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Journal of Science and Medicine in Sport

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https://www.readbyqxmd.com/read/28919495/physical-exercise-and-cognitive-function-across-the-life-span-results-of-a-nationwide-population-based-study
#1
Beate Gaertner, Amanda K Buttery, Jonas D Finger, Steffen Wolfsgruber, Michael Wagner, Markus A Busch
OBJECTIVES: To examine cross-sectional and longitudinal associations between physical exercise and cognitive function across different age groups in a nationwide population-based sample of adults aged 18-79 years in Germany. DESIGN: Cross-sectional/prospective. METHODS: Cognitive function was assessed in the mental health module of the German Health Interview and Examination Survey for Adults (DEGS1-MH, 2009-2012, n=3535), using a comprehensive neuropsychological test battery...
September 14, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28935128/quality-of-life-and-sleep-quality-are-similarly-improved-after-aquatic-or-dry-land-aerobic-training-in-patients-with-type-2-diabetes-a-randomized-clinical-trial
#2
Rodrigo S Delevatti, Felipe Barreto Schuch, Ana Carolina Kanitz, Cristine L Alberton, Elisa Corrêa Marson, Salime Chedid Lisboa, Carolina Dertzbocher Feil Pinho, Luciana Peruchena Bregagnol, Maríndia Teixeira Becker, Luiz Fernando M Kruel
OBJECTIVES: To compare the effects of two aerobic training models in water and on dry-land on quality of life, depressive symptoms and sleep quality in patients with type 2 diabetes. DESIGN: Randomized clinical trial. METHODS: Thirty-five patients with type 2 diabetes were randomly assigned to aquatic aerobic training group (n=17) or dry-land aerobic training group (n=18). Exercise training length was of 12 weeks, performed in three weekly sessions (45min/session), with intensity progressing from 85% to 100% of heart rate of anaerobic threshold during interventions...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28927970/hormonal-response-patterns-are-differentially-influenced-by-physical-conditioning-programs-during-basic-military-training
#3
Jace R Drain, Herbert Groeller, Simon D Burley, Bradley C Nindl
OBJECTIVES: Compare traditional military physical training and more contemporary physical training on catabolic and anabolic hormones and body composition in recruits undertaking basic military training (BMT). DESIGN: A prospective cross-sectional study design. METHODS: Two recruit intakes were assessed over the 12-week Australian Army BMT course. The control group (CON) comprised 40 recruits (26M/14F) and the experimental group (EXP) comprised 35 recruits (25M/10F)...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919497/body-mass-index-predicts-selected-physical-fitness-attributes-but-is-not-associated-with-performance-on-military-relevant-tasks-in-u-s-army-soldiers
#4
Joseph R Pierce, David W DeGroot, Tyson L Grier, Keith G Hauret, Bradley C Nindl, Whitfield B East, Michael S McGurk, Bruce H Jones
OBJECTIVES: Army body composition standards are based upon validated criteria; however, certain field-expedient methodologies (e.g., weight-for-height, body mass index [BMI]) may disqualify individuals from service who may otherwise excel on physical performance and military-relevant tasks. The purpose was to assess soldier physical performance and military-specific task/fitness performance stratified by BMI. DESIGN: Cross-sectional observational study. METHODS: Male (n=275) and female (n=46) soldiers performed a wide-array of physical fitness tests and military-specific tasks, including the Army physical fitness test (APFT)...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919493/heat-stress-incident-prevalence-and-tennis-matchplay-performance-at-the-australian-open
#5
Matthew T Smith, Machar Reid, Stephanie Kovalchik, Tim O Woods, Rob Duffield
OBJECTIVES: To examine the association of wet bulb globe temperature (WBGT) with the occurrence of heat-related incidents and changes in behavioural and matchplay characteristics in men's Grand Slam tennis. DESIGN: On-court calls for trainers, doctors, cooling devices and water, post-match medical consults and matchplay characteristic data were collected from 360 Australian Open matches (first 4 rounds 2014-2016). METHODS: Data were referenced against estimated WBGT and categorised into standard zones...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28927971/the-interaction-of-polymorphisms-in-extracellular-matrix-genes-and-underlying-mirna-motifs-that-modulate-susceptibility-to-anterior-cruciate-ligament-rupture
#6
Kyle Willard, Sasha Mannion, Colleen J Saunders, Malcolm Collins, Alison V September
OBJECTIVES: Variants within genes that encode proteins regulating fibrillogenesis such as BGN (rs1126499 C>T, rs1042103 C>T), COL5A1 (rs12722 C>T) and DCN (rs516115 C>T) have been associated with susceptibility to anterior cruciate ligament (ACL) ruptures. A miRNA mediated transcript instability was proposed for the COL5A1 association. The study aims were: (i) to investigate the association of inferred allele combinations across the COL5A1 3'-UTR, BGN and DCN genes with susceptibility to ACL rupture; and (ii) to use an in silico approach to identify miRNA binding sites common to these risk associated allele combinations...
