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https://www.readbyqxmd.com/read/27918240/circadian-rhythm-effect-on-physical-tennis-performance-in-trained-male-players
#1
Álvaro López-Samanes, Diego Moreno-Pérez, José L Maté-Muñoz, Raúl Domínguez, Jesús G Pallarés, Ricardo Mora-Rodriguez, Juan F Ortega
To determine the effect of circadian rhythm on neuromuscular responses and kinematics related to physical tennis performance, after a standardised warm-up, 13 highly competitive male tennis players were tested twice for serve velocity/accuracy (SVA), countermovement vertical jump (CMJ), isometric handgrip strength (IS), agility T-test (AGIL) and a 10-m sprint (10-m RUN). In a randomised, counter-balance order, tennis players underwent the test battery twice, either in the morning (i.e., AM; 9:00 h) and in the afternoon (i...
December 5, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27849465/outcomes-associated-with-the-intrepid-dynamic-exoskeletal-orthosis-ideo-a-systematic-review-of-the-literature
#2
M Jason Highsmith, Leif M Nelson, Neil T Carbone, Tyler D Klenow, Jason T Kahle, Owen T Hill, Jason T Maikos, Mike S Kartel, Billie J Randolph
High-energy lower extremity trauma is a consequence of modern war and it is unclear if limb amputation or limb salvage enables greater recovery. To improve function in the injured extremity, a passive dynamic ankle-foot orthosis, the Intrepid Dynamic Exoskeletal Orthosis (IDEO), was introduced with specialized return to run (RTR) therapy program. Recent research suggests, these interventions may improve function and return to duty rates. This systematic literature review sought to rate available evidence and formulate empirical evidence statements (EESs), regarding outcomes associated with IDEO utilization...
November 2016: Military Medicine
https://www.readbyqxmd.com/read/27834500/positional-differences-in-external-on-field-load-during-specific-drill-classifications-across-a-professional-rugby-league-pre-season
#3
Cloe Cummins, Blake McLean, Mark Halaki, Rhonda Orr
PURPOSE: To quantify the external training loads of positional groups within pre-season training drills. METHODS: Thirty-three elite rugby league players were categorized into one of four positional groups: outside backs (n=9), adjustables (n=9), wide-running forwards (n=9) and hit-up forwards (n=6). Data for eight pre-season weeks were collected using microtechnology devices. Training drills were classified based on drill focus; speed and agility, conditioning, generic and positional skills...
November 11, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27832925/ecological-validity-of-the-german-bruininks-oseretsky-test-of-motor-proficiency-2nd-edition
#4
Sabine Vinçon, Dido Green, Rainer Blank, Ekkehart Jenetzky
The diagnosis of Developmental Coordination Disorder (DCD) is based on poor motor coordination in the absence of other neurological disorders. In order to identify the presence of movement difficulties, a standardised motor assessment is recommended to determine the extent of movement problems which may contribute to deficits in daily task performance. A German version of the Bruininks-Oseretsky Test of Motor Proficiency, Second Edition (German BOT-2) was recently published. This study aimed to determine the ecological validity of the German BOT-2 by considering the relationship between assessment of fundamental motor skills with the BOT-2 and performance of everyday motor activities as evaluated by parents...
November 7, 2016: Human Movement Science
https://www.readbyqxmd.com/read/27826572/capsule-endoscopy-of-the-small-bowel
#5
REVIEW
Mark E McAlindon, Hey-Long Ching, Diana Yung, Reena Sidhu, Anastasios Koulaouzidis
Capsule endoscopy (CE) is a first line small bowel investigative modality which provides more sensitive mucosal imaging than comparators. It is a non-invasive, non-irradiating tool well tolerated by patients. The risk of retention of the capsule can be minimised by ensuring luminal patency using the Agile patency device. Research continues into how to minimise missed pathology and variability in the identification of pathology or interpretation of images. The consensus is that bowel preparation using laxatives improves visibility and diagnostic yield...
