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https://www.readbyqxmd.com/read/26349502/cardiorespiratory-considerations-in-dance-from-classes-to-performances
#1
REVIEW
Josianne Rodrigues-Krause, Mauricio Krause, Álvaro Reischak-Oliveira
When attempting to ascertain dancers' fitness levels, essential parameters, such as aerobic and anaerobic capacity, muscular power and strength, flexibility, and body composition, must be considered. Dance is characterized as an intermittent type of exercise, demanding energy from different metabolic pathways (aerobic and anaerobic, lactic or alactic). A dancer's maximum aerobic capacity (ranging from 37 to 57 ml·kg(-1)·min(-1)) is related to his or her dance style, gender, level of technical ability, and status in a dance company...
September 2015: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/26300016/sodium-bicarbonate-supplementation-improved-maod-but-is-not-correlated-with-200-and-400-m-running-performances-a-double-blind-crossover-and-placebo-controlled-study
#2
Gabriel Motta Pinheiro Brisola, Willian Eiji Miyagi, Henrique Santos da Silva, Alessandro Moura Zagatto
The aim of the study was to investigate the effects of acute supplementation of sodium bicarbonate (NaHCO3) on maximal accumulated oxygen deficit (MAOD) determined by a single supramaximal effort (MAODALT) in running and the correlation with 200- and 400-m running performances. Fifteen healthy men (age, 23 ± 4 years; maximal oxygen uptake, 50.6 ± 6.1 mL·kg(-1)·min(-1)) underwent a maximal incremental exercise test and 2 supramaximal efforts at 110% of the intensity associated with maximal oxygen uptake, which was carried out after ingesting either 0...
September 2015: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/25938450/physiological-responses-and-energetics-of-competitive-group-exercise-in-female-aerobic-gymnasts-with-different-levels-of-performance
#3
Roma Aleksandraviciene, Kristina Zaicenkoviene, Loreta Stasiule, Arvydas Stasiulis
This study investigated the aerobic fitness and physiologic and energetic responses during competitive exercise in aerobic gymnasts. The gymnasts performed a graded treadmill test and competitive group exercises. Energetic response was calculated from oxygen uptake and blood lactate changes. Peak oxygen uptake was similar in International (M = 45.4 ml · kg(-1) · min.(-1), SD = 3.9) and National (M = 44.7 ml · kg(-1) · min.(-1), SD = 3.6) level groups. During their competitive routines, total energy and the fractions of aerobic, anaerobic alactic, and anaerobic lactic energy were 1,847...
June 2015: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/25627804/association-between-anaerobic-components-of-the-maximal-accumulated-oxygen-deficit-and-30-second-wingate-test
#4
R Bertuzzi, M A P D M Kiss, M Damasceno, R S F Oliveira, A E Lima-Silva
The purpose of this study was to analyze the relationship between the anaerobic components of the maximal accumulated oxygen deficit (MAOD) and of the 30-second Wingate anaerobic test (30-WAnT). Nine male physical education students performed: a) a maximal incremental exercise test; b) a supramaximal constant workload test to determine the anaerobic components of the MAOD; and c) a 30-WAnT to measure the peak power (PP) and mean power (MP). The fast component of the excess post-exercise oxygen consumption and blood lactate accumulation were measured after the supramaximal constant workload test in order to determine the contributions made by alactic (ALMET) and lactic (LAMET) metabolism...
March 2015: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/25549780/the-science-of-badminton-game-characteristics-anthropometry-physiology-visual-fitness-and-biomechanics
#5
REVIEW
Michael Phomsoupha, Guillaume Laffaye
Badminton is a racket sport for two or four people, with a temporal structure characterized by actions of short duration and high intensity. This sport has five events: men's and women's singles, men's and women's doubles, and mixed doubles, each requiring specific preparation in terms of technique, control and physical fitness. Badminton is one of the most popular sports in the world, with 200 million adherents. The decision to include badminton in the 1992 Olympics Game increased participation in the game...
