scholarly journals Wearable nanocomposite kinesiology tape for distributed muscle engagement monitoring

MRS Advances ◽  
2021 ◽  
Author(s):  
Yun-An Lin ◽  
m. c. schraefel ◽  
Wei-Hung Chiang ◽  
Kenneth J. Loh
Keyword(s):  
Assessment Tool ◽  
High Sensitivity ◽  
Muscular Contraction ◽  
Electronic Textiles ◽  
Constant Attention ◽  
Motion Primitives ◽  
Kinesiology Tape ◽  
Sports Coaches ◽  
Sports Coaching ◽  
Distributed Strain

AbstractSports coaches help athletes develop and improve their skills by assessing their ability to perform motion primitives that make up functional sports tasks. Sports coaching today is mostly done visually, which demands constant attention and can be imprecise. While sensors like electronic textiles and surface electromyography can measure muscle engagement, they are susceptible to movement artifacts and noise due to surface electrode issues. Therefore, the work reported here focuses on our development of self-adhesive, fabric-based sensors that can be directly affixed onto skin for monitoring skin-strains and distributed muscular engagement during functional movements. The vision is that these sensors can be readily used by sports coaches and individuals to better assess motion primitives and the execution of sports tasks. The approach integrates piezoresistive graphene nanosheet thin films with kinesiology tape (K-Tape). Because every location of the film is responsive to strains, electrodes can also be judiciously placed along the nanocomposite for distributed strain sensing. Nanocomposite or “Smart K-Tape” sensors were fabricated, and electromechanical tests were conducted to characterize their tensile, compressive, and cyclic sensing properties. Upon confirming their linearity, repeatability, stability, and high sensitivity, individuals wore Smart K-Tape sensors over different muscle groups as they performed prescribed exercise and stretching movements. The Smart K-Tapes outputted unique waveforms that revealed the speed and duration of muscular engagement through movement sequences. Furthermore, the region of muscular contraction could also be localized using each Smart K-Tape as a distributed strain sensor, which demonstrated promise as a convenient and quantitative motion primitive assessment tool relevant for sports coaching and athletic skills development.

An efficient PEDOT-coated textile for wearable thermoelectric generators and strain sensors

2019 ◽  
Vol 7 (12) ◽  
pp. 3496-3502 ◽  
Author(s):  
Yanhua Jia ◽  
Lanlan Shen ◽  
Jing Liu ◽  
Weiqiang Zhou ◽  
Yukou Du ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Strain Sensors ◽  
Thermoelectric Generators ◽  
Electronic Textiles ◽  
Water Durability

Highly flexible PEDOT-based electronic textiles were successfully fabricated for wearable thermoelectric generators and strain sensors with high sensitivity and superior water durability.

scholarly journals Highly-Sensitive Textile Pressure Sensors Enabled by Suspended-Type All Carbon Nanotube Fiber Transistor Architecture

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1103
Author(s):  
Jae Sang Heo ◽  
Keon Woo Lee ◽  
Jun Ho Lee ◽  
Seung Beom Shin ◽  
Jeong Wan Jo ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Pressure Sensor ◽  
Pressure Range ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Low Pressure ◽  
Electronic Textiles ◽  
Carbon Nanotube Fiber ◽  
Cnt Fiber ◽  
Walled Carbon Nanotubes

Among various wearable health-monitoring electronics, electronic textiles (e-textiles) have been considered as an appropriate alternative for a convenient self-diagnosis approach. However, for the realization of the wearable e-textiles capable of detecting subtle human physiological signals, the low-sensing performances still remain as a challenge. In this study, a fiber transistor-type ultra-sensitive pressure sensor (FTPS) with a new architecture that is thread-like suspended dry-spun carbon nanotube (CNT) fiber source (S)/drain (D) electrodes is proposed as the first proof of concept for the detection of very low-pressure stimuli. As a result, the pressure sensor shows an ultra-high sensitivity of ~3050 Pa−1 and a response/recovery time of 258/114 ms in the very low-pressure range of <300 Pa as the fiber transistor was operated in the linear region (VDS = −0.1 V). Also, it was observed that the pressure-sensing characteristics are highly dependent on the contact pressure between the top CNT fiber S/D electrodes and the single-walled carbon nanotubes (SWCNTs) channel layer due to the air-gap made by the suspended S/D electrode fibers on the channel layers of fiber transistors. Furthermore, due to their remarkable sensitivity in the low-pressure range, an acoustic wave that has a very tiny pressure could be detected using the FTPS.

