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https://www.readbyqxmd.com/read/28732074/who-uses-running-apps-and-sports-watches-determinants-and-consumer-profiles-of-event-runners-usage-of-running-related-smartphone-applications-and-sports-watches
#1
Mark Janssen, Jeroen Scheerder, Erik Thibaut, Aarnout Brombacher, Steven Vos
Individual and unorganized sports with a health-related focus, such as recreational running, have grown extensively in the last decade. Consistent with this development, there has been an exponential increase in the availability and use of electronic monitoring devices such as smartphone applications (apps) and sports watches. These electronic devices could provide support and monitoring for unorganized runners, who have no access to professional trainers and coaches. The purpose of this paper is to gain insight into the characteristics of event runners who use running-related apps and sports watches...
2017: PloS One
https://www.readbyqxmd.com/read/28690018/adaptations-of-lumbar-biomechanics-after-four-weeks-of-running-training-with-minimalist-footwear-and-technique-guidance-implications-for-running-related-lower-back-pain
#2
Szu-Ping Lee, Joshua P Bailey, Jo Armour Smith, Stephanie Barton, David Brown, Talia Joyce
OBJECTIVES: To investigate the changes in lumbar kinematic and paraspinal muscle activation before, during, and after a 4-week minimalist running training. DESIGN: Prospective cohort study. SETTING: University research laboratory. PARTICIPANTS: Seventeen habitually shod recreational runners who run 10-50 km per week. MAIN OUTCOME MEASURES: During stance phases of running, sagittal lumbar kinematics was recorded using an electrogoniometer, and activities of the lumbar paraspinal muscles were assessed by electromyography...
December 2, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28682935/muscle-activity-and-physiological-responses-during-running-in-water-and-on-dry-land-at-submaximal-and-maximal-efforts
#3
Kenji Masumoto, Kyle C Mefferd, Riley Iyo, John A Mercer
We investigated muscle activity, oxygen uptake, heart rate, and rating of perceived exertion during running in water and on dry land at submaximal and maximal efforts. Eleven recreational runners performed deep water running (DWR) and treadmill running (TMR) graded exercise tests on separate days. On the third test day, the participants exercised at their 60%, 80%, and 100% of maximal oxygen uptake (VO2max) by matching specific stride frequencies or running speeds. VO2max, maximal heart rate (HRmax), and rating of perceived exertion at maximal effort (RPEmax) were measured...
July 3, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28678622/carbohydrate-mouth-rinse-does-not-affect-performance-during-a-60-min-running-race-in-women
#4
Costas Chryssanthopoulos, Christos Ziaras, Tanja Oosthuyse, Ioannis Lambropoulos, Paradisis Giorgios P, Elias Zacharogiannis, Anastassios Philippou, Maria Maridaki
This study examined the effect of carbohydrate mouth rinsing on endurance running performance in women. Fifteen female recreational endurance runners, who used no oral contraceptives, ran two races of 1-h duration on an indoor track (216-m length) at 18:00 h after an 8-h fast with a 7-days interval between races, corresponding to the 3(rd)-10th day of each premenopausal runner's menstrual cycle, or any day for the postmenopausal runners. In a double-blind random order, participants rinsed their mouth with 25 ml of either a 6...
July 5, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28661204/user-survey-of-3-ankle-braces-in-soccer-volleyball-and-running-which-brace-fits-best
#5
Kasper Janssen, Anjulie Van Den Berg, Willem Van Mechelen, Evert Verhagen
CONTEXT:   Recurrence rates for ankle sprains are high. Therefore, preventive measures such as ankle bracing during sports are recommended. OBJECTIVE:   To systematically evaluate the perceived ease of use, quality, comfort, stability, and hindrance of and the overall satisfaction with 3 contemporary brace types in 3 types of sports. DESIGN:   Randomized comparative user survey. SETTING:   Recreational sports: soccer, volleyball, and running...
June 29, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28611674/is-marathon-training-harder-than-the-ironman-training-an-eco-method-comparison
#6
Jonathan Esteve-Lanao, Diego Moreno-Pérez, Claudia A Cardona, Eneko Larumbe-Zabala, Iker Muñoz, Sergio Sellés, Roberto Cejuela
Purpose: To compare the absolute and relative training load of the Marathon (42k) and the Ironman (IM) training in recreational trained athletes. Methods: Fifteen Marathoners and Fifteen Triathletes participated in the study. Their performance level was the same relative to the sex's absolute winner at the race. No differences were presented neither in age, nor in body weight, height, BMI, running VO2max max, or endurance training experience (p > 0.05). They all trained systematically for their respective event (IM or 42k)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28581678/ttn-genotype-is-associated-with-fascicle-length-and-marathon-running-performance
#7
Georgina K Stebbings, Alun G Williams, Adam J Herbert, Sarah J Lockey, Shane M Heffernan, Robert M Erskine, Christopher I Morse, Stephen H Day
Titin provides a molecular blueprint for muscle sarcomere assembly and sarcomere length can vary according to titin isoform expression. If variations in sarcomere length influence muscle fascicle length, this may provide an advantage for running performance. Thus the aim of this study was to investigate if the titin (TTN) rs10497520 polymorphism was associated with muscle fascicle length in recreationally active men (RA; n = 137) and marathon personal best time in male marathon runners (MR; n = 141). Fascicle length of the vastus lateralis was assessed in vivo using B-mode ultrasonography at 50% of muscle length in RA...
