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https://www.readbyqxmd.com/read/28420637/gps-urged-to-be-cautious-when-assessing-patients-fitness-for-endurance-sports
#1
Gareth Iacobucci
No abstract text is available yet for this article.
April 18, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28377134/rule-modification-in-junior-sport-does-it-create-differences-in-player-movement
#2
Paul B Gastin, Matthew D Allan, Kylie Bellesini, Michael Spittle
OBJECTIVES: To determine the effects of rule modification on player movement during matchplay in junior Australian football (AF). DESIGN: Quasi-experimental study design. METHODS: Time-motion analysis was used to record variables pertaining to player movement including total distance covered, high-speed running (HSR) distance (>14.4km/h) and HSR efforts. GPS data obtained from 145 players (7-12 years) were analysed across four junior AF leagues and three age group combinations (U8/U9, U9/U10 and U11/U12)...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28255567/an-ecological-study-of-anterior-cruciate-ligament-reconstruction-part-2-functional-performance-tests-correlate-with-return-to-sport-outcomes
#3
Timothy M McGrath, Gordon Waddington, Jennie M Scarvell, Nick Ball, Rob Creer, Kevin Woods, Damian Smith, Roger Adams
BACKGROUND: Additional high-quality prospective studies are needed to better define the objective criteria used in relation to return-to-sport decisions after anterior cruciate ligament (ACL) reconstruction in active populations. PURPOSE: To investigate prospectively the relationship between functional performance test results at 24 weeks postoperative and return-to-sport activity (Tegner activity score) at 12 and 24 months, respectively, after synthetic (ligament advanced reinforcement system [LARS]) and autograft (doubled semitendinosus/gracilis [2ST/2GR]) ACL reconstructions...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28253057/sport-specific-outdoor-rehabilitation-in-a-group-setting-do-the-intentions-match-actual-training-load
#4
Jeroen de Bruijn, Henk van der Worp, Mark Korte, Astrid J de Vries, Rick Nijland, Michel S Brink
CONTEXT: Previous research has shown a weak relationship between intended and actual training load in various sports. Due to variety in group and content, this relationship is expected to be even weaker during group rehabilitation. OBJECTIVE: The goal of our study was to examine the relationship between intended and actual training load during sport-specific rehabilitation in a group setting. DESIGN: Observational study. SETTING: We performed this study during three outdoor rehabilitation sessions...
March 2, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28246070/accuracy-and-adoption-of-wearable-technology-used-by-active-citizens-a-marathon-event-field-study
#5
Monika Pobiruchin, Julian Suleder, Richard Zowalla, Martin Wiesner
BACKGROUND: Today, runners use wearable technology such as global positioning system (GPS)-enabled sport watches to track and optimize their training activities, for example, when participating in a road race event. For this purpose, an increasing amount of low-priced, consumer-oriented wearable devices are available. However, the variety of such devices is overwhelming. It is unclear which devices are used by active, healthy citizens and whether they can provide accurate tracking results in a diverse study population...
February 28, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28195980/importance-reliability-and-usefulness-of-acceleration-measures-in-team-sports
#6
Jace A Delaney, Cloe J Cummins, Heidi R Thornton, Grant M Duthie
The ability to accelerate, decelerate and change direction efficiently is imperative to successful team-sports performance. Traditional intensity-based thresholds for acceleration and deceleration may be inappropriate for time-series data, and have been shown to exhibit poor reliability, suggesting other techniques may be preferable. This study assessed movement data from one professional rugby league team throughout two full seasons and one pre-season period. Using both 5 Hz and 10 Hz global positioning systems (GPS) units, a range of acceleration-based variables were evaluated for their inter-unit reliability, ability to discriminate between positions, and associations with perceived muscle soreness...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28167878/commercial-separation-systems-designed-for-preparation-of-platelet-rich-plasma-yield-differences-in-cellular-composition
#7
Ryan M Degen, Johnathan A Bernard, Kristin S Oliver, Joshua S Dines
BACKGROUND: The role of platelet-rich plasma (PRP) in the treatment of sport-related injuries is unclear, largely due to the heterogeneity of clinical results. This may relate to compositional differences in PRP from different separation systems. QUESTIONS/PURPOSES: This study aims to compare the composition of PRP produced with five different commercially available systems, focusing on cellular concentrations and pH. METHODS: Seven donors (41 ± 12 years) provided blood for PRP preparation using five systems (Arthrex Angel, Emcyte Genesis CS, Arteriocyte Magellan, Harvest SmartPrep, and Biomet GPS III)...
