keyword
MENU ▼
Read by QxMD icon Read
search

Sprint ability

keyword
https://www.readbyqxmd.com/read/28930875/the-kinetic-determinants-of-reactive-strength-in-highly-trained-sprint-athletes
#1
Jamie Douglas, Simon Pearson, Angus Ross, Mike McGuigan
The purpose of this study was to determine the braking and propulsive phase kinetic variables underpinning reactive strength in highly trained sprint athletes in comparison to a non-sprint trained control group. Twelve highly trained sprint athletes and twelve non-sprint trained participants performed drop jumps (DJs) from 0.25m, 0.50m and 0.75m onto a force plate. One familiarization session was followed by an experimental testing session within the same week. Reactive strength index (RSI), contact time, flight time, and leg stiffness were determined...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28916706/the-expression-of-ldh-c-in-the-skeletal-muscle-of-plateau-pika-ochotona-curzoniae-enhances-adaptation-to-a-hypoxic-environment
#2
Zhi F An, Deng B Wei, Lian Wei, Yang Wang, Lin N Wei
The plateau pika (Ochotona curzoniae) is a species of sprint-running alpine animals in the Qinghai-Tibet Plateau, which is a harsh highland hypoxic environment. Ldh-c is expressed in the testis, sperm and somatic tissues of plateau pika. To reveal the role and physiological mechanisms of sperm-specific lactate dehydrogenase (LDH-C4), in plateau pika to adapt to hypoxic environment, an adenoviral line of pMultiRNAi-Ldhc was constructed and injected into the bilateral biceps femoris of the hind legs. The swimming times of the pikas, and the Ldh-c expression levels, total LDH activities and ATP levels in skeletal muscle, were measured after the pikas were raised in the trapped site for 5 days...
September 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28902114/effects-of-repeated-sprints-with-changes-of-direction-on-youth-soccer-player-s-performance-impact-of-initial-fitness-level
#3
Fábio Y Nakamura, Javier Sanchez-Sanchez, Rodrigo Ramirez-Campillo, Cristina Petisco, Oliver Gonzalo-Skok, Alejandro Rodriguez-Fernandez, Javier Miñano
The aim of this study was to assess the effect of an 8-week repeated sprint with change of direction training program on repeated sprint, intermittent endurance and change of direction performance in youth soccer players with different aerobic fitness levels. Athletes were randomly assigned into a soccer-only (n=9; age, 14.9±0.4 yr) and soccer plus repeated sprint with change of direction (RS-COD) training programs for players with high (n=10; age, 14.4±0.5 yr) and low (n=10; age, 14.4±0.5 yr) aerobic fitness...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28902113/comparative-effects-of-two-interval-shuttle-run-training-modes-on-physiological-and-performance-adaptations-in-female-professional-futsal-players
#4
Anderson S Teixeira, Francimara B Arins, Ricardo D De Lucas, Lorival J Carminatti, Naiandra Dittrich, Fábio Yuzo Nakamura, Luiz Guilherme A Guglielmo
The purpose of the present study was to analyze the effects of two shuttle-run interval training (SRIT) models with one and three directional changes per running bout on the aerobic and anaerobic performances of elite female futsal players. Sixteen players competing in the Brazilian National Division League took part in the study. The training protocols consisted of shuttle-run intervals organized in four sets of 4-min bouts with 3- min of rest intervals between the sets. The SRIT models were composed of one (7...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28859419/complex-reproductive-traits-and-whole-organism-performance
#5
T J Orr, Theodore Garland
Arnold's 1983 path-analytic paradigm, considering "morphology, performance, and fitness," has been elaborated in several ways. For example, current versions recognize the level of "behavior" (including aspects of motivation) as a filter between performance abilities (only measurable if motivation is maximal) and fitness components. Performance abilities constrain behavior, but behavioral choices may shield performance from selection. Conceptual and empirical issues remain, such as the extent to which individual variation in lower-level subordinate traits (e...
August 1, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28859414/physiological-and-biomechanical-mechanisms-of-distance-specific-human-running-performance
#6
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
https://www.readbyqxmd.com/read/28859413/locomotion-energetics-performance-and-behavior-a-mammalian-perspective-on-lizards-and-vice-versa
#7
Theodore Garland, Ralph L Albuquerque
Animals are constrained by their abilities and by interactions with environmental factors, such as low ambient temperatures. These constraints range from physical impossibilities to energetic inefficiencies, and may entail trade-offs. Some of the constraints related to locomotion and activity metabolism can be illustrated through allometric comparisons of mammals and lizards, as representative terrestrial vertebrate endotherms and ectotherms, respectively, because these lineages differ greatly in aerobic metabolic capacities, resting energetic costs, and thermoregulatory patterns...
August 1, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28846611/high-intensity-exercise-can-it-protect-you-from-a-fast-food-diet
#8
Christian Duval, Marc-Antoine Rouillier, Rémi Rabasa-Lhoret, Antony D Karelis
The purpose of this study was to assess the ability of high intensity exercise to counteract the deleterious effects of a fast food diet on the cardiometabolic profile of young healthy men. Fifteen men were subjected to an exclusive fast food diet from a popular fast food restaurant chain (three extra value meals/day + optional snack) for 14 consecutive days. Simultaneously, participants were asked to perform each day high intensity interval training (HIIT) (15 × 60 sec sprint intervals (~90% of maximal heart rate)) on a treadmill...
