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https://www.readbyqxmd.com/read/29775483/ldha-gene-is-associated-with-pigeon-survivability-during-racing-competitions
#1
Sherif Ramadan, Takeshi Miyake, Junichi Yamaura, Miho Inoue-Murayama
Pigeon racing is a popular sport worldwide. Pigeons are under continuous selection to improve speed, spatial orientation, and endurance during long flights. However, numerous genetic and non-genetic factors affect survivability and homing ability, making such traits difficult for breeders to control. Polymorphisms in the lactate dehydrogenase A gene (LDHA) likely affects pigeon racing and homing abilities, due to its role in physical and mental performance. Additionally, the adenylate cyclase activating polypeptide 1 gene (ADCYAP1) has been associated with physiological and behavioral shifts that occur during avian migration...
2018: PloS One
https://www.readbyqxmd.com/read/29772188/hamstring-and-ankle-flexibility-deficits-are-weak-risk-factors-for-hamstring-injury-in-professional-soccer-players-a-prospective-cohort-study-of-438-players-including-78-injuries
#2
Nicol van Dyk, Abdulaziz Farooq, Roald Bahr, Erik Witvrouw
BACKGROUND: Hamstring injuries remain a significant injury burden in sports such as soccer that involve high-speed running. It has repeatedly been identified as the most common noncontact injury in elite male soccer, representing 12% of all injuries. As the incidence of hamstring injuries remains high, investigations are aimed at better understanding how to prevent hamstring injuries. Stretching to improve flexibility is commonly used in elite-level sports, but risk factor studies have reported contradicting results, leading to unclear conclusions regarding flexibility as a risk factor for hamstring injuries...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29769830/low-external-workloads-are-related-to-higher-injury-risk-in-professional-male-basketball-games
#3
Toni Caparrós, Martí Casals, Álvaro Solana, Javier Peña
The primary purpose of this study was to identify potential risk factors for sports injuries in professional basketball. An observational retrospective cohort study involving a male professional basketball team, using game tracking data was conducted during three consecutive seasons. Thirty-three professional basketball players took part in this study. A total of 29 time-loss injuries were recorded during regular season games, accounting for 244 total missed games with a mean of 16.26 ± 15.21 per player and season...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29766509/acceleration-and-deceleration-at-constant-speed-systematic-modulation-of-motion-perception-by-kinematic-sonification
#4
Alfred O Effenberg, Gerd Schmitz
Many domains of human behavior are based on multisensory representations. Knowledge about the principles of multisensory integration is useful to configure real-time movement information for the online support of perceptuomotor processes (motor perception, control, and learning). A powerful method for generating real-time information is movement sonification. Remarkable evidence exists on movement-acoustic real-time information being effective in behavioral domains (music training, motor rehabilitation, sports)...
May 16, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29763813/age-and-gymnastic-experience-effects-on-sensory-reweighting-processes-during-quiet-stand
#5
Albert Busquets, Silvia Aranda-Garcia, Blai Ferrer-Uris, Michel Marina, Rosa Angulo-Barroso
BACKGROUND: The relative contribution of sensory inputs to control balance while standing is dynamically adjusted. These sensory reweighting processes could be impacted by age and sport expertise capabilities, especially when the sport emphasizes equilibrium like artistic gymnastics. RESEARCH QUESTION: The aim of this study was to explore the sensory reweighting processes to adjust standing posture in children and adults with different gymnastic expertise (gymnasts, G, and non-gymnast, NG)...
May 8, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29748660/the-association-of-problematic-eating-behaviours-with-food-quality-and-body-mass-index-at-7-years-of-age
#6
Sara Costa, Andreia Pinto, Ana Cristina Santos, Andreia Oliveira
BACKGROUND/OBJECTIVES: There is scarce evidence of how certain eating behaviours compromise the compliance with dietary guidelines and weight status in school-aged children. This study aims to evaluate the association of children's problematic eating behaviours with food quality and body mass index at 7 years of age. SUBJECTS/METHODS: Participants were children aged 7 years old from a population-based cohort study from Porto, Portugal-Generation XXI. Children's quantity and speed of ingestion, food refusal at the table and food rewards requesting were evaluated by caregiver's perception...
