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Jin-Taek Kim, Suhn-Yeop Kim, Duck-Won Oh
This case report demonstrates the effects of a scapular stabilization exercise program for managing the clinical symptoms of scapular dyskinesis in an archer presenting joint noise during shoulder movement. A 31-year-old man with a 20-year career in archery who complained of scapular dyskinesis and joint noise during shoulder movement was referred for proper management. The player performed the scapular stabilization exercise program, with an emphasis on strengthening scapular stabilizers and neutralization of scapular position, for 40 min, three times per week for 8 weeks (a total of 24 sessions)...
February 26, 2018: Physiotherapy Theory and Practice
Zahari Taha, Rabiu Muazu Musa, Anwar P P Abdul Majeed, Muhammad Muaz Alim, Mohamad Razali Abdullah
Support Vector Machine (SVM) has been shown to be an effective learning algorithm for classification and prediction. However, the application of SVM for prediction and classification in specific sport has rarely been used to quantify/discriminate low and high-performance athletes. The present study classified and predicted high and low-potential archers from a set of fitness and motor ability variables trained on different SVMs kernel algorithms. 50 youth archers with the mean age and standard deviation of 17...
December 14, 2017: Human Movement Science
Hiroshi Shinohara, Yukio Urabe
AIM: A series of archery shooting movements requires strong activity of muscles attached to the shoulder girdle and upper extremity. It is unclear which muscles influence archery competition scores. This study aimed to compare muscle activity of the shoulder girdle and upper extremity during shooting movements and to analyze the muscles influencing in archeryskill improvement. METHODS: Thirty male archers, who were divided into three groups based on skill level (elite, preelite, and beginner), were included in this study...
December 1, 2017: Journal of Sports Medicine and Physical Fitness
Kenneth Dumack, Michael Bonkowski, Steffen Clauß, Eckhard Völcker
The genus Diaphoropodon, Archer 1869, comprises filose amoebae with agglutinated tests made of quartz grains, diatom frustules, and other particulate materials. The key trait of the genus is a hyaline theca covered with numerous 5-10 μm long, hair-like rods. Based on SSU rDNA phylogeny, we show that Diaphoropodon groups closely to Lecythium, a testate amoeba genus with a flexible but naked theca. Electron microscopic images reveal that the rods of Diaphoropodon are not perforating the test but lie randomly distributed on the surface of the amoeba...
October 6, 2017: Journal of Eukaryotic Microbiology
Claudia K Niestroj, Volker Schöffl, Thomas Küpper
BACKGROUND: To evaluate type and incidence of acute and overuse injuries in high level European and German competitive archers. METHODS: Participants of the German National Indoor Championship (DM) 2012 in Solingen, Germany, and European Outdoor Championship (EM) 2012 in Amsterdam, The Netherlands, participated in the study. The design was a retrospective cohort study performed by a questionnaire. Data obtained included standard personal data (age, gender), training habits, draw weight, competition experience, and detailed data about acute and overuse injuries that occurred during the entire sporting career of the archers...
September 22, 2017: Journal of Sports Medicine and Physical Fitness
Mahdi Nabavinik, Ali Abaszadeh, Mehrab Mehranmanesh, David A Rosenbaum
Especial skills are skills that are distinctive by virtue of massive practice within the narrow contexts in which they are expressed. In the first demonstration of especial skills, Keetch, Schmidt, Lee, and Young (2005) showed that experienced basketball players are better at shooting baskets from the foul line, where they had massive amounts of practice, than would expected from their success at other locations closer to or farther from the basket. Similar results were obtained for baseball throwing. The authors asked whether especial skills hold in archery, a sport requiring less movement...
September 5, 2017: Journal of Motor Behavior
Erin FitzGerald Alaia, Zehava Sadka Rosenberg, Ignacio Rossi, Jonathan Zember, Johannes B Roedl, Lynne Pinkney, Lynne S Steinbach
PURPOSE: To assess the MRI features of growth plate injury at the base of the coracoid process. MATERIALS AND METHODS: Subjects were identified through retrospective search of our department imaging database and teaching files and the teaching files of two outside academic institutions. The coracoid base growth plate was examined with attention to widening, irregularity, abnormal signal intensity of the growth plate, and the presence of adjacent soft tissue edema...
