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https://www.readbyqxmd.com/read/27901340/effects-of-a-trail-mountain-race-on-neuromuscular-performance-and-hydration-status-in-trained-runners
#1
Ernest Baiget, Javier Peña, Xantal Borràs, Toni Caparrós, José L López, Francesc Marin, Jordi Coma, Eduard Comerma
BACKGROUND: The aims of this study were (a) to examine the effects of a trail mountain race (TMR) on hydration status and neuromuscular performance of recreational trail runners and (b) to determine the relationship among these parameters, subject's characteristics and competitive performance. METHODS: 35 male recreational trail runners (age, 38.1 ± 9.5 years; height, 177.3 ± 5.8 cm; body mass, 73.8 ± 8.4 kg; mean ± SD) were assessed before and after a 21.1 km TMR...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27900880/associations-of-nicotinamide-n-methyltransferase-gene-single-nucleotide-polymorphisms-with-sport-performance-and-relative-maximal-oxygen-uptake
#2
Jiang-Hua Li, Wei Chen, Xiao-Juan Zhu, Ya-Jun Lin, Li-Qiang Qiu, Can-Xin Cai, Ya-Hui Wang, Qun Xiong, Fei Chen, Li-Hui Chen
To observe the associations between single nucleotide polymorphisms (SNPs) of nicotinamide N-methyltransferase (NNMT) gene and sport performance and to analyse genotype associations of the associated SNPs with sport performance and relative maximal oxygen uptake ([Formula: see text]). Participants were selected from 685 Chinese Han male college students. The completion times of a 1000-m run and a 50-m run were used to reflect sport performance, respectively. Nineteen tagSNPs were genotyped with Polymerase chain reaction-ligase detection reaction...
November 30, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27900173/how-accurate-are-the-wrist-based-heart-rate-monitors-during-walking-and-running-activities-are-they-accurate-enough
#3
Sarah E Stahl, Hyun-Sung An, Danae M Dinkel, John M Noble, Jung-Min Lee
BACKGROUND: Heart rate (HR) monitors are valuable devices for fitness-orientated individuals. There has been a vast influx of optical sensing blood flow monitors claiming to provide accurate HR during physical activities. These monitors are worn on the arm and wrist to detect HR with photoplethysmography (PPG) techniques. Little is known about the validity of these wearable activity trackers. AIM: Validate the Scosche Rhythm (SR), Mio Alpha (MA), Fitbit Charge HR (FH), Basis Peak (BP), Microsoft Band (MB), and TomTom Runner Cardio (TT) wireless HR monitors...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27893484/effects-of-pelvic-and-core-strength-training-on-high-school-cross-country-race-times
#4
Anne W Clark, Maggie K Goedeke, Rina Namvong, Derek E Rockwell, Bryan Jason Lehecka, Robert C Manske, Barbara S Smith
Effects of pelvic and core strength training on high school cross-country race times: A randomized control trial.There is only limited research examining the effect of pelvic and core strength training on running performance. Pelvic and core muscle fatigue is believed to contribute to excess motion along frontal and transverse planes which decreases efficiency in normal sagittal plane running motions. The purpose of this study was to determine if adding a six week pelvic and core strengthening program resulted in decreased race times in high school cross-country runners...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27891180/the-effect-of-foot-orthoses-with-forefoot-cushioning-or-metatarsal-pad-on-forefoot-peak-plantar-pressure-in-running
#5
Michaela Hähni, Anja Hirschmüller, Heiner Baur
BACKGROUND: Foot orthoses are frequently used in sports for the treatment of overuse complaints with sufficient evidence available for certain foot-related overuse pathologies like plantar fasciitis, rheumatoid arthritis and foot pain (e.g., metatarsalgia). One important aim is to reduce plantar pressure under prominent areas like metatarsal heads. For the forefoot region, mainly two common strategies exist: metatarsal pad (MP) and forefoot cushioning (FC). The aim of this study was to evaluate which of these orthosis concepts is superior in reducing plantar pressure in the forefoot during running...
2016: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/27886380/acceptability-and-preference-drivers-of-freshly-roasted-peanuts
#6
Shangci Wang, Koushik Adhikari, Yen-Con Hung
The objectives of this study were to determine and compare the sensory perceptions and aroma volatiles of 6 freshly roasted peanut samples and to explore the drivers of consumer acceptability. Normal-oleic Georgia 06G kernels (06G), high-oleic Georgia 13M kernels (13M), Georgia runner (mixed) in-shell (InR) & kernels (R), and Virginia (mixed) in-shell (InVA) & kernels (VA) were roasted to medium doneness for consumers, descriptive, and gas chromatography-mass spectroscopy (GC-MS) tests. For Virginia variety, InVA was preferred over VA...
