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https://www.readbyqxmd.com/read/29165733/impact-of-type-of-sport-gender-and-age-on-red-blood-cell-deformability-of-elite-athletes
#1
Fabian Tomschi, Wilhelm Bloch, Marijke Grau
Our objective was to detect possible differences in red blood cell (RBC) deformability of elite athletes performing different types of sports and being of different age and gender.182 athletes were included in this cross-sectional study. RBC deformability was measured using the laser-assisted optical rotational cell-analyzer. Maximal elongation index (EI max) and shear stress at half-maximum deformation (SS 1/2) were calculated. The ratio SS 1/2 /EI max (EI Ratio) was calculated with low values representing high RBC deformation...
November 17, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29161335/shoulder-complaints-in-wheelchair-athletes-a-systematic-review
#2
Omar W Heyward, Riemer J K Vegter, Sonja de Groot, Lucas H V van der Woude
BACKGROUND: In recent years the popularity of disabled sports and competition among disabled athletes has grown considerably. With this rise in exposure of, and participation in wheelchair sports comes an increase in related stressors, including musculoskeletal load. External mechanical loading may increase the risk of shoulder complaints. The objective of this literature review was to 1) identify and describe the prevalence and/or incidence of shoulder complaints in wheelchair athletes in the literature, to 2) examine the factors and underlying mechanisms that could be potentially involved, and 3) provide some insights into the development of preventative measures...
2017: PloS One
https://www.readbyqxmd.com/read/29157726/adaptive-and-technology-independent-architecture-for-fault-tolerant-distributed-aal-solutions
#3
Michael Schmidt, Roman Obermaisser
Today's architectures for Ambient Assisted Living (AAL) must cope with a variety of challenges like flawless sensor integration and time synchronization (e.g. for sensor data fusion) while abstracting from the underlying technologies at the same time. Furthermore, an architecture for AAL must be capable to manage distributed application scenarios in order to support elderly people in all situations of their everyday life. This encompasses not just life at home but in particular the mobility of elderly people (e...
November 6, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29153477/biomechanical-adaptations-during-running-differ-based-on-type-of-exercise-and-fitness-level
#4
Lindsay V Slater, Austin S Simpson, Silvia S Blemker, Jay Hertel, Susan A Saliba, Arthur L Weltman, Joseph M Hart
Lower extremity injuries are most common in more active and fit individuals, suggesting that adaptations from neuromuscular fatigue may differ depending on type of exercise and fitness level. The purpose of this study was to compare changes in gait in highly fit and recreationally active individuals before and after two exercise protocols. Lower extremity kinematics and kinetics were measured on the dominant leg during running before and after two exercise protocols (walking/sport) from 0 to 100% of gait in 24 healthy individuals divided into higher (n=13) and lower fitness (n=11) groups...
November 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29151050/physical-activity-in-former-elite-cricketers-and-strategies-for-promoting-physical-activity-after-retirement-from-cricket-a-qualitative-study
#5
Stephanie R Filbay, Felicity L Bishop, Nicholas Peirce, Mary E Jones, Nigel K Arden
OBJECTIVES: The health benefits of professional sport dissipate after retirement unless an active lifestyle is adopted, yet reasons for adopting an active or inactive lifestyle after retirement from sport are poorly understood. Elite cricket is all-encompassing, requiring a high volume of activity and unique physical demands. We aimed to identify influences on physical activity behaviours in active and insufficiently active former elite cricketers and provide practical strategies for promoting physical activity after cricket retirement...
November 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150270/m-biceps-femoris-a-wolf-in-sheep-s-clothing-the-downside-of-a-lower-limb-injury-prevention-training
#6
Thomas Ertelt, Thomas Gronwald
Both, hamstring and ACL injuries are among the most typical injuries, particularly in change of direction and high speed running sports. They're also difficult to treat. Therefore, in the past few years, sports medicine practitioners and exercise scientists have mainly been focusing on the development and implementation of preventive programs in order to reduce the number of lower limb injuries, mainly by improving knee alignment. A number of studies have been able to prove the success of these training interventions, which are mainly addressing sensorimotor abilities and plyometric activities...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29129021/the-effect-of-natural-or-simulated-altitude-training-on-high-intensity-intermittent-running-performance-in-team-sport-athletes-a-meta-analysis
#7
REVIEW
Michael J Hamlin, Catherine A Lizamore, Will G Hopkins
BACKGROUND: While adaptation to hypoxia at natural or simulated altitude has long been used with endurance athletes, it has only recently gained popularity for team-sport athletes. OBJECTIVE: To analyse the effect of hypoxic interventions on high-intensity intermittent running performance in team-sport athletes. METHODS: A systematic literature search of five journal databases was performed. Percent change in performance (distance covered) in the Yo-Yo intermittent recovery test (level 1 and level 2 were used without differentiation) in hypoxic (natural or simulated altitude) and control (sea level or normoxic placebo) groups was meta-analyzed with a mixed model...
