keyword
MENU ▼
Read by QxMD icon Read
search

Maximal lactate steady state

keyword
https://www.readbyqxmd.com/read/29161112/reply-to-discussion-of-can-measures-of-critical-power-precisely-estimate-the-maximal-metabolic-steady-state-is-it-still-necessary-to-compare-critical-power-to-maximal-lactate-steady-state-when-is-it-appropriate-to-compare-critical-power-to-maximal-lactate-steady
#1
Daniel A Keir, Felipe Mattioni Maturana, Juan M Murias
No abstract text is available yet for this article.
November 21, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29161111/discussion-of-can-measures-of-critical-power-precisely-estimate-the-maximal-metabolic-steady-state-is-it-still-necessary-to-compare-critical-power-to-maximal-lactate-steady-state
#2
Ricardo Dantas de Lucas
No abstract text is available yet for this article.
November 21, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29148629/carbohydrate-mouth-rinse-improves-cycling-performance-carried-out-until-the-volitional-exhaustion
#3
Bruno Bavaresco Gambassi, Ylana Gomes de Santana Barros Leal, Edson R Pinheiro Dos Anjos, Bruna A Antonelli, Daniela C Gomes Gonçalves E Silva, Iracema H Pires de Mélo Montenegro, Rita di Cássia de Oliveira Angelo, Isis S Correia Moura, Paulo A Schwingel
BACKGROUND: Carbohydrates (CHO) are among the most investigated nutritional ergogenic aids, and may be consumed in different forms, e.g., mouth rinse with carbohydrate solution (MRCS). In this sense, the aim of this study was to evaluate the impact of MRCS on the performance of physically active individuals undergoing a physical exercise session carried out until the volitional exhaustion. METHODS: This is a counter-balanced randomized study, with a double-blind design...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29035635/effects-of-varying-the-step-duration-on-the-determination-of-lactate-thresholds-in-elite-rowers
#4
Pitre C Bourdon, Sarah M Woolford, Jonathan D Buckley
This study aimed to identify the minimum increment duration required to accurately assess two distinct lactate thresholds. Twenty-one elite rowers (12 female, 9 males) each performed 8-9 rowing tests comprising: 1) five progressive incremental tests (3, 4, 5, 7 or 10 min steps); and 2) at least three 30-min constant-intensity maximal lactate steady state (MLSS) assessments. Power output (PO) at lactate threshold 1 (LT1) was higher in the 3- and 4-min incremental tests. No other measures were different for LT1...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28712262/evaluation-of-efforts-in-untrained-wistar-rats-following-exercise-on-forced-running-wheel-at-maximal-lactate-steady-state
#5
Sajjad Rezaei, Hamid Agha-Alinejad, Mahdieh Molanouri Shamsi, Mahvash Jafari, Fabricio Azevedo Voltarelli, Alireza Naderi, Conrad Earnest
PURPOSE: We aimed to examine the effect of running speed on metabolic responses associated with maximal lactate steady state (MLSS) in rats during forced running wheel (FRW) exercise. METHODS: Forty male adult Wistar rats were divided into seven groups. The blood lactate threshold and peak running speed were determined for an incremental power test group. Five groups participated in constant power tests at intensities 10, 13, 14.5, 16, and 17.5 m/min to determine MLSS and a non-exercise group was chosen as the control...
