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https://www.readbyqxmd.com/read/29138757/effects-of-marathon-running-on-aerobic-fitness-and-performance-in-recreational-runners-one-week-after-a-race
#1
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://www.readbyqxmd.com/read/29114512/the-runsmart-training-program-effect-on-oxygen-consumption-and-lower-extremity-biomechanics-during-running
#2
Jennifer Bogulski, Steven Gonser, Doug Bush, Rachel Bugner, Lindsey Clark, Lisa Farrell, Kristen Swanson, Michael David Ross
As recreational running continues to gain popularity, more individuals are seeking ways to improve running performance. RunSmart is a running intervention program designed to enhance a runner's form. In addition to correcting flaws in a runner's form, RunSmart offers the opportunity for runners to continue a regular regimen while slowly integrating changes in form. The purpose of this case series was twofold: to determine if the RunSmart program coincides with improvements in oxygen consumption (VO2), a variable often associated with better running performance times, and to evaluate the RunSmart program in regard to enhancing gait biomechanics...
August 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29112626/effects-of-ad-libitum-low-carbohydrate-high-fat-dieting-in-middle-age-male-runners
#3
Alexander J Heatherly, Lauren G Killen, Ashton F Smith, Hunter S Waldman, Angela Hollingsworth, Christie L Seltmann, Eric K O'Neal
PURPOSE: This study examined the effects of a 3-week ad libitum high fat (~70% of calories), low carbohydrate (<50 g/day) diet (LCHF) on markers of endurance performance in middle-aged, recreationally competitive male runners. METHODS: All subjects (n = 8) following their normal HC diet had anthropometric measures assessed and completed 5, 10-min running bouts at multiple individual race paces in the heat while physiological, metabolic variables and perceptual responses were recorded...
November 6, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29101708/dose-response-effect-of-photobiomodulation-therapy-on-neuromuscular-economy-during-submaximal-running
#4
Rodolfo André Dellagrana, Mateus Rossato, Raphael Luiz Sakugawa, Caetano Decian Lazzari, Bruno Manfredini Baroni, Fernando Diefenthaeler
The purpose of this study was to verify the photobiomodulation therapy (PBMT) effects with different doses on neuromuscular economy during submaximal running tests. Eighteen male recreational runners participate in a randomized, double-blind, and placebo-controlled trial, which each participant was submitted to the same testing protocol in five conditions: control, placebo, and PBMT with doses of 15, 30, and 60 J per site (14 sites in each lower limb). The submaximal running was performed at 8 and 9 km h(-1) during 5 min for each velocity...
November 3, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29100250/gait-retraining-from-rearfoot-strike-to-forefoot-strike-does-not-change-running-economy
#5
Jenevieve Lynn Roper, Deborah Doerfler, Len Kravitz, Janet S Dufek, Christine Mermier
Gait retraining is a method for management of patellofemoral pain, which is a common ailment among recreational runners. The present study investigated the effects of gait retraining from rearfoot strike to forefoot strike on running economy, heart rate, and respiratory exchange ratio immediately post-retraining and one-month post-retraining in recreational runners with patellofemoral pain. Knee pain was also measured. Sixteen participants (n=16) were randomly placed in the control (n=8) or experimental (n=8) group...
November 3, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29099654/control-of-impact-loading-during-distracted-running-before-and-after-gait-retraining-in-runners
#6
Roy T H Cheung, Winko W An, Ivan P H Au, Janet H Zhang, Zoe Y S Chan, Aislinn J MacPhail
Gait retraining using visual biofeedback has been reported to reduce impact loading in runners. However, most of the previous studies did not adequately examine the level of motor learning after training, as the modified gait pattern was not tested in a dual-task condition. Hence, this study sought to compare the landing peak positive acceleration (PPA) and vertical loading rates during distracted running before and after gait retraining. Sixteen recreational runners underwent a two-week visual biofeedback gait retraining program for impact loading reduction, with feedback on the PPA measured at heel...
November 3, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29083360/management-and-treatment-of-femoral-neck-stress-fractures-in-recreational-runners-a-report-of-four-cases-and-review-of-the-literature
#7
Carlo Biz, Antonio Berizzi, Alberto Crimì, Chiara Marcato, Giulia Trovarelli, Pietro Ruggieri
Femoral neck stress fractures (FNSFs) in healthy young subjects are uncommon and most prevalent among long-distance runners and military recruits. Women seem to be at higher risk of developing stress fractures because of possible eating disorders followed by amenorrhea and osteoporosis. This case report describes four young and middle-aged, active female recreational runners who developed stress fractures of the femoral neck. In three of them, with a clinical history of persistent pain in the groin region, which worsened during training, early diagnosis by MRI was considered essential in detecting the fractures...
