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https://www.readbyqxmd.com/read/28319426/high-satisfaction-and-return-to-sports-after-total-shoulder-arthroplasty-in-patients-aged-55-years-and-younger
#1
Grant H Garcia, Joseph N Liu, Alec Sinatro, Hao-Hua Wu, Joshua S Dines, Russell F Warren, David M Dines, Lawrence V Gulotta
BACKGROUND: Young, active candidates for total shoulder arthroplasty (TSA) are a unique group of patients. Not only do they demand longevity and improved function, but they also desire a return to physical activities. PURPOSE: To determine the rate of return to sports in patients aged ≤55 years undergoing TSA. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: This was a retrospective review of consecutive patients who underwent anatomic TSA at a single institution...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28247104/acute-type-a-aortic-dissection-associated-with-a-sporting-activity
#2
Ryo Itagaki, Naoyuki Kimura, Satoshi Itoh, Atsushi Yamaguchi, Hideo Adachi
PURPOSE: To investigate the clinical characteristics of acute type A aortic dissection (ATAAD) occurring during a sporting activity. METHODS: The subjects of this study were 615 patients who underwent surgery for ATAAD between 1990 and 2015. The patients were divided into two groups according to whether the ATAAD was associated with a sporting activity (sports group: n = 25, mean age 62.3 years; non-sports group: n = 590, mean age 63.7 years). Specific activity was assessed in the sports group, and the characteristics and outcomes were compared between the groups...
February 28, 2017: Surgery Today
https://www.readbyqxmd.com/read/28236311/laryngoscopy-during-swimming-a-novel-diagnostic-technique-to-characterize-swimming-induced-laryngeal-obstruction
#3
Emil S Walsted, Laura L Swanton, Ken van van Someren, Tessa E Morris, Matthew Furber, Vibeke Backer, James H Hull
Exercise-induced laryngeal obstruction (EILO) is a key differential diagnosis for respiratory symptoms in athletes and is particularly prevalent in aquatic athletes. A definitive diagnosis of EILO is dependent on laryngoscopy, performed continuously, while an athlete engages in the sport that precipitates their symptoms. This report provides the first description of the feasibility of performing continuous laryngoscopy during exercise in a swimming environment. The report describes the methodology and safety of the use of continuous laryngoscopy while swimming...
February 25, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28214540/cognitive-performance-of-male-and-female-c57bl-6j-mice-after-repetitive-concussive-brain-injuries
#4
Alexander G Velosky, Laura B Tucker, Amanda H Fu, Jiong Liu, Joseph T McCabe
In contact sports, repetitive concussive brain injury (rCBI) is the prevalent form of head injury seen in athletes. The need for effective treatment is urgent as rCBI has been associated with a host of cognitive, behavioral and neurological complaints. There has been a growing trend in the use of female animals in pre-clinical research, but few studies have investigated possible sex differences following rCBI. The goal of the current study was to determine any differences between male and female C57BL/6J mice on assessments of learning and memory after repetitive concussive injury...
May 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28195972/individual-and-combined-influence-of-ace-and-actn3-genes-on-muscle-phenotypes-in-polish-athletes
#5
Joanna Orysiak, Joanna Mazur-Różycka, Krzysztof Busko, Jan Gajewski, Beata Szczepanska, Jadwiga Malczewska-Lenczowska
The aim of this study was to examine the association between ACE and ACTN3 genes, independently or in combination, and muscle strength and power in male and female athletes. The study involved 398 young male (n=266) and female (n=132) athletes representing various sport disciplines (ice hockey, canoeing, swimming, volleyball). All were Caucasians. The following measurements were taken: height of jump and mechanical power in countermovement jump (CMJ) and spike jump (SPJ), and muscle strength of 10 muscle groups (flexors and extensors of the elbow, shoulder, hip, knee and trunk)...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28182502/effect-of-dietary-nitrate-supplementation-on-swimming-performance-in-trained-swimmers
#6
Sam Lowings, Oliver Michael Shannon, Kevin Deighton, Jamie Matu, Matthew John Barlow
Nitrate supplementation appears to be most ergogenic when oxygen availability is restricted and subsequently may be particularly beneficial for swimming performance due to the breath-hold element of this sport. This represents the first investigation of nitrate supplementation and swimming time-trial (TT) performance. In a randomised double-blind repeated-measures crossover study, ten (5male, 5female) trained swimmers ingested 140ml nitrate-rich (~12.5mmol nitrate) or nitrate-depleted (~0.01mmol nitrate) beetroot juice...