November 25, 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27885098/energy-costs-and-performance-of-transfemoral-amputees-and-non-amputees-during-walking-and-running-a-pilot-study
#7
Larry J Mengelkoch, Jason T Kahle, M Jason Highsmith
BACKGROUND: Limited information is available concerning the effects of prosthetic foot components on energy costs and ambulatory performance for transfemoral amputees. OBJECTIVES: Compare energy costs (VO2; gait economy) and ambulatory performance (self-selected walking speeds, self-selected running speeds, peak running speeds) differences during walking and running for transfemoral amputees and matched, non-amputee runners. STUDY DESIGN: Repeated measures...
November 24, 2016: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/27879166/sex-differences-in-release-of-cardiac-troponin-t-after-endurance-exercise
#8
Zhaowei Kong, Jinlei Nie, Hua Lin, Keith George, Gang Zhao, Haifeng Zhang, Tomas K Tong, Qingde Shi
CONTEXT: Post-exercise cardiac troponin release has been extensively described in athletic groups but little attention has been given to any role of sex in mediating this phenomnenon. OBJECTIVE: We compared the release of cardiac troponin T (cTnT) after endurance running in training-experience, biological-age and maturity-matched young male and female runners. MATERIALS AND METHODS: Nineteen male (training history: 2.3±1.0 yr; mean age: 16...
November 23, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/27878382/ultra-marathon-100%C3%A2-km-in-an-islet-transplanted-runner
#9
Roberto Codella, Michela Adamo, Paola Maffi, Lorenzo Piemonti, Antonio Secchi, Livio Luzi
No abstract text is available yet for this article.
November 23, 2016: Acta Diabetologica
https://www.readbyqxmd.com/read/27876459/local-and-widespread-hyperalgesia-in-female-runners-with-patellofemoral-pain-are-influenced-by-running-volume
#10
Marcella Ferraz Pazzinatto, Danilo de Oliveira Silva, Juliana Pradela, Maira Bergamaschi Coura, Christian Barton, Fábio Mícolis de Azevedo
OBJECTIVES: To compare pressure pain threshold (PPT) around the knee (local hyperalgesia) and at a site remote to the knee (widespread hyperalgesia) between female runners with and without patellofemoral pain (PFP); and to evaluate the relationship between running volume, self-reported knee function and PPT measures. DESIGN: Cross-sectional study. METHODS: Twenty female runners with PFP and twenty pain-free female runners participated in the study...
November 11, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27875453/integrating-mental-health-into-primary-care
#11
Amy M Collins
As part of its Raise the Voice campaign to showcase nurses who are key players in transforming health care, the American Academy of Nursing has identified nurses they call edge runners-"practical innovators who have led the way in bringing new thinking and new methods to a wide range of health care challenges." This is the seventh in AJN's series of profiles of these nursing innovators. Read and be proud of what nurses can accomplish.
December 2016: American Journal of Nursing
https://www.readbyqxmd.com/read/27875261/the-apparently-contradictory-energetics-of-hopping-and-running-the-counter-intuitive-effect-of-constraints-resolves-the-paradox
#12
Anne K Gutmann, John E A Bertram
Metabolic rate appears to increase with rate of force application for running. Leg function during ground contact is similar in hopping and running so one might expect that this relationship would hold for hopping as well. Surprisingly, metabolic rate appeared to decrease with increasing force rate for hopping. However, this paradox is the result of comparing different cross sections of the metabolic cost landscapes for hopping and running. The apparent relationship between metabolic rate and force rate observed in treadmill running is likely not a fundamental characteristic of muscle physiology, but a result of runners responding to speed constraints, i...
November 10, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27856713/effect-of-increased-and-maintained-frequency-of-speed-endurance-training-on-performance-and-muscle-adaptations-in-runners
#13
Casper Skovgaard, Nicki Winfield Almquist, Jens Bangsbo
The aim of the study was, in runners accustomed to speed endurance training (SET), to examine the effect of increased and maintained frequency of SET on performance and muscular adaptations. After familiarization (FAM) to SET, eighteen male (n=14) and female (n=4) runners (VO2-max: 57.3±3.4 ml·min(-1); mean±SD) completed twenty sessions of maintained low-frequency (LF; every fourth day; n=7) or high-frequency (HF; every second day; n=11) SET (intervention period; INT). Before FAM as well as before and after INT, subjects completed a series of running tests and a biopsy from m...
November 17, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27855536/comparison-of-estimates-of-achilles-tendon-loading-from-inverse-dynamics-and-inverse-dynamics-based-static-optimisation-during-running
#14
Thomas Kernozek, Naghmeh Gheidi, Robert Ragan
Tendon stress may be one of the important risk factors for running-related tendon injury. Several methods have been used to estimate Achilles tendon (AT) loading during a human performance such as inverse dynamics (ID) and inverse dynamics-based static optimisation (IDSO). Our purpose was to examine differences between ID and IDSO estimates of AT loading during running. Kinematic data were captured simultaneously with kinetic data. Imaging of the AT cross-sectional area was performed with ultrasound for 17 healthy runners (height: 170...
