keyword
MENU ▼
Read by QxMD icon Read
search

Running economy

keyword
https://www.readbyqxmd.com/read/27923481/regulation-of-step-frequency-in-transtibial-amputee-endurance-athletes-using-a-running-specific-prosthesis
#1
Laura M Oudenhoven, Judith M Boes, Laura Hak, Gert S Faber, Han Houdijk
Running specific prostheses (RSP) are designed to replicate the spring-like behaviour of the human leg during running, by incorporating a real physical spring in the prosthesis. Leg stiffness is an important parameter in running as it is strongly related to step frequency and running economy. To be able to select a prosthesis that contributes to the required leg stiffness of the athlete, it needs to be known to what extent the behaviour of the prosthetic leg during running is dominated by the stiffness of the prosthesis or whether it can be regulated by adaptations of the residual joints...
November 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27901338/determinant-factors-of-peak-treadmill-speed-in-physically-active-men
#2
Leonardo Alves Pasqua, Mayara V Damasceno, Salomão Bueno, Alessandro M Zagatto, Gustavo G DE Araújo, Adriano E Lima-Silva, Rômulo Bertuzzi
BACKGROUND: The aim of the present study was to determine whether physiological factors and maximal dynamic strength are able to determine the peak treadmill speed (PTS) in physically active individuals. METHODS: One hundred and fifty physically active healthy males voluntarily visit the laboratory on three separate occasions and underwent the following activities: first visit: IPAQ (short version), anthropometric measurements, and a maximal incremental test performed for physiological variables (maximal oxygen uptake ( ) and respiratory compensation point (RCP); second visit: constant speed test for running economy (RE) measurement, and familiarization with the maximum dynamic strength (1RM) test in the leg press exercise; third visit: 1RM test...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27885098/energy-costs-and-performance-of-transfemoral-amputees-and-non-amputees-during-walking-and-running-a-pilot-study
#3
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/27878709/is-income-relevant-for-health-expenditure-and-economic-growth-nexus
#4
Nadide Sevil Halıcı-Tülüce, İbrahim Doğan, Cüneyt Dumrul
This paper examines the relationship between health expenditure and economic growth using panel data consisting low and high-income countries. Using dynamic panel data methodology, we analyze twenty five high-income and nineteen low-income economies for the periods of 1995-2012 and 1997-2009, respectively. We find reciprocal relationship between health expenditure and economic growth in the short run and one-way causality from economic growth to public health expenditure in the long-run. In high-income countries, there is a two-way causality for both private and public health expenditures in the short-run, while in the long-run there is a one-way causality between economic growth and private health expenditures...
March 2016: Int J Health Econ Manag
https://www.readbyqxmd.com/read/27870300/the-lasting-health-impact-of-leaving-school-in-a-bad-economy-britons-in-the-1970s-recession
#5
Clementine Garrouste, Mathilde Godard
This paper investigates whether leaving school in a bad economy deteriorates health in the long run. It focuses on low-educated individuals in England and Wales who entered the labour market immediately after the 1973 oil crisis. Our identification strategy relies on the comparison of individuals who left school at the compulsory age, were born in the same year and had a similar quantity of education - but whose school-leaving behaviour in different years (hence, different economic conditions) was exogenously implied by compulsory schooling laws...
November 2016: Health Economics
https://www.readbyqxmd.com/read/27870297/household-financial-distress-and-initial-endowments-evidence-from-the-2008-financial-crisis
#6
Arna Olafsson
This paper studies in utero exposure to the 2008 financial crisis. Exploiting the sudden and unexpected collapse of the Icelandic economy, I find that first-trimester exposure to the crisis led to a sizable and significant reduction in birth weight, increased the probability of a low birth weight ( < 2500 g), and decreased the probability of a high birth weight ( > 4000 g). I also find evidence that the collapse reduced the sex ratio, indicating selection in utero due to maternal prenatal stress exposure...
November 2016: Health Economics
https://www.readbyqxmd.com/read/27861507/the-association-of-ace-genotypes-on-cardiorespiratory-variables-related-to-physical-fitness-in-healthy-men
#7
Salomão Bueno, Leonardo A Pasqua, Gustavo de Araújo, Adriano Eduardo Lima-Silva, Rômulo Bertuzzi
Aerobic power (VO2max), aerobic capacity (RCP), and running efficiency (RE) are important markers of aerobic fitness. However, the influence of the angiotensin converting enzyme (ACE) polymorphism on these markers has not been investigated in healthy individuals. One hundred and fifty physically active young men (age 25 ± 3 years; height 1.77 ± 0.06 m; body mass 76.6 ± 0.9 kg; VO2max 47.7 ± 5.5 ml·kg-1·min-1) visited the laboratory on two separate occasions, and performed the following tests: a) a maximal incremental treadmill test to determine VO2max and RCP, and b) two constant-speed running tests (10 km·h-1 and 12 km·h-1) to determine RE...
