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Open Access Journal of Sports Medicine

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https://www.readbyqxmd.com/read/29276416/impact-of-lowering-ski-binding-settings-on-the-outcome-of-the-self-release-test-of-ski-bindings-among-female-recreational-skiers
#1
Markus Posch, Martin Burtscher, Alois Schranz, Katja Tecklenburg, Kenneth Helle, Gerhard Ruedl
Background and purpose: The ability to successfully self-release the ski binding can prevent skiing-related injuries of the lower extremities. Failure of binding release associated with a knee injury is significantly higher among females compared to males. The International Standards Organization ISO 11088 standard for binding setting values allows a lowering by 15% upon request of the skier. Thus, the aim of this study was to evaluate the impact of lowered ski binding settings by 15% on the outcome of the self-release test among female recreational skiers...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29270034/occult-atrial-fibrillation-in-endurance-athletes
#2
Ashim Aggarwal, Jeffrey J Heslop, Rebecca R Wigant, Suneetha Venkatapuram, Stephanie J Hillis, Alan R Parr, Hakan Oral, Timir S Baman
No abstract text is available yet for this article.
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29225481/perspectives-on-high-intensity-interval-exercise-for-health-promotion-in-children-and-adolescents
#3
REVIEW
Bert Bond, Kathryn L Weston, Craig A Williams, Alan R Barker
Physical activity lowers future cardiovascular disease (CVD) risk; however, few children and adolescents achieve the recommended minimum amount of daily activity. Accordingly, there is virtue in identifying the efficacy of small volumes of high-intensity exercise for health benefits in children and adolescents for the primary prevention of CVD risk. The purpose of this narrative review is to provide a novel overview of the available literature concerning high-intensity interval-exercise (HIIE) interventions in children and adolescents...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29200895/physiological-and-training-characteristics-of-recreational-marathon-runners
#4
Dan Gordon, Sarah Wightman, Itay Basevitch, James Johnstone, Carolina Espejo-Sanchez, Chelsea Beckford, Mariette Boal, Adrian Scruton, Mike Ferrandino, Viviane Merzbach
Purpose: The aim of this study was to examine the physical and training characteristics of recreational marathon runners within finish time bandings (2.5-3 h, 3-3.5 h, 3.5-4 h, 4-4.5 h and >4.5 h). Materials and methods: A total of 97 recreational marathon runners (age 42.4 ± 9.9 years; mass 69.2 ± 11.3 kg; stature 172.8 ± 9.1 cm), with a marathon finish time of 229.1 ± 48.7 min, of whom n = 34 were female and n = 63 were male, completed an incremental treadmill test for the determination of lactate threshold (LT1), lactate turn point (LT2) and running economy (RE)...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29138605/effect-of-creatine-supplementation-during-resistance-training-on-lean-tissue-mass-and-muscular-strength-in-older-adults-a-meta-analysis
#5
REVIEW
Philip D Chilibeck, Mojtaba Kaviani, Darren G Candow, Gordon A Zello
The loss of muscle mass and strength with aging results in significant functional impairment. Creatine supplementation has been used in combination with resistance training as a strategy for increasing lean tissue mass and muscle strength in older adults, but results across studies are equivocal. We conducted a systematic review and meta-analysis of randomized controlled trials of creatine supplementation during resistance training in older adults with lean tissue mass, chest press strength, and leg press strength as outcomes by searching PubMed and SPORTDiscus databases...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29138604/sport-related-anxiety-current-insights
#6
REVIEW
Jessica L Ford, Kenneth Ildefonso, Megan L Jones, Monna Arvinen-Barrow
To date, much research has been devoted to understanding how anxiety can affect sport performance, both in practice and in competitive settings. It is well known that sport has the potential for high levels of stress and anxiety, and that practicing and employing a range of psychological strategies can be beneficial in anxiety management. Equally, growing evidence also suggests that anxiety can play a role in sport injury prevention, occurrence, rehabilitation, and the return to sport process. The purpose of this paper is to provide current insights into sport-related anxiety...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29070955/patellofemoral-pain-in-athletes-clinical-perspectives
#7
REVIEW
Farzin Halabchi, Maryam Abolhasani, Maryam Mirshahi, Zahra Alizadeh
Patellofemoral pain (PFP) is a very common problem in athletes who participate in jumping, cutting and pivoting sports. Several risk factors may play a part in the pathogenesis of PFP. Overuse, trauma and intrinsic risk factors are particularly important among athletes. Physical examination has a key role in PFP diagnosis. Furthermore, common risk factors should be investigated, such as hip muscle dysfunction, poor core muscle endurance, muscular tightness, excessive foot pronation and patellar malalignment...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29070954/race-predictors-and-hemodynamic-alteration-after-an-ultra-trail-marathon-race
#8
