abstract
OBJECTIVES: The objective was to describe a unique case of sudden bilateral hearing loss, tinnitus, and vertigo presenting as the first symptoms of chronic myeloid leukemia (CML).
METHODS: A patient case is discussed along with a review of associated literature.
RESULTS: A patient presented with sudden onset hearing loss, tinnitus, and vertigo, and was diagnosed with CML with an initial white blood cell (WBC) count of 555 000 per microliter. The proposed etiology of otologic symptoms is hyperleukocytosis. Serial audiograms showed minimal improvement in hearing despite reduction of WBC.
CONCLUSION: In cases of bilateral, sudden onset sensorineural hearing loss, evaluation for systemic causes of otologic symptoms, including CML, should be considered.

PMID: 30032641 [PubMed - as supplied by publisher]



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P 140 - Assessment of angular momentum in patients with cerebral palsy, having excessive lateral trunk Motion, during walking

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): F. Salami, B.K. Krautwurst, J. Leboucher, S.I. Wolf



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P 161 – Correlation between patient reported outcome measures and objective clinical findings in the knee arthroplasty population

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): H. De Vroey, F. Staes, I. Weygers, S. Bekteshi, E. Vereecke, H. Hallez, K. Claeys



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P 090 – Main factors affecting the arch structure of children: a follow-up study using a mixed linear model of repeated data

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Yan, B. Shi, L. Yang



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via IFTTT

P 165 - Changes in gait kinematic parameters after rehabilitation in total knee arthroplasty subjects: A prospective observational pilot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Pollet, C. Arienti, F. Bosio, B. Piovanelli, R. Buraschi, P. Pedersini, S. Negrini



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P 094 - Sit-to-stand of rheumatoid arthritis post-menopausal women vs. healthy post-menopausal – antero-posterior displacement of centre of gravity and centre of pressure

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): P. Aleixo, T. Atalaia, J. Vaz Patto, J. Abrantes



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P 117 - Improving effect of enhanced axial rehabilitation on trunk control deficit in children with cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Pierret, S. Caudron, C. Beyaert



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Reliability of the variables measured with an Android device during a modified timed up and go test in patients with Alzheimer’s Disease

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. López-Pascual, J. Hurtado Abellán, M. Inglés, G. Espí-López, P. Serra-Añó



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P 152 - Gender differences in three dimensional gait analysis data from pediatric athletes

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): I.A. Bayhan, C. Gönen Aydin



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P 142 – Plantar pressure distributions in patients with chronic obstructive pulmonary disease

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. Yıldız, E. Yildirim, O. Ozturk, I. Demirbuken, M. Ozturk, M.G. Polat



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P 169 – Biomechanical effects and quality of life when using a FES-system in subjects with neuromuscular gait disorders

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Block, C. Putz, C. Weichold, D. Heitzmann, T. Kaib, S.I. Wolf, M. Alimusaj



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P 137 - The effectiveness of dynamic sitting in sedentary workers with low back pain

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Z. Hirjakova, D. Bzdúšková, J. Kimijanová, K. Hornáček, F. Hlavačka



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Robotic-assisted locomotion training improves walking abilities in children with bilateral cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Yosra Cherni, Laurent Ballaz, Geneviève Girarin-Vignola, Mickael Begon



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P 159 - Gait in stroke patients is influenced by upper limb functioning: a quantitative analysis correlating QuickDASH with Instrumented TUG and 10MWT

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): R. Buraschi, J. Pollet, B. Alghisi, S. Beltrami, P. Pedersini, B. Piovanelli, S. Negrini



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P 158 - A method to estimate passive mechanical properties of the soleus and gastrocnemius aspects of Achilles tendon

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Yan, M. Schlippe, O. Tarassova, G.V. Pennati, A. Arndt, L. Yang, B. Shi, R. Wang



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P 093 - Comparison of three bipedal tasks to quantify contribution of proprioception to postural stability in healhty children and adolescents

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): E. Ylitalo, H. Mäenpää, H. Piitulainen



