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https://www.readbyqxmd.com/read/29340251/the-relationships-between-exercise-and-affective-states-a-naturalistic-longitudinal-study-of-recreational-runners
#1
Tim Bonham, Gillian V Pepper, Daniel Nettle
Background: Although people generally feel more positive and more energetic in the aftermath of exercise than before, longitudinal research on how exercise relates to within-person fluctuations in affect over the course of everyday life is still relatively limited. One constraint on doing such research is the need to provide participants with accelerometers to objectively record their exercise, and pagers to capture affective reports. Aims: We aimed to develop a methodology for studying affect and exercise using only technology that participants already possess, namely GPS running watches and smartphones...
2018: PeerJ
https://www.readbyqxmd.com/read/29337832/comparison-of-step-by-step-kinematics-in-repeated-30m-sprints-in-female-soccer-players
#2
Roland van den Tillaar
The aim of this study was to compare kinematics in repeated 30m sprints in female soccer players. Seventeen subjects performed seven 30m sprints every 30s in one session. Kinematics were measured with an infrared contact mat and laser gun, and running times with an electronic timing device. The main findings were that sprint times increased in the repeated sprint ability test. The main changes in kinematics during the repeated sprint ability test were increased contact time and decreased step frequency, while no change in step length was observed...
January 4, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29336959/psychological-attributes-of-ultramarathoners
#3
Katherine Buck, Jack Spittler, Alex Reed, Morteza Khodaee
INTRODUCTION: As the popularity of ultramarathon participation increases, there still exists a lack of understanding of the unique psychological characteristics of ultramarathon runners. The current study sought to investigate some of the psychological and behavioral factors that are involved in ultramarathon running. METHODS: We obtained information from participants of the Bear Chase Trail Race via an online survey. This race is a single-day, multidistance race consisting of a 10 k, half marathon, 50 k, 50 mi, and 100 k run in Lakewood, Colorado, at a base altitude of 1680 m with total altitude in climbs ranging from 663 to 2591 m...
January 11, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29336211/the-effect-of-altering-loading-distance-on-skeleton-start-performance-is-higher-pre-load-velocity-always-beneficial
#4
Steffi L Colyer, Keith A Stokes, James L J Bilzon, Danny Holdcroft, Aki I T Salo
Athletes initiating skeleton runs differ in the number of steps taken before loading the sled. We aimed to understand how experimentally modifying loading distance influenced sled velocity and overall start performance. Ten athletes (five elite, five talent; 67% of all national athletes) underwent two to four sessions, consisting of two dry-land push-starts in each of three conditions (preferred, long and short loading distances). A magnet encoder on the sled wheel provided velocity profiles and the overall performance measure (sled acceleration index)...
January 16, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29332665/performance-outcomes-after-medial-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-positional-players
#5
John P Begly, Michael S Guss, Theodore S Wolfson, Siddharth A Mahure, Andrew S Rokito, Laith M Jazrawi
BACKGROUND: We sought to determine whether professional baseball positional players who underwent medial ulnar collateral ligament (MUCL) reconstruction demonstrate decreases in performance on return to competition compared with preoperative performance metrics and their control-matched peers. METHODS: Data for 35 Major League Baseball positional players who underwent MUCL reconstruction during 31 seasons were obtained. Twenty-six players met inclusion criteria...
February 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29332470/a-school-based-neuromuscular-training-program-and-sport-related-injury-incidence-a-prospective-randomized-controlled-clinical-trial
#6
Kim D Barber Foss, Staci Thomas, Jane C Khoury, Gregory D Myer, Timothy E Hewett
CONTEXT:   An estimated 40 million school-aged children (age range = 5-18 years) participate annually in sports in the United States, generating approximately 4 million sport-related injuries and requiring 2.6 million emergency department visits at a cost of nearly $2 billion. OBJECTIVE:   To determine the effects of a school-based neuromuscular training (NMT) program on sport-related injury incidence across 3 sports at the high school and middle school levels, focusing particularly on knee and ankle injuries...
January 13, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29325455/influence-of-middle-distance-running-on-muscular-micro-rnas
#7
Elisa Danese, Marco Benati, Fabian Sanchis-Gomar, Cantor Tarperi, Gian Luca Salvagno, Elisa Paviati, Martina Montagnana, Federico Schena, Giuseppe Lippi
A specific subset of micro RNAs (miRs), including miR-133 and miR-206, is specifically expressed in muscle tissue, so that they are currently defined as muscular miRs (myomiRs). To further elucidate the role of myomiRs in muscle biology, we measured miR-133a and miR-206 in plasma of 28 middle-age recreational athletes. The study population consisted of 28 middle aged, recreation athletes (11 women and 17 men; mean age, 46 years) who completed a 21.1 km, half-marathon. The plasma concentration of miR-133a and miR-206, the serum concentration of creatine kinase (CK) and high-sensitivity (HS) cardiac troponin T (cTnT), as well as capillary lactate, were measured before and immediately after the run...
