age-group swimmers. 6 Despite this, there is a paucity of information in the literature regarding the most valid method of estimation or the most appropriate protocol for the determination of sLT in senior competitive swimmers. Testing the most appropriate method to determine sLT, and corresponding
Search Results
The Method but Not the Protocol Affects Lactate-Threshold Determination in Competitive Swimmers
Gavriil G. Arsoniadis, Ioannis S. Nikitakis, Michael Peyrebrune, Petros G. Botonis, and Argyris G. Toubekis
Toe and Earlobe Capillary Blood Sampling for Lactate Threshold Determination in Rowing
Jacky J. Forsyth, Chris Mann, and James Felix
Purpose:
In rowing ergometry, blood for determining lactate concentration can be removed from the toe tip without the rower having to stop. The purpose of the study was to examine whether sampling blood from the toe versus the earlobe would affect lactate threshold (Tlac) determination.
Methods:
Ten physically active males (mean ± age 21.2 ± 2.3 y; stature 179.2 ± 7.5 cm; body mass 81.7 ± 12.7 kg) completed a multistage, 3 min incremental protocol on the Concept II rowing ergometer. Blood was sampled simultaneously from the toe tip and earlobe between stages. Three different methods were used to determine Tlac.
Results:
There were wider variations due to the method of Tlac determination than due to the sample site; for example, ANOVA results for power output were F(1.25, 11.25) = 11.385, P = .004 for method and F(1, 9) = 0.633, P = .45 for site. The greatest differences in Tlac due to sample site in rowing occurred when Tlac was determined using an increase in blood lactate concentration by >1 mmol/L from baseline (TlacΔ1).
Conclusions:
The toe tip can be used as a suitable sample site for blood collection during rowing ergometry, but caution is needed when using the earlobe and toe tip interchangeably to prescribe training intensities based on Tlac, especially when using TlacΔ1 or at lower concentrations of lactate.
Remote Determination of Critical Speed and Critical Power in Recreational Runners
Ben Hunter, Adam Ledger, and Daniel Muniz-Pumares
best performances recorded for a discrete set of distances over several weeks. However, it is worth highlighting the determination of CS/CP requires maximal efforts performed in the severe domain; therefore, this assumes that best efforts observed during training represent a maximal effort. 7 , 8
Effects of Varying the Step Duration on the Determination of Lactate Thresholds in Elite Rowers
Pitre C. Bourdon, Sarah M. Woolford, and Jonathan D. Buckley
, measurement of MLSS is not easily assessed, requiring several constant-load tests to be performed with different intensities on different days; therefore, it does not lend itself well to routine assessment. 7 , 10 While the determination of MLSS requires multiple test sessions, threshold indices are most
Determination of Submaximal and Maximal Training Zones From a 3-Stage, Variable-Duration, Perceptually Regulated Track Test
Claire A. Molinari, Florent Palacin, Luc Poinsard, and Véronique L. Billat
10.1139/H08-146 13. Midgley AW , McNaughton LR , Carroll S . Verification phase as a useful tool in the determination of the maximal oxygen uptake of distance runners . Appl Physiol Nutr Metab . 2006 ; 31 ( 5 ): 541 – 548 . PubMed ID: 17111008 doi: 10.1139/h06-023 10.1139/h06-023 17111008
Are Unilateral Devices Valid for Power Output Determination in Cycling? Insights From the Favero Assioma Power Meter
Pedro L. Valenzuela, Almudena Montalvo-Perez, Lidia B. Alejo, Mario Castellanos, Jaime Gil-Cabrera, Eduardo Talavera, Alejandro Lucia, and David Barranco-Gil
knowledge, no evidence exists on whether unilateral pedal power meters provide valid estimates of actual PO. We aimed to analyze the validity of a unilateral pedal power meter for determination of actual bilateral PO during cycling at different PO levels and cadences, using for this purpose the validated
Rating of Perceived Exertion During Concentric and Eccentric Cycling: Are We Measuring Effort or Exertion?
Luis Peñailillo, Karen Mackay, and Chris R. Abbiss
(16°C–18°C and 40%–50% relative humidity). During the first visit, participants performed an incremental cycling protocol for the determination of MAP and VO 2peak (described below). During this visit, participants were also provided with an explanation of and familiarized with the scales used in the
Selective Changes in the Mechanical Capacities of Lower-Body Muscles After Cycle-Ergometer Sprint Training Against Heavy and Light Resistances
Amador García-Ramos, Alejandro Torrejón, Alejandro Pérez-Castilla, Antonio J. Morales-Artacho, and Slobodan Jaric
outcomes provided by independent loading conditions. A more promising solution to address the discussed problem could be linear modeling of the force–velocity (F–V) relationship, which enables determination of the distinctive capacities of the muscles to produce F 0 , V 0 , their ratio (the relationship
The Effects of Maximally Achievable Cycling Cadence on Carbohydrate Management at Moderate and Heavy Exercise Intensity
Ralph Beneke, Tobias G.J. Weber, and Renate M. Leithäuser
doi:10.1136/bjsm.35.3.192 10.1136/bjsm.35.3.192 11375880 16. Beneke R , von Duvillard SP . Determination of maximal lactate steady state response in selected sports events . Med Sci Sports Exerc . 1996 ; 28 : 241 – 246 . PubMed doi:10.1097/00005768-199602000-00013 10
Prediction of the Maximum Number of Repetitions and Repetitions in Reserve From Barbell Velocity
Amador García-Ramos, Alejandro Torrejón, Belén Feriche, