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https://www.readbyqxmd.com/read/29326896/relationship-between-sitting-volleyball-performance-and-field-fitness-of-sitting-volleyball-players-in-korea
#1
Bogja Jeoung
The purpose of this study was to evaluate the relationship between sitting volleyball performance and the field fitness of sitting volleyball players. Forty-five elite sitting volleyball players participated in 10 field fitness tests. Additionally, the players' head coach and coach assessed their volleyball performance (receive and defense, block, attack, and serve). Data were analyzed with SPSS software version 21 by using correlation and regression analyses, and the significance level was set at P< 0.05...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29285411/simple-training-tricks-for-mastering-and-taming-bypass-procedures-in-neurosurgery
#2
Ahmad Hafez, Rahul Raj, Michael T Lawton, Mika Niemelä
Background: Neurosurgeons devoted to bypass neurosurgery or revascularization neurosurgery are becoming scarcer. From a practical point of view, "bypass neurosurgeons" are anastomosis makers, vessels technicians, and time-racing repairers of vessel walls. This requires understanding the key features and hidden tricks of bypass surgery. The goal of this paper is to provide simple and inexpensive tricks for taming the art of bypass neurosurgery. Most of these tricks and materials described can be borrowed, donated, or purchased inexpensively...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29283689/physiological-and-physical-responses-according-to-the-game-surface-in-a-soccer-simulation-protocol
#3
Jorge Lopez-Fernandez, Javier Sánchez-Sánchez, Jorge García-Unanue, José Luis Felipe, Enrique Colino-Acevedo, Leonor Gallardo
PURPOSE: Recent studies have shown that soccer player's responses are similar on natural grass (NG) and artificial turf (AT), but they did not control the mechanical properties of these surfaces. This work aimed to analyse the influence of the game surface on amateur soccer player's physical and physiological responses using a soccer simulation protocol (SSP). METHODS: Sixteen amateur players performed three bouts of the SSP on AT and NG. The mechanical properties of both surfaces were recorded...
December 28, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29260420/physical-characteristics-of-players-within-the-australian-football-league-participation-pathways-a-systematic-review
#4
REVIEW
Jade A Z Haycraft, Stephanie Kovalchik, David B Pyne, Sam Robertson
BACKGROUND: Australian football (AF) players require endurance, strength, speed, and agility to be successful. Tests assessing physical characteristics are commonly used for talent identification; however, their ability to differentiate between players across the Australian Football League's (AFL) participation pathway remains unclear. The objective of this review was to quantify the physical characteristics of male AF players across the AFL participation pathway. METHODS: A search of databases was undertaken...
December 19, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29248350/effectiveness-of-kinesiology-tape-on-sports-performance-abilities-in-athletes-a-systematic-review
#5
REVIEW
Jennifer C Reneker, Lisa Latham, Ryan McGlawn, Matthew R Reneker
OBJECTIVE: Establish the effectiveness of kinesiology tape (KT) on sports performance abilities compared to that of other tapes or no tape with consideration to the application methodology, timeframe, and outcome measurement. METHODS: PubMed, Embase, and PEDro databases were systematically searched. The following inclusion criteria were applied: 1) participants were healthy athletes, 2) compared any brand of dynamic KT to other types of tape (sham or therapeutic) and/or no tape, 3) measured some construct of functional sports performance, 4) involved randomization...
October 9, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29239989/a-systematic-review-of-the-association-between-physical-fitness-and-musculoskeletal-injury-risk-part-3-flexibility-power-speed-balance-and-agility
#6
Sarah J de la Motte, Peter Lisman, Timothy C Gribbin, Kaitlin Murphy, Patricia A Deuster
We performed a systematic review and evaluation of the existing scientific literature on the association between flexibility, power, speed, balance, and agility, and musculoskeletal injury (MSK-I) risk in military and civilian populations. MEDLINE, EBSCO, EMBASE, and the Defense Technical Information Center were searched for original studies published from 1970 through 2015 that examined associations between these physical fitness measures (flexibility, power, speed, balance, and agility) and MSK-I. Methodological quality and strength of the evidence were determined following criteria adapted from previously published systematic reviews...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29228409/short-term-effects-of-combined-high-intensity-strength-and-sprint-interval-training-on-anthropometric-characteristics-and-physical-performance-of-elite-team-handball-players
#7
Souhail Hermassi, Mohamed Souhail Chelly, Georg Fieseler, Thomas Bartels, Stephan Schulze, Karl-Stefan Delank, Roy J Shepard, René Schwesig
Muscular strength and speed are critical physical factors in determining the technical and tactical skills of elite team handball players. This study thus investigated the effect of high-intensity muscular strength and sprint interval training (SIT) on lower limb explosive performance and anthropometric characteristics in 22 male handball athletes aged 20.2 ± 0.1 years. A training group (TG, n = 12) and a control group (CG, n = 10) were followed over 8 weeks parallel to regular handball training...