January 11, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29319584/physiological-responses-to-overdressing-and-exercise-heat-stress-in-trained-runners
#8
Brett R Ely, Laurie A Blanchard, Jared R Steele, Michael A Francisco, Samuel N Cheuvront, Christopher T Minson
Heat acclimation is the best strategy to improve performance in a hot environment. Many athletes seeking the benefits of heat acclimation lack access to a hot environment for exercise, and thus rely on over-dressing to simulate environmental heat stress. It is currently unknown whether this approach produces the requisite thermoregulatory strain necessary for heat acclimation in trained men and women. PURPOSE: To compare physiological and cellular responses to exercise in a hot environment (HOT; 40°C, 30%rh) with minimal clothing (clo= 0...
January 9, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29300214/no-effect-of-muscle-stretching-within-a-full-dynamic-warm-up-on-athletic-performance
#9
Anthony J Blazevich, Nicholas D Gill, Thue Kvorning, Anthony D Kay, Alvin Goh, Bradley Hilton, Eric J Drinkwater, David G Behm
PURPOSE: To examine the effects of static and dynamic stretching routines performed as part of a comprehensive warm-up on flexibility and sprint running, jumping and change of direction tests in team sport athletes. METHODS: A randomized, controlled, cross-over study design with experimenter blinding was conducted. On separate days, 20 male team sport athletes completed a comprehensive warm-up routine. After a low-intensity warm-up a 5-s static stretch (5S), 30-s static stretch (30S; 3×10-s stretches), 5-repetition (per muscle group) dynamic stretch (DYN) or no stretch (NS) protocol was completed; stretches were done on 7 lower body and 2 upper body regions...
January 4, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29298672/no-association-between-actn3-r577x-and-ace-i-d-polymorphisms-and-endurance-running-times-in-698-caucasian-athletes
#10
Ioannis D Papadimitriou, Sarah J Lockey, Sarah Voisin, Adam J Herbert, Fleur Garton, Peter J Houweling, Pawel Cieszczyk, Agnieszka Maciejewska-Skrendo, Marek Sawczuk, Myosotis Massidda, Carla Maria Calò, Irina V Astratenkova, Anastasia Kouvatsi, Anastasiya M Druzhevskaya, Macsue Jacques, Ildus I Ahmetov, Georgina K Stebbings, Shane Heffernan, Stephen H Day, Robert Erskine, Charles Pedlar, Courtney Kipps, Kathryn N North, Alun G Williams, Nir Eynon
BACKGROUND: Studies investigating associations between ACTN3 R577X and ACE I/D genotypes and endurance athletic status have been limited by small sample sizes from mixed sport disciplines and lack quantitative measures of performance. AIM: To examine the association between ACTN3 R577X and ACE I/D genotypes and best personal running times in a large homogeneous cohort of endurance runners. METHODS: We collected a total of 1064 personal best 1500, 3000, 5000 m and marathon running times of 698 male and female Caucasian endurance athletes from six countries (Australia, Greece, Italy, Poland, Russia and UK)...
January 3, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29288436/the-relationships-between-internal-and-external-measures-of-training-load-and-intensity-in-team-sports-a-meta-analysis
#11
REVIEW
Shaun J McLaren, Tom W Macpherson, Aaron J Coutts, Christopher Hurst, Iain R Spears, Matthew Weston
BACKGROUND: The associations between internal and external measures of training load and intensity are important in understanding the training process and the validity of specific internal measures. OBJECTIVES: We aimed to provide meta-analytic estimates of the relationships, as determined by a correlation coefficient, between internal and external measures of load and intensity during team-sport training and competition. A further aim was to examine the moderating effects of training mode on these relationships...
December 29, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29279574/sports-drink-consumption-and-dental-erosion-among-amateur-runners
#12
Leonardo S Antunes, Lais Veiga, Victor S Nery, Caio C Nery, Lívia A Antunes
This cross-sectional study assessed the prevalence and potential risk factors for dental erosion in amateur athletes at running events. After a sample calculation, 108 runners from the state of Rio de Janeiro, Brazil, were selected and examined for dental wear by a single trained and calibrated evaluator (kappa = 1.00). To identify risk factors, the runners were interviewed by using a standardized, semi-structured questionnaire. The average (SD) age of the runners was 34.2 (11.45), and the prevalence of dental erosion was 19...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29276543/an-investigation-of-home-advantage-in-the-summer-paralympic-games
#13
Darryl Wilson, Girish Ramchandani
Purpose: There is a paucity of home advantage research set in the context of para-sport events. It is this gap in the knowledge that this paper addresses by investigating the prevalence and size of home advantage in the Summer Paralympic Games. Methods: Using a standardised measure of success, we compared the performances of nations when competing at home with their own performances away from home in the competition between 1960 and 2016. Both country-level and individual sport-level analyses were conducted for this time frame...
