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Journal of Sports Medicine (Hindawi Publishing Corporation)

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https://read.qxmd.com/read/30693287/accuracy-of-anthropometric-equations-to-estimate-dxa-derived-skeletal-muscle-mass-in-professional-male-soccer-players
#1
Roberto Gabriel González-Mendoza, Alejandro Gaytán-González, Juan Antonio Jiménez-Alvarado, Marisol Villegas-Balcázar, Edtna E Jáuregui-Ulloa, Francisco Torres-Naranjo, Juan R López-Taylor
Background: Several anthropometric equations that estimate skeletal muscle mass (SMM) have been published, but their applicability and accuracy among athletes are still uncertain. Purpose: To assess the accuracy of different anthropometric equations that estimate SMM in professional male soccer players, as compared to dual-energy X-ray absorptiometry (DXA) as the reference method. Methods: In this cross-sectional study, we evaluated 179 professional male soccer players aged between 18 and 37 years...
2019: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/30671480/near-infrared-spectroscopy-is-promising-to-detect-iliac-artery-flow-limitations-in-athletes-a-pilot-study
#2
Martijn van Hooff, Goof Schep, Eduard Meijer, Mart Bender, Hans Savelberg
Endurance cyclists have a substantial risk to develop flow limitations in the iliac arteries during their career. These flow limitations are due to extreme hemodynamic stress which may result in functional arterial kinking and/or intravascular lesions. Early diagnosis may improve outcome and could prevent the necessity for surgical vascular repair. However, current diagnostic techniques have unsatisfactory sensitivity and cannot be applied during exercise. Near-infrared spectroscopy (NIRS) has shown great diagnostic potential in peripheral vascular disease and might bring a solution since it measures tissue oxygenation in real time during and after exercise...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/30631776/validity-and-reliability-of-elbow-range-of-motion-measurements-using-digital-photographs-movies-and-a-goniometry-smartphone-application
#3
Renée Keijsers, Elisa L Zwerus, Dagmar R M van Lith, Koen L M Koenraadt, Pjotr Goossens, Bertram The, Michel P J van den Bekerom, Denise Eygendaal
Introduction: Range of motion (ROM) is closely monitored before and after surgery for stiff elbow and during rehabilitation. Measurements in the home environment may be helpful to increase involvement and adherence of the patient. Therefore, our objective is to investigate the validity and inter- and intraobserver reliability of 3 alternative methods to assess the ROM by the patient in a home-based situation, in comparison to the universal goniometer (UG). We hypothesize that all 3 alternative methods will be valid alternatives and show a level of reliability equivalent to UG...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/30631775/stimulus-level-during-endurance-training-effects-on-lactate-kinetics-in-untrained-men
#4
Michael Tuttor, Simon von Stengel, Michael Hettchen, Wolfgang Kemmler
Background/Objective: Not only but particularly due to their time efficiency, High-Intensity Interval Training (HIIT) is becoming increasingly popular in fitness-oriented endurance sports. The purpose of this study was to determine the effect of a HIIT running program versus a Moderate Intensity Continuous Exercise (MICE) training running program (16 weeks each) on lactate kinetics in untrained males. Methods: 65 healthy but untrained males (30-50 years, BMI: 27...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/30533446/changes-in-echocardiographic-parameters-among-beninese-soccer-referees-during-the-division-1-championship-in-2016
#5
Quenum Coffi, Sonou Arnaud, Gouthon Polycarpe, Ahissou Hyacinthe, Messan Folly, Nouatin Basile, Hounkponou Murielle, Houénassi D Martin
Introduction: The goal of this study was to describe the echocardiographic parameters of soccer referees and to examine the changes in these parameters after a period of intensive physical exercise. Methods and Patients: We conducted a prospective study that included Beninese soccer referees. The study of the geometry and function of the left ventricle (LV) was made at the beginning and end of the national Division 1 championship, which was held during the course of 10 weeks...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/30402499/the-effects-of-passive-simulated-jogging-on-short-term-heart-rate-variability-in-a-heterogeneous-group-of-human-subjects
#6
Jose A Adams, Shivam Patel, Jose R Lopez, Marvin A Sackner
Background: Heart rate variability (HRV) reflects neural balance between sympathetic and parasympathetic autonomic nervous systems (ANS). Reduced HRV occurs in several chronic diseases and physical inactivity. External addition of pulses to the circulation restores HRV. A new method to add pulses to the circulation can be accomplished with a passive simulated jogging device (JD). We hypothesized that application of JD might increase HRV in seated and supine postures in a heterogeneous group of volunteer subjects...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/29850597/interactions-of-gut-microbiota-endotoxemia-immune-function-and-diet-in-exertional-heatstroke
#7
REVIEW
Lawrence E Armstrong, Elaine C Lee, Elizabeth M Armstrong
