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https://www.readbyqxmd.com/read/28538304/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#1
Ben L Schram, Wayne A Hing, Mike Climstein, James W Furness
Schram, BL, Hing, WA, Climstein, M, and Furness, JW. A performance analysis of a stand-up paddle board marathon race. J Strength Cond Res 31(6): 1552-1556, 2017-Stand-up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national-level SUP marathon race...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538297/effect-of-game-design-goal-type-and-player-numbers-on-the-physiological-and-physical-demands-of-hurling-specific-small-sided-games
#2
Shane Malone, Kieran D Collins
Malone, S and Collins, K. Effect of game design, goal type, and player numbers on the physiological and physical demands of hurling-specific small-sided games. J Strength Cond Res 31(6): 1493-1499, 2017-The current study examined the effect that game design modification, goal type, and player numbers on the running performance and physiological demands of small-sided hurling games (SSG). Forty-eight hurling players (age, 25.5 ± 3.2 years; height, 178.9 ± 3.2 cm; body mass, 78.5 ± 4.5 kg) performed 4 types of SSG (possession [P], normal play [NP], regular goals [RG] and small goals [SG]) in 4-a-side, 5-a-side, and 6-a-side formats...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28535726/the-effects-of-arousal-reappraisal-on-stress-responses-performance-and-attention
#3
Nadine Sammy, Paul A Anstiss, Lee J Moore, Paul Freeman, Mark R Wilson, Samuel J Vine
BACKGROUND AND OBJECTIVES: This study examined the effects of arousal reappraisal on cardiovascular responses, demand and resource evaluations, self-confidence, performance and attention under pressurized conditions. A recent study by Moore et al. [2015. Reappraising threat: How to optimize performance under pressure. Journal of Sport and Exercise Psychology, 37(3), 339-343. doi: 10.1123/jsep.2014-0186 ] suggested that arousal reappraisal is beneficial to the promotion of challenge states and leads to improvements in single-trial performance...
May 23, 2017: Anxiety, Stress, and Coping
https://www.readbyqxmd.com/read/28535363/elite-status-maintained-a-12-year-physiological-and-performance-follow-up-of-two-olympic-champion-rowers
#4
Pavle Mikulic, Nikola Bralic
This case study reports the results of a 12-year (2005-2016) follow-up study of two Olympic champion rowers. The rowers were prospective athletes at the junior level when the study began, and we monitored their relevant physiological and performance data annually. Our findings indicated that their V̇O2max gradually increased up to about 22 years of age and leveled off at a value of approximately 7 l·min(-1) with minimal fluctuations thereafter. However, the variables that directly influence the V̇O2max changed...
May 23, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28530485/energy-requirement-assessment-in-japanese-table-tennis-players-using-the-doubly-labeled-water-method
#5
Hiroyuki Sagayama, Genki Hamaguchi, Makiko Toguchi, Mamiko Ichikawa, Yosuke Yamada, Naoyuki Ebine, Yasuki Higaki, Hiroaki Tanaka
Total daily energy expenditure (TEE) and physical activity level (PAL) are important for adequate nutritional management in athletes. The PAL of table tennis has been estimated to about 2.0: it is categorized as a moderate-activity sport (4.0 metabolic equivalents [METs]) in the Compendium of Physical Activities. However, modern table tennis makes high physiological demands. The aims of the present study were to examine (1) TEE and PAL of competitive table tennis players and (2) the physiological demands of various types of table tennis practice...