June 5, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28575753/foot-muscle-morphology-is-related-to-center-of-pressure-sway-and-control-mechanisms-during-single-leg-standing
#8
Xianyi Zhang, Kurt Heinrich Schütte, Benedicte Vanwanseele
Maintaining balance is vitally important in everyday life. Investigating the effects of individual foot muscle morphology on balance may provide insights into neuromuscular balance control mechanisms. This study aimed to examine the correlation between the morphology of foot muscles and balance performance during single-leg standing. Twenty-eight recreational runners were recruited in this study. An ultrasound device was used to measure the thickness and cross-sectional area of three intrinsic foot muscles (abductor hallucis, flexor digitorum brevis and quadratus plantae) and peroneus muscles...
May 25, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28558847/ultrasound-characteristics-of-the-mid-portion-of-the-achilles-tendon-in-runners-a-systematic-review-protocol
#9
Prue Molyneux, Matthew Carroll, Sarah Stewart, Angela Brenton-Rule, Keith Rome
BACKGROUND: Achilles tendinopathy is one of the most common overuse injuries in recreational and competitive runners, yet the clinical significance and frequency of abnormal sonographic characteristics in runners remains unclear. This paper presents a protocol for a systematic review which aims to assess existing literature which has employed ultrasonography to evaluate characteristics of the mid-portion of the Achilles tendon in runners. METHODS: An electronic literature search will be conducted using the following electronic databases: MEDLINE, CINAHL and SPORTDiscus...
May 30, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28543791/the-association-between-eccentric-hip-abduction-strength-and-hip-and-knee-angular-movements-in-recreational-male-runners-an-explorative-study
#10
René B K Brund, Sten Rasmussen, Rasmus O Nielsen, Uwe G Kersting, Uffe Laessoe, Michael Voigt
Weak hip abductors may be related with increased hip adduction and knee abduction angular movement, which may be risk factors of lower extremity injuries. Since the role of eccentric hip abduction strength (EHAS) on hip adduction angular movement and the knee abduction angular movement (KABD) remains unclear and the purpose of the present study was to explore the association between EHAS and hip- and knee angular movement. In 100 healthy male recreational runners, EHAS was quantified using an isokinetic dynamometer, while hip- and knee angular movement were collected using pressure sensitive treadmill and Codamotion active marker system...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28515696/the-reliability-and-validity-of-a-four-minute-running-time-trial-in-assessing-formula-see-text-max-and-performance
#11
Kerry McGawley
Introduction: Traditional graded-exercise tests to volitional exhaustion (GXTs) are limited by the need to establish starting workloads, stage durations, and step increments. Short-duration time-trials (TTs) may be easier to implement and more ecologically valid in terms of real-world athletic events. The purpose of the current study was to assess the reliability and validity of maximal oxygen uptake ([Formula: see text]max) and performance measured during a traditional GXT (STEP) and a four-minute running time-trial (RunTT)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28512433/reported-hydration-beliefs-and-behaviors-without-effect-on-plasma-sodium-in-endurance-athletes
#12
Daniela Chlíbková, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle, Josef Bednář
Purpose: Little information is available on the association of hydration beliefs and behaviors in endurance athletes and exercise-associated hyponatremia (EAH). The aim of the present study was to determine hydration beliefs and behaviors in endurance athletes. Method: A 100 and 38 recreational athletes [107 mountain bikers (MTBers) and 31 runners] competing in seven different endurance and ultra-endurance races completed pre- and post-race questionnaires, and a subgroup of 113 (82%) participants (82 MTBers and 31 runners) also provided their blood samples...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28504066/the-association-of-recreational-and-competitive-running-with-hip-and-knee-osteoarthritis-a-systematic-review-and-meta-analysis
#13
Eduard Alentorn-Geli, Kristian Samuelsson, Volker Musahl, Cynthia L Green, Mohit Bhandari, Jón Karlsson
Study Design Systematic review and meta-analysis. Background Running is a healthy and popular activity worldwide, but data regarding its association with osteoarthritis (OA) are conflicting. Objectives To evaluate the association of hip and knee OA with running and to explore the influence of running intensity on this association. Methods PubMed, Embase, and Cochrane Library databases were used to identify studies investigating the occurrence of OA of the hip and/or knee among runners. A meta-analysis of studies comparing this occurrence between runners and controls (sedentary, nonrunning individuals) was conducted...
June 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28462571/effects-of-minimal-dose-of-strength-training-on-running-performance-in-female-recreational-runners
#14
Michal Štohanzl, Jiri Baláš, Nick Draper
BACKGROUND: The purpose of this study was to analyse the extent to which minimal dose strength training would elicit improvements in running performance for female recreational runners. METHODS: Forty-one female recreational runners were randomly assigned to one of three groups (endurance running [E] n=14; combined endurance running and strength training program once [ES30] n=14 and twice a week [ES60] n=13, respectively). During the 10-week training program, the E group completed 3 hours of continuous endurance running per week; ES30 completed 2 ½ hours of continuous endurance running and 1 x 30 min of strength training per week, while ES60 group completed 2 hours of continuous endurance running and 2x30 min of strength training per week...