September 1, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28888475/promoter-methylation-status-of-the-timp2-and-adamts4-genes-and-patellar-tendinopathy
#7
Louis Y El Khoury, Rebecca Rickaby, Tom Samiric, Stuart M Raleigh
OBJECTIVES: Patellar tendinopathy (PT) is a debilitating and prevalent condition that tends to affect those who are physically active or engaged in jumping sports. Although tendinopathies are known to have a genetic basis, the role of DNA methylation as an epigenetic factor and risk determinant for human PT has never been described. We sought to determine whether differences existed between the methylation profiles of both the TIMP2 and ADAMTS4 gene promoter sequences in a cohort of males having undergone surgery for patellar tendinopathy compared to controls...
September 1, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28886923/the-effect-of-12-month-participation-in-osteogenic-and-non-osteogenic-sports-on-bone-development-in-adolescent-male-athletes-the-pro-bone-study
#8
Dimitris Vlachopoulos, Alan R Barker, Esther Ubago-Guisado, Francisco B Ortega, Peter Krustrup, Brad Metcalf, Jose Castro Pinero, Jonatan R Ruiz, Karen M Knapp, Craig A Williams, Luis A Moreno, Luis Gracia-Marco
OBJECTIVES: Research investigating the longitudinal effects of the most popular sports on bone development in adolescent males is scarce. The aim is to investigate the effect of 12-month participation in osteogenic and non-osteogenic sports on bone development. DESIGN: A 12-month study was conducted in adolescent males involved in football, swimming and cycling and compared with an active control group. METHODS: 116 adolescent males (13.1±0...
September 1, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28928023/u-s-army-physical-demands-study-prevalence-and-frequency-of-performing-physically-demanding-tasks-in-deployed-and-non-deployed-settings
#9
Michael W Boye, Bruce S Cohen, Marilyn A Sharp, Maria C Canino, Stephen A Foulis, Kathleen Larcom, Laurel Smith
OBJECTIVES: To compare percentages of on-duty time spent performing physically demanding soldier tasks in non-deployed and deployed settings, and secondarily examine the number of physically demanding tasks performed among five Army combat arms occupational specialties. DESIGN: Job task analysis. METHODS: Soldiers (n=1295; over 99% serving on active duty) across five Army jobs completed one of three questionnaires developed using reviews of job and task related documents, input from subject matter experts, observation of task performance, and conduct of focus groups...
August 31, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919494/shoulder-injury-in-water-polo-a-systematic-review-of-incidence-and-intrinsic-risk-factors
#10
REVIEW
Andrea H Miller, Kerrie Evans, Roger Adams, Gordon Waddington, Jeremy Witchalls
OBJECTIVES: Water polo is a popular water-based contact sport that involves swimming, throwing and defending. Cumulatively, these repetitive overhead activities are thought to increase the risk of shoulder injury and, subsequently to affect players' physical conditioning as well as team performance. The purpose of this review was to examine available evidence relating to shoulder injury rates and risk factors for shoulder injury in water polo. DESIGN: Systematic review METHODS: CINAHL, AUSPORT, Pubmed, Pedro and SPORTDiscus databases were searched for original research papers using the predefined terms ("water polo") AND (shoulder OR glenohumeral* OR arm OR "upper limb")...
