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https://www.readbyqxmd.com/read/28921035/-midportion-achilles-tendinopathy
#1
REVIEW
J Weber, T Buchhorn
Although the incidence of midportion Achilles tendinopathy is under 1% in the general population, it is quite a common disease in runners that is characterized by the symptom triad of pain, swelling and impaired physical performance. Pain and swelling are located in the area 2 to 7 cm proximal the tendon insertion onto the calcaneus.Diagnosis is made by adequate clinical symptoms and corresponding findings in sonography and/or magnetic resonance imaging scans. Histopathologically, mostly degenerative changes in the tendon structure are found, sometimes accompanied by intra- and paratendinous inflammation...
September 18, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28918787/-running-and-causes-of-running-related-injuries
#2
Camilla Kjær Cullum, Peter Hung Thanh Tran, Simon Døssing
Running is one of the most popular sports among the adult Danish population. Overuse injuries of the knee, such as runners knee, jumpers knee, patello-femoral pain syndrome and patello-femoral pre-arthrosis, are common and cause reduction of the health beneficial physical activity. Treatment should primarily focus on adjustment of training habits and physiotherapeutic guided rehabilitation. Other treatment options include changing landing pattern during running, corticosteroid injections, non-steroid anti-inflammatory drugs and ultimately surgery...
September 18, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28916956/transitioning-to-minimal-footwear-a-systematic-review-of-methods-and-future-clinical-recommendations
#3
REVIEW
Joe P Warne, Allison H Gruber
BACKGROUND: Recent interest in barefoot running has led to the development of minimalist running shoes that are popular in distance runners. A careful transition to these shoes has been suggested and examined in the literature. However, no guidelines based on systematic evidence have been presented. The purpose of this review is to systematically examine the methods employed in the literature to transition to minimal footwear (MFW), as well as the outcomes to these studies in distance runners...
September 15, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28912661/effectiveness-of-movement-therapy-interventions-and-training-modifications-for-preventing-running-injuries-a-meta-analysis-of-randomized-controlled-trials
#4
Žiga Kozinc, Nejc Šarabon
Runners are at relatively high risk for sustaining an overuse injury. While many risk factors have been documented so far, previous reviews have mostly failed to identify effective interventions to lower injury risk in runners. To review the high-quality evidence on two types of preventive interventions - movement therapy interventions and training-modification interventions, regarding running-related injury prevention. Pubmed (MEDLINE), PEDro and Cochrane Central Register of Controlled Trials databases were searched in April 2017, with no date or language restrictions, using following search terms: running injury prevention, running injury therapy, running injury incidence, running injury exercise and running injury risk...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28902682/the-influence-of-foot-strike-technique-on-the-neuromechanical-function-of-the-foot
#5
Luke A Kelly, Dominic J Farris, Glen A Lichtwark, Andrew G Cresswell
PURPOSE: The aim of this study was to investigate the influence of foot-strike technique on longitudinal arch mechanics and intrinsic foot muscle function during running. METHODS: 13 healthy participants ran barefoot on a force-instrumented treadmill at 2.8ms with a forefoot (FFS) and rear-foot (RFS, habitual) running technique, while kinetic, kinematic and electromyographic (EMG) data from the intrinsic foot muscles were collected simultaneously. The longitudinal arch was modeled as a single "mid-foot" joint representing motion of the rear-foot (calcaneus) relative to the forefoot (metatarsals)...
September 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28901963/underlying-chronic-disease-medication-use-history-of-running-injuries-and-being-a-more-experienced-runner-are-independent-factors-associated-with-exercise-associated-muscle-cramping-a-cross-sectional-study-in-15778-distance-runners
#6
Martin P Schwellnus, Sonja Swanevelder, Esme Jordaan, Wayne Derman, Dina C Janse Van Rensburg
BACKGROUND: Exercise-associated muscle cramping (EAMC) is a significant medical complication in distance runners, yet factors associated with EAMC are poorly documented. OBJECTIVE: To document risk factors associated with EAMC in runners. DESIGN: Cross-sectional study. SETTING: Two ocean races (21.1 km, and 56 km). PARTICIPANTS: Fifteen thousand seven hundred seventy-eight race entrants. METHODS: Participants completed a prerace medical history screening tool including: training, cardiovascular disease (CVD), risk factors for, and symptoms of CVD, history of diseases affecting major organ systems, cancer, allergies, medication use, and running injury...