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27821967/physical-and-balance-performance-following-exercise-induced-muscle-damage-in-male-soccer-players
#6
Muzaffar Ahmad Khan, Jamal Ali Moiz, Shahid Raza, Shalini Verma, M Y Shareef, Shahnawaz Anwer, Ahmad Alghadir
[Purpose] The present study aimed to determine the changes in physical and balance performance following exercise-induced muscle damage using a sport-specific protocol. [Subjects and Methods] Fifteen collegiate soccer players were asked to perform a sport-specific sprint protocol to induce muscle damage. The markers of muscle damage (soreness, range of motion, limb girth, muscle strength, creatine kinase and lactate dehydrogenase), physical performance (speed, agility and power) and balance (static and dynamic balance) were assessed at baseline and 24, 48 and 72 hours following the sprint protocol...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27806004/the-validity-and-contributing-physiological-factors-to-30-15-intermittent-fitness-test-performance-in-rugby-league
#7
Tannath J Scott, Grant M Duthie, Jace A Delaney, Colin E Sanctuary, David A Ballard, Jeremy A Hickmans, Ben J Dascombe
This study examined the validity of the 30-15 Intermittent Fitness Test (30-15IFT) within rugby league. Sixty-three Australian elite and junior-elite rugby league players (22.5 ± 4.5 yr, 96.1. kg ± 9.5 kg, Σ7 skinfolds: 71.0 ± 18.7 mm) from a professional club participated in this study. Players were assessed for anthropometry (body mass, Σ7 skinfolds, lean mass index), prolonged high-intensity intermittent running (PHIR; measured by 30-15IFT), predicted aerobic capacity (MSFT) and power (AAS), speed (40 m sprint), repeated sprint and change of direction (COD - 505 agility test) ability prior to and following an 11 week pre-season training period...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27802152/preferred-gait-and-walk-run-transition-speeds-in-ostriches-measured-using-gps-imu-sensors
#8
Monica A Daley, Anthony J Channon, Grant S Nolan, Jade Hall
The ostrich (Struthio camelus) is widely appreciated as a fast and agile bipedal athlete, and is a useful comparative bipedal model for human locomotion. Here, we used GPS-IMU sensors to measure naturally selected gait dynamics of ostriches roaming freely over a wide range of speeds in an open field and developed a quantitative method for distinguishing walking and running using accelerometry. We compared freely selected gait-speed distributions with previous laboratory measures of gait dynamics and energetics...
October 15, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27788679/visually-guided-gait-training-in-paretic-patients-during-the-first-rehabilitation-phase-study-protocol-for-a-randomized-controlled-trial
#9
Cathia Rossano, Philippe Terrier
BACKGROUND: After a lesion to the central nervous system, many patients suffer from reduced walking capability. In the first rehabilitation phase, repeated walking exercises facilitate muscular strength and stimulate brain plasticity and motor relearning. However, marked limping, an unsteady gait, and poor management of obstacle clearance may persist, which increases a patient's risk of falling. Gait training with augmented reality has been recommended to improve gait coordination. The objective of this study is to test whether a gait rehabilitation program using augmented reality is superior to a conventional treadmill training program of equivalent intensity...
October 27, 2016: Trials
https://www.readbyqxmd.com/read/27787471/twelve-weeks-of-plyometric-training-improves-motor-performance-of-7-10-year-old-overweight-obese-boys-a-randomized-controlled-intervention
#10
Gabriela Góes Nobre, Marcelus Brito de Almeida, Isabele Góes Nobre, Fernanda Karina Dos Santos, Raphael Arnaut Brinco, Thalison Ricardo Arruda-Lima, Kenya Larissa de-Vasconcelos, Jociellen Gomes de-Lima, Manoel Etelberto Borba-Neto, Emmanuel Martins Damasceno-Rodrigues, Steve Martin Santos-Silva, Carol Góis Leandro, Marcos André Moura-Dos-Santos
The prevalence of childhood overweight/obesity has increased, and physical training at school may to be effective to combat this scenario. We analyzed the effects of a protocol of plyometric training on body composition and motor performance of overweight/obese boys aged 7 to 9 years. The sample was randomly assigned into 2 groups: plyometric training group (T, n = 40) and control group (C, n = 19). Training consisted of 20 minutes/day (twice a week, during twelve weeks) of lower extremity plyometric exercise...
