Publication date: Available online 20 September 2018
Source: Revista de Logopedia, Foniatría y Audiología
Author(s): Juan Jorge Muntaner Guasp
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Παρασκευή 21 Σεπτεμβρίου 2018
Consideraciones para la intervención de los apoyos de la comunicación y el lenguaje en la escuela inclusiva
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Consideraciones para la intervención de los apoyos de la comunicación y el lenguaje en la escuela inclusiva
Publication date: Available online 20 September 2018
Source: Revista de Logopedia, Foniatría y Audiología
Author(s): Juan Jorge Muntaner Guasp
from #Audiology via ola Kala on Inoreader https://ift.tt/2Dia58t
via IFTTT
Perceptual Organization of Interrupted Speech and Text
Purpose
Visual recognition of interrupted text may predict speech intelligibility under adverse listening conditions. This study investigated the nature of the linguistic information and perceptual processes underlying this relationship.
Method
To directly compare the perceptual organization of interrupted speech and text, we examined the recognition of spoken and printed sentences interrupted at different rates in 14 adults with normal hearing. The interruption method approximated deletion and retention of rate-specific linguistic information (0.5–64 Hz) in speech by substituting either white space or silent intervals for text or speech in the original sentences.
Results
A similar U-shaped pattern of cross-rate variation in performance was observed in both modalities, with minima at 2 Hz. However, at the highest and lowest interruption rates, recognition accuracy was greater for text than speech, whereas the reverse was observed at middle rates. An analysis of word duration and the frequency of word sampling across interruption rates suggested that the location of the function minima was influenced by perceptual reconstruction of whole words. Overall, the findings indicate a high degree of similarity in the perceptual organization of interrupted speech and text.
Conclusion
The observed rate-specific variation in the perception of speech and text may potentially affect the degree to which recognition accuracy in one modality is predictive of the other.from #Audiology via ola Kala on Inoreader https://ift.tt/2NZWd6J
via IFTTT
Perceptual Organization of Interrupted Speech and Text
Purpose
Visual recognition of interrupted text may predict speech intelligibility under adverse listening conditions. This study investigated the nature of the linguistic information and perceptual processes underlying this relationship.
Method
To directly compare the perceptual organization of interrupted speech and text, we examined the recognition of spoken and printed sentences interrupted at different rates in 14 adults with normal hearing. The interruption method approximated deletion and retention of rate-specific linguistic information (0.5–64 Hz) in speech by substituting either white space or silent intervals for text or speech in the original sentences.
Results
A similar U-shaped pattern of cross-rate variation in performance was observed in both modalities, with minima at 2 Hz. However, at the highest and lowest interruption rates, recognition accuracy was greater for text than speech, whereas the reverse was observed at middle rates. An analysis of word duration and the frequency of word sampling across interruption rates suggested that the location of the function minima was influenced by perceptual reconstruction of whole words. Overall, the findings indicate a high degree of similarity in the perceptual organization of interrupted speech and text.
Conclusion
The observed rate-specific variation in the perception of speech and text may potentially affect the degree to which recognition accuracy in one modality is predictive of the other.from #Audiology via ola Kala on Inoreader https://ift.tt/2NZWd6J
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O 089 - A soft robotic exosuit assisting the paretic ankle in patients post-stroke: Effect on muscle activation during overground walking
Publication date: Available online 26 June 2018
Source: Gait & Posture
Author(s): L. Sloot, J. Bae, L. Baker, K. O’Donnell, N. Menard, F. Porciuncula, D. Choe, T. Ellis, L. Awad, C. Walsh
Abstract
This study compared overground walking with and without exosuit assistance in post-stroke patients. Exosuit-assisted walking was found to improve paretic propulsion and ground clearance during swing, two common gait deviations in stroke patients. No changes in leg muscle activity was found, motivating further study of the exosuit as a tool for gait training during stroke rehabilitation.
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Upper body accelerations as a biomarker of gait impairment in the early stages of Parkinson’s disease
Publication date: Available online 25 June 2018
Source: Gait & Posture
Author(s): Christopher Buckley, Brook Galna, Lynn Rochester, Claudia Mazzà
Abstract
Background
Changes in upper body (UB) motion during gait may be a marker of incipient pathology, intervention response and disease progression in Parkinson’s disease (PD), which if independent from the lower body motion, might provide an improved assessment of gait.
Research question
This study aimed to test this hypothesis and establish whether variables calculated from accelerations measured on the UB are unique from spatiotemporal characteristics and can contribute to an improved classification of PD gait.