November 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27853252/emergence-of-the-ability-to-perceive-dynamic-events-from-still-pictures-in-human-infants
#15
Nobu Shirai, Tomoko Imura
The ability to understand a visual scene depicted in a still image is among the abilities shared by all human beings. The aim of the present study was to examine when human infants acquire the ability to perceive the dynamic events depicted in still images (implied motion perception). To this end, we tested whether 4- and 5-month-old infants shifted their gaze toward the direction cued by a dynamic running action depicted in a still figure of a person. Results indicated that the 5- but not the 4-month-olds showed a significant gaze shift toward the direction implied by the posture of the runner (Experiments 1, 2, and 3b)...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852318/sacral-stress-fracture-in-an-amateur-rugby-player-a-case-report
#16
Yasuhiro Takahashi, Takashi Kobayashi, Naohisa Miyakoshi, Eiji Abe, Toshiki Abe, Kazuma Kikuchi, Yoichi Shimada
BACKGROUND: Sacral stress fracture is an uncommon cause of back pain. The majority of previously reported cases have been in runners. The purpose of this case report was to describe a case of sacral stress fracture in an amateur rugby player. CASE PRESENTATION: A healthy 18-year-old Japanese boy who was a rugby player presented with a 3-week history of lumbago. Sagittal and axial magnetic resonance imaging failed to reveal any reason for lumbago in his lumbar region...
November 16, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27852157/acute-and-chronic-effects-of-aquatic-treadmill-training-on-land-treadmill-running-kinematics-a-cross-over-and-single-subject-design-approach
#17
Eadric Bressel, Talin J Louder, James P Hoover, Luke C Roberts, Dennis G Dolny
The aim of this study was to determine if selected kinematic measures (foot strike index [SI], knee contact angle and overstride angle) were different between aquatic treadmill (ATM) and land treadmill (LTM) running, and to determine if these measures were altered during LTM running as a result of 6 weeks of ATM training. Acute effects were tested using 15 competitive distance runners who completed 1 session of running on each treadmill type at 5 different running speeds. Subsequently, three recreational runners completed 6 weeks of ATM training following a single-subject baseline, intervention and withdrawal experiment...
November 17, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27835659/effects-of-high-intensity-training-of-professional-runners-on-myocardial-hypertrophy-and-subclinical-atherosclerosis
#18
Célia Regina de Oliveira Bittencourt, Maria Cristina de Oliveira Izar, Valdir Lauro Schwerz, Rui Manuel Dos Santos Póvoa, Henrique Andrade Rodrigues Fonseca, Marília Izar Helfenstein Fonseca, Henrique Tria Bianco, Carolina Nunes França, Carlos Eduardo Dos Santos Ferreira, Francisco Antonio Helfenstein Fonseca
To evaluate the effects of long-term exposure to high-intensity training among professional runners on cardiac hypertrophy and subclinical atherosclerosis. Prospective study included runners of both sexes (n = 52) and age and gender matched controls (n = 57), without classical cardiovascular risk factors. Ventricular hypertrophy was quantified by echocardiography by linear method and carotid intima-media thickness (cIMT) by 2-D images obtained by ultrasonography. Endothelial function was evaluated by flow-mediated dilation (FMD)...
2016: PloS One
https://www.readbyqxmd.com/read/27835043/risk-factors-for-medial-tibial-stress-syndrome-in-active-individuals-an-evidence-based-review
#19
Zachary K Winkelmann, Dustin Anderson, Kenneth E Games, Lindsey E Eberman
: Reference/Citation: Hamstra-Wright KL, Bliven KC, Bay C. Risk factors for medial tibial stress syndrome in physically active individuals such as runners and military personnel: a systematic review and meta-analysis. Br J Sports Med. 2015;49(6)362-369. CLINICAL QUESTION:  What factors put physically active individuals at risk to develop medial tibial stress syndrome (MTSS)? DATA SOURCES:  The authors performed a literature search of CINAHL, the Cochrane Central Register of Controlled Trials, EMBASE, and MEDLINE from each database's inception to July 2013...
November 1, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27834504/redistribution-of-mechanical-work-at-the-knee-and-ankle-joints-during-fast-running-in-minimalist-shoes
#20
Joel T Fuller, Jonathan D Buckley, Margarita D Tsiros, Nicholas A T Brown, Dominic Thewlis
CONTEXT:  Minimalist shoes have been suggested as a way to alter running biomechanics to improve running performance and reduce injuries. However, to date, researchers have only considered the effect of minimalist shoes at slow running speeds. OBJECTIVE:  To determine if runners change foot-strike pattern and alter the distribution of mechanical work at the knee and ankle joints when running at a fast speed in minimalist shoes compared with conventional running shoes...
November 11, 2016: Journal of Athletic Training
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