August 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28828094/variability-of-metabolic-power-data-in-elite-soccer-players-during-pre-season-matches
#9
Matthias Wilhelm Hoppe, Christian Baumgart, Mirko Slomka, Ted Polglaze, Jürgen Freiwald
This study aimed to determine the within-subject variability of GPS-derived metabolic power data in elite soccer players across several pre-season matches and compare the variability of high metabolic power, velocity, acceleration and deceleration running. Additionally, differences in metabolic power data among playing positions and relationships with various physical abilities were also investigated. Metabolic power data from 12 outfield starting players competing in the German Bundesliga were collected during five pre-season matches using GPS-technology (10 Hz)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828089/relationships-between-sprint-jumping-and-strength-abilities-and-800-m-performance-in-male-athletes-of-national-and-international-levels
#10
Beatriz Bachero-Mena, Fernando Pareja-Blanco, David Rodríguez-Rosell, Juan Manuel Yáñez-García, Ricardo Mora-Custodio, Juan José González-Badillo
This study analysed the relationships between sprinting, jumping and strength abilities, with regard to 800 m running performance. Fourteen athletes of national and international levels in 800 m (personal best: 1:43-1:58 min:ss) completed sprint tests (20 m and 200 m), a countermovement jump, jump squat and full squat test as well as an 800 m race. Significant relationships (p < 0.01) were observed between 800 m performance and sprint tests: 20 m (r = 0.72) and 200 m (r = 0.84). Analysing the 200 m run, the magnitude of the relationship between the first to the last 50 m interval times and the 800 m time tended to increase (1st 50 m: r = 0...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828081/effects-of-plyometric-training-and-beta-alanine-supplementation-on-maximal-intensity-exercise-and-endurance-in-female-soccer-players
#11
Fabián Rosas, Rodrigo Ramírez-Campillo, Cristian Martínez, Alexis Caniuqueo, Rodrigo Cañas-Jamet, Emma McCrudden, Cesar Meylan, Jason Moran, Fábio Y Nakamura, Lucas A Pereira, Irineu Loturco, Daniela Diaz, Mikel Izquierdo
Plyometric training and beta-alanine supplementation are common among soccer players, although its combined use had never been tested. Therefore, a randomized, double-blind, placebo-controlled trial was conducted to compare the effects of a plyometric training program, with or without beta-alanine supplementation, on maximal-intensity and endurance performance in female soccer players during an in-season training period. Athletes (23.7 ± 2.4 years) were assigned to either a plyometric training group receiving a placebo (PLACEBO, n = 8), a plyometric training group receiving beta-alanine supplementation (BA, n = 8), or a control group receiving placebo without following a plyometric training program (CONTROL, n = 9)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28820858/technical-and-tactical-aspects-in-italian-youth-rugby-union-in-relation-to-different-academies-regional-tournaments-and-outcomes
#12
Alexandru Nicolae Ungureanu, Giancarlo Condello, Simonluca Pistore, Daniele Conte, Corrado Lupo
This study aimed to analyze the technical and tactical aspects of the Italian under-18 Academy Rugby Union in relation to different academies, regional tournaments, and game outcomes. A notational analysis (forty-four indicators) was performed on 16 games (2014-15 season) to evaluate strong differences (P ≤ 0.05; moderate-large effect sizes) according to variables. Among academies, strong differences were showed for defensive breakdown where the defending support is much (range=77-87%), equal (range=11-32%), and less (range=2-12%) numerous than the attacking support, total tackles (range=64-122) and passes (range=72-151), pass to possession ratio (range=6-10), possession lost due to an error (range=28-59%), and ball in play in own (range=8-25%) and opponent (range=7-31%) 22m area indicators...
August 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28806410/the-influence-of-speed-abilities-and-technical-skills-in-early-adolescence-on-adult-success-in-soccer-a-long-term-prospective-analysis-using-anova-and-sem-approaches
#13
Oliver Höner, Daniel Leyhr, Augustin Kelava
Several talent development programs in youth soccer have implemented motor diagnostics measuring performance factors. However, the predictive value of such tests for adult success is a controversial topic in talent research. This prospective cohort study evaluated the long-term predictive value of 1) motor tests and 2) players' speed abilities (SA) and technical skills (TS) in early adolescence. The sample consisted of 14,178 U12 players from the German talent development program. Five tests (sprint, agility, dribbling, ball control, shooting) were conducted and players' height, weight as well as relative age were assessed at nationwide diagnostics between 2004 and 2006...