Methods
Data was obtained from 70 people with PD (69.2 ± 9.9 y.o., UPDRS III: 36.9 ± 12.3) and 64 age-matched controls (71.6 ± 6.8 y.o.). Spatiotemporal characteristics were measured using a pressure sensitive mat (GAITRite). Head and pelvis accelerations were synchronously measured with wearable inertial sensors (Opal, APDM). Pearson’s product-moment correlations were calculated between 49 selected variables from UB accelerations (representing magnitude, smoothness, regularity, symmetry and attenuation) and 16 traditional spatiotemporal characteristics (representing pace, variability, rhythm, asymmetry and postural control). Univariate and multivariate regression analysis was used to test the variables ability to classify PD gait.
Results
The variables were mostly unique from each other (67% of variables recorded an r < 0.3). Univariate and multivariate analysis showed that UB variables were moderately better at classifying PD gait than the spatiotemporal characteristics (Univariate: 0.70 to 0.81, Multivariate: 0.88 to 0.91 AUC).
Significance
This study showed for the first time that, if aiming at objective and optimal sensitive biomarkers for PD, UB variables should be measured in conjunction with spatiotemporal characteristics to obtain a more holistic assessment of PD gait for use in a clinical or free-living environment.
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ACL reconstructed individuals do not demonstrate deficits in postural control as measured by single-leg balance
Publication date: Available online 20 June 2018
Source: Gait & Posture
Author(s): Stephan G. Bodkin, Lindsay V. Slater, Grant E. Norte, John Goetschius, Joseph M. Hart
Abstract
Background
Following anterior cruciate ligament reconstruction (ACLR), patients undergo a battery of performance assessments to determine progression of return to sport activity. Rates of reinjury following ACLR are high, indicating that current assessments may not accurately identify deficits at the time point of return to sport progression.
Research question
To assess single-leg postural control in ACLR patients around the time point of return to sport progression and their relationships to subjective function.
Study design
Descriptive Laboratory Study.
Methods
198 individuals (108 ACLR, 90 healthy) participated. All ACLR participants were at the time point of return to play progression. Postural stability was quantified by center of pressure (COP) average velocity measured through a straight-knee single-leg balance assessment for 10-seconds with the participant’s eyes closed. Subjective knee function was measured from the International Knee Documentation Committee (IKDC) Subjective Knee Form and the Knee Osteoarthritis Outcome Score (KOOS) subscales.
Results
No significant differences existed between COP average velocity between limbs (uninvolved, involved) or groups (ACLR, Healthy). As a secondary aim, no significant relationships existed between measures of subjective knee function and postural stability.
Significance
Individuals following ACLR demonstrate similar patterns of postural stability as healthy individuals in a straight knee single leg balance task. Single-leg balance in a straight knee position may not be sensitive enough to detect impairments and does not predict subjective function in ACLR patients at the time of return to sport progression.
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The association of bradykinesia and balance control in patients with Alzheimer’s disease?
Publication date: Available online 31 July 2017
Source: Gait & Posture
Author(s): Halil Onder
from #Audiology via ola Kala on Inoreader https://ift.tt/2OJAnle
via IFTTT
Postural control during single leg stance in slackliners and controls
Publication date: Available online 10 July 2017
Source: Gait & Posture
Author(s): Miroslav Janura, Lucia Bizovska, Zdenek Svoboda
from #Audiology via ola Kala on Inoreader https://ift.tt/2xqB78c
via IFTTT
Low back pain development differentially influences centre of pressure regularity following prolonged standing
Publication date: Available online 27 June 2017
Source: Gait & Posture
Author(s): Kayla M. Fewster, Kaitlin M. Gallagher, Samuel H. Howarth, Jack P. Callaghan
Abstract
Occupations requiring prolonged periods of static standing are associated with the development of low back pain (LBP). Certain individuals are susceptible to LBP development during prolonged standing (pain developers, PDs) while others are not (non-pain developers, NPDs). Linear centre of pressure (COP) measures suggest that standing balance control is negatively influenced following prolonged standing, and that PDs and NPDs may be differentially affected. The objective of this study was to determine if nonlinear standing balance control, quantified on COP, using sample entropy, is altered after 2-h of standing. Thirty two participants stood for 2-h. Separate 2-min standing trials, performed with eyes open and eyes closed, were collected before and after the 2-h standing protocol. Sample entropy, median power frequency and RMS amplitude of the COP time-series, was calculated from the 2-min standing trials for all participants. For comparison, participants were classified, post hoc, as PDs or NPDs according to visual analog scale pain scores. Sample entropy decreased after 2-h of standing for both PDs and NPDs, however, the decrease for NPDs was only 21% of the decrease observed in PDs. This study demonstrated that nonlinear control of upright standing changes after 2- hours of standing, resulting in an increase in COP regularity post 2- hours of standing for both PDs and NPDs. PDs displayed a greater change in COP regularity, which is supported by the theory that increased COP regularity occurs with pain/pathology