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P 109 - Changes in leg alignment after total hip replacement detected with the EOS system

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Van Drongelen, B. Fey, F. Stief, H. Kaldowski, D. Ipek, A. Meurer



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Non-linear analysis of trunk movement of Air Defense Staff: Pilot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. D’Angeles, P. Kutilek, V. Krivanek, J. Farlik, J. Hejda, P. Volf, P. Smrcka, R. Doskocil, J. Casar



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P 140 - Assessment of angular momentum in patients with cerebral palsy, having excessive lateral trunk Motion, during walking

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): F. Salami, B.K. Krautwurst, J. Leboucher, S.I. Wolf



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P 161 – Correlation between patient reported outcome measures and objective clinical findings in the knee arthroplasty population

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): H. De Vroey, F. Staes, I. Weygers, S. Bekteshi, E. Vereecke, H. Hallez, K. Claeys



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via IFTTT

P 090 – Main factors affecting the arch structure of children: a follow-up study using a mixed linear model of repeated data

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Yan, B. Shi, L. Yang



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via IFTTT

P 165 - Changes in gait kinematic parameters after rehabilitation in total knee arthroplasty subjects: A prospective observational pilot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Pollet, C. Arienti, F. Bosio, B. Piovanelli, R. Buraschi, P. Pedersini, S. Negrini



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via IFTTT

P 094 - Sit-to-stand of rheumatoid arthritis post-menopausal women vs. healthy post-menopausal – antero-posterior displacement of centre of gravity and centre of pressure

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): P. Aleixo, T. Atalaia, J. Vaz Patto, J. Abrantes



from #Audiology via ola Kala on Inoreader https://ift.tt/2NGVhjU
via IFTTT

P 117 - Improving effect of enhanced axial rehabilitation on trunk control deficit in children with cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Pierret, S. Caudron, C. Beyaert



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via IFTTT

Reliability of the variables measured with an Android device during a modified timed up and go test in patients with Alzheimer’s Disease

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. López-Pascual, J. Hurtado Abellán, M. Inglés, G. Espí-López, P. Serra-Añó



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via IFTTT

P 152 - Gender differences in three dimensional gait analysis data from pediatric athletes

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): I.A. Bayhan, C. Gönen Aydin



from #Audiology via ola Kala on Inoreader https://ift.tt/2uKHiTp
via IFTTT

P 142 – Plantar pressure distributions in patients with chronic obstructive pulmonary disease

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. Yıldız, E. Yildirim, O. Ozturk, I. Demirbuken, M. Ozturk, M.G. Polat



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via IFTTT

P 169 – Biomechanical effects and quality of life when using a FES-system in subjects with neuromuscular gait disorders

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): J. Block, C. Putz, C. Weichold, D. Heitzmann, T. Kaib, S.I. Wolf, M. Alimusaj



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via IFTTT

P 137 - The effectiveness of dynamic sitting in sedentary workers with low back pain

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Z. Hirjakova, D. Bzdúšková, J. Kimijanová, K. Hornáček, F. Hlavačka



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via IFTTT

Robotic-assisted locomotion training improves walking abilities in children with bilateral cerebral palsy

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): Yosra Cherni, Laurent Ballaz, Geneviève Girarin-Vignola, Mickael Begon



from #Audiology via ola Kala on Inoreader https://ift.tt/2LvvPQZ
via IFTTT

P 159 - Gait in stroke patients is influenced by upper limb functioning: a quantitative analysis correlating QuickDASH with Instrumented TUG and 10MWT

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): R. Buraschi, J. Pollet, B. Alghisi, S. Beltrami, P. Pedersini, B. Piovanelli, S. Negrini



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via IFTTT

P 158 - A method to estimate passive mechanical properties of the soleus and gastrocnemius aspects of Achilles tendon

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Yan, M. Schlippe, O. Tarassova, G.V. Pennati, A. Arndt, L. Yang, B. Shi, R. Wang



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P 093 - Comparison of three bipedal tasks to quantify contribution of proprioception to postural stability in healhty children and adolescents

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): E. Ylitalo, H. Mäenpää, H. Piitulainen



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P 109 - Changes in leg alignment after total hip replacement detected with the EOS system

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): S. Van Drongelen, B. Fey, F. Stief, H. Kaldowski, D. Ipek, A. Meurer



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Non-linear analysis of trunk movement of Air Defense Staff: Pilot study

Publication date: Available online 24 July 2018

Source: Gait & Posture

Author(s): A. D’Angeles, P. Kutilek, V. Krivanek, J. Farlik, J. Hejda, P. Volf, P. Smrcka, R. Doskocil, J. Casar



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Influence and benefits of foot orthoses on kinematics, kinetics and muscle activation during step descent task

Publication date: September 2018

Source: Gait & Posture, Volume 65

Author(s): Douglas Bonifácio, Jim Richards, James Selfe, Sarah Curran, Renato Trede

Abstract
Background

Medial wedged foot orthoses are frequently prescribed to reduce retropatellar stress in patients with patellofemoral pain (PFP) by controlling calcaneal eversion and internal rotation of the tibia. During activities of daily living, the highest patella loads occur during stair descent, but the effect of foot orthoses during stair descent remains unclear.

Research question

The purpose of this study was to compare the kinematics, kinetics and muscle activation during a step descent task in healthy volunteers using three designs of foot orthoses (insoles).

Methods

Sixteen healthy subjects with a mean age of 25.7 years, BMI of 23.3, and +5 Foot Posture Index were recruited. Subjects performed a step down task from 20 cm using a 5o rearfoot medial wedge (R), a 5o rearfoot and forefoot medial wedge (R/F), and a control flat insole (C).

Results

Significant improvements in control were seen in the R and R/F insoles over the C insole in the foot and at the ankle and hip kinematics. The R and R/F insoles increased the knee adduction moments, but reduced knee internal rotation moment compared to the C insole. Abductor hallucis (AH) activity was reduced with both insoles, whereas tibialis anterior (TA) activity was reduced with the R insole only.

Significance

Foot orthoses can change joint mechanics in the foot and lower limbs providing greater stability and less work done by AH and TA muscles. This data supports the use of foot orthoses to provide functional benefits during step descent, which may benefit patients with PFP.



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Influence and benefits of foot orthoses on kinematics, kinetics and muscle activation during step descent task

Publication date: September 2018

Source: Gait & Posture, Volume 65

Author(s): Douglas Bonifácio, Jim Richards, James Selfe, Sarah Curran, Renato Trede

Abstract
Background

Medial wedged foot orthoses are frequently prescribed to reduce retropatellar stress in patients with patellofemoral pain (PFP) by controlling calcaneal eversion and internal rotation of the tibia. During activities of daily living, the highest patella loads occur during stair descent, but the effect of foot orthoses during stair descent remains unclear.

Research question

The purpose of this study was to compare the kinematics, kinetics and muscle activation during a step descent task in healthy volunteers using three designs of foot orthoses (insoles).

Methods

Sixteen healthy subjects with a mean age of 25.7 years, BMI of 23.3, and +5 Foot Posture Index were recruited. Subjects performed a step down task from 20 cm using a 5o rearfoot medial wedge (R), a 5o rearfoot and forefoot medial wedge (R/F), and a control flat insole (C).

Results

Significant improvements in control were seen in the R and R/F insoles over the C insole in the foot and at the ankle and hip kinematics. The R and R/F insoles increased the knee adduction moments, but reduced knee internal rotation moment compared to the C insole. Abductor hallucis (AH) activity was reduced with both insoles, whereas tibialis anterior (TA) activity was reduced with the R insole only.

Significance

Foot orthoses can change joint mechanics in the foot and lower limbs providing greater stability and less work done by AH and TA muscles. This data supports the use of foot orthoses to provide functional benefits during step descent, which may benefit patients with PFP.



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