April 28, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28459289/is-there-an-optimum-speed-for-economical-running
#15
Matthew I Black, Joseph C Handsaker, Sam J Allen, Stephanie E Forrester, Jonathan P Folland
The influence of running speed and sex on running economy is unclear and may have been confounded by measurements of oxygen cost that do not account for known differences in substrate metabolism, across a limited range of speeds, and differences in performance standard. Therefore, this study assessed the energy cost of running over a wide-range of speeds in high-level and recreational runners to investigate the effect of speed (considered in absolute and relative terms) and sex (males vs. females of equivalent performance standard) on running economy...
May 1, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28446388/medial-shoe-ground-pressure-and-specific-running-injuries-a-1-year-prospective-cohort-study
#16
René B K Brund, Sten Rasmussen, Rasmus O Nielsen, Uwe G Kersting, Uffe Laessoe, Michael Voigt
OBJECTIVES: Achilles tendinitis, plantar fasciopathy and medial tibial stress syndrome injuries (APM-injuries) account for approximately 25% of the total number of running injuries amongst recreational runners. Reports on the association between static foot pronation and APM-injuries are contradictory. Possibly, dynamic measures of pronation may display a stronger relationship with the risk of APM-injuries. Therefore, the purpose of the present study was to investigate if running distance until the first APM-injury was dependent on the foot balance during stance phase in recreational male runners...
April 15, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28426511/an-evaluation-of-time-trial-based-predictions-of-v-combining-dot-above-o2max-and-recommended-training-paces-for-collegiate-and-recreational-runners
#17
E M Scudamore, V W Barry, J M Coons
The purpose of the current study was to determine the accuracy of Jack Daniels' VDOT Running Calculator for the prediction of V[Combining Dot Above]O2max, and recommendations of interval and training paces (pIN & pTH) in samples of NCAA Division 1 track athletes (ATH, n = 11) and recreational runners (REC; n = 9). Predicted variable data were obtained using results from indoor 5km time-trials. Data from the VDOT calculator was compared to laboratory tested V[Combining Dot Above]O2max, pace at V[Combining Dot Above]O2max (V[Combining Dot Above]O2maxpace), and lactate threshold pace (LTpace)...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28390293/comparison-of-foot-muscle-morphology-and-foot-kinematics-between-recreational-runners-with-normal-feet-and-with-asymptomatic-over-pronated-feet
#18
Xianyi Zhang, Jeroen Aeles, Benedicte Vanwanseele
Over-pronated feet are common in adults and are associated with lower limb injuries. Studying the foot muscle morphology and foot kinematic patterns is important for understanding the mechanism of over-pronation related injuries. The aim of this study is to compare the foot muscle morphology and foot inter-segmental kinematics between recreational runners with normal feet and those with asymptomatic over-pronated feet. A total of 26 recreational runners (17 had normal feet and 9 had over-pronated feet) participated in this study and their foot type was assessed using the 6-item Foot Posture Index...
May 2017: Gait & Posture
https://www.readbyqxmd.com/read/28382580/the-dynamics-of-cardiovascular-biomarkers-in-non-elite-marathon-runners
#19
Emma Roca, Lexa Nescolarde, Josep Lupón, Jaume Barallat, James L Januzzi, Peter Liu, M Cruz Pastor, Antoni Bayes-Genis
The number of recreational/non-elite athletes participating in marathons is increasing, but data regarding impact of endurance exercise on cardiovascular health are conflicting. This study evaluated 79 recreational athletes of the 2016 Barcelona Marathon (72% men; mean age 39 ± 6 years; 71% ≥35 years). Blood samples were collected at baseline (24-48 h before the race), immediately after the race (1-2 h after the race), and 48-h post-race. Amino-terminal pro-B type natriuretic peptide (NT-proBNP, a marker of myocardial strain), ST2 (a marker of extracellular matrix remodeling and fibrosis, inflammation, and myocardial strain), and high-sensitivity troponin T (hs-TnT, a marker of myocyte stress/injury) were assayed...
April 5, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28376678/whole-body-precooling-attenuates-the-extracellular-hsp72-il-6-and-il-10-responses-after-an-acute-bout-of-running-in-the-heat
#20
Ben J Lee, Neil D Clarke, Joanne Hankey, Charles D Thake
The impact of whole-body precooling on the extracellular heat shock protein 72 (eHSP72) and cytokine responses to running in the heat is undefined. The aim of this study was to determine whether precooling would attenuate post-exercise eHSP72 and cytokine responses. Eight male recreational runners completed two 90-minute bouts of running at 65% [Formula: see text]O2max in 32 ± 0.9°C and 47 ± 6 % relative humidity (RH) preceded by either 60-minutes of precooling in 20.3 ± 0.3°C water (COOL) or 60 min rest in an air-conditioned laboratory (20...
April 5, 2017: Journal of Sports Sciences
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