August 31, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919496/the-pandolf-equation-under-predicts-the-metabolic-rate-of-contemporary-military-load-carriage
#11
Jace R Drain, Brad Aisbett, Michael Lewis, Daniel C Billing
OBJECTIVES: This investigation assessed the accuracy of error of the Pandolf load carriage energy expenditure equation when simulating contemporary military conditions (load distribution, external load and walking speed). DESIGN: Within-participant design. METHODS: Sixteen male participants completed 10 trials comprised of five walking speeds (2.5, 3.5, 4.5, 5.5 and 6.5km·h(-1)) and two external loads (22.7 and 38.4kg). RESULTS: The Pandolf equation demonstrated poor predictive precision, with a mean bias of 124...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28899656/greater-ankle-strength-anaerobic-and-aerobic-capacity-and-agility-predict-ground-combat-military-occupational-school-graduation-in-female-marines
#12
Katelyn Fleishman Allison, Karen A Keenan, Meleesa F Wohleber, Katherine A Perlsweig, Erin R Pletcher, Mita Lovalekar, Kim Beals, Lawrence C Coleman, Bradley C Nindl
Women can serve in all military occupational specialties (MOS); however, musculoskeletal and physiological characteristics that predict successful completion of ground combat MOS schools by female Marines are unknown. OBJECTIVES: To determine which demographic, musculoskeletal, and physiological characteristics predict graduation from infantry and vehicle ground combat MOS schools in female Marines. DESIGN: Prospective cohort study. METHODS: Prior to MOS school, the following were assessed in 62 female Marines (22...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28882435/validation-of-headcount-2w-for-estimation-of-two-week-heading-comparison-to-daily-reporting-in-adult-amateur-player
#13
Michael L Lipton, Chloe Ifrah, Walter F Stewart, Roman Fleysher, Martin J Sliwinski, Mimi Kim, Richard B Lipton
OBJECTIVES: To validate the HeadCount-2w questionnaire for estimation of 2-week soccer heading by comparison to daily electronic diary reporting over the same two-week period. DESIGN: Prospective observational study. METHODS: Adult amateur soccer players completed HeadCount-daily, comprising 14 daily at-home assessments of soccer play and heading via a tablet PC. Following the 14day period, players completed HeadCount-2w, a web-based two-week-recall questionnaire on soccer and heading...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28866111/does-player-unavailability-affect-football-teams-match-physical-outputs-a-two-season-study-of-the-uefa-champions-league
#14
Johann Windt, Jan Ekstrand, Karim M Khan, Alan McCall, Bruno D Zumbo
OBJECTIVES: Player unavailability negatively affects team performance in elite football. However, whether player unavailability and its concomitant performance decrement is mediated by any changes in teams' match physical outputs is unknown. We examined whether the number of players injured (i.e. unavailable for match selection) was associated with any changes in teams' physical outputs. DESIGN: Prospective cohort study. METHODS: Between-team variation was calculated by correlating average team availability with average physical outputs...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28866110/effect-of-a-16-week-bikram-yoga-program-on-perceived-stress-self-efficacy-and-health-related-quality-of-life-in-stressed-and-sedentary-adults-a-randomised-controlled-trial
#15
Zoe L Hewett, Kate L Pumpa, Caroline A Smith, Paul P Fahey, Birinder S Cheema
OBJECTIVES: The purpose of this study was to investigate the effect of 16 weeks of Bikram yoga on perceived stress, self-efficacy and health related quality of life (HRQoL) in sedentary, stressed adults. DESIGN: 16 week, parallel-arm, randomised controlled trial with flexible dosing. METHODS: Physically inactive, stressed adults (37.2±10.8 years) were randomised to Bikram yoga (three to five classes per week) or control (no treatment) group for 16 weeks...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28866109/a-three-year-epidemiological-prospective-cohort-study-of-rugby-league-match-injuries-from-the-european-super-league