April 2015: Sports Medicine
https://www.readbyqxmd.com/read/25547736/vo%C3%A2-kinetics-and-metabolic-contributions-during-full-and-upper-body-extreme-swimming-intensity
#6
J Ribeiro, P Figueiredo, A Sousa, J Monteiro, J Pelarigo, J P Vilas-Boas, H M Toussaint, R F Fernandes
PURPOSE: Our purpose was to characterize the oxygen uptake ([Formula: see text]) kinetics, assess the energy systems contributions and determine the energy cost when swimming front crawl at extreme intensity. Complementarily, we compared swimming full body with upper body only. METHODS: Seventeen swimmers performed a 100 m maximal front crawl in two conditions: once swimming with full body and other using only the upper propulsive segments. The [Formula: see text] was continuously measured using a telemetric portable gas analyser (connected to a respiratory snorkel), and the capillary blood samples for lactate concentration analysis were collected...
May 2015: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/25412298/exercise-modality-effect-on-bioenergetical-performance-at-v%C3%AB-o2max-intensity
#7
Ana Sousa, Pedro Figueiredo, Paola Zamparo, David B Pyne, João P Vilas-Boas, Ricardo J Fernandes
PURPOSE: A bioenergetical analysis of different exercise modes near maximal oxygen consumption (V˙O2max) intensity is scarce, hampering the prescription of training to enhance performance. We assessed the time sustained in swimming, rowing, running, and cycling at an intensity eliciting V˙O2max and determined the specific oxygen uptake (V˙O2) kinetics and total energy expenditure (Etot-tlim). METHODS: Four subgroups of 10 swimmers, 10 rowers, 10 runners, and 10 cyclists performed (i) an incremental protocol to assess the velocity (vV˙O2max) or power (wV˙O2max) associated with V˙O2max and (ii) a square wave transition exercise from rest to vV˙O2max/wV˙O2max to assess the time to voluntary exhaustion (Tlim-100%V˙O2max)...
August 2015: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/25359133/changes-of-the-energetic-profile-in-masters-swimmers-over-a-season
#8
M I Ferreira, T M Barbosa, H P Neiva, J Vilaça-Alves, M J Costa, D A Marinho
AIM: The aim of this study was to track and compare the changes of performance and energetic profile of male and female masters swimmers during a season. METHODS: Eleven female (age: 34.7±7.3-y) and fourteen male (age: 35.6±7.4-y) with 4.2±3.7-y and 3.9±1.6-y of experience in masters, respectively, performed an all-out 200 m freestyle to evaluate total energy expenditure (Etot), aerobic (Aer), anaerobic lactic (AnL) and alactic (AnAl) contributions. The oxygen uptake (VO2) was measured immediately after the 200 m trial and the VO2 reached during the trial was estimated through the backward extrapolation of the O2 recovery curve...
December 2015: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/24665801/relations-between-bmi-body-mass-and-height-and-sports-competence-among-participants-of-the-2010-winter-olympic-games-does-sport-metabolic-demand-differentiate
#9
Arkadiusz Stanula, Robert Roczniok, Tomasz Gabryś, Urszula Szmatlan-Gabryś, Adam Maszczyk, Przemysław Pietraszewski
This study characterizes the athletes participating in the 2010 Winter Olympic Games in terms of body height, body mass and BMI. The studied sample consisted of athletes in the top 20 places of each of 14 sports disciplines (1460 cases). Data on the athletes' age, height, body mass, and sports specialization were obtained from the Olympic Games' official website and from the International Ski Federation. The sampled athletes were grouped according to the predominant type of energy metabolism during competition...
December 2013: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/24572964/the-energetics-of-semicontact-3-x-2-min-amateur-boxing
#10
Philip Davis, Renate M Leithäuser, Ralph Beneke
UNLABELLED: The energy expenditure of amateur boxing is unknown. PURPOSE: Total metabolic cost (Wtot) as an aggregate of aerobic (Waer), anaerobic lactic (W[lactate]), and anaerobic alactic (WPCr) energy of a 3 × 2-min semicontact amateur boxing bout was analyzed. METHODS: Ten boxers (mean ± SD [lower/upper 95% confidence intervals]) age 23.7 ± 4.1 (20.8/26.6) y, height 180.2 ± 7.0 (175.2/185.2) cm, body mass 70.6 ± 5.7 (66.5/74.7) kg performed a semicontact bout against handheld pads created from previously analyzed video footage of competitive bouts...