2017: Sport Sciences for Health
https://www.readbyqxmd.com/read/29262272/effects-of-carbohydrate-mouth-rinse-and-caffeine-on-high-intensity-interval-running-in-a-fed-state
#14
Simon Devenney, Shane Mangan, Marcus Shortall, Kieran Collins
The current study aims to identify if mouth rinsing with a 6% carbohydrate solution (CMR) and mouth rinsing and ingestion of caffeine (CMR+CAFF) can affect exercise performance during steady state (SS) running and high intensity intervals (HIT) in comparison to a 0% control solution (PLA), when in a fed state. Eight recreationally trained males completed three trials (CMR, CMR + CAFF, and PLA) of 45-min SS run and a HIT protocol (90% peak treadmill velocity) until fatigue in a double blinded, repeated measures study...
December 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29259560/the-energetics-during-the-world-s-most-challenging-mountain-ultra-marathon-a-case-study-at-the-tor-des-geants%C3%A2
#15
Aldo Savoldelli, Alessandro Fornasiero, Pietro Trabucchi, Eloisa Limonta, Antonio La Torre, Francis Degache, Barbara Pellegrini, Grégoire P Millet, Gianluca Vernillo, Federico Schena
Purpose: To provide insights into the energy requirements as well as the physiological adaptations of an experienced 50-year-old ultra-marathon male athlete during the world's most challenging mountain ultra-marathon (MUM). Methods: The international race supporting the study was the Tor des Geants®, characterized by 330 km with +24,000 m D+ to be covered within 150 h. Before the MUM, we assessed the peak oxygen uptake ([Formula: see text]) by means of an incremental graded running test. During the MUM we monitored six ascents (once per race day) with a portable gas analyzer, a GPS and a finger pulse oximeter...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29250458/comparison-of-psychological-response-between-concussion-and-musculoskeletal-injury-in-collegiate-athletes
#16
Samantha Turner, Jody Langdon, George Shaver, Victoria Graham, Kelly Naugle, Thomas Buckley
The psychological response to musculoskeletal injuries has been well documented, however, research on the psychological response to concussion is limited. The Profile of Mood States (POMS) and the State-Trait Anxiety Inventory (STAI) have recently been used to assess the psychological recovery of concussions. Although some studies indicate that psychological response is different for musculoskeletal injuries and concussion, there is currently not enough information to indicate this difference occurs at specific clinical milestones...
2017: Sport, Exercise, and Performance Psychology
https://www.readbyqxmd.com/read/29249454/biomechanical-consequences-of-running-with-deep-core-muscle-weakness
#17
Margaret E Raabe, Ajit M W Chaudhari
The deep core muscles are often neglected or improperly trained in athletes. Improper function of this musculature may lead to abnormal spinal loading, muscle strain, or injury to spinal structures, all of which have been associated with increased low back pain (LBP) risk. The purpose of this study was to identify potential strategies used to compensate for weakness of the deep core musculature during running and to identify accompanying changes in compressive and shear spinal loads. Kinematically-driven simulations of overground running were created for eight healthy young adults in OpenSim at increasing levels of deep core muscle weakness...
December 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29248664/focal-fibrosis-in-the-endurance%C3%A2-athlete-s%C3%A2-heart-running-scarred-or-running-scared
#18
EDITORIAL
Aaron L Baggish
No abstract text is available yet for this article.
December 8, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29248350/effectiveness-of-kinesiology-tape-on-sports-performance-abilities-in-athletes-a-systematic-review
#19
REVIEW
Jennifer C Reneker, Lisa Latham, Ryan McGlawn, Matthew R Reneker
OBJECTIVE: Establish the effectiveness of kinesiology tape (KT) on sports performance abilities compared to that of other tapes or no tape with consideration to the application methodology, timeframe, and outcome measurement. METHODS: PubMed, Embase, and PEDro databases were systematically searched. The following inclusion criteria were applied: 1) participants were healthy athletes, 2) compared any brand of dynamic KT to other types of tape (sham or therapeutic) and/or no tape, 3) measured some construct of functional sports performance, 4) involved randomization...
October 9, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29239986/practical-model-of-low-volume-paddling-based-sprint-interval-training-improves-aerobic-and-anaerobic-performances-in-professional-female-canoe-polo-athletes
#20
Mohsen Sheykhlouvand, Erfan Khalili, Mohammadali Gharaat, Hamid Arazi, Mousa Khalafi, Bahman Tarverdizadeh
Brief, intense exercise training employing running and cycling as exercise interventions may induce aerobic and anaerobic adaptations in athletes from wide range of sports. However, this has not been studied extensively for those sports in which the upper-body is predominantly involved. Our purpose was to examine the effects of kayak paddling-based sprint interval training (SIT) on cardiorespiratory fitness and anaerobic performance. 16 professional female canoe polo athletes (age = 27.6 ± 1.9 years; height = 165...
December 11, 2017: Journal of Strength and Conditioning Research
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