October 13, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27740896/association-between-body-mass-index-and-motor-competence-in-santal-children-of-purulia-district-india
#11
Sutanu Dutta Chowdhury, Brian H Wrotniak, Tusharkanti Ghosh
The purpose of this study was to evaluate the relationship between body mass index and motor competence in Santal children 5-12 years old. A total of 816 Santal children were studied. Children's adiposity status was assessed by body mass index (BMI) for age z-score based on World Health Organization reference data. Motor competence was measured using the Bruininks-Oseretsky Test of Motor Competence (BOT-2). There was no significant difference in mean BMI z-score between Santal boys (0.13 ± 0.07) and girls (-0...
October 14, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27705537/a-longitudinal-study-of-physical-fitness-in-elite-junior-tennis-players
#12
Tamara Kramer, Barbara C H Huijgen, Marije T Elferink-Gemser, Chris Visscher
PURPOSE: To analyze how physical fitness (PF) improves in elite junior tennis players related to age, maturity, and performance level. METHODS: Elite junior tennis players (n = 113 boys, n = 83 girls) divided by performance level were monitored longitudinally from U14 to U16. Maturity, upper and lower-body power, speed, and agility were measured during subsequent competitive seasons. Improvement was analyzed per sex using multilevel analysis. RESULTS: PF components for boys and girls improved over age (U14-U16) (ES ...
November 2016: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27704644/mobility-and-muscle-strength-in-male-former-elite-endurance-and-power-athletes-aged-66-91%C3%A2-years
#13
S Manderoos, N Wasenius, M K Laine, U M Kujala, E Mälkiä, J Kaprio, S Sarna, H M Bäckmand, J A Kettunen, O J Heinonen, A M Jula, S Aunola, J G Eriksson
The aim of this cross-sectional study was to compare mobility and muscle strength in male former elite endurance and power athletes aged 66-91 years (n = 150; 50 men in both former elite athlete groups and in their control group). Agility, dynamic balance, walking speed, chair stand, self-rated balance confidence (ABC-scale), jumping height, and handgrip strength were assessed. Former elite power athletes had better agility performance time than the controls (age- and body mass index, BMI-adjusted mean difference -3...
October 5, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27681218/the-development-and-optimisation-of-a-quantitative-physical-fitness-scoring-system-for-use-amongst-naval-service-personnel
#14
Cliodhna Sargent, Sean Lacey, Cormac Gebruers, Jim O'Mahony
BACKGROUND: A lack of research currently exists in relation to the current physical fitness testing system that is used within the Irish Naval Service, not only in relation to the tests that are used but also in relation to the scores that should be achieved in order to pass the test. As such the aim of this study was to select tests for various components of physical fitness and create a scoring system that could be used to assess individuals more comprehensively. MATERIALS AND METHODS: Seventy-five individuals took part in the study (71 males, 4 females)...
2016: International Maritime Health
https://www.readbyqxmd.com/read/27669184/physical-fitness-reference-standards-in-french-youth-the-bouge-program
#15
Jérémy Vanhelst, Julien Labreuche Julien, Laurent Beghin, Elodie Drumez, Paul S Fardy, Didier Chapelot, Jacques Mikulovic, Zekya Ulmer
The aim of this study was to establish gender- and age-specific physical fitness percentiles in French youth. A sample of 11 186 children and adolescents (5 546 boys, 5 640 girls), ages 10-15 years, was assessed in the French national BOUGE study. Participants were tested on 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 x 5 m shuttle run test. Percentile values were estimated for French youth as a function of age stratified by gender using the generalized additive model for location, scale and shape (GAMLSS)...