November 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29127759/is-irisin-the-new-player-in-exercise-induced-adaptations-or-not-a-2017-update
#8
REVIEW
Ioannis G Fatouros
Irisin is produced by a proteolytic cleavage of fibronectin type III domain-containing protein 5 (FNDC5) and has emerged as a potential mediator of exercise-induced energy metabolism. The purpose of this study was to review the results of studies that investigated irisin responses to acute and chronic exercise and provide an update. A comprehensive search in the databases of MEDLINE was performed (74 exercise studies). The focus of the analysis was on data concerning FNDC5 mRNA expression in skeletal muscle and circulating irisin concentration relatively to exercise mode, intensity, frequency and duration and the characteristics of the sample used...
November 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29118954/measuring-system-and-method-of-determining-the-adaptive-force
#9
Laura Schaefer, Marko Hoff, Frank Bittmann
The term Adaptive Force (AF) describes the capability of adaptation of the nerve-muscle-system to externally applied forces during isometric and eccentric muscle action. This ability plays an important role in real life motions as well as in sports. The focus of this paper is on the specific measurement method of this neuromuscular action, which can be seen as innovative. A measuring system based on the use of compressed air was constructed and evaluated for this neuromuscular function. It depends on the physical conditions of the subject, at which force level it deviates from the quasi isometric position and merges into eccentric muscle action...
June 27, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29111464/participant-reported-benefits-of-involvement-in-an-adaptive-sports-program-a-qualitative-study
#10
Emma C Lape, Jeffrey N Katz, Elena Losina, Hannah M Kerman, Marissa A Gedman, Cheri A Blauwet
BACKGROUND: While participation in adaptive sports offers numerous benefits for persons with disabilities, a substantial number of eligible persons do not take part. Previous studies have identified personal and environmental factors that promote or inhibit adaptive sports participation. However, these studies have considered a relatively narrow range of factors. OBJECTIVE: Use qualitative research techniques to identify novel factors that influence participation in a community-based adaptive sports program...
October 27, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29107321/multiscale-coordination-between-athletes-complexity-matching-in-ergometer-rowing
#11
Ruud J R Den Hartigh, Vivien Marmelat, Ralf F A Cox
Complex systems applications in human movement sciences have increased our understanding of emergent coordination patterns between athletes. In the current study, we take a novel step and propose that movement coordination between athletes is a multiscale phenomenon. Specifically, we investigated so-called "complexity matching" of performance measured in the context of rowing. Sixteen rowers participated in two sessions on rowing ergometers: One individual session of 550 strokes and one dyadic session of 550 strokes side-by-side with a team member...
October 26, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29105001/design-of-projectrun21-a-14-week-prospective-cohort-study-of-the-influence-of-running-experience-and-running-pace-on-running-related-injury-in-half-marathoners
#12
Camma Damsted, Erik Thorlund Parner, Henrik Sørensen, Laurent Malisoux, Rasmus Oestergaard Nielsen
BACKGROUND: Participation in half-marathon has been steeply increasing during the past decade. In line, a vast number of half-marathon running schedules has surfaced. Unfortunately, the injury incidence proportion for half-marathoners has been found to exceed 30% during 1-year follow-up. The majority of running-related injuries are suggested to develop as overuse injuries, which leads to injury if the cumulative training load over one or more training sessions exceeds the runners' load capacity for adaptive tissue repair...
November 6, 2017: Injury Epidemiology
https://www.readbyqxmd.com/read/29083464/initiating-exercise-interventions-to-promote-wellness-in-cancer-patients-and-survivors
#13
REVIEW
Anna L Schwartz, Hendrik Dirk de Heer, Jennifer W Bea
Exercise is associated with significant reductions in the recurrence and mortality rates of several common cancers. Cancer survivors who exercise can potentially benefit from reduced levels of fatigue, and improved quality of life, physical function, and body composition (ie, healthier ratios of lean body mass to fat mass). The amount of activity required to achieve protective effects is moderate (eg, walking 30 minutes per day at 2.5 miles per hour). However, many healthcare providers report a lack of awareness of the appropriate exercise recommendations across the phases of cancer survivorship, considerations regarding the timing of exercise interventions, and the ability to refer patients to exercise programs specifically aimed at cancer survivors...
