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https://www.readbyqxmd.com/read/29745219/changes-in-doppler-echocardiography-depending-on-type-of-elite-athletes-immediately-after-maximal-exercise
#1
Saejong Park, Young J Moon, Gi-Byoung Nam, Young-Joo Kim
BACKGROUND: This study explores physiologic differences in the cardiac structure and function of elite athletes during the resting state and immediately after maximum exercise by training type compared to a healthy people of a CG. METHODS: The study focuses on elite middle-long distance group (MLDG), weightlifter group (WG), and a control group (CG). Cardiac structure, systolic function, and diastolic function were measured for all subjects at resting state and immediately after maximum exercise using echocardiography...
May 9, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29709932/an-unusual-case-of-inferior-vena-cava-thrombosis-in-a-healthy-male-bodybuilder
#2
Junichi Imanishi, Michiko Iseri, Masahiro Motoki, Sachiko Yoshikawa, Naohiko Sone, Tomoyuki Honjo, Kohei Kamemura, Kenji Kaihotsu, Masanori Iwahashi
Inferior vena cava (IVC) thrombosis is very rare, particularly in the absence of an apparent congenital caval abnormality or hypercoagulable state. We herein report an unusual case of a healthy and active 62-year-old male bodybuilder with a mass-like IVC thrombus. We placed an IVC filter and began treatment with rivaroxaban. The patient recovered successfully, and the IVC thrombus completely disappeared three months later. This case suggested that extrinsic compression of IVC by a tightened weightlifting belt around the abdomen is a triggering factor of IVC thrombosis, and rivaroxaban, a new oral anticoagulant, may be a useful option for treatment...
April 27, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29706383/predicting-net-joint-moments-during-a-weightlifting-exercise-with-a-neural-network-model
#3
Kristof Kipp, Matthew Giordanelli, Christopher Geiser
The purpose of this study was to develop and train a Neural Network (NN) that uses barbell mass and motions to predict hip, knee, and ankle Net Joint Moments (NJM) during a weightlifting exercise. Seven weightlifters performed two cleans at 85% of their competition maximum while ground reaction forces and 3-D motion data were recorded. An inverse dynamics procedure was used to calculate hip, knee, and ankle NJM. Vertical and horizontal barbell motion data were extracted and, along with barbell mass, used as inputs to a NN...
April 25, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29657436/upper-extremity-weightlifting-injuries-diagnosis-and-management
#4
REVIEW
Kayvon Golshani, Mark E Cinque, Peter O'Halloran, Kenneth Softness, Laura Keeling, J Ryan Macdonell
Common upper extremity injuries in resistance training athletes include muscle strains, ligament sprains, pectoralis major tendon ruptures, distal biceps tendon ruptures, and chronic shoulder pain and capsulolabral injuries. While each injury is unique in its specific anatomic location and mechanism, each is preventable with proper exercise technique, safety and maintenance of muscle balance. Conservative treatment is the therapeutic modality of choice and these injuries generally resolve with workout modification, appropriate recovery, anti-inflammatory medication, and physical therapy...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29629185/evaluation-of-spine-mris-in-athletes-participating-in-the-rio-de-janeiro-2016-summer-olympic-games
#5
Michael S Wasserman, Ali Guermazi, Mohamed Jarraya, Lars Engbretsen, Mohamad AbdelKader, Frank W Roemer, Daichi Hayashi, Michel D Crema, Asim Z Mian
Background/aim: In high-level Olympic athletes, many spinal pathologies arise from overuse, while others are the result of acute injury. Our aim is to analyse the epidemiology of spinal pathologies detected on MRI in athletes participating in the 2016 Rio de Janeiro Summer Olympics. Methods: In this retrospective study, all spine MRIs performed during the 2016 Rio Games were analysed. Descriptive data from the MRIs were tabulated and analysed for disc degeneration, spinal canal and/or neural foraminal narrowing, and acute/chronic fractures...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29564546/sports-psychiatry-mental-health-and-mental-disorders-in-athletes-and-exercise-treatment-of-mental-disorders
#6
REVIEW
Andreas Ströhle
Sports psychiatry has developed for the past 3 decades as an emerging field within psychiatry and sports medicine. An International society has been established in 1994 and also national interest groups were implemented, mostly within the national organizations for psychiatry, some also containing the topic of exercise treatment of mental disorders. Where are we now 30 years later? We systematically but also selectively review the medical literature on exercise, sport, psychiatry, mental health and mental disorders and related topics...