February 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28155786/-general-practitioners-and-physical-activity-counselling-from-evidence-to-practice-contingencies
#8
Géraldine Bloy, Laetitia Moussard Philippon, Laurent Rigal
<ce:para>Introduction: One half of the French population has an insufficient level of physical activity. General Practitioners are consi-dered to be well-placed to promote physical activity. This article analyses how they address this issue.</ce:para> <ce:para>Methods: Semi-structured interviews were conducted on preventive care with 99 GPs from the Parisian area. Their approach to physical activity counselling was discussed in greater detail with 20 GPs. The analysis identified the diverse rationales and approaches of GPs in a grounded theory perspective...
June 8, 2016: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28149425/the-integration-of-internal-and-external-training-load-metrics-in-hurling
#9
Shane Malone, Dominic Doran, Ibrahim Akubat, Kieran Collins
The current study aimed to assess the relationship between the hurling player's fitness profile and integrated training load (TL) metrics. Twenty-five hurling players performed treadmill testing for VO2max, the speed at blood lactate concentrations of 2 mmol•L-1 (vLT) and 4 mmol•L-1 (vOBLA) and the heart rate-blood lactate profile for calculation of individual training impulse (iTRIMP). The total distance (TD; m), high speed distance (HSD; m) and sprint distance (SD; m) covered were measured using GPS technology (4-Hz, VX Sport, Lower Hutt, New Zealand) which allowed for the measurement of the external TL...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28051343/methodological-considerations-when-quantifying-high-intensity-efforts-in-team-sport-using-global-positioning-system-technology
#10
Matthew C Varley, Arne Jaspers, Werner F Helsen, James J Malone
Purpose Sprints and accelerations are popular performance indicators in applied sport. The methods used to define these efforts using athlete tracking technology could affect the number of efforts reported. The study aimed to determine the influence of different techniques and settings for detecting high-intensity efforts using Global Positioning System (GPS) data. Methods Velocity and acceleration data of a professional soccer match was recorded via 10-Hz GPS. Velocity data was filtered using either a median or exponential filter...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28039429/limited-potential-of-genetic-predisposition-scores-to-predict-muscle-mass-and-strength-performance-in-flemish-caucasians-between-19-73-years-of-age
#11
Ruben Charlier, Maarten Caspers, Sara Knaeps, Evelien Mertens, Diether Lambrechts, Johan Lefevre, Martine Thomis
Since both muscle mass and strength performance are polygenic in nature, the current study compared four Genetic Predisposition Scores (GPS) in their ability to predict these phenotypes. Data were gathered within the framework of the first generation Flemish Policy Research Centre 'Sport, Physical Activity and Health' (2002-2004). Results are based on muscle characteristics data of 565 Flemish Caucasians (19-73 yr, 365 men). Skeletal muscle mass (SMM) was determined using bioelectrical impedance. The Biodex dynamometer was used to measure isometric (PTstatic120°) and isokinetic strength (PTdynamic60° and PTdynamic240°), ballistic movement speed (S20%) and muscular endurance (Work) of the knee extensors...
December 30, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/28028894/attacking-22-entries-in-rugby-union-running-demands-and-differences-between-successful-and-unsuccessful-entries
#12
P Tierney, D P Tobin, C Blake, E Delahunt
Global Positioning System (GPS) technology is commonly utilized in team sports, including rugby union. It has been used to describe the average running demands of rugby union. This has afforded an enhanced understanding of the physical fitness requirements for players. However, research in team sports has suggested that training players relative to average demands may underprepare them for certain scenarios within the game. To date, no research has investigated the running demands of attacking 22 entries in rugby union...
December 28, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27806014/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#13
AProf Ben Schram, Prof Wayne Hing, AProf Mike Climstein, AProf James Furness
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. Ten elite SUP athletes (6 male, 4 female) were recruited from the Stand Up Paddle Surfing Association of Australia to have their race performance in the Australian Titles analyzed...
October 28, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27736244/unpacking-the-black-box-applications-and-considerations-for-using-gps-devices-in-sport
#14
James J Malone, Ric Lovell, Matthew C Varley, Aaron J Coutts
Athlete tracking devices that include global positioning system (GPS) and micro electrical mechanical system (MEMS) components are now commonplace in sport research and practice. These devices provide large amounts of data that are used to inform decision-making on athlete training and performance. However, the data obtained from these devices are often provided without clear explanation of how these metrics are obtained. At present, there is no clear consensus regarding how these data should be handled and reported in a sport context...