October 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/29075501/could-current-factors-be-associated-with-retrospective-sports-injuries-in-brazilian-jiu-jitsu-a-cross-sectional-study
#14
Dayana das Graças, Letícia Nakamura, Fernando Sérgio Silva Barbosa, Paula Felippe Martinez, Filipe Abdalla Reis, Silvio Assis de Oliveira-Junior
BACKGROUND: Brazilian jiu-jitsu is characterized by musculoskeletal disorders and high occurrence of sports injuries. The present study was aimed to analyze some internal factors, as well as to describe occurrence and characteristics of retrospective musculoskeletal injuries in different age groups of Brazilian jiu-jitsu practitioners. METHODS: One hundred ninety-three Brazilian jiu-jitsu practitioners, which were divided into three age groups: Adolescent, Adult, and Master...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29075203/physiological-tendon-thickness-adaptation-in-adolescent-elite-athletes-a-longitudinal-study
#15
Michael Cassel, Konstantina Intziegianni, Lucie Risch, Steffen Müller, Tilman Engel, Frank Mayer
Increased Achilles (AT) and Patellar tendon (PT) thickness in adolescent athletes compared to non-athletes could be shown. However, it is unclear, if changes are of pathological or physiological origin due to training. The aim of this study was to determine physiological AT and PT thickness adaptation in adolescent elite athletes compared to non-athletes, considering sex and sport. In a longitudinal study design with two measurement days (M1/M2) within an interval of 3.2 ± 0.8 years, 131 healthy adolescent elite athletes (m/f: 90/41) out of 13 different sports and 24 recreationally active controls (m/f: 6/18) were included...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29075200/neuromuscular-adaptations-to-multimodal-injury-prevention-programs-in-youth-sports-a-systematic-review-with-meta-analysis-of-randomized-controlled-trials
#16
Oliver Faude, Roland Rössler, Erich J Petushek, Ralf Roth, Lukas Zahner, Lars Donath
Objective: Neuromuscular injury prevention programs (IPP) can reduce injury rate by about 40% in youth sport. Multimodal IPP include, for instance, balance, strength, power, and agility exercises. Our systematic review and meta-analysis aimed to evaluate the effects of multimodal IPP on neuromuscular performance in youth sports. Methods: We conducted a systematic literature search including selected search terms related to youth sports, injury prevention, and neuromuscular performance. Inclusion criteria were: (i) the study was a (cluster-)randomized controlled trial (RCT), and (ii) investigated healthy participants, up to 20 years of age and involved in organized sport, (iii) an intervention arm performing a multimodal IPP was compared to a control arm following a common training regime, and (iv) neuromuscular performance parameters (e...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29072036/oxidative-stress-lipid-peroxidation-indexes-and-antioxidant-vitamins-in-long-and-middle-distance-athletes-during-a-sport-season
#17
Diego Muñoz, Gema Barrientos, Javier Alves, Francisco J Grijota, Maria C Robles, Marcos Maynar
BACKGROUND: The main objective of this study was to observe any changes and possible adaptations produced in MDA and antioxidants vitamins on plasma and erythrocytes in endurance male athletes among an athletic season (12 months). METHODS: Twenty three long and middle distance male athletes participated in this study. Basal MDA on plasma and antioxidant vitamins in plasma and erythrocytes were measured at four moments along the season (0, 3, 6 and 9 months). Fatty acid concentrations in erythrocytes were obtained to determine lipid peroxidation indexes...
October 24, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29070484/epigenetics-regulates-gene-expression-patterns-of-skeletal-muscle-induced-by-physical-exercise
#18
Chen-Dong Liu, Lu Yang, Hong-Zhou Pu, Qiong Yang, Wen-Yao Huang, Xue Zhao, Li Zhu, Shun-Hua Zhang
As it is well known, proper exercise benefits our mind and body, especially the skeletal muscle. Exercise increases the capacity of muscle metabolism, enhances the biological function of mitochondria, regulates the transformation of muscle fiber types and increases the muscle power. In recent years, more and more researches show that epigenetic regulation plays an important role in strengthening the muscle, and these studies mainly include DNA methylation, histone modification, and regulation of miRNA expression...
October 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/29066604/the-control-of-ventilation-during-exercise-a-lesson-in-critical-thinking
#19
Richard M Bruce
Learning the basic competencies of critical thinking are very important in the education of any young scientist, and teachers must be prepared to help students develop a valuable set of analytic tools. In my experience, this is best achieved by encouraging students to study areas with little scientific consensus, such as the control mechanisms of the exercise ventilatory response, as it can allow greater objectivity when evaluating evidence, while also giving students the freedom to think independently and problem solve...
December 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/29060806/estimation-of-tibialis-anterior-muscle-stiffness-during-the-swing-phase-of-walking-with-various-footwear
#20
Takanori Uchiyama, Yutaka Hori, Kenta Suzuki
The current study examined stiffness in the tibialis anterior muscle during the swing phase of walking while wearing various footwear. Seven healthy young men participated in this study. Participants were instructed to walk on a treadmill at 3 km/h while wearing sports shoes, slippers, or slippers with belts. The common peroneal nerve was electrically stimulated every two steps at toe-off during walking. Mechanomyograms (MMGs), electromyograms, and ankle angle were measured. Evoked MMG was extracted using a Kalman filter and subtraction of walking acceleration...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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