August 18, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28900573/the-effects-of-a-multimodal-rehabilitation-program-on-pain-kinesiophobia-and-function-in-a-runner-with-patellofemoral-pain
#7
Samuele Passigli, Pietro Capacci, Emanuele Volpi
BACKGROUND AND PURPOSE: Multimodal interventions possess the strongest evidence in the long-term management of patellofemoral pain, but despite receiving evidence-based treatments that are initially effective many patients report recurrent or persistent symptoms for years after the initial diagnosis. Untreated psychological factors could be a possible explanation for persistent symptoms and poor treatment outcome. The purpose of this case report was to describe and evaluate the effects of a multimodal rehabilitation program that included pain education, a graded program of lower limb strengthening, and running retraining on pain, kinesiophobia, and function in a runner with patellofemoral pain...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28900570/running-injury-development-the-attitudes-of-middle-and-long-distance-runners-and-their-coaches
#8
Karen Krogh Johansen, Adam Hulme, Camma Damsted, Daniel Ramskov, Rasmus Oestergaard Nielsen
BACKGROUND: Behavioral science methods have rarely been used in running injury research. Therefore, the attitudes amongst runners and their coaches regarding factors leading to running injuries warrants formal investigation. PURPOSE: To investigate the attitudes of middle- and long-distance runners able to compete in national championships and their coaches about factors associated with running injury development. METHODS: A link to an online survey was distributed to middle- and long-distance runners and their coaches across 25 Danish Athletics Clubs...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28900569/there-are-no-biomechanical-differences-between-runners-classified-by-the-functional-movement-screen
#9
Rodrigo Ribeiro de Oliveira, Shalimá Figueirêdo Chaves, Yuri Lopes Lima, Márcio Almeida Bezerra, Gabriel Peixoto Leão Almeida, Pedro Olavo de Paula Lima
BACKGROUND: Running has been one of the main choices of physical activity in people seeking an active lifestyle. The Functional Movement Screen (FMS™) is a screening tool that aims to discern movement competency. PURPOSE: The purposes of this study were to compare biomechanical characteristics between two groups rated using the composite FMS™ score, and to analyze the influence of specific individual tests. The hypothesis was that the group that scored above 14 would demonstrate better performance on biomechanical tests than the group that scored below 14...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28900568/can-runners-perceive-changes-in-heel-cushioning-as-the-shoe-ages-with-increased-mileage
#10
Mark W Cornwall, Thomas G McPoil
BACKGROUND: For those runners who utilize footwear and have a rearfoot strike pattern, the durability of the midsole heel region has been shown to deteriorate as shoe mileage increases. PURPOSE: The purpose of this study was threefold: 1) to determine if the runner can self-report changes in heel cushioning properties of the midsole after an extended period of distance running, 2) to determine if force and plantar pressures measured in the heel region of the midsole using a capacitance sensor insole change after running 640 km, and 3) to determine if a durometer could be used clinically to objectively measure changes in the hardness of the material in the heel region of the midsole...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28891824/low-fodmap-a-preliminary-strategy-to-reduce-gastrointestinal-distress-in-athletes
#11
Dana M Lis, Trent Stellingwerff, Cecilia M Kitic, James W Fell, Kiran D K Ahuja
INTRODUCTION: Gastrointestinal (GI) distress in endurance athletes is prevalent and detrimental to performance. Adverse GI symptomatology can be analogous with irritable bowel syndrome, where fermentable oligosaccharide, disaccharide, monosaccharide and polyols (FODMAP) reduction has demonstrated efficacy. This study investigated the effects of low FODMAP (LFOD) diet on GI distress parameters in runners with a history of non-clinical exercise-associated GI symptoms. METHODS: Eleven recreationally competitive runners (5 males, 6 females; 5km personal best 23:00±4:02 min:sec) participated in the study...
September 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28888718/the-frail-fail-increased-mortality-and-post-operative-complications-in-orthopaedic-trauma-patients
#12
CatPhuong Cathy L Vu, Robert P Runner, William M Reisman, Mara L Schenker
OBJECTIVE: The burgeoning elderly population calls for a robust tool to identify patients with increased risk of mortality and morbidity. This paper investigates the utility of the MFI as a predictor of morbidity and mortality in orthopaedic trauma patients. DESIGN: Retrospective review of the NSQIP database to identify patients age 60 and above who underwent surgery for pelvis and lower extremity fractures between 2005 and 2014. MAIN OUTCOMES AND MEASURES: For each patient, an MFI score was calculated using NSQIP variables...
August 18, 2017: Injury
https://www.readbyqxmd.com/read/28887404/flowering-versus-runnering-uncovering-the-protein-behind-a-trait-that-matters-in-strawberry
#13
Jennifer A Lockhart
No abstract text is available yet for this article.