Noppon Taksaudom, Natee Tongsiri, Amarit Potikul, Chawakorn Leampriboon, Apichat Tantraworasin, Anong Chaiyasri
OBJECTIVE: Unique rough-terrain ultra-trail running races have increased in popularity. Concerns regarding the suitability of the candidates make it difficult for organizers to manage safety regulations. The purpose of this study was to identify possible race predictors and assess hemodynamic change after long endurance races. METHODS: We studied 228 runners who competed in a 66 km-trail running race. A questionnaire and noninvasive hemodynamic flow assessment including blood pressure, heart rate, stroke volume, stroke volume variation, systemic vascular resistance, cardiac index, and oxygen saturation were used to determine physiologic alterations and to identify finish predictors...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28860876/effect-of-age-and-performance-on-pacing-of-marathon-runners
#9
Pantelis Theodoros Nikolaidis, Beat Knechtle
Pacing strategies in marathon runners have previously been examined, especially with regard to age and performance level separately. However, less information about the age × performance interaction on pacing in age-group runners exists. The aim of the present study was to examine whether runners with similar race time and at different age differ for pacing. Data (women, n=117,595; men, n=180,487) from the "New York City Marathon" between 2006 and 2016 were analyzed. A between-within subjects analysis of variance showed a large main effect of split on race speed (p<0...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28761382/magnetic-resonance-imaging-for-assessing-hamstring-injuries-clinical-benefits-and-pitfalls-a-review-of-the-current-literature
#10
REVIEW
Max Greenky, Steven B Cohen
Hamstring injuries are common injuries in all levels of athletics. Hamstring injuries can cause prolonged absence from sports and have a notorious rate of reinjury. Magnetic resonance imaging (MRI) is being increasingly utilized following a hamstring injury. Physicians are being increasingly asked to utilize MRI to predict clinical outcomes, including time frame for return to play and risk of reinjury. In spite of numerous studies in this area, no clear consensus exists. The purpose of this paper is to summarize the literature and evidence regarding the role of MRI in treating hamstring injuries...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28744166/intramyocellular-lipids-of-muscle-type-in-athletes-of-different-sport-disciplines
#11
Yoshinao Nakagawa, Masaaki Hattori
The present study used magnetic resonance spectroscopy ((1)H-MRS) to examine quantitative differences in intramyocellular lipid (IMCL) contents in various muscle types at rest for individual athletes from different sport disciplines. Five groups consisting of sprinters, alpine skiers, cross-country skiers, endurance runners and untrained healthy male subjects volunteered for this study. Data were acquired using (1)H-MRS from the tibialis anterior (TA), medial gastrocnemius (MG) and soleus (SOL) muscles. No significant difference was found in the cross-sectional area (CSA) of the TA, MG and SOL muscles, whereas the CSA of subcutaneous fat was significantly lower (p<0...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28721108/effect-of-self-paced-active-recovery-and-passive-recovery-on-blood-lactate-removal-following-a-200-m-freestyle-swimming-trial
#12
Márcio Rabelo Mota, Renata Aparecida Elias Dantas, Iransé Oliveira-Silva, Marcelo Magalhães Sales, Rafael da Costa Sotero, Patrícia Espíndola Mota Venâncio, Jairo Teixeira Júnior, Sandro Nobre Chaves, Filipe Dinato de Lima
PURPOSE: The aim of this study was to investigate the effect of self-paced active recovery (AR) and passive recovery (PR) on blood lactate removal following a 200 m freestyle swimming trial. PATIENTS AND METHODS: Fourteen young swimmers (with a training frequency of 6-8 sessions per week) performed two maximal 200 m freestyle trials followed by 15 minutes of different recovery methods, on separate days. Recovery was performed with 15 minutes of passive rest or 5 minutes of passive rest and 10 minutes of self-paced AR...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28652829/patellofemoral-pain-in-athletes
#13
REVIEW
Wolf Petersen, Ingo Rembitzki, Christian Liebau
Patellofemoral pain (PFP) is a frequent cause of anterior knee pain in athletes, which affects patients with and without structural patellofemoral joint (PFJ) damage. Most younger patients do not have any structural changes to the PFJ, such as an increased Q angle and a cartilage damage. This clinical entity is known as patellofemoral pain syndrome (PFPS). Older patients usually present with signs of patellofemoral osteoarthritis (PFOA). A key factor in PFPS development is dynamic valgus of the lower extremity, which leads to lateral patellar maltracking...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28652828/prevention-treatment-and-rehabilitation-of-anterior-cruciate-ligament-injuries-in-children
#14
REVIEW
Pamela J Lang, Dai Sugimoto, Lyle J Micheli