Exertional heatstroke (EHS) is a medical emergency that cannot be predicted, requires immediate whole-body cooling to reduce elevated internal body temperature, and is influenced by numerous host and environmental factors. Widely accepted predisposing factors (PDF) include prolonged or intense exercise, lack of heat acclimatization, sleep deprivation, dehydration, diet, alcohol abuse, drug use, chronic inflammation, febrile illness, older age, and nonsteroidal anti-inflammatory drug use. The present review links these factors to the human intestinal microbiota (IM) and diet, which previously have not been appreciated as PDF...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/29805979/head-impact-exposure-in-junior-and-adult-australian-football-players
#8
Mark Hecimovich, Doug King, Alasdair Dempsey, Myles Murphy
This study measured and compared the frequency, magnitude, and distribution of head impacts sustained by junior and adult Australian football players, respectively, and between player positions over a season of games. Twelve junior and twelve adult players were tracked using a skin-mounted impact sensor. Head impact exposure, including frequency, magnitude, and location of impacts, was quantified using previously established methods. Over the collection period, there were no significant differences in the impact frequency between junior and adult players...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/29736402/accuracy-of-anthropometric-equations-for-estimating-body-fat-in-professional-male-soccer-players-compared-with-dxa
#9
Juan R López-Taylor, Roberto G González-Mendoza, Alejandro Gaytán-González, Juan Antonio Jiménez-Alvarado, Marisol Villegas-Balcázar, Edtna E Jáuregui-Ulloa, Francisco Torres-Naranjo
Background: There are several published anthropometric equations to estimate body fat percentage (BF%), and this may prompt uncertainty about their application. Purpose: To analyze the accuracy of several anthropometric equations (developed in athletic [AT] and nonathletic [NAT] populations) that estimate BF% comparing them with DXA. Methods: We evaluated 131 professional male soccer players (body mass: 73.2 ± 8.0 kg; height: 177.5 ± 5...
2018: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/29359179/erratum-to-nutritional-considerations-for-performance-in-young-athletes
#10
JohnEric W Smith, Megan E Holmes, Matthew J McAllister
[This corrects the article DOI: 10.1155/2015/734649.].
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/29138757/effects-of-marathon-running-on-aerobic-fitness-and-performance-in-recreational-runners-one-week-after-a-race
#11
Fuminori Takayama, Atsushi Aoyagi, Wataru Shimazu, Yoshiharu Nabekura
It is not clear whether or not recreational runners can recover aerobic fitness and performance within one week after marathon running. This study aimed to investigate the effects of running a marathon race on aerobic fitness and performance one week later. Eleven recreational runners (six men, five women) completed the race in 3 h 36 min 20 s ± 41 min 34 s (mean ± standard deviation). Before and 7 days after the race, they performed a treadmill running test. Perceived muscle soreness was assessed before the race and for the following 7 days...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28913413/open-versus-closed-kinetic-chain-exercises-following-an-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#12
REVIEW
Daniel Jewiss, Cecilia Ostman, Neil Smart
BACKGROUND: There is no consensus on whether closed kinetic chain (CKC) or open kinetic chain (OKC) exercises should be the intervention of choice following an anterior cruciate ligament (ACL) injury or reconstruction. METHODS: A systematic search identified randomized controlled trials of OKC versus CKC exercise training in people who had undergone ACL reconstructive surgery. All published studies in this systematic review were comparisons between OKC and CKC groups...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28804753/concussion-incidence-and-recurrence-in-professional-australian-football-match-play-a-14-year-analysis
#13
Nathan Gibbs, Mark Watsford
BACKGROUND: Concussion incidence rates in professional Australian football may be underreported due to the injury classification definition. A myriad of factors contribute to concussion risk; however, there is limited long-term surveillance in Australian football. This study analysed concussion in one Australian football team over an extended period. METHOD: Match-play concussion injuries in one team (n = 116 participants) were diagnosed and treated by the team physician over 14 years...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28702502/characteristics-and-clinical-outcomes-in-overhead-sports-athletes-after-rotator-cuff-repair
#14
Tomoyuki Muto, Hiroaki Inui, Hiroki Ninomiya, Hiroshi Tanaka, Katsuya Nobuhara
Rotator cuff tears in young overhead sports athletes are rare. The pathomechanism causing rotator cuff tears in young overhead athletes is different from that in aged patients. The purpose of this study was to investigate rotator cuff tear characteristics in young overhead sports athletes to reveal the pathomechanism causing these injuries. This study included 25 overhead sports athletes less than 30 years old with atraumatic rotator cuff tears necessitating repair. Rotator cuff tear characteristics were evaluated intraoperatively, including rotator cuff tear shape and injured rotator cuff tendon...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28555198/reductions-in-resting-blood-pressure-in-young-adults-when-isometric-exercise-is-performed-whilst-walking