September 8, 2017: Plant Cell
https://www.readbyqxmd.com/read/28887210/can-half-marathon-affect-overall-health-the-yin-yang-of-sport
#14
Luca Dalle Carbonare, Marcello Manfredi, Giuseppe Caviglia, Eleonora Conte, Elisa Robotti, Emilio Marengo, Samuele Cheri, Francesco Zamboni, Daniele Gabbiani, Michela Deiana, Daniela Cecconi, Federico Schena, Monica Mottes, Maria Teresa Valenti
Physical activity improves overall health and counteracts metabolic pathologies. Adipose tissue and bone are important key targets of exercise; the prevalence of diseases associated with suboptimal physical activity levels has increased in recent times as a result of lifestyle changes. Mesenchymal stem cells (MSCs) differentiation in either osteogenic or adipogenic lineage is regulated by many factors. Particularly, the expression of master genes such as RUNX2 and PPARγ2 is essential for MSC commitment to osteogenic or adipogenic differentiation, respectively...
September 5, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28874507/a-specific-gibberellin-20-oxidase-dictates-the-flowering-runnering-decision-in-diploid-strawberry
#15
Tracey Tenreira, Maria Joao Pimenta Lange, Theo Lange, Cécile Bres, Marc Labadie, Amparo Monfort, Michel Hernould, Christophe Rothan, Beatrice Denoyes
Asexual and sexual reproduction occur jointly in many angiosperms. Stolons (elongated stems) are used for asexual reproduction in the crop species potato (Solanum tuberosum) and strawberry (Fragaria spp.), where they produce tubers and clonal plants, respectively. In strawberry, stolon production is essential for vegetative propagation at the expense of fruit yield, but the underlying molecular mechanisms are unknown. Here, we show that the stolon-deficiency trait of the runnerless (r) natural mutant in woodland diploid strawberry (Fragaria vesca) is due to a deletion in the active site of a gibberellin (GA) 20-oxidase (GA20ox) gene, which is expressed primarily in the axillary meristem dome and primordia and in developing stolons...
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28872385/new-records-in-human-power
#16
Thomas Haugen, Gøran Paulsen, Stephen Seiler, Øyvind Sandbakk
Maximal aerobic and anaerobic power are crucial performance determinants in most sports disciplines. Numerous studies have published power data from elite athletes over the years, particularly in runners, cyclists, rowers and cross-country skiers. In this invited review, we define the current "world records" in human upper limits of aerobic and anaerobic power. Currently, V̇O2max values of ~7.5 and 7.0 L·min(-1) in male cross-country (XC) skiers and rowers, respectively, and/or ~90 ml·kg(-1)·min(-1) in XC skiers, cyclists and runners can be described as upper human limits for aerobic power...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28869746/physiological-intensity-profile-exercise-load-and-performance-predictors-of-a-65-km-mountain-ultra-marathon
#17
Alessandro Fornasiero, Aldo Savoldelli, Damiano Fruet, Gennaro Boccia, Barbara Pellegrini, Federico Schena
The aims of the study were to describe the physiological profile of a 65-km (4000-m cumulative elevation gain) running mountain ultra-marathon (MUM) and to identify predictors of MUM performance. Twenty-three amateur trail-runners performed anthropometric evaluations and an uphill graded exercise test (GXT) for VO2max, ventilatory thresholds (VTs), power outputs (PMax, PVTs) and heart rate response (HRmax, HR@VTs). Heart rate (HR) was monitored during the race and intensity was expressed as: Zone I (<VT1), Zone II (VT1-VT2), Zone III (>VT2) for exercise load calculation (training impulse, TRIMP)...
September 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28865018/making-of-a-synapse-recurrent-roles-of-drebrin-a-at-excitatory-synapses-throughout-life
#18
Chiye Aoki, Ang D Sherpa
Mature excitatory synapses are composed of more than 1500 proteins postsynaptically and hundreds more that operate presynaptically. Among them, drebrin is an F-actin-binding protein that increases noticeably during juvenile synaptogenesis. Electron microscopic analysis reveals that drebrin is highly enriched specifically on the postsynaptic side of excitatory synapses. Since dendritic spines are structures specialized for excitatory synaptic transmission, the function of drebrin was probed by analyzing the ultrastructural characteristics of dendritic spines of animals with genetic deletion of drebrin A (DAKO), the adult isoform of drebrin...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28860876/effect-of-age-and-performance-on-pacing-of-marathon-runners
#19
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/28859414/physiological-and-biomechanical-mechanisms-of-distance-specific-human-running-performance
#20
M A Thompson
Running events range from 60-m sprints to ultra-marathons covering 100 miles or more, which presents an interesting diversity in terms of the parameters for successful performance. Here, we review the physiological and biomechanical variations underlying elite human running performance in sprint to ultramarathon distances. Maximal running speeds observed in sprint disciplines are achieved by high vertical ground reaction forces applied over short contact times. To create this high force output, sprint events rely heavily on anaerobic metabolism, as well as a high number and large cross-sectional area of type II fibers in the leg muscles...
August 1, 2017: Integrative and Comparative Biology
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