March 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28642717/the-lactate-minimum-test-concept-methodological-aspects-and-insights-for-future-investigations-in-human-and-animal-models
#6
REVIEW
Leonardo H D Messias, Claudio A Gobatto, Wladimir R Beck, Fúlvia B Manchado-Gobatto
In 1993, Uwe Tegtbur proposed a useful physiological protocol named the lactate minimum test (LMT). This test consists of three distinct phases. Firstly, subjects must perform high intensity efforts to induce hyperlactatemia (phase 1). Subsequently, 8 min of recovery are allowed for transposition of lactate from myocytes (for instance) to the bloodstream (phase 2). Right after the recovery, subjects are submitted to an incremental test until exhaustion (phase 3). The blood lactate concentration is expected to fall during the first stages of the incremental test and as the intensity increases in subsequent stages, to rise again forming a "U" shaped blood lactate kinetic...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28345160/increasing-skeletal-muscle-carnitine-availability-does-not-alter-the-adaptations-to-high-intensity-interval-training
#7
Christopher E Shannon, Reza Ghasemi, Paul L Greenhaff, Francis B Stephens
Increasing skeletal muscle carnitine availability alters muscle metabolism during steady-state exercise in healthy humans. We investigated whether elevating muscle carnitine, and thereby the acetyl-group buffering capacity, altered the metabolic and physiological adaptations to 24 weeks of high-intensity interval training (HIIT) at 100% maximal exercise capacity (Wattmax ). Twenty-one healthy male volunteers (age 23±2 years; BMI 24.2±1.1 kg/m(2) ) performed 2 × 3 minute bouts of cycling exercise at 100% Wattmax , separated by 5 minutes of rest...
March 27, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28302463/critical-power-testing-or-self-selected-cycling-which-one-is-the-best-predictor-of-maximal-metabolic-steady-state
#8
Felipe Mattioni Maturana, Daniel A Keir, Kaitlin M McLay, Juan M Murias
Critical power (CP) demarcates the boundary between heavy and very heavy exercise intensity domains, and therefore, the power output (PO) that can be sustained at the maximal metabolic steady-state during constant-PO exercise (i.e., maximal lactate steady-state (MLSS)). However, the estimated CP does not always reflect a sustainable intensity of exercise, where blood lactate concentration ([La]) and oxygen uptake (V˙O2) reach a plateau. OBJECTIVES: To test cyclists' ability to predict their highest PO associated with metabolic steady-state based on their own perception of effort...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28282663/reliability-and-validity-of-a-new-specific-field-test-of-aerobic-capacity-with-the-ball-for-futsal-players
#9
Ricardo Barbieri, Fabio Barbieri, Fabio Milioni, Julio Dos-Santos, Marcelo Soares, Alessandro Zagatto, Marcelo Papoti
The aim of this study was to establish the validity and reliability and verification of the reproducibility of the lactate minimum test (LM) to predict the maximal lactate steady state exercise intensity (MLSS) on a futsal-specific circuit (Futsal_circuit) which takes into consideration the technical movements performed. 16 male Brazilian futsal players (body mass: 67.7±8.3 kg; height: 1.73±0.05 m) were distributed randomly into 2 studies with 8 athletes in each (Study A - reproducibility; Study B - validity)...
March 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28245246/oxygen-uptake-kinetics-and-energy-system-s-contribution-around-maximal-lactate-steady-state-swimming-intensity
#10
Jailton Gregório Pelarigo, Leandro Machado, Ricardo Jorge Fernandes, Camila Coelho Greco, João Paulo Vilas-Boas
The purpose of this study was to examine the oxygen uptake ([Formula: see text]) kinetics and the energy systems' contribution at 97.5, 100 and 102.5% of the maximal lactate steady state (MLSS) swimming intensity. Ten elite female swimmers performed three-to-five 30 min submaximal constant swimming bouts at imposed paces for the determination of the swimming velocity (v) at 100%MLSS based on a 7 x 200 m intermittent incremental protocol until voluntary exhaustion to find the v associated at the individual anaerobic threshold...
2017: PloS One
https://www.readbyqxmd.com/read/28240707/comparison-of-different-methods-for-the-swimming-aerobic-capacity-evaluation
#11
Jailton Gregório Pelarigo, Ricardo Jorge Fernandes, João Ribeiro, Benedito Sérgio Denadai, Camila Coelho Greco, João Paulo Vilas-Boas
This study compared velocity (v) and bioenergetical factors using different methods applied for the swimming aerobic capacity evaluation. Ten elite female swimmers (17.6 ± 1.9 yrs., 1.70 ± 0.05 m and 61.3 ± 5.8 kg) performed an intermittent incremental velocity protocol until voluntary exhaustion to determine the v associated to the individual anaerobic threshold (IAnT), ventilatory threshold (VT), heart rate threshold (HRT), lactate threshold fixed in 3.5 mmol.L (LT3.5) and maximal oxygen uptake (V[Combining Dot Above]O2max)...