March 2014: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/24501570/a-laboratory-test-for-the-examination-of-alactic-running-performance
#11
Armin Kibele, David Behm
A new testing procedure is introduced to evaluate the alactic running performance in a 10s sprint task with near-maximal movement velocity. The test is performed on a motor-equipped treadmill with inverted polarity that increases mechanical resistance instead of driving the treadmill belt. As a result, a horizontal force has to be exerted against the treadmill surface in order to overcome the resistant force of the engine and to move the surface in a backward direction. For this task, subjects lean with their hands towards the front safety barrier of the treadmill railing with a slightly inclined body posture...
December 2005: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/24015935/magnesium-status-and-the-physical-performance-of-volleyball-players-effects-of-magnesium-supplementation
#12
RANDOMIZED CONTROLLED TRIAL
Luciana Setaro, Paulo Roberto Santos-Silva, Eduardo Yoshio Nakano, Cristiane Hermes Sales, Newton Nunes, Júlia Maria Greve, Célia Colli
The aim of this study was to test the hypothesis that magnesium supplementation influences the physical performance of volleyball players, as the efficacy of this approach remains questionable. Twenty-five professional male volleyball players were assigned randomly to experimental (350 mg Mg · d(-1), 4 weeks) and control groups (500 mg maltodextrin · d(-1), 4 weeks) maintaining inter-group homogeneity of urinary magnesium. Erythrocyte, plasma and urinary magnesium levels, plasma creatine kinase activity, lactate production, maximal oxygen uptake (VO2 max) and plyometric (squat jump, countermovement jump, countermovement jump with arm swing) and isokinetic (peak torque, potency and total work) performances were evaluated before (T0) and after (T1) supplementation...
2014: Journal of Sports Sciences
https://www.readbyqxmd.com/read/23609331/anaerobic-alactic-energy-assessment-in-middle-distance-swimming
#13
Ana Sousa, Pedro Figueiredo, Paola Zamparo, João Paulo Vilas-Boas, Ricardo J Fernandes
To estimate the anaerobic alactic contribution in a 200 m middle distance swimming trial by means of two different methods based: (1) on the fast component of the VO2 off-kinetics (Ana recovery) and (2) on the kinetics of maximal phosphocreatine splitting in the contracting muscle (Ana pcr). Ten elite male swimmers performed a 200 m front crawl trial at maximal velocity during which VO2 was directly measured using a telemetric portable gas analyser; during the recovery period VO2 data were collected until baseline values were reached...
August 2013: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/23438235/the-contribution-of-energy-systems-during-the-upper-body-wingate-anaerobic-test
#14
Dale Lovell, Ava Kerr, Aaron Wiegand, Colin Solomon, Leonie Harvey, Chris McLellan
The purpose of this study was to measure the contribution of the aerobic, anaerobic lactic, and alactic systems during an upper body Wingate Anaerobic test (WAnT). Oxygen uptake and blood lactate were measured before, during, and after the WAnT and body composition analyzed by dual-energy X-ray absorptiometry. The contribution of the energy systems was 11.4% ± 1.4%, 60.3% ± 5.6%, and 28.3% ± 4.9% for the aerobic, anaerobic lactic, and alactic systems, respectively.
February 2013: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/23393780/-physical-state-of-adolescents-with-the-high-stress-reactivity
#15
I A Krivolapchuk
Research objective was studying of features of a physical state (PS) adolescents of 13-14 years with high (n = 97) and low (n = 85) level of stress reactivity. The obtained data testify that in puberty formation of mechanisms of energy supply for muscle activity at adolescents with various level of stress reactivity occurs heterochronic and nonlinearly. Thus hyperreactivity boys of 13-14 years are characterised concerning high anaerobic alactic and the low aerobic productivity of the organism raised by physiological working costs and slowed down restoration after loadings of the big and submaximum capacity...