2016: PloS One
https://www.readbyqxmd.com/read/27856713/effect-of-increased-and-maintained-frequency-of-speed-endurance-training-on-performance-and-muscle-adaptations-in-runners
#8
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/27834674/what-is-running-economy-a-clinician-s-guide-to-key-concepts-applications-and-myths
#9
EDITORIAL
James M Smoliga
No abstract text is available yet for this article.
November 10, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27806012/acute-effects-of-plyometric-and-resistance-training-on-running-economy-in-trained-runners
#10
Richard T Marcello, Beau Kjerulf Greer, Anna E Greer
Results regarding the acute effects of plyometric and resistance training (PRT) on running economy (RE) are conflicting. Eight male collegiate distance runners (21 ± 1 years, 62.5 ± 7.8 ml/kg/min V[Combining Dot Above]O2 peak) completed V[Combining Dot Above]O2 peak and 1 repetition maximum (1RM) testing. Seven days later, subjects completed a 12 minute RE test at 60% and 80% V[Combining Dot Above]O2 peak, followed by a PRT protocol or a rested condition of equal duration (CON). The PRT protocol consisted of 3 sets of 5 repetitions at 85% 1RM for barbell squats, Romanian deadlifts, and barbell lunges; the same volume was utilized for resisted lateral lunges, box jumps, and depth jumps...
October 28, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27787334/temperate-performance-benefits-after-heat-but-not-combined-heat-and-hypoxic-training
#11
Erin L McCleave, Katie M Slattery, Rob Duffield, Philo U Saunders, Avish P Sharma, Stephen J Crowcroft, Aaron J Coutts
INTRODUCTION: Independent heat and hypoxic exposure can enhance temperate endurance performance in trained athletes, although their combined effects remain unknown. This study examined whether the addition of heat interval training during 'Live High, Train Low' (LHTL) hypoxic exposure would result in enhanced performance and physiological adaptations as compared to heat or temperate training. METHODS: Twenty-six well-trained runners completed three weeks of interval training assigned to one of three conditions: 1) LHTL hypoxic exposure plus heat training (H+H; 3000 m for 13 h·day, train at 33°C, 60% RH), 2) heat training with no hypoxic exposure (HOT, live at <600m and train at 33°C, 60% RH), or 3) temperate training with no hypoxic exposure (CONT; live at <600m and train at 14°C, 55% RH)...
October 27, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27776080/relationship-between-individualized-training-impulse-and-aerobic-fitness-measures-in-hurling-players-across-a-training-period
#12
Shane Malone, Kieran Collins
Malone, S and Collins, K. Relationship between individualized training impulse and aerobic fitness measures in Hurling players across a training period. J Strength Cond Res 30(11): 3140-3145, 2016-The current study examined the association between individual internal training load (individualized training impulse, iTRIMP) and aerobic fitness variables in male hurling players. Twenty hurling players (age, 25.5 ± 3.2 years; height, 178.9 ± 3.2 cm; body mass, 78.5 ± 4.5 kg) performed treadmill testing for V[Combining Dot Above]O2max, running economy (RE), and the speed at blood lactate concentrations of 2 mmol·L (S2) and 4 mmol·L (S4) on separate occasions before and after an 8-week training period...
November 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27757381/echinacea-supplementation-does-it-really-improve-aerobic-fitness
#13
Cory W Baumann, Dongmin Kwak
PURPOSE: Echinacea is an herbal supplement used by endurance athletes for its performance boosting properties. It is thought that Echinacea improves the blood's oxygen carrying capacity by increasing production of erythropoietin (EPO), a glycoprotein that regulates red blood cell formation. Subsequently, these changes would lead to an overall improvement in maximal oxygen uptake (VO2max) and running economy (RE), two markers of aerobic fitness. The purpose of this review is to briefly discuss the physiological variables associated with distance running performance and how these variables are influenced by Echinacea supplementation...