December 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29199782/anthropometric-and-physiological-characteristics-of-male-soccer-players-according-to-their-competitive-level-playing-position-and-age-group-a-systematic-review
#8
Maamer Slimani, Pantelis T Nikolaidis
BACKGROUND: The aim of the present systematic review was to profile soccer players' anthropometric, physiological, and physical attributes relative to different competitive levels, playing positions and age groups. METHODS: The systematic search was conducted using different databases and according to the Population/Intervention or Exposure/Comparison/Outcome(s) [PICO] criteria. RESULTS: The present review shows that the somatotype characteristics, percentage (%) of body fat, maximal oxygen uptake (VO2max), repeatedsprint ability (RSA), running speed, strength, and muscular power of the lower limbs were the most powerful discriminators between male soccer players of different competitive levels, playing positions, and age groups...
December 1, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29191931/european-normative-values-for-physical-fitness-in-children-and-adolescents-aged-9-17-years-results-from-2-779-165-eurofit-performances-representing-30-countries
#9
Grant R Tomkinson, Kevin D Carver, Frazer Atkinson, Nathan D Daniell, Lucy K Lewis, John S Fitzgerald, Justin J Lang, Francisco B Ortega
OBJECTIVE: To develop sex-specific and age-specific normative values for the nine Eurofit tests in European children and adolescents aged 9-17 years. METHODS: A systematic review was undertaken to identify papers that explicitly reported descriptive results for at least one of nine Eurofit tests (measuring balance, muscular strength, muscular endurance, muscular power, flexibility, speed, speed-agility and cardiorespiratory fitness (CRF)) on children and adolescents...
November 30, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29181250/the-efficacy-of-angle-matched-isokinetic-knee-flexor-and-extensor-strength-parameters-in-predicting-agility-test-performance
#10
Matt Greig, James Naylor
Background: Agility is a fundamental performance element in many sports, but poses a high risk of injury. Hierarchical modelling has shown that eccentric hamstring strength is the primary determinant of agility performance. Purpose: The purpose of this study was to investigate the relationship between knee flexor and extensor strength parameters and a battery of agility tests. Study Design: Controlled laboratory study. Methods: Nineteen recreational intermittent games players completed an agility battery and isokinetic testing of the eccentric knee flexors (eccH) and concentric knee extensors (conQ) at 60, 180 and 300°·s-1...
October 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29150928/application-of-high-speed-counter-current-chromatography-and-hplc-to-separate-and-purify-of-three-polyacetylenes-from-platycodon-grandiflorum
#11
Bao Chen, Zhengbo Liu, Yuwei Zhang, Wei Li, Yanjun Sun, Yufang Wang, Yanhua Wang, Yinshi Sun
Three polyacetylenes were isolated and purified from Platycodon grandiflorum A. DC for the first time by high-speed counter-current chromatography using a two-phase solvent system composed of hexane/ethyl acetate/methanol/water (1:31:1:31, v/v/v/v) and high-performance liquid chromatography with an Agilent ZORBAX(®) SB-C18 column (4.6 mm × 150 mm, 5 μm). After separation by high-speed counter-current chromatography and high-performance liquid chromatography, we obtained 3.5 mg of platetyolin A, 4.1 mg of platetyolin B, and 18...
November 18, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29145504/quantifying-performance-on-an-outdoor-agility-drill-using-foot-mounted-inertial-measurement-units
#12
Antonia M Zaferiou, Lauro Ojeda, Stephen M Cain, Rachel V Vitali, Steven P Davidson, Leia Stirling, Noel C Perkins
Running agility is required for many sports and other physical tasks that demand rapid changes in body direction. Quantifying agility skill remains a challenge because measuring rapid changes of direction and quantifying agility skill from those measurements are difficult to do in ways that replicate real task/game play situations. The objectives of this study were to define and to measure agility performance for a (five-cone) agility drill used within a military obstacle course using data harvested from two foot-mounted inertial measurement units (IMUs)...
2017: PloS One
https://www.readbyqxmd.com/read/29140914/sequencing-effects-of-neuromuscular-training-on-physical-fitness-in-youth-elite-tennis-players
#13
Jaime Fernandez-Fernandez, Urs Granacher, David Sanz-Rivas, Jose Manuel Sarabia Marín, Jose Luis Hernandez-Davo, Manuel Moya
Fernandez-Fernandez, J, Granacher, U, Sanz-Rivas, D, Sarabia Marín, JM, Hernandez-Davo, JL, and Moya, M. Sequencing effects of neuromuscular training on physical fitness in youth elite tennis players. J Strength Cond Res XX(X): 000-000, 2017-The aim of this study was to analyze the effects of a 5-week neuromuscular training (NMT) implemented before or after a tennis session in prepubertal players on selected components of physical fitness. Sixteen elite and well-trained tennis players with a mean age of 12...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29134974/differences-in-physical-physiological-and-motor-performance-traits-between-volleyball-and-basketball-athletes-in-a-university-in-ghana
#14
A Obour, M O Moses, B Baffour-Awuah, B Asamoah, P K Sarpong, F Osei, L G Akwa, E J Appiah
Physical, physiological and motor performance traits play substantial role in both volleyball (VB) and basketball(BB) competitions. The differences in these traits among University athletes in Ghana have not been reported. Hence, thisstudy documents and compares the physical, physiological and motor performance traits of VB and BB university athletes.Purposive sampling technique involving thirty-five university athletes (24 males and 11 females) with mean age of 21.77 ±2.03years was used. Height, weightn, waist and hip circumferences, waist to hip ratio (WHR), body mass index (BMI), heartrate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP), shoulder muscular endurance (SME), abdominal muscular endurance (AME), left and right Arm Strength, Leg Power, Reaction time, Agility and Speed traits were measured...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29116831/clinician-friendly-physical-performance-tests-for-the-knee
#15
Jerrod J Harrison, Marissa K Yorgey, Alexander J Csiernik, Joseph H Vogler, Kenneth E Games
Reference:  Hegedus EJ, McDonough S, Bleakley C, Cook CE, Baxter GD. Clinician-friendly lower extremity physical performance measures in athletes: a systematic review of measurement properties and correlation with injury. Part 1: the tests for knee function including the hop tests. Br J Sports Med. 2015;49(10):642-648. CLINICAL QUESTION:   Do individual physical performance tests (PPTs) used as measures for lower extremity function have any relationship to injuries in athletes aged 12 years or older? DATA SOURCES:   Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to locate articles...