September 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27666966/kinematic-diversity-in-rorqual-whale-feeding-mechanisms
#16
David E Cade, Ari S Friedlaender, John Calambokidis, Jeremy A Goldbogen
Rorqual whales exhibit an extreme lunge filter-feeding strategy characterized by acceleration to high speed and engulfment of a large volume of prey-laden water [1-4]. Although tagging studies have quantified the kinematics of lunge feeding, the timing of engulfment relative to body acceleration has been modeled conflictingly because it could never be directly measured [5-7]. The temporal coordination of these processes has a major impact on the hydrodynamics and energetics of this high-cost feeding strategy [5-9]...
October 10, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27662488/evaluation-of-basketball-specific-agility-applicability-of-pre-planned-and-non-planned-agility-performances-for-differentiating-playing-positions-and-playing-levels
#17
Damir Sekulic, Miran Pehar, Ante Krolo, Miodrag Spasic, Ognjen Uljevic, Julio Calleja-Gonzalez, Tine Sattler
The importance of agility in basketball is well known, but there is an evident lack of studies examining basketball-specific agility performances in high-level players. The aim of this study was to determine the reliability and discriminative validity of one standard agility-test (T-TEST), and four newly developed basketball-specific agility-tests, in defining playing-positions and performance-levels in basketball. The study comprised 110 high-level male basketball players (height: 194.92±8.09 cm; body mass: 89...
September 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27648171/a-combined-exercise-model-for-improving-muscle-strength-balance-walking-distance-and-motor-agility-in-multiple-sclerosis-patients-a-randomized-clinical-trial
#18
Bahram Sangelaji, Mohammadreza Kordi, Farzaneh Banihashemi, Seyed Massood Nabavi, Sara Khodadadeh, Maryam Dastoorpoor
BACKGROUND: Multiple sclerosis (MS) is a neurological disease with a variety of signs and symptoms. Exercise therapy has been shown to improve physical functions in MS. However, questions about an optimal exercise therapy remain. In this regard, we suggest a combined exercise therapy including aerobic and resistance exercises for MS patients. The study is designed to observe, test and compare the effects of proposed combined exercises on strength, balance, agility, fatigue, speed, and walking distance in people with mild to moderate MS [0 < expanded disability status scale (EDSS) < 5]...
July 6, 2016: Iranian Journal of Neurology
https://www.readbyqxmd.com/read/27625411/froghopper-inspired-direction-changing-concept-for-miniature-jumping-robots
#19
Gwang-Pil Jung, Kyu-Jin Cho
To improve the maneuverability and agility of jumping robots, several researchers have studied steerable jumping mechanisms. This steering ability enables robots to reach a particular target by controlling their jumping direction. To this end, we propose a novel direction-changing concept for miniature jumping robots. The proposed concept allows robots to be steerable while exerting minimal effects on jumping performance. The key design principles were adopted from the froghopper's power-producing hind legs and the moment cancellation accomplished by synchronized leg operation...
2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27619491/physical-fitness-and-anthropometric-normative-values-among-colombian-indian-schoolchildren
#20
Jeison Alexander Ramos-Sepúlveda, Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Mikel Izquierdo, Antonio García-Hermoso
BACKGROUND: Substantial evidence indicates that children's physical fitness levels are markers of their lifestyles and their cardio-metabolic health profile and are predictors of the future risk of chronic diseases such as obesity, cardiometabolic disease, skeletal health and mental health. However, fitness reference values for ethnic children and adolescents have not been published in a Latin-American population. Therefore, the aim of the study was to provide sex- and age-specific physical fitness and anthropometric reference standards among Colombian-Indian schoolchildren...
2016: BMC Public Health
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