March 21, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29547489/the-impact-of-power-clean-ability-and-training-age-on-adaptations-to-weightlifting-style-training
#7
Lachlan P James, Paul Comfort, Timothy J Suchomel, Vincent G Kelly, Emma M Beckman, G Gregory Haff
The purpose of this investigation was to determine whether weightlifting actions are a viable method for improving athletic performance amongst weaker, inexperienced lifters when compared to individuals with a greater power clean result, and hence weightlifting ability and experience. Two groups of males with distinctly different power clean performances (higher performance (HP): N = 8; BM = 78.1±4.0 kg; 1RM PC = 1.08±0.09 kgBM; lower performance (LP): N = 8; BM=82.6±14.0 kg; 1RM PC=0.78±0.1 kg·BM) and resistance training age (HP: resistance training experience=3...
March 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29517412/distribution-of-lower-extremity-work-during-clean-variations-performed-with-different-effort
#8
Torstein E Dæhlin, Tron Krosshaug, Loren Z F Chiu
The purpose of this research was to investigate how lower extremity work was distributed during the pull of cleans performed lifting the barbell to the minimum height required to receive it in a full squat (minimal height clean); or with maximum effort to elevate the barbell as high as possible and receiving it in either a full (maximal effort clean) or partial (power clean) squat. Eight weightlifters screened for proficient technique performed these clean variations at 80% of one repetition maximum. Work performed on the barbell and by the lower extremity net joint moments (NJM) was computed from marker trajectories and ground reaction forces...
March 8, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29490719/associations-of-anabolic-androgenic-steroid-use-with-other-behavioral-disorders-an-analysis-using-directed-acyclic-graphs
#9
Gen Kanayama, Harrison G Pope, James I Hudson
BACKGROUND: Anabolic-androgenic steroid (AAS) use is known to be associated with other psychiatric disorders, such as body image disorders, conduct disorder/sociopathy, and other substance use disorders (SUD) - but the causal pathways among these conditions remain poorly delineated. METHODS: We created a directed acyclic graph to diagram hypothesized relationships among AAS use and dependence, body image disorder (BID), conduct disorder/sociopathy, and other SUD...
March 1, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29445518/why-do-endocrine-profiles-in-elite-athletes-differ-between-sports
#10
Peter H Sönksen, Richard I G Holt, Walailuck Böhning, Nishan Guha, David A Cowan, Christiaan Bartlett, Dankmar Böhning
Background: Endocrine profiles have been measured on blood samples obtained immediately post-competition from 693 elite athletes from 15 Olympic Sports competing at National or International level; four were subsequently excluded leaving 689 for the current analysis. Methods: Body composition was measured by bioimpedance in a sub-set of 234 (146 men and 88 women) and from these data a regression model was constructed that enabled 'estimated' lean body mass and fat mass to be calculated on all athletes...
2018: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/29405284/sports-and-headaches
#11
Randolph W Evans
In the United States, up to 3.8 million people per year have sports-related mild traumatic brain injury frequently followed by a variety of headaches. Headaches associated with sports (exertional, weightlifter's, and external compression headache) are also reviewed.
March 2018: Headache
https://www.readbyqxmd.com/read/29385904/effects-of-weightlifting-exercise-traditional-resistance-and-plyometric-training-on-countermovement-jump-performance-a-meta-analysis
#12
Ricardo Berton, Manoel E Lixandrão, Claudio M Pinto E Silva, Valmor Tricoli
Jump performance is considered an important factor in many sports. Thus, strategies such as weightlifting (WL) exercises, traditional resistance training (TRT) and plyometric training (PT) are effective at improving jump performance. However, it is not entirely clear which of these strategies can enable greater improvements on jump height. Thus, the purpose of the meta-analysis was to compare the improvements on countermovement jump (CMJ) performance between training methods which focus on WL exercises, TRT, and PT...
February 1, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29377776/the-effect-of-vision-and-surface-compliance-on-balance-in-untrained-and-strength-athletes
#13
Megan A Bryanton, Martin Bilodeau
The purpose of this investigation was to evaluate the effect of the removal of vision and/or surface compliance on postural stability in strength athletes who habitually use free-weights and compound movements in their training (i.e., powerlifters, Olympic weightlifters), and untrained individuals. Static and dynamic balance testing was performed with eyes open or closed on stable and memory foam surfaces. Both groups had similar increases in postural sway area and velocity during quiet standing testing; whereas group main effects and interactions for dynamic testing revealed that untrained participants experienced greater relative declines in postural performance when voluntary limits of stability are stressed, especially when both vision and surface compliance were deterred...
January 29, 2018: Journal of Motor Behavior
https://www.readbyqxmd.com/read/29370027/muscular-strength-is-associated-with-higher-intraocular-pressure-in-physically-active-males
#14
Jesús Vera, Raimundo Jiménez, Amador García-Ramos, David Cárdenas
SIGNIFICANCE: The positive association between intraocular pressure (IOP) and relative maximum force may have relevance for exercise recommendations when IOP is a concern. PURPOSE: The relationship between exercise and IOP has been approached in several studies. However, the influence of muscle function on IOP remains underexplored. This study aimed to determine the relationship between the maximal mechanical capabilities of muscles to generate force, velocity, and power with IOP...