February 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28128633/reliability-of-time-to-exhaustion-and-selected-psycho-physiological-variables-during-constant-load-cycling-at-the-maximal-lactate-steady-state
#12
Oliver Faude, Anne Hecksteden, Daniel Hammes, Franck Schumacher, Eric Besenius, Billy Sperlich, Tim Meyer
The maximal lactate steady-state (MLSS) is frequently assessed for prescribing endurance exercise intensity. Knowledge of the intra-individual variability of the MLSS is important for practical application. To date, little is known about the reliability of time-to-exhaustion and physiological responses to exercise at MLSS. Twenty-one healthy men (age, 25.2 (SD 3.3) years; height, 1.83 (0.06) m; body mass, 78.9 (8.9) kg; maximal oxygen uptake, 57.1 (10.7) mL·min(-1)·kg(-1)) performed 1 incremental exercise test, and 2 constant-load tests to determine MLSS intensity...
February 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28090142/the-midpoint-between-ventilatory-thresholds-approaches-maximal-lactate-steady-state-intensity-in-amateur-cyclists
#13
A B Peinado, Dm Pessôa Filho, V Díaz, P J Benito, M Álvarez-Sánchez, A G Zapico, F J Calderón
The aim was to determine whether the midpoint between ventilatory thresholds (MPVT) corresponds to maximal lactate steady state (MLSS). Twelve amateur cyclists (21.0 ± 2.6 years old; 72.2 ± 9.0 kg; 179.8 ± 7.5 cm) performed an incremental test (25 W·min(-1)) until exhaustion and several constant load tests of 30 minutes to determine MLSS, on different occasions. Using MLSS determination as the reference method, the agreement with five other parameters (MPVT; first and second ventilatory thresholds: VT1 and VT2; respiratory exchange ratio equal to 1: RER = 1...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28033123/accuracy-of-a-modified-lactate-minimum-test-and-reverse-lactate-threshold-test-to-determine-maximal-lactate-steady-state
#14
Patrick Wahl, Christian Manunzio, Florian Vogt, Sarah Strütt, Prisca Volmary, Wilhelm Bloch, Joachim Mester
This study evaluated the accuracy of a modified-lactate-minimum-test (mLMT), a modified-reverse-lactate-threshold-test (mRLT), in comparison to two established threshold concepts (OBLA & mDmax) to determine power output at maximal-lactate-steady-state (MLSS) in cycling. Nineteen subjects performed an mLMT, an mRLT, a graded-exercise-test (100W start, +20W every 3 min) and 3 or more constant-load tests of 30 minutes to determine power output at MLSS. The mLMT and mRLT both consisted of an initial lactate priming-segment, followed by a short recovery phase...
December 20, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28006434/lactate-minimum-underestimates-the-maximal-lactate-steady-state-in-swimming-mice
#15
COMPARATIVE STUDY
Natalia Almeida Rodrigues, Adriana Souza Torsoni, Thais Fante, Ivan Gustavo Masselli Dos Reis, Claudio Alexandre Gobatto, Fúlvia Barros Manchado-Gobatto
The intensity of lactate minimum (LM) has presented a good estimate of the intensity of maximal lactate steady-state (MLSS); however, this relationship has not yet been verified in the mouse model. We proposed validating the LM protocol for swimming mice by investigating the relationship among intensities of LM and MLSS as well as differences between sexes, in terms of aerobic capacity. Nineteen mice (male: 10, female: 9) were submitted to the evaluation protocols for LM and MLSS. The LM protocol consisted of hyperlactatemia induction (30 s exercise (13% body mass (bm)), 30 s resting pause and exhaustive exercise (13% bm), 9 min resting pause and incremental test)...