#15
Anthony W Baross, David A Hodgson, Sarah L Padfield, Ian L Swaine
Aerobic and isometric training have been shown to reduce resting blood pressure, but simultaneous aerobic and isometric training have not been studied. The purpose of this study was to compare the changes in resting systolic (SBP), diastolic (DBP), and mean arterial blood pressure (MAP) after 6 weeks of either (i) simultaneous walking and isometric handgrip exercise (WHG), (ii) walking (WLK), (iii) isometric handgrip exercise (IHG), or control (CON). Forty-eight healthy sedentary participants (age 20.7 ± 1...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28459099/walking-cadence-to-exercise-at-moderate-intensity-for-adults-a-systematic-review
#16
REVIEW
J Slaght, M Sénéchal, T J Hrubeniuk, A Mayo, D R Bouchard
Background. Most adults choose walking as a leisure activity. However, many do not reach the international physical activity guidelines for adults, which recommend moderate intensity aerobic activity for at least 150 minutes/week in bouts of 10 minutes. Purpose. This systematic review provides an update on the walking cadence required to reach moderate intensity in adults and older adults, identifies variables associated with reaching moderate intensity, and evaluates how walking cadence intensity should be measured, but the main purpose is to report the interventions that have been attempted to prescribe walking cadence to increase time spent at moderate intensity or other outcomes for adults and older adults...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28116349/graded-exercise-testing-protocols-for-the-determination-of-vo-2-max-historical-perspectives-progress-and-future-considerations
#17
REVIEW
Nicholas M Beltz, Ann L Gibson, Jeffrey M Janot, Len Kravitz, Christine M Mermier, Lance C Dalleck
Graded exercise testing (GXT) is the most widely used assessment to examine the dynamic relationship between exercise and integrated physiological systems. The information from GXT can be applied across the spectrum of sport performance, occupational safety screening, research, and clinical diagnostics. The suitability of GXT to determine a valid maximal oxygen consumption (VO2max) has been under investigation for decades. Although a set of recommended criteria exists to verify attainment of VO2max, the methods that originally established these criteria have been scrutinized...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/28078321/efficiency-of-an-active-rehabilitation-intervention-in-a-slow-to-recover-paediatric-population-following-mild-traumatic-brain-injury-a-pilot-study
#18
Sarah Imhoff, Philippe Fait, Frédérike Carrier-Toutant, Geneviève Boulard
Objective. The aim of this study was to identify whether the addition of an individualised Active Rehabilitation Intervention to standard care influences recovery of young patients who are slow-to-recover following a mTBI. Methods. Fifteen participants aged 15 ± 2 years received standard care and an individualised Active Rehabilitation Intervention which included (1) low- to high-intensity aerobic training; (2) sport-specific coordination exercises; and (3) therapeutic balance exercises. The following criteria were used to measure the resolution of signs and symptoms of mTBI: (1) absence of postconcussion symptoms for more than 7 consecutive days; (2) cognitive function corresponding to normative data; and (3) absence of deficits in coordination and balance...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/27981229/quantifying-the-slosh-stomach-a-novel-tool-for-assessment-of-exercise-associated-gastroparesis-symptoms-in-endurance-athletes
#19
Amy Sue Biondich, Jeremy D Joslin
Introduction. We describe a novel scale and its field use for evaluation of exercise-associated gastroparesis in the endurance athlete. Methods. A scale was created based on gastroparesis tools previously described in the medical literature. Surveys of the tool were administered to runners participating in a 210 km multiday foot race in Sri Lanka. Results. Use of this novel scale was demonstrated to be useful in assessing gastroparesis severity scores of athletes and how these symptoms affected their race performance...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://read.qxmd.com/read/27844051/the-influence-of-methylsulfonylmethane-on-inflammation-associated-cytokine-release-before-and-following-strenuous-exercise
#20
Mariè van der Merwe, Richard J Bloomer
Background. Inflammation is associated with strenuous exercise and methylsulfonylmethane (MSM) has been shown to have anti-inflammatory properties. Methods. Physically active men were supplemented with either placebo or MSM (3 grams per day) for 28 days before performing 100 repetitions of eccentric knee extension exercise. Ex vivo and in vitro testing consisted of evaluating cytokine production in blood (whole blood and isolated peripheral blood mononuclear cells (PBMCs)) exposed to lipopolysaccharide (LPS), before and through 72 hours after exercise, while in vivo testing included the evaluation of cytokines before and through 72 hours after exercise...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
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