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A protective effect in females with alkaptonuria: Relationships between gait deviations and ochronosis
Publication date: Available online 5 September 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2poL7dQ
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EMG matching for muscle modelling
Publication date: Available online 3 September 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2MSuhgz
via IFTTT
Relationship between co-contraction ratio and knee adduction moment in knee osteoarthritis subjects
Publication date: Available online 31 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2prc6W7
via IFTTT
Implant loading during walking with and without support of a single crutch in patients with bone-anchored unilateral transfemoral amputation prostheses – Analyses using iPecs instrument
Publication date: Available online 12 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2OHOnMp
via IFTTT
Health-related quality of life and satisfaction with orthoses in an ambulatory group of children with arthrogryposis
Publication date: Available online 9 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2pucfrW
via IFTTT
O 089 - A soft robotic exosuit assisting the paretic ankle in patients post-stroke: Effect on muscle activation during overground walking
Publication date: Available online 26 June 2018
Source: Gait & Posture
Author(s): L. Sloot, J. Bae, L. Baker, K. O’Donnell, N. Menard, F. Porciuncula, D. Choe, T. Ellis, L. Awad, C. Walsh
Abstract
This study compared overground walking with and without exosuit assistance in post-stroke patients. Exosuit-assisted walking was found to improve paretic propulsion and ground clearance during swing, two common gait deviations in stroke patients. No changes in leg muscle activity was found, motivating further study of the exosuit as a tool for gait training during stroke rehabilitation.
from #Audiology via ola Kala on Inoreader https://ift.tt/2xxyqBP
via IFTTT
Upper body accelerations as a biomarker of gait impairment in the early stages of Parkinson’s disease
Publication date: Available online 25 June 2018
Source: Gait & Posture
Author(s): Christopher Buckley, Brook Galna, Lynn Rochester, Claudia Mazzà
Abstract
Background
Changes in upper body (UB) motion during gait may be a marker of incipient pathology, intervention response and disease progression in Parkinson’s disease (PD), which if independent from the lower body motion, might provide an improved assessment of gait.
Research question
This study aimed to test this hypothesis and establish whether variables calculated from accelerations measured on the UB are unique from spatiotemporal characteristics and can contribute to an improved classification of PD gait.
Methods
Data was obtained from 70 people with PD (69.2 ± 9.9 y.o., UPDRS III: 36.9 ± 12.3) and 64 age-matched controls (71.6 ± 6.8 y.o.). Spatiotemporal characteristics were measured using a pressure sensitive mat (GAITRite). Head and pelvis accelerations were synchronously measured with wearable inertial sensors (Opal, APDM). Pearson’s product-moment correlations were calculated between 49 selected variables from UB accelerations (representing magnitude, smoothness, regularity, symmetry and attenuation) and 16 traditional spatiotemporal characteristics (representing pace, variability, rhythm, asymmetry and postural control). Univariate and multivariate regression analysis was used to test the variables ability to classify PD gait.
Results
The variables were mostly unique from each other (67% of variables recorded an r < 0.3). Univariate and multivariate analysis showed that UB variables were moderately better at classifying PD gait than the spatiotemporal characteristics (Univariate: 0.70 to 0.81, Multivariate: 0.88 to 0.91 AUC).
Significance
This study showed for the first time that, if aiming at objective and optimal sensitive biomarkers for PD, UB variables should be measured in conjunction with spatiotemporal characteristics to obtain a more holistic assessment of PD gait for use in a clinical or free-living environment.
from #Audiology via ola Kala on Inoreader https://ift.tt/2MSJbTW
via IFTTT
ACL reconstructed individuals do not demonstrate deficits in postural control as measured by single-leg balance
Publication date: Available online 20 June 2018
Source: Gait & Posture
Author(s): Stephan G. Bodkin, Lindsay V. Slater, Grant E. Norte, John Goetschius, Joseph M. Hart
Abstract
Background
Following anterior cruciate ligament reconstruction (ACLR), patients undergo a battery of performance assessments to determine progression of return to sport activity. Rates of reinjury following ACLR are high, indicating that current assessments may not accurately identify deficits at the time point of return to sport progression.