November 2017: Skeletal Radiology
Torbjørn Soligard, Kathrin Steffen, Debbie Palmer, Juan Manuel Alonso, Roald Bahr, Alexandre Dias Lopes, Jiri Dvorak, Marie-Elaine Grant, Willem Meeuwisse, Margo Mountjoy, Leonardo Oliveira Pena Costa, Natalia Salmina, Richard Budgett, Lars Engebretsen
OBJECTIVE: To describe the pattern of injuries and illnesses sustained during the Games of the XXXI Olympiad, hosted by Rio de Janeiro from 5 to 21 August 2016. METHODS: We recorded the daily incidence of athlete injuries and illnesses (1) through the reporting of all National Olympic Committee (NOC) medical teams and (2) in the polyclinic and medical venues by the Rio 2016 medical staff. RESULTS: In total, 11 274 athletes (5089 women, 45%; 6185 men, 55%) from 207 NOCs participated in the study...
September 2017: British Journal of Sports Medicine
Claudia C Gonzalez, Joe Causer, Michael J Grey, Glyn W Humphreys, R Chris Miall, A Mark Williams
The 'quiet eye' (QE)-a period of extended gaze fixation on a target-has been reported in many tasks that require accurate aiming. Longer quiet eye durations (QEDs) are reported in experts compared to non-experts and on successful versus less successful trials. The QE has been extensively studied in the field; however, the cognitive mechanisms underlying the QE are not yet fully understood. We investigated the QEDs of ten expert and ten novice archers in the field and in the laboratory using a computer-based archery task...
September 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
LokMan Sung, Kilak Kesha, Sarah Avedschmidt, Kelly Root, Leigh Hlavaty
Bows and arrows are ancient weapons that have risen and fallen as the preeminent armaments used by man. Because of the ubiquity of firearms, fatalities from archery injuries in the United States have radically declined. However, when deaths involving this weapon do present themselves, the paucity of reference materials can be a hurdle for forensic pathologists and other forensic scientists. This article will provide a brief history of the origins of the bow and the inception of the compound bow. Comparing and contrasting the structures comprising a traditional bow to those of the modern compound bow will provide insight into how these components function in unison to propel arrows...
June 12, 2017: Journal of Forensic Sciences
LokMan Sung, Kilak Kesha, Jeffrey Hudson, Kelly Root, Leigh Hlavaty
Archery has experienced a recent resurgence in participation and has seen increases in archery range attendance and in children and young adults seeking archery lessons. Popular literature and movies prominently feature protagonists well versed in this form of weaponry. Periodic homicide cases in the United States involving bows are reported, and despite this and the current interest in the field, there are no manuscripts published on a large series of arrow wounds. This experiment utilizes a broad selection of modern arrowheads to create wounds for comparison...
April 12, 2017: Journal of Forensic Sciences
Wayne Spratford, Rhiannon Campbell
Recurve archery is an Olympic sport that requires extreme precision, upper body strength and endurance. The purpose of this research was to quantify how postural stability variables both pre- and post-arrow release, draw force, flight time, arrow length and clicker reaction time, collectively, impacted on the performance or scoring outcomes in elite recurve archery athletes. Thirty-nine elite-level recurve archers (23 male and 16 female; mean age = 24.7 ± 7.3 years) from four different countries volunteered to participate in this study prior to competing at a World Cup event...
June 2017: European Journal of Sport Science
Tobias Vogt, Kouki Kato, Stefan Schneider, Stefan Türk, Kazuyuki Kanosue
Research on motor behavioural processes preceding voluntary movements often refers to analysing the readiness potential (RP). For this, decades of studies used laboratory setups with controlled sports-related actions. Further, recent applied approaches focus on athlete-non-athlete comparisons, omitting possible effects of training history on RP. However, RP preceding real sport-specific movements in accordance to skill acquisition remains to be elucidated. Therefore, after familiarization 16 right-handed males with no experience in archery volunteered to perform repeated sports-specific movements, i...