scholarly journals Christian sports coaches and servant leadership

2020 ◽  
pp. 174795412095176
Author(s):  
Don Vinson ◽  
Andrew Parker
Keyword(s):  
Servant Leadership ◽  
World View ◽  
Empirical Studies ◽  
Sociocultural Factors ◽  
Competitive Sport ◽  
Factors Influencing ◽  
The World ◽  
Challenging Environment ◽  
Sports Coaches ◽  
Sports Coaching

The world of competitive sport can present a challenging environment for Christian athletes and coaches. The culture of competitive sport, and particularly the attitude to winning, can cause athletes and coaches to question how their Christian faith should shape participation and/or whether they should participate at all. Few empirical studies have explored how Christian coaches frame their practice to align with their faith and reconcile the potential contradictions and challenges of coaching within competitive sporting environments. That said, there has been a recent increase in the number of studies exploring the potential relationship between sports coaching and the concept of servant leadership – a framework which is commensurate with a Christian world view. The aim of this paper is to contribute to these debates by presenting empirical evidence to explore the philosophies, intended practices and sociocultural factors influencing how Christian coaches sought to lead in competitive sporting environments. One hundred and ten coaches (female = 24, male = 86) completed an online qualitative questionnaire which explored their beliefs about leadership and coaching practice. This paper considers the ways in which Christian coaches’ might seek to frame their leadership behaviours within the context of competitive sport and how their approaches might align, or otherwise, with the theoretical tenets of servant leadership.

scholarly journals SOPROLIFE System: An Accurate Diagnostic Enhancer

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mona Zeitouny ◽  
Mireille Feghali ◽  
Assaad Nasr ◽  
Philippe Abou-Samra ◽  
Nadine Saleh ◽  
...  
Keyword(s):  
Assessment Tool ◽  
High Reliability ◽  
Intraclass Correlation ◽  
High Sensitivity ◽  
Assessment System ◽  
Diagnostic Methods ◽  
Caries Detection ◽  
Occlusal Caries ◽  
Posterior Teeth ◽  
Icdas Ii

Objectives.The aim of this study was to evaluate a light-emitting diode fluorescence tool, the SOPROLIFE light-induced fluorescence evaluator, and compare it to the international caries detection and assessment system-II (ICDAS-II) in the detection of occlusal caries. Methods. A total of 219 permanent posterior teeth in 21 subjects, with age ranging from 15 to 65 years, were examined. An intraclass correlation coefficient (ICC) was computed to assess the reliability between the two diagnostic methods.Results.The results showed a high reliability between the two methods (ICC = 0.92; IC = 0.901–0.940;P<0.001). The SOPROLIFE blue fluorescence mode had a high sensitivity (87%) and a high specificity (99%) when compared to ICDAS-II.Conclusion.Compared to the most used visual method in the diagnosis of occlusal caries lesions, the finding from this study suggests that SOPROLIFE can be used as a reproducible and reliable assessment tool. At a cut-off point, categorizing noncarious lesions and visual change in enamel, SOPROLIFE shows a high sensitivity and specificity. We can conclude that financially ICDAS is better than SOPROLIFE. However SOPROLIFE is easier for clinicians since it is a simple evaluation of images. Finally in terms of efficiency SOPROLIFE is not superior to ICDAS but tends to be equivalent with the same advantages.

scholarly journals Formal vs. Informal Coach Education

2009 ◽  
Vol 4 (3) ◽  
pp. 325-364 ◽  
Author(s):  
Clifford J. Mallett ◽  
Pierre Trudel ◽  
John Lyle ◽  
Steven B. Rynne
Keyword(s):  
Learning Opportunities ◽  
Coach Education ◽  
International Council ◽  
Ongoing Process ◽  
Sports Coaches ◽  
Sports Coaching

The training of coaches is considered central to sustaining and improving the quality of sports coaching and the ongoing process of professionalisation. Sports coaches participate in a range of learning opportunities (informal to formal) that contribute to their development to varying degrees. In this article, we present our collective understanding on the varying types of learning opportunities and their contribution to coach accreditation and development. The authors presented these views (from a sports pedagogy perspective) as part of a workshop entitled “Formal vs. Informal Coach Education” at the 2007 International Council of Coach Education Master Class in Beijing. These reflections seek to stimulate the on-going, and often sterile, debate about formal versus informal coach education/learning in order to progress scholarship in coaching.