September 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/27747844/running-economy-measurement-norms-and-determining-factors
#14
Kyle R Barnes, Andrew E Kilding
Running economy (RE) is considered an important physiological measure for endurance athletes, especially distance runners. This review considers 1) how RE is defined and measured and 2) physiological and biomechanical factors that determine or influence RE. It is difficult to accurately ascertain what is good, average, and poor RE between athletes and studies due to variation in protocols, gas-analysis systems, and data averaging techniques. However, representative RE values for different caliber of male and female runners can be identified from existing literature with mostly clear delineations in oxygen uptake across a range of speeds in moderately and highly trained and elite runners...
December 2015: Sports Medicine—Open
https://www.readbyqxmd.com/read/27741056/differences-in-spatio-temporal-parameters-between-trained-runners-and-untrained-participants
#15
Josué Gómez-Molina, Ana Ogueta-Alday, Christopher Stickley, Jesus Camara Tobalina, Jon Cabrejas-Ugartondo, Juan García-López
The aim of this study was to compare the spatio-temporal parameters of trained runners and untrained participants with the same foot strike pattern (rearfoot) during running at controlled speeds. Twenty-one participants were classified in two groups according to their training experience: Trained (n=10, amateur runners with long distance training experience) and Untrained (n=11, healthy non-trained participants). Anthropometric variables were recorded, and the participants performed both a submaximal (between 9 and 15 km·h) and a graded exercise running test (from 6 km·h until exhaustion) on a treadmill...
October 6, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27712662/effect-of-stride-frequency-on-thermoregulatory-responses-during-endurance-running-in-distance-runners
#16
Tatsuro Amano, Masaki Ishitobi, Yukio Ogura, Yoshimitsu Inoue, Shunsaku Koga, Takeshi Nishiyasu, Narihiko Kondo
Changing stride frequency may influence oxygen uptake and heart rate during running as a function of running economy and central command. This study investigated the influence of stride frequency manipulation on thermoregulatory responses during endurance running. Seven healthy endurance runners ran on a treadmill at a velocity of 15km/h for 60min in a controlled environmental chamber (ambient temperature 27°C and relative humidity 50%), and stride frequency was manipulated. Stride frequency was intermittently manipulated by increasing and decreasing frequency by 10% from the pre-determined preferred frequency...
October 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27694242/from-anticipatory-corpse-to-posthuman-god
#17
Jeffrey P Bishop
The essays in this issue of JMP are devoted to critical engagement of my book, The Anticipatory Corpse The essays, for the most part, accept the main thrust of my critique of medicine. The main thrust of the criticism is whether the scope of the critique is too totalizing, and whether the proposed remedy is sufficient. I greatly appreciate these interventions because they allow me this occasion to respond and clarify, and to even further extend the argument of my book. In this response essay, I maintain that the regnant social imaginary of medicine is the regnant social imaginary of our time...
December 2016: Journal of Medicine and Philosophy
https://www.readbyqxmd.com/read/27631418/anthropometrics-and-body-composition-in-east-african-runners-potential-impact-on-performance
#18
Martin Mooses, Anthony C Hackney
Maximal oxygen uptake (VO2max), fractional utilization of VO2max during running and running economy (RE) are crucial factors for running success for all endurance athletes. Although evidence is limited, investigations of these key factors indicate that the East Africans superiority in distance running is to a large exent due to a unique combination of these factors. East African runners appear to have a very high level of RE most likely associated, at least partly, with anthropometric characteristics rather than with any specific metabolic property of the working muscle...
September 15, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27617625/different-running-patterns-along-the-aerial-terrestrial-continuum-can-result-in-similar-running-economy
#19
Thibault Lussiana, Cyrille Gindre, Kim Hébert-Losier, Yoshimasa Sagawa, Philippe Gimenez, Laurent Mourot
PURPOSE: There is no unique or 'ideal' running pattern that is the most economical for all runners. Classifying the global running patterns of individuals into two categories (aerial and terrestrial) using the Volodalen® method could permit a better understanding of the relationship between running economy (RE) and biomechanics. The main purpose was to compare RE between aerial and terrestrial runners. METHODS: Two coaches classified 58 runners into aerial (n=29) or terrestrial (n=29) running patterns on the basis of visual observations...
September 6, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27584338/plyometric-and-resistance-training-do-not-inhibit-running-economy-for-up-to-24-hours-1299-board-2-june-2-8-00-am-10-00-am
#20
Richard T Marcello, Beau K Greer, Anna E Greer
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
keyword
keyword
7563
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"