As more children and adolescents participate in competitive organized sports, there has been an increase in the reported incidence of anterior cruciate ligament (ACL) injuries in these age groups. ACL injuries in skeletally immature athletes present a challenge, as reconstruction must preserve the physis of the distal femur and of the proximal tibia to avoid growth disturbances. Historically, a skeletally immature athlete with an ACL injury was treated with a brace and activity modification until skeletal maturity, with ACL reconstruction being performed at that time in the "non-copers" who experienced instability...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28615977/high-lateral-plantar-pressure-is-related-to-an-increased-tibialis-anterior-fibularis-longus-activity-ratio-in-patients-with-recurrent-lateral-ankle-sprain
#15
Shinshiro Mineta, Takayuki Inami, Raldy Mariano, Norikazu Hirose
INTRODUCTION: Center of pressure (COP) is a sudden displacement at the time of a lateral ankle sprain (LAS). It has been suggested that the distribution of plantar pressure and the quantity of COP displacement are important for assessing the risk of LAS. Therefore, we evaluated the plantar pressure during a single-leg balance test with eyes closed (SLB-C) to identify the factors and characteristics of plantar pressure in people with repeated cases of LAS. METHODS: We recruited 22 collegiate athletes and divided them into an instability group (IG; n=11) and a control group (CG; n=11)...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28546774/injuries-and-illnesses-in-a-cohort-of-elite-youth-alpine-ski-racers-and-the-influence-of-biological-maturity-and-relative-age-a-two-season-prospective-study
#16
Lisa Müller, Carolin Hildebrandt, Erich Müller, Renate Oberhoffer, Christian Raschner
BACKGROUND: Studies on injuries and illnesses involving youth ski racers younger than 15 years are lacking in the literature. The aim of this study was prospectively to assess the incidence, prevalence, and severity of traumatic and overuse injuries, as well as illnesses of elite youth ski racers with regard to sex, biological maturity status, and relative age. SUBJECTS AND METHODS: A prospective, longitudinal cohort design was used to monitor the anthropometrics, training characteristics, traumatic and overuse injuries, and illnesses of 82 elite youth ski racers (51 males, 31 females, age 9-14 years) over 2 consecutive years...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28490908/effects-of-prophylactic-ankle-and-knee-braces-on-leg-stiffness-during-hopping
#17
Hiroaki Hobara, Satoru Hashizume, Yoshiyuki Kobayashi
During human movement, the leg can be represented as a mechanical spring, with its stiffness potentially contributing to sports performance and injury prevention. Although many individuals perform athletic activities with joint stabilizers, little is known about the effects of prophylactic lower extremity braces on leg stiffness. The objective of this study was to investigate the effect of ankle and/or knee braces on leg stiffness measured during one-legged hopping at a range of frequencies. Thirteen male participants performed one-legged hopping with their dominant leg at frequencies of 2...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28450792/long-term-outcomes-of-the-bankart-and-latarjet-repairs-a-systematic-review
#18
Natalie C Rollick, Yohei Ono, Hafeez M Kurji, Atiba A Nelson, Richard S Boorman, Gail M Thornton, Ian Ky Lo
The most common surgical techniques for the treatment of recurrent anterior shoulder instability include the arthroscopic Bankart repair, the open Bankart repair and the open Latarjet procedure. The purpose of this study was to evaluate and compare the long-term outcomes following these procedures. A systematic review of modern procedures with a minimum follow-up of 5 years was completed. The objective outcome measures evaluated were post-operative dislocation and instability rate, the Rowe score, radiographic arthritis and complications...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28435337/treatment-strategies-for-the-female-athlete-triad-in-the-adolescent-athlete-current-perspectives
#19
REVIEW
Jill Thein-Nissenbaum, Erin Hammer
Since the passage of Title IX in 1972, female sports participation has dramatically increased. The benefits of physical activity, including decreased risk for heart disease and diabetes as well as improved body image and self-esteem, far outweigh the risks. However, a select population of adolescent and young adult females may experience symptoms related to the female athlete triad (Triad), which refers to the interrelatedness of energy availability, menstrual function, and bone mineral density (BMD). These conditions often manifest clinically as disordered eating behaviors, menstrual irregularity, and stress fractures; an individual may suffer from 1 or all of the Triad components simultaneously...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28435336/anterior-cruciate-ligament-injury-reinjury-in-alpine-ski-racing-a-narrative-review
#20
REVIEW
Matthew J Jordan, Per Aagaard, Walter Herzog
The purpose of the present review was to: 1) provide an overview of the current understanding on the epidemiology, etiology, risk factors, and prevention methods for anterior cruciate ligament (ACL) injury in alpine ski racing; and 2) provide an overview of what is known pertaining to ACL reinjury and return to sport after ACL injury in alpine ski racing. Given that most of the scientific studies on ACL injuries in alpine ski racing have been descriptive, and that very few studies contributed higher level scientific evidence, a nonsystematic narrative review was employed...
2017: Open Access Journal of Sports Medicine
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