October 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29069224/effects-of-a-4-week-high-intensity-interval-training-on-pacing-during-5-km-running-trial
#8
R Silva, M Damasceno, R Cruz, M D Silva-Cavalcante, A E Lima-Silva, D J Bishop, R Bertuzzi
This study analyzed the influence of a 4-week high-intensity interval training on the pacing strategy adopted by runners during a 5-km running trial. Sixteen male recreational long-distance runners were randomly assigned to a control group (CON, n=8) or a high-intensity interval training group (HIIT, n=8). The HIIT group performed high-intensity interval-training twice per week, while the CON group maintained their regular training program. Before and after the training period, the runners performed an incremental exercise test to exhaustion to measure the onset of blood lactate accumulation, maximal oxygen uptake (VO2max), and peak treadmill speed (PTS)...
October 19, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29062393/running-injuries-in-the-participants-of-ljubljana-marathon
#9
Luka Vitez, Petra Zupet, Vesna Zadnik, Matej Drobnič
INTRODUCTION: The aim of our study was to determine the self-reported incidence and prevalence of running-related injuries among participants of the 18(th) Ljubljana Marathon, and to identify risk factors for their occurrence. METHODS: A customized questionnaire was distributed over registration. Independent samples of t-test and chi-square test were used to calculate the differences in risk factors occurrence in the injured and non-injured group. Factors which appeared significantly more frequently in the injured group were included further into multiple logistic regression analysis...
October 2017: Zdravstveno Varstvo
https://www.readbyqxmd.com/read/29054746/the-influence-of-cadence-and-shoes-on-patellofemoral-joint-kinetics-in-runners-with-patellofemoral-pain
#10
Jason Bonacci, Michelle Hall, Aaron Fox, Natalie Saunders, Tristan Shipsides, Bill Vicenzino
OBJECTIVES: To determine the effect of a combination of a minimalist shoe and increased cadence on measures of patellofemoral joint loading during running in individuals with patellofemoral pain. DESIGN: Within-participant repeated measures with four conditions presented in random order: (1) control shoe at preferred cadence; (2) control shoe with +10% cadence; (3) minimalist shoe at preferred cadence; (4) minimalist shoe with +10% cadence. METHODS: Fifteen recreational runners with patellofemoral pain ran on an instrumented treadmill while three-dimensional motion capture data were acquired...
October 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29023535/effect-of-protein-and-carbohydrate-solutions-on-running-performance-and-cognitive-function-in-female-recreational-runners
#11
RANDOMIZED CONTROLLED TRIAL
Zhaohuan Gui, Fenghua Sun, Gangyan Si, Yajun Chen
This study compared the effects of a carbohydrate-electrolyte-protein solution (CEPS, 2% protein plus 4% carbohydrate), carbohydrate-electrolyte solution (CES, 6% carbohydrate), and noncaloric sweetened placebo (PLA) on both 21-km running performance and cognitive function. Eleven female recreational endurance runners performed a 21-km time-trial running on three occasions, separated by at least 28 days. In a randomized cross-over design, they ingested CEPS, CES, or PLA at a rate of 150 mL every 2.5 km with no time feedback...