scholarly journals A Communal Language for Decision Making in Team Invasion Sports

2021 ◽  
Vol 8 (1) ◽  
pp. 122-129
Author(s):  
Michael Ashford ◽  
Andrew Abraham ◽  
Jamie Poolton
Keyword(s):  
Decision Making ◽  
Information Processing ◽  
Outcomes Research ◽  
Knowledge Exchange ◽  
Team Sports ◽  
Naturalistic Decision Making ◽  
Human Decision ◽  
Conceptual Paper ◽  
Sports Coaches ◽  
Sports Coaching

Invasion team sports coaches are faced with the problem of developing players who, in any given situation, can make decisions that lead to successful outcomes. Research into human decision making has established three widely accepted perspectives, which sports coaching has used to understand player decision making and inform practice: information processing, ecological psychology, and naturalistic decision making. As a result, coaches are challenged with perspective-specific terminology and having to draw connections between similar findings that are explained in quite different ways. This conceptual paper presents a plainer account of player decision making by proposing a communal language within a conceptual framework for decision making in invasion team sports. It is hoped that the proposed language and framework will, together, facilitate knowledge exchange between researchers and coaches for the betterment of player development.

scholarly journals Administrative support for the teaching of physical education and sports coaching in secondary schools

1998 ◽  
Vol 1 (1) ◽  
pp. 105-112
Author(s):  
A. Onifade ◽  
O. Odedeyi
Keyword(s):  
Physical Education ◽  
Administrative Support ◽  
Physical Education Teachers ◽  
Effective Dynamic ◽  
Core Subject ◽  
The Subject ◽  
Certificate Examination ◽  
Senior Secondary ◽  
Sports Coaches ◽  
Sports Coaching

This paper examines the areas where administrative support are offered by physical education teachers and sports coaches in the discharge of their duties. The paper also analyzes how the administrative support is being offered. It is hoped that such all awareness will make them conscious of the need for them to be effective. Dynamic and creative as physical education teachers and sports coaches. The paper discusses the position of Physical Education in the country's educational policy as recommended by Ghana Education Review Committee of1994 which made the subject a non-externally examinable subject. The paper suggests that the subject should be made a core subject at all levels and an externally examinable subject at Senior Secondary Certificate Examination level. It is concluded that if adequate and genuine administrative support is offered and the subject is made a core and an externally examinable subject it will be more appreciated and a better awareness of its usefulness will be enhanced.

High-sensitivity electrical TDR distributed strain sensor

2000 ◽  
Author(s):  
Mark W. Lin ◽  
Ayo O. Abatan ◽  
Yongmei Zhou
Keyword(s):  
Strain Sensor ◽  
High Sensitivity ◽  
Distributed Strain

scholarly journals DoloTest in General Practice Study: Sensitivity and Specificity Screening for Depression

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Kim Kristiansen ◽  
Pernille Lyngholm-Kjaerby ◽  
Claus Moe
Keyword(s):  
Primary Care ◽  
Sensitivity And Specificity ◽  
Screening Tool ◽  
Assessment Tool ◽  
Primary Care Clinic ◽  
High Sensitivity ◽  
Care Clinic ◽  
Major Depression Inventory ◽  
Hrqol Assessment

Background. Coexistence of pain and depression has significant impact on the patient’s quality of life and treatment outcome. DoloTest is a pain and HRQoL assessment tool developed to provide shared understanding between the clinician and the patient of the condition by a visual profile. Aim. To find the sensitivity and specificity of DoloTest as a screening tool for depression for patients in primary care. Methods. All patients coming to a primary care clinic were asked to fill in a DoloTest and a Major Depression Inventory. Results. 715 (68.5%) of 1044 patients entered the study. 34.4% came due to pain. 16.1% met depression criteria, and 26.8% of patients coming due to pain met criteria for depression. 65.6% of the men and 54.2% of the women meeting the criteria for depression came due to pain. Depressed patients had statistically significant higher scores on all DoloTest domains. Selecting the cutoff value for the domain “low spirits” to be “65” (0–100) for depression gave a sensitivity of 78% (70–85%) and a specificity of 95% (93–96%) for meeting depression criteria. Conclusion. DoloTest can with a high sensitivity and specificity identify persons meeting criteria for depression and is an easy-to-use screening tool to identify patients with the coexistence of pain and depression.

Sign in / Sign up

Export Citation Format

Share Document