February 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29304957/editorial-commentary-it-s-the-fracture-not-the-fragment-that-causes-the-pain-posteromedial-elbow-impingement-in-baseball-players
#15
EDITORIAL
Shawn W O'Driscoll
Posterior impingement pain in baseball players is typically due to a fractured olecranon osteophyte. Computed tomographic (CT) scanning is the imaging of choice when evaluating posterior or posteromedial elbow pain in athletes who have subjected the elbow to excessive stresses such as occur in overhead throwing and weightlifting. Sometimes the fracture fragment can be so small that it might not be detected on plain radiographs, magnetic resonance imaging, or even at the time of arthroscopy. Symptomatic fractured olecranon osteophytes can be diagnosed clinically with the extension impingement test or arm bar test...
January 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29282554/soccer-helps-build-strong-bones-during-growth-a-systematic-review-and-meta-analysis
#16
REVIEW
Gabriel Lozano-Berges, Ángel Matute-Llorente, Alejandro González-Agüero, Alejandro Gómez-Bruton, Alba Gómez-Cabello, Germán Vicente-Rodríguez, José A Casajús
The aim of this study was to analyze the effects of soccer practice on bone in male and female children and adolescents. MEDLINE, PubMed, SPORTDiscus and Web of Science databases were searched for scientific articles published up to and including October 2016. Twenty-seven studies were included in this systematic review (13 in the meta-analysis). The meta-analysis was performed by using OpenMeta[Analyst] software. It is well documented that soccer practice during childhood provides positive effects on bone mineral content (BMC) and density (BMD) compared to sedentary behaviors and other sports, such as tennis, weightlifting, or swimming...
March 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29281133/the-impact-of-strength-level-on-adaptations-to-combined-weightlifting-plyometric-and-ballistic-training
#17
L P James, G Gregory Haff, V G Kelly, M J Connick, B W Hoffman, E M Beckman
The purpose of this investigation was to determine whether the magnitude of adaptation to integrated ballistic training is influenced by initial strength level. Such information is needed to inform resistance training guidelines for both higher- and lower-level athlete populations. To this end, two groups of distinctly different strength levels (stronger: one-repetition-maximum (1RM) squat = 2.01 ± 0.15 kg·BM-1 ; weaker: 1.20 ± 0.20 kg·BM-1 ) completed 10 weeks of resistance training incorporating weightlifting derivatives, plyometric actions, and ballistic exercises...
December 27, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29200094/characteristics-of-a-national-level-female-weightlifter-peaking-for-competition-a-case-study
#18
Caleb D Bazyler, Satoshi Mizuguchi, Michael C Zourdos, Kimitake Sato, Ashley A Kavanaugh, Brad H DeWeese, Kevin F Breuel, Michael H Stone
This study investigated physiological and performance changes of a national level 69kg female weightlifter following three competition phases over a 28-week training period. The athlete first trained for a regional championship (weeks 1-12), followed by a local competition (weeks 13-23) and the national championship (weeks 24-28). Body mass, vastus lateralis cross-sectional area, and unloaded and loaded squat jump performance were assessed weekly during each 4-week competition phase. Serum biomarkers, and dynamic mid-thigh pulls were assessed prior to and after each competition phase...
December 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29194183/hyperactivity-of-the-sympatho-adrenomedullary-system-without-any-modification-of-the-hypothalamic-pituitary-adrenal-axis-following-food-restriction-among-high-level-weightlifters
#19
Alexandre Durguerian, Edith Filaire, Catherine Drogou, Fabien Sauvet, Clément Bougard, Mounir Chennaoui
We examined the effects of six days of food restriction on salivary α-amylase (sAA), cortisol and dehydroepiandrostenedione (DHEA) awakening responses, psychological parameters and performance among eleven international weightlifters. Assessments were made at baseline (T1) and 6 days after a normal period of training while maintaining body weight (T2). Then, participants were assigned into two groups depending on whether they lost (Diet group) or maintained (Control group) their body weight. Anthropometric, psychological, physical and physiological assessments were also realized 6 days (T3) following the restricted dietary period for the Diet group...
November 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29084094/the-effects-of-practical-blood-flow-restriction-training-on-adolescent-lower-body-strength
#20
Paul E Luebbers, Emily V Witte, Johnathan Q Oshel
The purpose of this study was to examine the effects of a practical blood flow restriction (BFR) training program on lower-body strength of high school weightlifters. Twenty-five students were divided into three groups. For six weeks, each group completed the same resistance training program with the exception of the parallel back squat exercise (2 days/week), which was different for each group. One group (HI) completed a traditional high load (≥65% 1RM) back squat protocol with three sets of low repetitions (≤10)...
October 27, 2017: Journal of Strength and Conditioning Research
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