April 2017: Human Movement Science
Arash Mirifar, Jürgen Beckmann, Felix Ehrlenspiel
Self-regulation plays an important role in enhancing human performance. Neurofeedback is a promising noninvasive approach for modifying human brain oscillation and can be utilized in developing skills for self-regulation of brain activity. So far, the effectiveness of neurofeedback has been evaluated with regard to not only its application in clinical populations but also the enhancement of performance in general. However, reviews of the application of neurofeedback training in the sports domain are absent, although this application goes back to 1991, when it was first applied in archery...
April 2017: Neuroscience and Biobehavioral Reviews
In Soo Lim
Purpose: This study was aimed to investigate the relationship between psychological and physiological changes and performance in archery, which is strongly influenced by psychological factors including concentration, tension, anxiety, and stress. Methods: A total of 19 athletes from women's colleges who participated in the 30 m individual competition at the 34th President's Cup National Archery Competition in July 2016 were included in this study. The anxiety levels of the participants were assessed on a 10-point Likert scale, with 1 corresponding to "not at all" and 10 to "extremely anxious...
December 31, 2016: Journal of Exercise Nutrition & Biochemistry
Jeong-Min Park, Gwang-Suk Hyun, Yong-Seok Jee
This study aimed to provide fundamental data contributing to archery performance improvement and stabilization of shooting posture in archers by examining the influence of Pilates core stability (PCS) exercises on dynamic and static balance. The study was conducted from December 2015 to March 2016 on high school archers who were registered as archers in the Korea Archery Association with 5 or more years of archery experience. Twenty voluntary subjects (exercise group n=10; control group n=10) with an understanding toward the aims of this study were selected and their body composition, static and dynamic balance abilities, before and after the PCS program, were measured...
December 2016: Journal of Exercise Rehabilitation
Angela Mathee, Pieter de Jager, Shan Naidoo, Nisha Naicker
INTRODUCTION: Lead exposure in shooting ranges has been under scrutiny for decades, but no information in this regard is available in respect of African settings, and in South Africa specifically. The aim of this study was to determine the blood lead levels in the users of randomly selected private shooting ranges in South Africa's Gauteng province. METHODS: An analytical cross sectional study was conducted, with participants recruited from four randomly selected shooting ranges and three archery ranges as a comparator group...
February 2017: Environmental Research
Hyun-Ju Oh, Gui-Bin Song
[Purpose] The purpose of the present study was to examine the effects of neurofeedback training on electroencephalogram changes in the cervical spine in adults with forward head posture through x-ray. [Subjects and Methods] The subjects of the study were 40 college students with forward head posture, randomly divided into a neurofeedback training group (NFTG, n=20) and a control group (CG, n=20). The neurofeedback training group performed six sessions of pottery and archery games, each for two minutes, three times per week for four weeks, while using the neurofeedback system...
October 2016: Journal of Physical Therapy Science
Hyun-Ju Oh, Gui-Bin Song
[Purpose] The purpose of the present study was to examine the effects of neurofeedback training on postural changes in the cervical spine and changes in the range of motion of the neck and in the Neck Disability Index in adults with forward head posture. [Subjects and Methods] The subjects of the study were 40 college students with forward head posture, randomly divided into a neurofeedback training group (NFTG, n=20) and a control group (CG, n=20). The neurofeedback training group received six sessions of pottery and archery games, each for two minutes, three times per week for four weeks, using the neurofeedback system...
October 2016: Journal of Physical Therapy Science
Byung-Chun You, Won-Jae Lee, Seung-Hwa Lee, Sol Jang, Hyun-Seok Lee
OBJECTIVE: To investigate the shoulder disease patterns for the table-tennis (TT) and archery (AR) wheelchair athletes via ultrasonographic evaluations. METHODS: A total of 35 wheelchair athletes were enrolled, made up of groups of TT (n=19) and AR (n=16) athletes. They were all paraplegic patients and were investigated for their wheelchair usage duration, careers as sports players, weekly training times, the Wheelchair User's Shoulder Pain Index (WUSPI) scores and ultrasonographic evaluation...
August 2016: Annals of Rehabilitation Medicine
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