What's New for the Cochlear Nucleus 7 System

One year after launching the Nucleus 7 Sound Processor, Cochlear has expanded the features available to recipients. Clinicians working with this device will learn about these new features in order to serve their current patient population; and counsel candidates considering cochlear implantation.

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What's New for the Cochlear Nucleus 7 System

One year after launching the Nucleus 7 Sound Processor, Cochlear has expanded the features available to recipients. Clinicians working with this device will learn about these new features in order to serve their current patient population; and counsel candidates considering cochlear implantation.

from #Audiology via ola Kala on Inoreader https://ift.tt/2NbdfP3
via IFTTT

Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

Publication date: Available online 2 September 2018

Source: Gait & Posture

Author(s): Tobias Weber, Sauro E. Salomoni, Dorothée Debuse, François Hug, Nick Caplan, Enrico De Martino, Jonathan Scott, Julie Hides, Paul Hodges

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Does the single-limb stance reflect chronic ankle instability in an athlete?

Publication date: Available online 2 September 2018

Source: Gait & Posture

Author(s): Takeshi Toyooka, Yukio Urabe, Shiro Sugiura, Akito Takata, Masanori Shinozaki, Yuka Takata, Tohru Ishizaki, Keita Nakamura, Kazumi Otsuki, Takato Oyama, Satoru Nishikawa

Abstract

Background

The single-limb stance with closed eyes has been widely used to evaluate chronic ankle instability as static balance; however, there was lack of consideration of whether difference in age, frequency of previous ankle sprain or physical ability influenced single-limb stance.

Research question

We hypothesized that the single-limb stance might not reflect subjective ankle instability and function on physical activity in people who perform sports activities.

Methods

In total, 102 high school basketball players were recruited to evaluate their physical performance at the beginning of the season. Participants were divided into five groups based on the frequency of previous ankle sprain. Karlsson ankle function score (K score) was considered as a subjective ankle function score, that was divided into various components. Each component and the single-limb stance test with center of pressure (COP) analysis was observed between the frequency of ankle sprains with one-way ANOVA and compared using Spearman’s rank correlation coefficient to verify the relationship between the K score and COP.

Results

For COP parameters, no difference was observed in the history of ankle sprains. The K score was lower in participants with three previous ankle sprains than in those with a different number of ankle sprains for instability, stiffness, running, work activities, support, and total K score for all parameters. There were weak negative correlations (r = -0.19~-0.35) between K score and COP parameters among participants with no history of ankle sprain or only once. In contrast, there were strong positive correlations (r = 0.69~0.87) among history of ankle sprain at third.

Significance

The single-limb stance might not accurately reflect an athlete’s ankle instability and function on physical activity. Clinically, therapists should choose suitable evaluation tools depending on the athlete’s activity level to check for chronic ankle instability.

from #Audiology via ola Kala on Inoreader https://ift.tt/2NL4mZp
via IFTTT

Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

Publication date: Available online 2 September 2018

Source: Gait & Posture

Author(s): Tobias Weber, Sauro E. Salomoni, Dorothée Debuse, François Hug, Nick Caplan, Enrico De Martino, Jonathan Scott, Julie Hides, Paul Hodges

from #Audiology via ola Kala on Inoreader https://ift.tt/2wDUlH8
via IFTTT

Does the single-limb stance reflect chronic ankle instability in an athlete?

Publication date: Available online 2 September 2018

Source: Gait & Posture

Author(s): Takeshi Toyooka, Yukio Urabe, Shiro Sugiura, Akito Takata, Masanori Shinozaki, Yuka Takata, Tohru Ishizaki, Keita Nakamura, Kazumi Otsuki, Takato Oyama, Satoru Nishikawa

Abstract

Background

The single-limb stance with closed eyes has been widely used to evaluate chronic ankle instability as static balance; however, there was lack of consideration of whether difference in age, frequency of previous ankle sprain or physical ability influenced single-limb stance.

Research question

We hypothesized that the single-limb stance might not reflect subjective ankle instability and function on physical activity in people who perform sports activities.

Methods

In total, 102 high school basketball players were recruited to evaluate their physical performance at the beginning of the season. Participants were divided into five groups based on the frequency of previous ankle sprain. Karlsson ankle function score (K score) was considered as a subjective ankle function score, that was divided into various components. Each component and the single-limb stance test with center of pressure (COP) analysis was observed between the frequency of ankle sprains with one-way ANOVA and compared using Spearman’s rank correlation coefficient to verify the relationship between the K score and COP.

Results

For COP parameters, no difference was observed in the history of ankle sprains. The K score was lower in participants with three previous ankle sprains than in those with a different number of ankle sprains for instability, stiffness, running, work activities, support, and total K score for all parameters. There were weak negative correlations (r = -0.19~-0.35) between K score and COP parameters among participants with no history of ankle sprain or only once. In contrast, there were strong positive correlations (r = 0.69~0.87) among history of ankle sprain at third.

Significance

The single-limb stance might not accurately reflect an athlete’s ankle instability and function on physical activity. Clinically, therapists should choose suitable evaluation tools depending on the athlete’s activity level to check for chronic ankle instability.

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Reliability of joint kinematic calculations based on direct kinematic and inverse kinematic models in obese children

Publication date: Available online 1 September 2018

Source: Gait & Posture

Author(s): B. Horsak, B. Pobatschnig, C. Schwab, A. Baca, A. Kranzl, H. Kainz

Abstract

Background

In recent years, the reliability of inverse (IK) and direct kinematic (DK) models in gait analysis have been assessed intensively, but mainly for lean populations. However, obesity is a growing issue. So far, the sparse results available for the reliability of clinical gait analysis in obese populations are limited to direct kinematic models. Reliability error-margins for inverse kinematic models in obese populations have not been reported yet.

Research questions

Is there a difference in the reliability of IK models compared with a DK model in obese children? Are there any differences in the joint kinematic output between IK and DK models?

Methods

A test-retest study was conducted using three-dimensional gait analysis data from two obese female and eight obese male participants from an earlier study. Data were analyzed using a DK model and two OpenSim-based IK models. Test-retest reliability was compared by calculating the Standard Error of Measurement (SEM) along with similar absolute reliability measures. A Friedman Test was used to assess whether there were any significant differences in the reliability between the models. Kinematic output of the models was compared by using Statistical Parametric Mapping (SPM).

Results

No significant differences were found in the reliability between the DK and IK models. The SPM analysis indicated several significant differences between both IK models and the DK approach. Most of these differences were continuous offsets.

Significance

Reliability values showed clinically acceptable error-margins and were comparable between all models. Therefore, our results support the careful use of IK models in overweight or obese populations, e.g. for musculoskeletal modelling studies. The inconsistent kinematic output can mainly be explained by different model conventions and anatomical segment coordinate frame definitions.

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