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27918656/aerobic-evaluation-in-elite-slalom-kayakers-using-a-tethered-canoe-system-a-new-proposal
#16
Homero Gustavo Ferrari, Leonardo H D Messias, Ivan G M Reis, Claudio A Gobatto, Filipe A B Sousa, Camila C S Serra, Fúlvia B Manchado-Gobatto
BACKGROUND: Among other aspects, aerobic fitness is indispensable for performance in slalom canoe. PURPOSE: To propose the maximal-lactate steady-state (MLSS) and critical-force (CF) tests using a tethered canoe system as new strategies for aerobic evaluation in elite slalom kayakers. In addition, the relationship between the aerobic parameters from these tests and the kayakers' performances was studied. METHODS: Twelve male elite slalom kayakers from the Brazilian national team participated in this study...
August 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27896024/salinity-modulates-thermotolerance-energy-metabolism-and-stress-response-in-amphipods-gammarus-lacustris
#17
Kseniya P Vereshchagina, Yulia A Lubyaga, Zhanna Shatilina, Daria Bedulina, Anton Gurkov, Denis V Axenov-Gribanov, Boris Baduev, Elizaveta S Kondrateva, Mikhail Gubanov, Egor Zadereev, Inna Sokolova, Maxim Timofeyev
Temperature and salinity are important abiotic factors for aquatic invertebrates. We investigated the influence of different salinity regimes on thermotolerance, energy metabolism and cellular stress defense mechanisms in amphipods Gammarus lacustris Sars from two populations. We exposed amphipods to different thermal scenarios and determined their survival as well as activity of major antioxidant enzymes (peroxidase, catalase, glutathione S-transferase) and parameters of energy metabolism (content of glucose, glycogen, ATP, ADP, AMP and lactate)...
2016: PeerJ
https://www.readbyqxmd.com/read/27819154/can-measures-of-critical-power-precisely-estimate-the-maximal-metabolic-steady-state
#18
COMPARATIVE STUDY
Felipe Mattioni Maturana, Daniel A Keir, Kaitlin M McLay, Juan M Murias
Critical power (CP) conceptually represents the highest power output (PO) at physiological steady-state. In cycling exercise, CP is traditionally derived from the hyperbolic relationship of ∼5 time-to-exhaustion trials (TTE) (CPHYP). Recently, a 3-min all-out test (CP3MIN) has been proposed for estimation of CP as well the maximal lactate steady-state (MLSS). The aim of this study was to compare the POs derived from CPHYP, CP3MIN, and MLSS, and the oxygen uptake and blood lactate concentrations at MLSS. Thirteen healthy young subjects (age, 26 ± 3years; mass, 69...
November 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27792222/validation-of-the-non-exhaustive-test-to-determine-the-aerobic-capacity-in-swimming
#19
Claudio Alexandre Gobatto, Gustavo Gomes DE Araujo, Vanessa Santhiago, Marcelo Papoti, Fúlvia De Barros Manchado-Gobatto
BACKGROUND: Several methods of aerobic capacity evaluation have been applied to assess and prescribe the training sessions in swimming. However, most protocols either show exhaustive characteristics, triggering transitory stress period or several visits, influencing the session's organization. Thus, the purpose was to validate a double-bout exercise protocol for non-exhaustive aerobic capacity determination of swimmers. METHODS: Twelve swimmers were submitted to non-exhaustive and Maximal Lactate Steady State (MLSS) protocols...
October 28, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27613650/an-integrated-view-on-the-oxygenation-responses-to-incremental-exercise-at-the-brain-the-locomotor-and-respiratory-muscles
#20
REVIEW
Jan Boone, Kristof Vandekerckhove, Ilse Coomans, Fabrice Prieur, Jan G Bourgois
In the past two decades oxygenation responses to incremental ramp exercise, measured non-invasively by means of near-infrared spectroscopy at different locations in the body, have advanced the insights on the underpinning mechanisms of the whole-body pulmonary oxygen uptake ([Formula: see text]) response. In healthy subjects the complex oxygenation responses at the level of locomotor and respiratory muscles, and brain were simplified and quantified by the detection of breakpoints as a deviation in the ongoing response pattern as work rate increases...
December 2016: European Journal of Applied Physiology
keyword
keyword
6632
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"