2017: PloS One
https://www.readbyqxmd.com/read/28900568/can-runners-perceive-changes-in-heel-cushioning-as-the-shoe-ages-with-increased-mileage
#12
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
#13
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/28828386/time-evolution-of-sublingual-microcirculatory-changes-in-recreational-marathon-runners
#14
Andrius Pranskunas, Justina Arstikyte, Zivile Pranskuniene, Jurga Bernatoniene, Inga Kiudulaite, Egle Vaitkaitiene, Dinas Vaitkaitis, Marius Brazaitis
We aimed to evaluate changes in sublingual microcirculation induced by a marathon race. Thirteen healthy male controls and 13 male marathon runners volunteered for the study. We performed sublingual microcirculation, using a Cytocam-IDF device (Braedius Medical, Huizen, Netherlands), and systemic hemodynamic measurements four times: 24 hours prior to their participation in the Kaunas Marathon (distance: 41.2 km), directly after finishing the marathon, 24 hours after the marathon, and one week after the marathon...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28802455/from-control-to-causation-validating-a-complex-systems-model-of-running-related-injury-development-and-prevention
#15
A Hulme, P M Salmon, R O Nielsen, G J M Read, C F Finch
INTRODUCTION: There is a need for an ecological and complex systems approach for better understanding the development and prevention of running-related injury (RRI). In a previous article, we proposed a prototype model of the Australian recreational distance running system which was based on the Systems Theoretic Accident Mapping and Processes (STAMP) method. That model included the influence of political, organisational, managerial, and sociocultural determinants alongside individual-level factors in relation to RRI development...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28775185/frequency-of-exercise-induced-st-t-segment-deviations-and-cardiac-arrhythmias-in-recreational-endurance-athletes-during-a-marathon-race-results-of-the-prospective-observational-berlin-beat-of-running-study
#16
Juliane Herm, Agnieszka Töpper, Alexander Wutzler, Claudia Kunze, Matthias Krüll, Lars Brechtel, Jürgen Lock, Jochen B Fiebach, Peter U Heuschmann, Wilhelm Haverkamp, Matthias Endres, Gerhard Jan Jungehulsing, Karl Georg Haeusler
OBJECTIVES: While regular physical exercise has many health benefits, strenuous physical exercise may have a negative impact on cardiac function. The 'Berlin Beat of Running' study focused on feasibility and diagnostic value of continuous ECG monitoring in recreational endurance athletes during a marathon race. We hypothesised that cardiac arrhythmias and especially atrial fibrillation are frequently found in a cohort of recreational endurance athletes. The main secondary hypothesis was that pathological laboratory findings in these athletes are (in part) associated with cardiac arrhythmias...
August 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28772336/the-effect-of-clinical-pilates-on-functional-movement-in-recreational-runners
#17
Anna Laws, Sean Williams, Cassie Wilson
Biomechanical imbalances and inefficient functional movements are considered contributing factors to running-related injuries. Clinical Pilates uses a series of exercises focused on retraining normal movement patterns. This study investigated whether a 6-week course of Clinical Pilates improves functional movement and thereby, potentially, reduces the risk of running-related injuries associated with movement dysfunction. A modified functional movement screen was used to analyze the functional movement ability of forty runners...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28767525/comparison-of-lower-limb-and-back-exercises-for-runners-with-chronic-low-back-pain
#18
Congcong Cai, Yifan Yang, Pui W Kong
INTRODUCTION: This single-blind randomized trial was conducted to compare the treatment effect of lower limb (LL) exercises versus conventional lumbar extensor (LE) and lumbar stabilization (LS) exercises in recreational runners with chronic low back pain (cLBP), because there is currently no specific protocol for managing runners with cLBP. METHODS: Eighty-four recreational runners with cLBP were allocated to three exercise groups (LL, LE, LS) for an 8-wk intervention...
December 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28751372/energy-cost-of-running-instability-evaluated-with-wearable-trunk-accelerometry
#19
Kurt Heinrich Schütte, Saint Sackey, Rachel Venter, Benedicte Vanwanseele
Maintaining stability under dynamic conditions is an inherent challenge to bipedal running. This challenge may impose an energetic cost (Ec) thus hampering endurance running performance, yet the underlying mechanisms are not clear. Wireless tri-axial trunk accelerometry is a simple tool that could be used to unobtrusively evaluate these mechanisms. Here, we test a cost of instability hypothesis by examining the contribution of trunk accelerometry-based measures (tri-axial root mean square, step and stride regularity, and sample entropy) to inter-individual variance in Ec (kcal...
July 27, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28744226/the-mucosal-immune-function-is-not-compromised-during-a-period-of-high-intensity-interval-training-is-it-time-to-reconsider-an-old-assumption
#20
Dennis-Peter Born, Christoph Zinner, Billy Sperlich
Purpose: The aim of the study was to evaluate the mucosal immune function and circadian variation of salivary cortisol, Immunoglobin-A (sIgA) secretion rate and mood during a period of high-intensity interval training (HIIT) compared to long-slow distance training (LSD). Methods: Recreational male runners (n = 28) completed nine sessions of either HIIT or LSD within 3 weeks. The HIIT involved 4 × 4 min of running at 90-95% of maximum heart rate interspersed with 3 min of active recovery while the LSD comprised of continuous running at 70-75% of maximum heart rate for 60-80 min...
2017: Frontiers in Physiology
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