2017: PloS One
https://www.readbyqxmd.com/read/28800004/sport-specific-repeated-sprint-training-improves-punching-ability-and-upper-body-aerobic-power-in-experienced-amateur-boxers
#14
Sigitas Kamandulis, Vidas Bruzas, Pranas Mockus, Alvydas Stasiulis, Audrius Snieckus, Tomas Venckunas
High-intensity interval training improves endurance and performance, but it is unclear whether sprint-type upper-body interval training is similarly effective. This study explored the effects of 4-week sport-specific sprint interval training on punch characteristics and endurance capacity in boxers. Experienced male amateur boxers (n = 18) participated in this 4-week training study, and were divided into an experimental group (EG) and a control group (CG) (n = 9 per group). Both groups completed standard low-intensity training...
August 9, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28796124/evaluation-of-strength-and-conditioning-measures-with-game-success-in-division-i-collegiate-volleyball-a-retrospective-study
#15
Jennifer A Bunn, Greg A Ryan, Gabriel R Button, S Zhang
The purpose of this study was to retrospectively assess relationships between strength and conditioning (SC) measures and game performance in Division I volleyball. Five years of SC and game data were collected from one women's Division I collegiate team, n = 76. SC measures included: T-drill, 18.3 m sprint, back squat, hang clean, vertical jump, and broad jump. All game and SC stats were normalized to Z-scores. Analyses included assessing SC differences by position, and multiple stepwise regression to assess relationships between game and SC stats...
August 4, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28759539/reliability-characteristics-and-applicability-of-a-repeated-sprint-ability-test-in-male-young-soccer-players
#16
Carlo Castagna, Lorenzo Francini, Peter Krustrup, Juliano Fenarnandes-da-Silva, Susana C A Póvoas, Andrea Bernardini, Stefano D'Ottavio
The aim of this study was to examine the usefulness and reliability characteristics of a repeated sprint ability test considering 5 line sprints of 30-m interspersed with 30-s of active recovery in non-elite outfield young male soccer players. Twenty-six (age 14.9±1.2 years, height 1.72±0.12 cm, body mass 62.2±5.1 kg) players were tested 48 hours and 7 days apart for 5x30-m performance over 5 trials (T1-T5). Short- (T1-T2) and long-term reliability (T1-T3-T4-T5) were assessed with Intraclass Correlation Coefficient (ICC) and with typical error for measurement (TEM)...
July 28, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28723816/importance-of-physical-qualities-for-speed-and-change-of-direction-ability-in-elite-female-soccer-players
#17
Stacey Emmonds, G Nicholson, C Beggs, B Jones, A Bissas
The purpose of this study was to determine the importance of physical qualities for speed and change of direction (CoD) ability in female soccer players. Data were collected on 10 female soccer players who were part of a professional English Women's Super League team. Player assessments included anthropometric (stature and body mass), body composition (dual-energy X-ray absorptiometry), speed (10m, 30m sprint), CoD ability (505 agility), aerobic (Yo-Yo Intermittent Recovery Test), lower-body strength (bilateral knee extensions) and power (countermovement jump [CMJ], squat jump [SJ], 30cm drop jump [DJ]) measures...
July 17, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28708946/sports-participation-functional-outcome-and-complications-after-ankle-arthrodesis-midterm-follow-up
#18
Yvonne R A Kerkhoff, Noël L W Keijsers, Jan Willem K Louwerens
BACKGROUND: Ankle arthrodesis provides satisfactory functional outcome based on basic daily activities, but information regarding more demanding tasks is limited. Also, studies reporting longer term survival and complication rates are sparse and concern small study populations. This study reports functional outcome with more focus on demanding tasks and sports and reports the mid- to long-term union and complication rates in a large study population. METHODS: Between 2005 and 2010, an ankle arthrodesis was performed on 185 ankles...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28691124/measuring-changes-in-gait-and-vehicle-transfer-ability-during-inpatient-rehabilitation-with-wearable-inertial-sensors
#19
Vladimir Borisov, Gina Sprint, Diane J Cook, Douglas L Weeks
Restoration of functional independence in gait and vehicle transfer ability is a common goal of inpatient rehabilitation. Currently, ambulation changes tend to be subjectively assessed. To investigate more precise objective assessment of progress in inpatient rehabilitation, we quantitatively assessed gait and transfer performances over the course of rehabilitation with wearable inertial sensors for 20 patients receiving inpatient rehabilitation services. Secondarily, we asked physical therapists to provide feedback about the clinical utility of metrics derived from the sensors...
March 2017: Proc IEEE Int Conf Pervasive Comput Commun Workshops
https://www.readbyqxmd.com/read/28674872/efficacy-of-wearing-compression-garments-during-post-exercise-period-after-two-repeated-bouts-of-strenuous-exercise-a-randomized-crossover-design-in-healthy-active-males
#20
Kazushige Goto, Sahiro Mizuno, Ayaka Mori
BACKGROUND: The efficacy of wearing [a] compression garment (CG) between repeated bouts of exercise within a same day has not been fully understood. The present study determined the effect of wearing a CG after strenuous exercise sessions (consisting of sprint exercise, resistance exercise, drop jump) twice a day on exercise performance, muscle damage, and inflammatory responses. METHODS: Eleven physically active males (age, 22.7 ± 0.9 years; height, 175...
December 2017: Sports Medicine—Open
keyword
keyword
14937
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"