Research question
To assess single-leg postural control in ACLR patients around the time point of return to sport progression and their relationships to subjective function.
Study design
Descriptive Laboratory Study.
Methods
198 individuals (108 ACLR, 90 healthy) participated. All ACLR participants were at the time point of return to play progression. Postural stability was quantified by center of pressure (COP) average velocity measured through a straight-knee single-leg balance assessment for 10-seconds with the participant’s eyes closed. Subjective knee function was measured from the International Knee Documentation Committee (IKDC) Subjective Knee Form and the Knee Osteoarthritis Outcome Score (KOOS) subscales.
Results
No significant differences existed between COP average velocity between limbs (uninvolved, involved) or groups (ACLR, Healthy). As a secondary aim, no significant relationships existed between measures of subjective knee function and postural stability.
Significance
Individuals following ACLR demonstrate similar patterns of postural stability as healthy individuals in a straight knee single leg balance task. Single-leg balance in a straight knee position may not be sensitive enough to detect impairments and does not predict subjective function in ACLR patients at the time of return to sport progression.
from #Audiology via ola Kala on Inoreader https://ift.tt/2poLbKC
via IFTTT
The association of bradykinesia and balance control in patients with Alzheimer’s disease?
Publication date: Available online 31 July 2017
Source: Gait & Posture
Author(s): Halil Onder
from #Audiology via ola Kala on Inoreader https://ift.tt/2OJAnle
via IFTTT
Postural control during single leg stance in slackliners and controls
Publication date: Available online 10 July 2017
Source: Gait & Posture
Author(s): Miroslav Janura, Lucia Bizovska, Zdenek Svoboda
from #Audiology via ola Kala on Inoreader https://ift.tt/2xqB78c
via IFTTT
Low back pain development differentially influences centre of pressure regularity following prolonged standing
Publication date: Available online 27 June 2017
Source: Gait & Posture
Author(s): Kayla M. Fewster, Kaitlin M. Gallagher, Samuel H. Howarth, Jack P. Callaghan
Abstract
Occupations requiring prolonged periods of static standing are associated with the development of low back pain (LBP). Certain individuals are susceptible to LBP development during prolonged standing (pain developers, PDs) while others are not (non-pain developers, NPDs). Linear centre of pressure (COP) measures suggest that standing balance control is negatively influenced following prolonged standing, and that PDs and NPDs may be differentially affected. The objective of this study was to determine if nonlinear standing balance control, quantified on COP, using sample entropy, is altered after 2-h of standing. Thirty two participants stood for 2-h. Separate 2-min standing trials, performed with eyes open and eyes closed, were collected before and after the 2-h standing protocol. Sample entropy, median power frequency and RMS amplitude of the COP time-series, was calculated from the 2-min standing trials for all participants. For comparison, participants were classified, post hoc, as PDs or NPDs according to visual analog scale pain scores. Sample entropy decreased after 2-h of standing for both PDs and NPDs, however, the decrease for NPDs was only 21% of the decrease observed in PDs. This study demonstrated that nonlinear control of upright standing changes after 2- hours of standing, resulting in an increase in COP regularity post 2- hours of standing for both PDs and NPDs. PDs displayed a greater change in COP regularity, which is supported by the theory that increased COP regularity occurs with pain/pathology
from #Audiology via ola Kala on Inoreader https://ift.tt/2OIwFZd
via IFTTT
A protective effect in females with alkaptonuria: Relationships between gait deviations and ochronosis
Publication date: Available online 5 September 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2poL7dQ
via IFTTT
EMG matching for muscle modelling
Publication date: Available online 3 September 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2MSuhgz
via IFTTT
Relationship between co-contraction ratio and knee adduction moment in knee osteoarthritis subjects
Publication date: Available online 31 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2prc6W7
via IFTTT
Implant loading during walking with and without support of a single crutch in patients with bone-anchored unilateral transfemoral amputation prostheses – Analyses using iPecs instrument
Publication date: Available online 12 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2OHOnMp
via IFTTT
Health-related quality of life and satisfaction with orthoses in an ambulatory group of children with arthrogryposis
Publication date: Available online 9 August 2016
Source: Gait & Posture
Author(s):
from #Audiology via ola Kala on Inoreader https://ift.tt/2pucfrW
via IFTTT
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