October 13, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27618472/impact-of-fatigue-on-positional-movements-during-professional-rugby-union-match-play
#15
Jason C Tee, Mike I Lambert, Yoga Coopoo
PURPOSE: In team sports, fatigue is manifested by a self-regulated decrease in movement distance and intensity. There is currently limited information on the effect of fatigue on movement patterns in rugby union match play, particularly for players in different position groups (backs vs. forwards). This study investigated the effect of different match periods on movement patterns of professional rugby union players. METHODS: Global positioning system (GPS) data were collected from 46 professional match participations to determine temporal effects on movement patterns...
September 6, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27467516/physical-and-physiological-demands-of-experienced-male-basketball-players-during-a-competitive-game
#16
Carlos Puente, Javier Abián-Vicén, Francisco Areces, Roberto López, Juan Del Coso
Puente, C, Abián-Vicén, J, Areces, F, López, R, and Del Coso, J. Physical and physiological demands of experienced male basketball players during a competitive game. J Strength Cond Res 31(4): 956-962, 2017-The aim of this investigation was to analyze the physical and physiological demands of experienced basketball players during a real and competitive game. Twenty-five well-trained basketball players (8 guards, 8 forwards, and 9 centers) played a competitive game on an outdoor court. Instantaneous running speeds, the number of body impacts above 5 g, and the number of accelerations and decelerations were assessed by means of a 15-Hz global Positioning System accelerometer unit...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27194668/relationships-between-internal-and-external-training-load-in-team-sport-athletes-evidence-for-an-individualized-approach
#17
Jonathan D Bartlett, Fergus O'Connor, Nathan Pitchford, Lorena Torres-Ronda, Samuel J Robertson
PURPOSE: The aim of this study was to quantify and predict relationships between rating of perceived exertion (RPE) and GPS training-load (TL) variables in professional Australian football (AF) players using group and individualized modeling approaches. METHODS: TL data (GPS and RPE) for 41 professional AF players were obtained over a period of 27 wk. A total of 2711 training observations were analyzed with a total of 66 ± 13 sessions/player (range 39-89). Separate generalized estimating equations (GEEs) and artificial-neural-network analyses (ANNs) were conducted to determine the ability to predict RPE from TL variables (ie, session distance, high-speed running [HSR], HSR %, m/min) on a group and individual basis...
February 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27191694/the-running-performance-profile-of-elite-gaelic-football-match-play
#18
Shane Malone, Barry Solan, Kieran Collins
Malone, S, Solan, B, and Collins, K. TITLE: The running performance profile of elite Gaelic football match-play. J Strength Cond Res 31(1): 30-36, 2017-The current study examined (a) the match running performance of Gaelic football and (b) the decrement in match running performance with respect to position. Global positioning satellite system technologies (4-Hz; VX Sport) were used with 3 elite intercounty teams across 3 full seasons with 250 full game data sets collected. Game movements were classified according to game actions and distance covered across speed zone thresholds (total distance [TD], high-speed running distance [HSRD; ≥17 km·h], sprint distance [SD; ≥22 km·h]; accelerations [n]; peak speed [km·h])...
January 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27071364/-the-revised-dutch-college-of-general-practitioners-nhg-practice-guideline-on-visual-symptoms
#19
Wietze E Eizenga, Geert H Blom, Tjerk Wiersma
The 2001 NHG practice guideline on 'Refraction disorders' was revised for the second time in October 2015. The title has been changed to 'Visual symptoms', since besides refraction disorders other conditions such as glaucoma, macular degeneration, cataract and acute eye symptoms are also covered. The ophthalmologist is the specialist to whom GPs refer patients most often. Apart from the GP, ophthalmologist and youth health care physician, various other allied health professions are involved in eye healthcare...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27050247/performance-analysis-of-surfing-a-review
#20
REVIEW
Oliver R L Farley, Chris R Abbiss, Jeremy M Sheppard
Farley, ORL, Abbiss, CR, and Sheppard, JM. Performance Analysis of Surfing: A Review. J Strength Cond Res 31(1): 260-271, 2017-Despite the increased professionalism and substantial growth of surfing worldwide, there is limited information available to practitioners and coaches in terms of key performance analytics that are common in other field-based sports. Indeed, research analyzing surfing performance is limited to a few studies examining male surfers' heart rates, surfing activities through time-motion analysis (TMA) using video recordings and Global Positioning Satellite (GPS) data during competition and recreational surfing...
January 2017: Journal of Strength and Conditioning Research
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