May 11, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29745735/time-trial-performance-in-elite-speed-skaters-after-remote-ischemic-preconditioning
#7
Philippe Richard, François Billaut
PURPOSE: Speed skating leads to blood-flow restriction and deoxygenation in the lower limbs (especially the right leg) that may affect performance. Although the acute influence of such deoxygenation is not clearly understood, we tested whether remote ischemic preconditioning (RIPC) could modify muscular oxygenation and improve time-trial performance in that sport. METHODS: Using a randomized, single-blind, placebo-controlled, crossover design, 9 elite speed skaters performed 1000-m on-ice time-trials preceded by either RIPC of the upper limbs (3x5-min compression/5-min reperfusion cycles at 30 mmHg > arterial systolic pressure) or SHAM (10 mmHg)...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29739303/the-utilization-of-formal-physical-therapy-after-shoulder-arthroplasty
#8
Eric R Wagner, Muriel J Solberg, Laurence D Higgins
Study Design Epidemiological retrospective database study. Background It is widely believed that structured rehabilitation programs by professional therapists help guide patients through the various recovery periods after shoulder arthroplasty, speeding up their recovery and improving their final functional gains. However, to our knowledge, there are no studies providing information about the current state of physical rehabilitation use after shoulder arthroplasty. Objectives Describe the variation in physical rehabilitation utilization after total and reverse total shoulder arthroplasty and identify differences in utilization based on type of insurance (private versus public), gender, age, region of the country, and type of replacement...
May 8, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29721837/change-of-direction-biomechanics-is-what-s-best-for-anterior-cruciate-ligament-injury-prevention-also-best-for-performance
#9
REVIEW
Aaron S Fox
Change-of-direction maneuvers (e.g., side-step cutting) are an important aspect of performance in multi-directional sports, but these maneuvers are also associated with anterior cruciate ligament (ACL) injury. Despite this, the impact of biomechanics on ACL injury risk and performance is often examined in isolation. The purpose of this review was to examine the alignment between biomechanical recommendations for ACL injury prevention and performance with regard to change-of-direction maneuvers. Several studies linking change-of-direction biomechanics to both ACL injury risk and performance were examined...
May 2, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29695970/sport-specific-assessment-of-the-effectiveness-of-neuromuscular-training-in-young-athletes
#10
REVIEW
Erika Zemková, Dušan Hamar
Neuromuscular training in young athletes improves performance and decreases the risk of injuries during sports activities. These effects are primarily ascribed to the enhancement of muscle strength and power but also balance, speed and agility. However, most studies have failed to demonstrate significant improvement in these abilities. This is probably due to the fact that traditional tests do not reflect training methods (e.g., plyometric training vs. isometric or isokinetic strength testing, dynamic balance training vs...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29693567/optical-and-acoustic-sensor-based-3d-ball-motion-estimation-for-ball-sport-simulators-%C3%A2
#11
Sang-Woo Seo, Myunggyu Kim, Yejin Kim
Estimation of the motion of ball-shaped objects is essential for the operation of ball sport simulators. In this paper, we propose an estimation system for 3D ball motion, including speed and angle of projection, by using acoustic vector and infrared (IR) scanning sensors. Our system is comprised of three steps to estimate a ball motion: sound-based ball firing detection, sound source localization, and IR scanning for motion analysis. First, an impulsive sound classification based on the mel-frequency cepstrum and feed-forward neural network is introduced to detect the ball launch sound...
April 25, 2018: Sensors
https://www.readbyqxmd.com/read/29688149/a-6-minute-sub-maximal-run-test-to-predict-vo-2-max
#12
Marcos Matabuena, Juan C Vidal, Philip R Hayes, Fernando Huelin Trillo
Maximal oxygen uptake ([Formula: see text] max) is a key indicator to assess health as well as sports performance. Currently, maximal exercise testing is the most accurate measure of maximal aerobic power, since submaximal approaches are still imprecise. In this paper, we propose a new method to predict [Formula: see text] max from a submaximal, low intensity, test in sports men and women. 182 males and 108 females from the High Performance Center of Pontevedra (Spain), aged 10-46 years old, with a [Formula: see text] max between 30...
April 24, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29688136/predictors-of-attack-performance-in-high-level-male-volleyball-players
#13
Dimitrios Challoumas, Andreas Artemiou
PURPOSE: In volleyball, teams win the majority of points through attacks ('spikes') and therefore attack effectiveness (AE) is one of the most important predictors of victory. Traditionally, greater vertical jump heights (VJH) and higher spike speeds (SS) have been thought to increase AE, however relevant research is limited. Our aim was to assess the relationship of VJH and SS with AE as well as identify possible associations of demographic and anthropometric factors, including common volleyball injuries, with VJH, SS and AE...