November 8, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29112051/a-comparison-of-the-effects-of-short-term-plyometric-and-resistance-training-on-lower-body-muscular-performance
#16
Malcolm T Whitehead, Timothy P Scheett, Michael R McGuigan, N Z Auckland, Angel V Martin
The purpose of this study was to compare effects of short-term plyometric and resistance training on lower body muscular performance. A convenience sample of thirty males aged 21.3 ± 1.8 years, height 177.3 ± 9.4 cm, mass 80.0 ± 2.6 kg, body fat 16.1 ± 1.2 % participated in this investigation. Participants were grouped and participated in progressive plyometric (PLT) or resistance training (SRT) twice per week for eight consecutive weeks or a control (CNT) group that did not participate in any training...
November 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29094632/anthropometric-characteristics-and-physical-fitness-in-rural-and-urban-11-to-16-year-old-melanesian-adolescents-a-cross-sectional-study-in-new-caledonian-schools
#17
Paul Zongo, Stephane Frayon, Sophie Antoine-Jonville, Guillaume Wattelez, Pierre-Yves Le Roux, Olivier Hue, Olivier Galy
We evaluated anthropometric characteristics and physical fitness in 556 Melanesian adolescents from rural and urban New Caledonia to build health education programs focused on physical activity. In 2013, body weight, height, skinfold thickness, lean body mass (LBM), percentage fat body mass (%FBM), physical fitness (power, agility, speed, maximal aerobic speed [MAS], estimated VO2max), and self-reported physical activity were assessed. Rural adolescents were significantly shorter and faster, had lower weight, %FBM, LBM, and power output and similar MAS and VO2max, and were more active than urban adolescents...
October 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/29091479/case-study-the-effect-of-nutritional-intervention-on-body-composition-and-physical-performance-of-a-female-squash-player
#18
Christopher Rosimus
The body composition of a squash player may affect athletic performance as carrying excessive body fat may increase injury risk and impair agility and speed. This case study outlines the effect of a nutritional intervention on body composition, vitamin D status and physical performance of a female squash player. A structured, 6-week moderate energy-restricted diet (70-78% of Estimated Energy Requirement (EER) of 2300 kcal was implemented with weekly support. A daily supplement of vitamin D, omega 3 fatty acids, and a multivitamin/multimineral and whey protein was used...
November 1, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29074288/strategy-quantification-using-body-worn-inertial-sensors-in-a-reactive-agility-task
#19
Chika U Eke, Stephen M Cain, Leia A Stirling
Agility performance is often evaluated using time-based metrics, which provide little information about which factors aid or limit success. The objective of this study was to better understand agility strategy by identifying biomechanical metrics that were sensitive to performance speed, which were calculated with data from an array of body-worn inertial sensors. Five metrics were defined (normalized number of foot contacts, stride length variance, arm swing variance, mean normalized stride frequency, and number of body rotations) that corresponded to agility terms defined by experts working in athletic, clinical, and military environments...
October 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29065054/the-importance-of-body-composition-in-the-national-hockey-league-combine-physiologic-assessments
#20
Nathan A Chiarlitti, Patrick Delisle-Houde, Ryan E R Reid, Cory Kennedy, Ross E Andersen
The National Hockey League (NHL) combine was designed to assess draft-eligible players based on body composition, speed, power, and strength. The importance of body composition in the battery of combine physical tests was investigated and differences in results based on position were explored. Thirty-seven elite male Canadian university hockey players (age = 22.86 ± 1.55 years, weight = 87.21 ± 6.52 kg, height = 181.69 ± 6.19 cm) participated in the study at the beginning of their hockey season. All participants underwent physical testing (as outlined in the 2016 NHL combine) and one total body dual energy x-ray absorptiometry (DXA) scan to measure body composition...
October 23, 2017: Journal of Strength and Conditioning Research
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