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https://www.readbyqxmd.com/read/28697691/the-relationship-between-mechanical-stiffness-and-athletic-performance-markers-in-sub-elite-footballers
#1
Judd T Kalkhoven, Mark L Watsford
This study investigated the relationship between several measures of lower-body stiffness and physical performance variables in 22 sub-elite male football players (mean ± SD; 21.9 ± 1.5 yr; 1.79 ± 0.06 m; 72.2 ± 7.2 kg). The participants were assessed for individual muscle stiffness of the Rectus Femoris (RF), Biceps Femoris (BF) and Medial Gastrocnemius (MG) muscles and vertical stiffness (Kvert) was also assessed assessed running acceleration, maximal sprint speed, agility, vertical jumping and muscular strength...
July 12, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28684703/western-and-mediterranean-dietary-patterns-and-physical-activity-and-fitness-among-spanish-older-adults
#2
Maria Del Mar Bibiloni, Alicia Julibert, Emma Argelich, Raquel Aparicio-Ugarriza, Gonzalo Palacios, Antoni Pons, Marcela Gonzalez-Gross, Josep A Tur
Objectives: To assess prevailing food patterns, and its association with physical activity and fitness among Spanish older adults. Methods: Cross-sectional study in Spain, collecting data from a sample (n = 380; 54% female) aged 55-80 years (men) and 60-80 years (women) with no previously documented cardiovascular disease. Body weight, body fat and waist circumference were assessed. Physical activity performed was measured using the Minnesota Leisure-time Physical Activity Questionnaire (LTPA). Physical fitness was assessed using a validated physical fitness test battery...
July 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28658073/monitoring-changes-in-power-speed-agility-and-endurance-in-elite-cricketers-during-the-off-season
#3
Chris Bishop, Ross Herridge, Anthony Turner
The purpose of this study was to monitor changes in power, speed, agility and endurance in elite cricketers during the 20-week off-season period. Fourteen elite male cricketers (age 26.2 ± 5.3years; height 180.8 ± 8.5cm; mass 83.5 ± 6.7kg) conducted a physical testing battery in week 1 and week 18 of the off-season period. The testing included a yoyo intermittent recovery test (yoyo IRT), bilateral and unilateral countermovement jumps (CMJ), squat jump (SJ), broad jump (BJ), drop jump (to calculate reactive strength index - [RSI]), pro agility and 5, 10, 20m sprint tests...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28654438/differences-in-athletic-performance-between-sportsmen-with-symptomatic-femoroacetabular-impingement-and-healthy-controls
#4
Karen Mullins, Michael Hanlon, Patrick Carton
OBJECTIVE: Femoroacetabular impingement (FAI) is a commonly recognized condition in athletes characterized by activity-related hip pain and stiffness, which if left untreated can progress to hip osteoarthritis. The aim of the study was to determine the effect of symptomatic FAI on performance in young athletes based on the hypothesis that athletes with FAI would show deficits in performance compared with healthy controls. DESIGN: The functional performance of a cohort of preoperative, competitive sportsmen with symptomatic FAI (FAI group, n = 54), was compared with that of a group of age, sex and activity-level matched controls (n = 66)...
June 22, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28651798/cycling-to-school-and-body-composition-physical-fitness-and-metabolic-syndrome-in-children-and-adolescents
#5
Robinson Ramírez-Vélez, Antonio García-Hermoso, Cesar Agostinis-Sobrinho, Jorge Mota, Rute Santos, Jorge Enrique Correa-Bautista, Deisy Constanza Amaya-Tambo, Emilio Villa-González
OBJECTIVE: To evaluate the association between cycling to/from school and body composition, physical fitness, and metabolic syndrome among a sample of Colombian children and adolescents. STUDY DESIGN: During the 2014-2015 school year, we examined a cross-sectional component of the Association for muscular strength with early manifestation of cardiovascular disease risk factors among Colombian children and adolescents (FUPRECOL) study. Participants included 2877 youths (54...
June 23, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28637919/the-morphological-heterogeneity-of-cricket-flow-sensing-hairs-conveys-the-complex-flow-signature-of-predator-attacks
#6
Thomas Steinmann, Jérôme Casas
Arthropod flow-sensing hair length ranges over more than an order of magnitude, from 0.1 to 5 mm. Previous studies repeatedly identified the longest hairs as the most sensitive, but recent studies identified the shortest hairs as the most responsive. We resolved this apparent conflict by proposing a new model, taking into account both the initial and long-term aspects of the flow pattern produced by a lunging predator. After the estimation of the mechanical parameters of hairs, we measured the flow produced by predator mimics and compared the predicted and observed values of hair displacements in this flow...