February 9, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28181208/individual-environment-interactions-in-swimming-the-smallest-unit-for-analysing-the-emergence-of-coordination-dynamics-in-performance
#7
Brice Guignard, Annie Rouard, Didier Chollet, John Hart, Keith Davids, Ludovic Seifert
Displacement in competitive swimming is highly dependent on fluid characteristics, since athletes use these properties to propel themselves. It is essential for sport scientists and practitioners to clearly identify the interactions that emerge between each individual swimmer and properties of an aquatic environment. Traditionally, the two protagonists in these interactions have been studied separately. Determining the impact of each swimmer's movements on fluid flow, and vice versa, is a major challenge. Classic biomechanical research approaches have focused on swimmers' actions, decomposing stroke characteristics for analysis, without exploring perturbations to fluid flows...
February 8, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28121799/compensatory-changes-in-energy-balance-regulation-over-one-athletic-season
#8
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
PURPOSE: Mechanisms in energy balance (EB) regulation may include compensatory changes in energy intake (EI) and metabolic adaption (MA) but information is unavailable in athletes who often change EB components. We aim to investigate EB regulation compensatory mechanisms over one athletic season. METHODS: Fifty-seven athletes (39 males/18 females; handball, volleyball, basketball, triathlon, and swimming) were evaluated from the beginning to the competitive-phase of the season...
January 24, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28121323/ingestion-of-soy-whey-blended-protein-augments-sports-performance-and-ameliorates-exercise-induced-fatigue-in-a-rat-exercise-model
#9
Guangxu Ren, Suqing Yi, Hongru Zhang, Jing Wang
This study sought to determine the effects of soy-whey blended protein supplementation on sports performance and related biochemical parameters after long-term training. After a week of adaptation, eighteen 6-week-old male Wistar rats were randomly assigned to 3 groups: the standard chow diet plus whey protein (Whey) group, the standard chow diet plus soy-whey blended protein (BP) group and the standard chow diet only (control) group. Each group included 6 rats for the seven-week experiment. Before the experiment, the baseline values of body weight, grasping force and time to exhaustion due to the loaded-swimming test were recorded for each group...
January 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28094616/racket-sports-stave-off-death-better-than-swimming-or-aerobics
#10
(no author information available yet)
Racket sports, swimming and aerobics are associated with the best chance of staving off death, new study results suggest.
January 4, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28075521/association-between-adolescent-sport-activities-and-lumbar-disc-degeneration-among-young-adults
#11
Jani Takatalo, Jaro Karppinen, Simo Näyhä, Simo Taimela, Jaakko Niinimäki, Roberto Blanco Sequeiros, Tuija Tammelin, Juha Auvinen, Osmo Tervonen
The relationship between different sport activities and lumbar intervertebral disc degeneration (DD) is largely unknown. We evaluated whether adolescent participation in different sports is associated with lumbar DD in a population-based birth cohort of young adults. A total of 558 young adults (325 females and 233 males) underwent magnetic resonance imaging (MRI, 1.5-T scanner). A DD sum score, based on the Pfirrmann grading, was calculated for all lumbar levels. The sum score was categorized into no DD, 1, 2, or at least 3...
January 11, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28072669/swimming-pool-electrical-injuries-steps-toward-prevention
#12
Jun Tashiro, Cathy A Burnweit
OBJECTIVE: Electrical injuries in swimming pools are an important pediatric public health concern. We sought to (1) improve our understanding of the clinical presentation and outcomes following and (2) describe the epidemiology of swimming pool electrical injuries in the United States. METHODS: We reviewed 4 cases of pediatric (<18 y old) electrical injury from a single, urban level 1 pediatric trauma center. We also queried the National Electronic Injury Surveillance System (NEISS) for emergency department visits due to electrical injury associated with swimming pools, occurring between 1991 and 2013...
January 9, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28038316/association-of-the-female-athlete-triad-risk-assessment-stratification-to-the-development-of-bone-stress-injuries-in-collegiate-athletes
#13
Adam S Tenforde, Jennifer L Carlson, Audrey Chang, Kristin L Sainani, Rebecca Shultz, Jae Hyung Kim, Phil Cutti, Neville H Golden, Michael Fredericson
BACKGROUND: The female athlete triad (referred to as the triad) contributes to adverse health outcomes, including bone stress injuries (BSIs), in female athletes. Guidelines were published in 2014 for clinical management of athletes affected by the triad. PURPOSE: This study aimed to (1) classify athletes from a collegiate population of 16 sports into low-, moderate-, and high-risk categories using the Female Athlete Triad Cumulative Risk Assessment score and (2) evaluate the predictive value of the risk categories for subsequent BSIs...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28031765/physical-performance-during-water-polo-matches-the-effect-of-the-players-competitive-level
#14
Petros G Botonis, Argyris G Toubekis, Theodoros I Platanou
The purpose of the study was to compare playing intensity and performance changes within a water-polo match in players of different competitive levels. High-level (n = 7) and lower-level (n = 7) players performed a progressively increasing speed test of 5 x 200 m swimming and speed corresponding to lactate concentration of 4.0, 5.0 and 10.0 mmol•l-1 was calculated. Repeated sprint ability (8 x 20 m) was tested at pre-, the middle and post-match and a 400 m swimming test was completed at pre and post in five water-polo matches...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28026207/impact-sports-and-bone-fractures-among-adolescents
#15
Kyle R Lynch, Han C G Kemper, Bruna Turi-Lynch, Ricardo R Agostinete, Igor H Ito, Rafael Luiz-De-Marco, Mario A Rodrigues-Junior, Rômulo A Fernandes
The objective of the present study was to investigate the effects of different sports on stress fractures among adolescents during a 9-month follow-up period. The sample was composed of 184 adolescents divided into three groups (impact sports [n = 102]; swimming [n = 35]; non-sports [n = 47]). The occurrence of stress fracture was reported by participants and coaches. As potential confounders we considered age, sex, resistance training, body composition variables and age at peak of height velocity. There were 13 adolescents who reported fractures during the 9-month period...