April 24, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29670530/validity-of-the-catapult-clearsky-t6-local-positioning-system-for-team-sports-specific-drills-in-indoor-conditions
#14
Live S Luteberget, Matt Spencer, Matthias Gilgien
Aim: The aim of the present study was to determine the validity of position, distance traveled and instantaneous speed of team sport players as measured by a commercially available local positioning system (LPS) during indoor use. In addition, the study investigated how the placement of the field of play relative to the anchor nodes and walls of the building affected the validity of the system. Method: The LPS (Catapult ClearSky T6, Catapult Sports, Australia) and the reference system [Qualisys Oqus, Qualisys AB, Sweden, (infra-red camera system)] were installed around the field of play to capture the athletes' motion...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29665614/vo2max-testing-in-trail-runners-is-there-a-specific-exercise-test-protocol
#15
Volker Scheer, Katharina Ramme, Claus Reinsberger, Hans-Christian Heitkamp
Trail running places specific physiological demands on the human body due to its uphill and downhill running sections. We developed and investigated a more sport-specific trail exercise test protocol (inclination and speed incremental protocol), and compared it to two standard exercise test protocols (horizontal step and ramp protocol) in thirteen highly trained trail runners (age 31±6 years, height 179±6.4 cm, weight 69.2±7.9 kg, BMI 21.6±2.1 kg/m2 ). The maximum oxygen uptake (VO2 max) measured during the trail test (62...
April 17, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29660897/effects-of-group-exercise-on-functional-abilities-differences-between-physically-active-and-physically-inactive-women
#16
Nebojsa Cokorilo, Milena Mikalacki, Goran Satara, Milan Cvetkovic, Dragan Marinkovic, Jelena Zvekic-Svorcan, Borislav Obradovic
BACKGROUND: Aerobic exercises to music can have a positive effect on functional and motor skills of an exerciser, their health, as well as an aesthetic and socio-psychological component. OBJECTIVE: The objective of this study was to determine the effects of reactive exercising in a group on functional capabilities in physically active and physically inactive women. METHODS: A prospective study included 64 healthy women aged 40-60 years. The sample was divided into the experimental group (n= 36), i...
March 30, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29621279/assessing-worst-case-scenarios-in-movement-demands-derived-from-global-positioning-systems-during-international-rugby-union-matches-rolling-averages-versus-fixed-length-epochs
#17
Daniel J Cunningham, David A Shearer, Neil Carter, Scott Drawer, Ben Pollard, Mark Bennett, Robin Eager, Christian J Cook, John Farrell, Mark Russell, Liam P Kilduff
The assessment of competitive movement demands in team sports has traditionally relied upon global positioning system (GPS) analyses presented as fixed-time epochs (e.g., 5-40 min). More recently, presenting game data as a rolling average has become prevalent due to concerns over a loss of sampling resolution associated with the windowing of data over fixed periods. Accordingly, this study compared rolling average (ROLL) and fixed-time (FIXED) epochs for quantifying the peak movement demands of international rugby union match-play as a function of playing position...
2018: PloS One
https://www.readbyqxmd.com/read/29621016/impact-normative-data-of-ethnically-diverse-adolescent-athletes
#18
William T Tsushima, Vincent G Tsushima, Nathan M Murata
OBJECTIVE: The aim of this research was to develop preliminary norms for the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) administered to a large sample of adolescent athletes from diverse ethnic backgrounds. DESIGN: A retrospective records review. SETTING: Middle and high school athletic departments. PARTICIPANTS: A total of 5741 male and female adolescent athletes in Hawaii, aged 13 to 18 years, in grades 9 to 12 were included in the study...
April 4, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29616583/match-analyses-of-table-tennis-in-china-a-systematic-review
#19
Hui Zhang, Zheng Zhou, Qing Yang
This study is a systematic review of match analyses of table tennis that can be used for reference in China. Using the China National Knowledge Infrastructure (CNKI) as the search tool and "table tennis" as the keyword, we searched for all papers on table tennis published in Chinese core sports journals between 1980 and 2016. Then, we read through 1209 papers and divided them into different categories according to their publication types and main topics. Among them, 128 papers on match analyses met three inclusion criteria, and hence they were chosen as the reviewed studies...
April 4, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29614469/gait-and-functionality-of-individuals-with-visual-impairment-who-participate-in-sports
#20
Edson Soares da Silva, Gabriela Fischer, Rodrigo Gomes da Rosa, Pedro Schons, Luísa Beatriz Trevisan Teixeira, Wouter Hoogkamer, Leonardo Alexandre Peyré-Tartaruga
BACKGROUND: Individuals with visual impairment (VI) have often been observed to walk slower than individuals with unimpaired vision. These observations might be confounded by typical low levels of physical activity and greater sedentary behavior in individuals with VI than the overall population. RESEARCH QUESTION: Here, we compared gait and balance measures between individuals with VI who participate in disability sports, and activity level matched sighted individuals...
March 30, 2018: Gait & Posture
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