June 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28630578/are-change-of-direction-speed-and-reactive-agility-useful-for-determining-the-optimal-field-position-for-young-soccer-players
#7
Giovanni Fiorilli, Enzo Iuliano, Michalis Mitrotasios, Eugenio M Pistone, Giovanna Aquino, Giuseppe Calcagno, Alessandra di Cagno
Change Of Direction Speed (CODS) and Reactive Agility (RA) are two determining factors in the ability of young soccer players. We aimed to verify if CODS and RA could be useful in order to establish the best young soccer player field position. Ninety-two elite soccer players (15.18 ± 1.21 years, weight 59.18 ± 9.93, height 1.72 ± 0.08, BMI 19.76 ± 2.22), belonging to two youth categories from the Italian First and Second Divisions, volunteered in this study. The participants included 32 defenders (15.06 ± 0...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28594829/mendel-md-a-user-friendly-open-source-web-tool-for-analyzing-wes-and-wgs-in-the-diagnosis-of-patients-with-mendelian-disorders
#8
Raony G C C L Cardenas, Natália D Linhares, Raquel L Ferreira, Sérgio D J Pena
Whole exome and whole genome sequencing have both become widely adopted methods for investigating and diagnosing human Mendelian disorders. As pangenomic agnostic tests, they are capable of more accurate and agile diagnosis compared to traditional sequencing methods. This article describes new software called Mendel,MD, which combines multiple types of filter options and makes use of regularly updated databases to facilitate exome and genome annotation, the filtering process and the selection of candidate genes and variants for experimental validation and possible diagnosis...
June 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28585394/wii-based-exercise-program-to-improve-physical-fitness-motor-proficiency-and-functional-mobility-in-adults-with-down-syndrome
#9
V Silva, C Campos, A Sá, M Cavadas, J Pinto, P Simões, S Machado, E Murillo-Rodríguez, N Barbosa-Rocha
BACKGROUND: People with Down syndrome (DS) usually display reduced physical fitness (aerobic capacity, muscle strength and abnormal body composition), motor proficiency impairments (balance and postural control) and physical functional limitations. Exergames can be an appealing alternative to enhance exercise engagement and compliance, whilst improving physical fitness and motor function. This study aims to analyse the effects of a Wii-based exercise program on physical fitness, functional mobility and motor proficiency of adults with DS...
August 2017: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/28570489/possible-hormone-predictors-of-physical-performance-in-adolescent-team-sport-athletes
#10
Alanna C Martin, Ian T Heazlewood, Cecilia M Kitic, Isabelle Lys, Liam Johnson
The research aim of this study was to determine possible hormone predictors of physical performance in adolescent team sport athletes. Saliva samples were collected immediately prior to performance testing sessions from 114 state squad athletes (77 male, 37 female) participating in either Australian football, basketball, hockey, or netball. Participants completed tests of aerobic and anaerobic capacity, agility, power and speed. Samples were collected over 22 months at quarterly, six-monthly and/or yearly intervals depending on the testing schedule of the athlete...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28539149/mobility-and-agility-during-locomotion-in-the-mark-iii-space-suit
#11
Conor R Cullinane, Richard A Rhodes, Leia A Stirling
INTRODUCTION: The Mark III (MIII) space suit assembly (SSAs) implements a multibearing, hard-material hip brief assembly (HBA). We hypothesize that: 1) the MIII HBA restricts operator mobility and agility which manifests in effects to gait parameters; 2) the waist bearing provides rotational motion, partially alleviating the restrictions; and 3) there are resistive, speed-dependent torques associated with the spinning bearings which further diminish mobility and agility. METHODS: A subject (Suited and Unsuited) performed two planetary tasks-walking forward (WF) and backward (WB)...
June 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28538324/physical-fitness-reference-standards-in-french-youth-the-bouge-program
#12
Jérémy Vanhelst, Julien Labreuche, Laurent Béghin, Elodie Drumez, Paul S Fardy, Didier Chapelot, Jacques Mikulovic, Zékya Ulmer
Vanhelst, J, Julien, JL, Beghin, L, Drumez, E, Fardy, PS, Chapelot, D, Mikulovic, J, and Ulmer, Z. Physical fitness reference standards in French youth: The BOUGE program. J Strength Cond Res 31(6): 1709-1718, 2017-The aim of this study was to establish sex- and age-specific physical fitness percentiles in French youth. A sample of 11,186 children and adolescents (5,546 boys and 5,640 girls), aged between 10 and 15 years, was assessed in the French national BOUGE study. Participants were tested for their cardiorespiratory fitness, muscular endurance, speed, flexibility, and agility using the following tests: 20-m shuttle run tests, curl-ups test, 50-m sprint test, back-saver sit and reach test, and 10 × 5-m shuttle run test...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538294/effects-of-different-combinations-of-strength-power-and-plyometric-training-on-the-physical-performance-of-elite-young-soccer-players
#13
Ronaldo Kobal, Irineu Loturco, Renato Barroso, Saulo Gil, Rogério Cuniyochi, Carlos Ugrinowitsch, Hamilton Roschel, Valmor Tricoli
The combination of strength (ST) and plyometric training (PT) has been shown to be effective for improving sport-specific performance. However, there is no consensus about the most effective way to combine these methods in the same training session to produce greater improvements in neuromuscular performance of soccer players. Thus, the purpose of this study was to compare the effects of different combinations of ST and PT sequences on strength, jump, speed, and agility capacities of elite young soccer players...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28517613/a-quantitative-method-to-the-analysis-of-mlc-leaf-position-and-speed-based-on-epid-and-ebt3-film-for-dynamic-imrt-treatment-with-different-types-of-mlc
#14
Yinghui Li, Lixin Chen, Jinhan Zhu, Bin Wang, Xiaowei Liu
A quantitative method based on the electronic portal imaging system (EPID) and film was developed for MLC position and speed testing; this method was used for three MLC types (Millennium, MLCi, and Agility MLC). To determine the leaf position, a picket fence designed by the dynamic (DMLC) model was used. The full-width half-maximum (FWHM) values of each gap measured by EPID and EBT3 were converted to the gap width using the FWHM versus nominal gap width relationship. The algorithm developed for the picket fence analysis was able to quantify the gap width, the distance between gaps, and each individual leaf position...