#16
Anna C Fitzpatrick, Adam S Naylor, Peter Myler, Colin Robertson
OBJECTIVES: Conduct a comprehensive epidemiological study of match injury characteristics (incidence, severity, causes, diagnostics, and temporal trends) in professional rugby league. DESIGN: Prospective cohort design. METHODS: Data was captured over the 2013, '14, and '15 seasons, collected via an online-reporting survey tool, and underpinned by nominal group technique-agreed definitions. Injury details were provided by club medical staff in accordance to the survey fields from all European Super League teams (e...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28855085/the-impact-of-accelerometer-wear-location-on-the-relationship-between-step-counts-and-arterial-stiffness-in-adults-treated-for-hypertension-and-diabetes
#17
Alexandra B Cooke, Stella S Daskalopoulou, Kaberi Dasgupta
OBJECTIVES: Accelerometer placement at the wrist is convenient and increasingly adopted despite less accurate physical activity (PA) measurement than with waist placement. Capitalizing on a study that started with wrist placement and shifted to waist placement, we compared associations between PA measures derived from different accelerometer locations with a responsive arterial health indicator, carotid-femoral pulse wave velocity (cfPWV). DESIGN: Cross-sectional study...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919122/functional-movement-screen-pain-versus-composite-score-and-injury-risk
#18
Joseph A Alemany, Timothy T Bushman, Tyson Grier, Morgan K Anderson, Michelle Canham-Chervak, William J North, Bruce H Jones
OBJECTIVES: The Functional Movement Screen (FMS™) has been used as a screening tool to determine musculoskeletal injury risk using composite scores based on movement quality and/or pain. However, no direct comparisons between movement quality and pain have been quantified. DESIGN: Retrospective injury data analysis. METHODS: Male Soldiers (n=2154, 25.0±1.3years; 26.2±.7kg/m(2)) completed the FMS (scored from 0 points (pain) to 3 points (no pain and perfect movement quality)) with injury data over the following six months...
August 23, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919121/the-utility-of-instrumented-dual-task-gait-and-tablet-based-neurocognitive-measurements-after-concussion
#19
David R Howell, Alexandra Stillman, Thomas A Buckley, Brant Berkstresser, Francis Wang, William P Meehan
OBJECTIVES: Quantitative and non-invasive measurements acquired by neurocognitive or gait evaluations are useful concussion management components. Emerging technology has allowed for the development of portable and objective tests which may be potentially useful across many settings where evaluations take place. Our aim was to examine the association between instrumented dual-task gait and tablet-based neurocognitive outcome variables with an acute concussion. DESIGN: A total of 59 collegiate athletes were identified and tested within 5days of concussion (n=18, 50% female, 20±1years of age) or as a part of a baseline examination (n=41, 29% female, 19±1years of age)...
August 16, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28882434/associations-of-age-aerobic-fitness-and-body-mass-index-with-injury-in-an-operational-army-brigade
#20
Catherine Rappole, Tyson Grier, Morgan K Anderson, Veronique Hauschild, Bruce H Jones
OBJECTIVES: To investigate the effects of age, aerobic fitness, and body mass index (BMI) on injury risk in operational Army soldiers. DESIGN: Retrospective cohort study. METHODS: Male soldiers from an operational Army brigade were administered electronic surveys regarding personal characteristics, physical fitness, and injuries occurring over the last 12 months. Injury risks were stratified by age, 2-mile run time, and BMI. Analyses included descriptive incidence, a Mantel-Haenszel χ(2) test to determine trends, a multivariable logistic regression to determine factors associated with injury, and a one-way analysis of variance (ANOVA)...
August 10, 2017: Journal of Science and Medicine in Sport
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