November 2012: Fiziologiia Cheloveka
https://www.readbyqxmd.com/read/22830586/on-the-kinetics-of-anaerobic-power
#16
John F Moxnes, Kjell Hausken, Øyvind Sandbakk
BACKGROUND: This study investigated two different mathematical models for the kinetics of anaerobic power. Model 1 assumes that the work power is linear with the work rate, while Model 2 assumes a linear relationship between the alactic anaerobic power and the rate of change of the aerobic power. In order to test these models, a cross country skier ran with poles on a treadmill at different exercise intensities. The aerobic power, based on the measured oxygen uptake, was used as input to the models, whereas the simulated blood lactate concentration was compared with experimental results...
2012: Theoretical Biology & Medical Modelling
https://www.readbyqxmd.com/read/22453254/determining-the-contribution-of-the-energy-systems-during-exercise
#17
Guilherme G Artioli, Rômulo C Bertuzzi, Hamilton Roschel, Sandro H Mendes, Antonio H Lancha, Emerson Franchini
One of the most important aspects of the metabolic demand is the relative contribution of the energy systems to the total energy required for a given physical activity. Although some sports are relatively easy to be reproduced in a laboratory (e.g., running and cycling), a number of sports are much more difficult to be reproduced and studied in controlled situations. This method presents how to assess the differential contribution of the energy systems in sports that are difficult to mimic in controlled laboratory conditions...
2012: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/22441830/energetics-of-basic-karate-kata
#18
Jens Bussweiler, Ulrich Hartmann
Knowledge about energy requirements during exercises seems necessary to develop training concepts in combat sport Karate. It is a commonly held view that the anaerobic lactic energy metabolism plays a key role, but this assumption could not be confirmed so far. The metabolic cost and fractional energy supply of basic Karate Kata (Heian Nidan, Shotokan style) with duration of about 30 s were analyzed. Six male Karateka [mean ± SD (age 29 ± 8 years; height 177 ± 5 cm, body mass 75 ± 9 kg)] with different training experience (advanced athletes, experts, elite athletes) were examined while performing one time and two time continuously the sport-specific movements...
December 2012: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/21911859/energy-system-contributions-to-the-special-judo-fitness-test
#19
COMPARATIVE STUDY
Emerson Franchini, Stanislaw Sterkowicz, Urszula Szmatlan-Gabrys, Tomasz Gabrys, Michal Garnys
PURPOSE: This study investigated the energy system contributions of judo athletes to the Special Judo Fitness Test (SJFT). METHODS: Fourteen male judo athletes performed the SJFT, which comprised three periods of judo activity (A = 15 s, B and C = 30 s) interspersed with 10 s rest intervals. During this test, one athlete threw two others positioned 6 m from each other using the ippon-seoi-nage technique. The fractions of the aerobic, anaerobic alactic and anaerobic lactic systems were calculated based on oxygen uptake, the fast component of excess postexercise oxygen uptake, and changes in net blood lactate, respectively...
September 2011: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/21769736/energy-demands-in-taekwondo-athletes-during-combat-simulation
#20
Fábio Angioluci Diniz Campos, Rômulo Bertuzzi, Antonio Carlos Dourado, Victor Gustavo Ferreira Santos, Emerson Franchini
The purpose of this study was to investigate energy system contributions and energy costs in combat situations. The sample consisted of 10 male taekwondo athletes (age: 21 ± 6 years old; height: 176.2 ± 5.3 cm; body mass: 67.2 ± 8.9 kg) who compete at the national or international level. To estimate the energy contributions, and total energy cost of the fights, athletes performed a simulated competition consisting of three 2 min rounds with a 1 min recovery between each round. The combats were filmed to quantify the actual time spent fighting in each round...
April 2012: European Journal of Applied Physiology
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