December 27, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27999719/immediate-effects-of-deep-trunk-muscle-training-on-swimming-start-performance
#16
Satoshi Iizuka, Atsushi Imai, Keisuke Koizumi, Keisuke Okuno, Koji Kaneoka
BACKGROUND: In recent years, deep trunk muscle training has been adopted in various sports, including swimming. This is performed both in everyday training and as part of the warm-up routine before competitive races. It is suggested that trunk stabilization exercises are effective in preventing injury, and aid in improving performance. However, conclusive evidence of the same is yet to be obtained. The time of start phase of swimming is a factor that can significantly influence competition performance in a swimming race...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27984831/-total-joint-replacement-and-return-to-sports
#17
N Oehler, T Schmidt, A Niemeier
Background: An increasing number of physically active patients not only need to know if they will basically be able to engage in sports after undergoing arthroplasty. They also would like to know whether or not they will be able to resume their preoperative activity levels. This article aims to provide an overview of recent data regarding the following questions on hip, knee and shoulder arthroplasty: (1) What is the impact of physical activity on an endoprosthesis? (2) What level of sports can be achieved after an arthroplasty procedure? (3) What types of sport are recommended for patients with an endoprosthesis? Methods: PubMed-based review of the literature...
December 2016: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/27974154/in-air-versus-underwater-comparison-of-3d-reconstruction-accuracy-using-action-sport-cameras
#18
Gustavo R D Bernardina, Pietro Cerveri, Ricardo M L Barros, João C B Marins, Amanda P Silvatti
Action sport cameras (ASC) have achieved a large consensus for recreational purposes due to ongoing cost decrease, image resolution and frame rate increase, along with plug-and-play usability. Consequently, they have been recently considered for sport gesture studies and quantitative athletic performance evaluation. In this paper, we evaluated the potential of two ASCs (GoPro Hero3+) for in-air (laboratory) and underwater (swimming pool) three-dimensional (3D) motion analysis as a function of different camera setups involving the acquisition frequency, image resolution and field of view...
January 25, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/27967275/velocity-oxygen-uptake-and-metabolic-cost-of-pull-kick-and-whole-body-swimming
#19
Kirstin S Morris, Mark A Osborne, Megan E Shephard, David G Jenkins, Tina L Skinner
PURPOSE: The contributions of the limbs to velocity and metabolic parameters in front-crawl swimming at different intensities have not been identified with the consideration of both stroke and kick rate. Consequently, velocity, oxygen uptake (V̇O2) and metabolic cost of swimming with the whole body (swim), the upper-limbs only (pull) and lower-limbs only (kick) were compared with stroke and kick rate controlled. METHODS: Twenty elite swimmers completed six 200m trials; two swim, two pull and two kick...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27965597/transcranial-direct-current-stimulation-effects-on-athletes-cognitive-performance-an-exploratory-proof-of-concept-trial
#20
Davimar M M Borducchi, July Silveira Gomes, Henrique Akiba, Quirino Cordeiro, José Henrique M Borducchi, Lívia Stocco Sanches Valentin, Gabrielle M Borducchi, Álvaro Machado Dias
Among the 2016 Olympic and Paralympic Games' unforgettable moments, one could not overlook performances by Phelps and Bolt, which challenge old premises about the maximum extension of individual supremacism in ultracompetitive modalities and the doping scandals. Different media channels resonated these two trends, with an unseen rise on discussions about traits and practices that may set ultrahigh performance athletes apart from the more ordinary ones. Yet, some key issues remain undebated. This paper aims to add to this debate, with a proof of concept trial, which investigates whether transcranial direct current stimulation (tDCS) may serve as an aid for professional athletes...
2016: Frontiers in Psychiatry
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