May 22, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28515841/demands-of-simulated-commuting-using-an-electrically-assisted-bicycle
#6
D Taylor LA Salle, Robert Shute, Matthew Heesch, Dustin Slivka
The American College of Sports Medicine (ACSM) recommends adults participate in weekly aerobic activity for a minimum of 30 minutes moderate intensity exercise 5 days per week or 20 minutes of vigorous activity 3 days per week. The electrically assisted bicycle may help individuals achieve the ACSM's aerobic recommendations and introduce inactive individuals to physical activity. To compare the physiological requirements of riding a bicycle with electric pedal assist versus non-assist among healthy active young adults...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28513270/physiological-and-performance-measures-for-baseline-concussion-assessment
#7
Danielle M Dobney, Scott G Thomas, Tim Taha, Michelle Keightley
CONTEXT: Baseline testing is a common strategy for concussion assessment and management. Research continues to evaluate novel measures for potential to improve baseline testing methods. OBJECTIVES: The primary objective was to; 1) determine the feasibility of including physiological, neuromuscular and mood measures as part of baseline concussion testing protocol, 2) describe typical values in a varsity athlete sample, and 3) estimate the influence of concussion history on these baseline measures...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28512432/whole-body-cryotherapy-in-athletes-from-therapy-to-stimulation-an-updated-review-of-the-literature
#8
REVIEW
Giovanni Lombardi, Ewa Ziemann, Giuseppe Banfi
Nowadays, whole-body cryotherapy is a medical physical treatment widely used in sports medicine. Recovery from injuries (e.g., trauma, overuse) and after-season recovery are the main purposes for application. However, the most recent studies confirmed the anti-inflammatory, anti-analgesic, and anti-oxidant effects of this therapy by highlighting the underlying physiological responses. In addition to its therapeutic effects, whole-body cryotherapy has been demonstrated to be a preventive strategy against the deleterious effects of exercise-induced inflammation and soreness...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28507165/reliability-and-validity-of-an-agility-like-incremental-exercise-test-with-multidirectional-change-of-direction-movements-in-response-to-a-visual-stimulus
#9
Dennis-Peter Born, Philipp Kunz, Billy Sperlich
The aim of the study was to evaluate the reliability and validity of cardiorespiratory and metabolic variables, that is, peak oxygen uptake (V'O2peak) and heart rate (HRpeak), obtained from an agility-like incremental exercise test for team sport athletes. To investigate the test-retest reliability, 25 team sport athletes (age: 22 ± 3 years, body mass: 75 ± 7 kg, height: 182 ± 6 cm) performed an agility-like incremental exercise test on the SpeedCourt (SC) system incorporating multidirectional change-of-direction (COD) movements twice...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28504570/saliva-a-reliable-sample-matrix-in-bioanalytics
#10
Michael Gröschl
Saliva is gaining increasing attention as a bioanalytical sample matrix. Mostly because of the easy and noninvasive collection, it is not only beneficial in endocrinological and behavioral science, but also in pediatrics. Saliva also has the advantage of being the only body fluid which can be collected even during physical exercise, for example, during sportive activities, and there are physiological characteristics that make it superior to serum/plasma or urine for specific scientific questions. This review provides an insight into the physiology of saliva formation, explaining how certain compounds enter this bodily fluid, and gives advice for collection, storage and analytical methods...
May 15, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28496410/clinical-applications-of-iso-inertial-eccentric-overload-yoyo%C3%A2-resistance-exercise
#11
REVIEW
Per A Tesch, Rodrigo Fernandez-Gonzalo, Tommy R Lundberg
In the quest for a viable non-gravity dependent method to "lift weights" in space, our laboratory introduced iso-inertial resistance (YoYo™) exercise using spinning flywheel(s), more than 25 years ago. After being thoroughly tested in individuals subjected to various established spaceflight analogs, a multi-mode YoYo™ exercise apparatus was eventually installed on the International Space Station in 2009. The method, applicable to any muscle group, provides accommodated resistance and optimal muscle loading through the full range of motion of concentric actions, and brief episodes of eccentric overload...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28493061/chronotype-physical-activity-and-sport-performance-a-systematic-review
#12
REVIEW
Jacopo Antonino Vitale, Andi Weydahl
BACKGROUND: Many variables related to sport have been shown to have circadian rhythms. Chronotype is the expression of circadian rhythmicity in an individual, and three categories of chronotype are defined: morning types (M-types), evening types (E-types), and neither types (N-types). M-types show earlier peaks of several psychophysiological variables during the day than E-types. The effect of chronotype on athletic performance has not been extensively investigated. OBJECTIVE: The objective of the present review was to study the effect of chronotype on athletic performance and the psychophysiological responses to physical activity...
May 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28488921/sex-differences-in-world-record-performance-the-influence-of-sport-discipline-and-competition-duration
#13
Øyvind Sandbakk, Guro Strøm Solli, Hans-Christer Holmberg
In the present review, we summarize scientific knowledge concerning sex differences in world record performance and the influence of sport discipline and competition duration. In addition, we discuss how physiological factors relate to sex dimorphism. While cultural factors played a major role in the rapid improvement of performance of women relative to men up until the 1990's, sex differences between the world's best athletes in most events have remained relatively stable at approximately 8-12%. The exceptions are events in which upper-body power is a major contributor, where this difference is more than 15%, and ultra-endurance swimming, where the gap is now less than 5%...