May 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28509631/improving-balance-mobility-and-dual-task-performance-in-an-adolescent-with-cerebral-palsy-a-case-report
#15
Sarah Fisher-Pipher, Lisa K Kenyon, Marci Westman
BACKGROUND AND PURPOSE: Improving functional mobility is often a desired outcome for adolescents with cerebral palsy (CP). Traditional neurorehabilitation approaches are frequently directed at impairments; however, improvements may not be carried over into functional mobility. The purpose of this case report was to describe the examination, intervention, and outcomes of a task-oriented physical therapy intervention program to improve dynamic balance, functional mobility, and dual-task performance in an adolescent with CP...
July 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28506451/motor-skill-development-in-low-income-at-risk-preschoolers-a-community-based-longitudinal-intervention-study
#16
Laura L Bellows, Patricia L Davies, Jimikaye B Courtney, William J Gavin, Susan L Johnson, Richard E Boles
OBJECTIVES: This study aimed to: (1) determine the status of fundamental movement skill (FMS) performance in low-income, at-risk preschoolers; and (2) evaluate the impact of the Food Friends Get Movin' with Mighty Moves (MM) program on improving children's FMS at two-year follow-up. DESIGN: Longitudinal, quasi-experimental study with matched controls. METHODS: The Colorado LEAP study was conducted in four Head Start/preschools (two intervention, two control) serving children aged 3-5 years...
April 26, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28488829/analyzing-the-relationship-between-anthropometric-and-motor-indices-with-basketball-specific-pre-planned-and-non-planned-agility-performances
#17
Miran Pehar, Nedim Sisic, Damir Sekulic, Milan Coh, Ognjen Uljevic, Miodrag Spasic, Ante Krolo, Kemal Idrizovic
BACKGROUND: Although agility is an important quality in basketball, factors associated with basketball specific pre-planned-agility (change-of-direction-speed - CODS) and non- planned-agility (reactive agility - RA) are rarely investigated. The aim of this study was to evaluate relationship between anthropometric and motor indices with basketball-specific CODS and RA in male basketball players of high performance level. METHODS: We tested 88 high-level male basketball players (height: 194...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28452186/eocene-paleoecology-of-adapis-parisiensis-primate-adapidae-from-inner-ear-to-lifestyle
#18
Margot Bernardi, Sébastien Couette
European adapids, especially Adapis parisiensis, have been extensively studied over the past two centuries, essentially for taxonomic and phylogenetic purposes. Analyses of dental, cranial, and postcranial morphology have led to various hypotheses about the diet, locomotion, and lifestyle of this fossil primate species. As the morphology of Adapis parisiensis is not directly comparable to any extant species, some interpretations are still debated. The inner ear is crucial to several functional parameters, such as auditory acuity, balance, agility, orientation, and head motion speed during locomotion...
April 27, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28422524/straight-line-and-change-of-direction-intermittent-running-in-professional-soccer-players
#19
Mohamed S Fessi, Fayçal Farhat, Alexandre Dellal, James J Malone, Wassim Moalla
PURPOSE: The present study aimed to investigate the difference between straight-line (STL) and change of direction (COD) intermittent running exercises in soccer players. METHODS: Seventeen male professional soccer players performed the agility T-test and 6 intermittent running exercises: 10s at 130% of maximal aerobic speed (MAS) alternated with 10s of rest (10-10), 15s at 120% of MAS alternated with 15s of rest (15-15) and 30s at 110% of MAS alternated with 30s of rest (30-30) both in STL and with COD...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28416892/anthropometric-and-physical-characteristics-allow-differentiation-of-young-female-volleyball-players-according-to-playing-position-and-level-of-expertise
#20
M Milić, Z Grgantov, K Chamari, L P Ardigò, A Bianco, J Padulo
The aim of our study was to determine the differences in some anthropometric and physical performance variables of young Croatian female volleyball players (aged 13 to 15) in relation to playing position (i.e., independent variable) and performance level within each position (i.e., independent variable). Players were categorized according to playing position (i.e., role) as middle blockers (n=28), opposite hitters (n=41), passer-hitters (n=54), setters (n=30), and liberos (n=28). Within each position, players were divided into a more successful group and a less successful group according to team ranking in the latest regional championship and player quality within the team...
March 2017: Biology of Sport
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