May 10, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28480685/hormonal-responses-to-a-rugby-match-a-brief-review
#14
Maamer Slimani, Foued Cheour, Wassim Moalla, Julien S Baker
BACKGROUND: Rugby is an intermittent team sport, commonly stressing the endocrine system by physiological efforts. However, no review has synthesized the available literature on the hormonal responses to a rugby match. The purpose of this review was to examine the hormonal responses to a rugby match. Mediator and moderator variables for the rugby match- hormonal responses relationship were also discussed. METHODS: The systematic search was conducted using different databases and according to the Population/Intervention or Exposure/Comparison/Outcome(s) [PICO] criteria...
May 5, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28474874/poincar%C3%A3-plot-analysis-of-ultra-short-term-heart-rate-variability-during-recovery-from-exercise-in-physically-active-men
#15
Rayana L Gomes, Luiz C Marques Vanderlei, David M Garner, Milana D Ramos Santana, Luiz C de Abreu, Vitor E Valenti
BACKGROUND: Recently there has been increasing interest in the study of ultra-short- term heart rate variability (HRV) in sports performance and exercise physiology. In order to improve standardization of this specific analysis, we evaluated the ultra-short-term HRV analysis through SD1Poincaré index to identify exercise induced responses. METHODS: We investigated 35 physically active men aged between 18 and 35 years old. Volunteers performed physical exercise on treadmill with intensity of 6...
April 26, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28462577/comparison-of-physiological-measures-obtained-using-the-lode-excalibur-sport-cycle-ergometer-and-the-tacx-i-magic-home-training-device
#16
Kevin L Merry
AIM: The aim of this study was to compare several physiological measures obtained using a criterion cycle ergometer (Lode Excalibur Sport) and a commercially available home training device (Tacx i--Magic). METHODS: In a randomised, counterbalanced order, eight male amateur club level cyclists (age 30.4 ± 3.5 years, body mass 75.8 ± 8.1 kg, stature 1.75 ± 0.06 m) completed a submaximal and maximal incremental test on both the Lode Excalibur Sport and the Tacx i-Magic...
April 28, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28459290/injury-patterns-physiological-profile-and-performance-in-university-rugby-union
#17
Shane Ball, Mark Halaki, Tristan Sharp, Rhonda Orr
OBJECTIVES: Rugby union is a physically demanding collision sport with high injury rates. There is a common perception that higher training loads result in greater injury risk in field-based sports. This study aims to determine injury, anthropometric and physical performance characteristics in junior rugby union players and investigate the interaction between training load and injury across a competitive season. DESIGN: Prospective cohort study. METHODS: Fifty-one players (age 19...
May 1, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28457670/implications-of-altered-autonomic-control-on-sports-performance-in-athletes-with-spinal-cord-injury
#18
REVIEW
Sebastian Cruz, Cheri A Blauwet
It is well known that athletes with spinal cord injury (SCI) may experience altered autonomic physiology that impacts their exercise capacity and sports performance. This is particularly relevant given the ever-increasing number of individuals with SCI who are actively engaged in sports at all levels, from community-based adaptive sports to elite Paralympic competitions. As such, the purpose of this article is to review the present literature regarding the implications of altered autonomic control on the safety and performance of athletes with SCI...
April 4, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28456219/lactate-threshold-by-muscle-electrical-impedance-in-professional-rowers
#19
B Jotta, A B B Coutinho, A V Pino, M N Souza
Lactate threshold (LT) is one of the physiological parameters usually used in rowing sport training prescription because it indicates the transitions from aerobic to anaerobic metabolism. Assessment of LT is classically based on a series of values of blood lactate concentrations obtained during progressive exercise tests and thus has an invasive aspect. The feasibility of noninvasive LT estimative through bioelectrical impedance spectroscopy (BIS) data collected in thigh muscles during rowing ergometer exercise tests was investigated...
April 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28455363/what-is-the-physiological-time-to-recovery-after-concussion-systematic-review
#20
REVIEW
Joshua Kamins, Erin Bigler, Tracey Covassin, Luke Henry, Simon Kemp, John J Leddy, Andrew Mayer, Michael McCrea, Mayumi Prins, Kathryn J Schneider, Tamara C Valovich McLeod, Roger Zemek, Christopher C Giza
AIM OR OBJECTIVE: The aim of this study is to consolidate studies of physiological measures following sport-related concussion (SRC) to determine if a time course of postinjury altered neurobiology can be outlined. This biological time course was considered with respect to clinically relevant outcomes such as vulnerability to repeat injury and safe timing of return to physical contact risk. DESIGN: Systematic review. DATA SOURCES: PubMed, CINAHL, Cochrane Central, PsychINFO...
April 28, 2017: British Journal of Sports Medicine
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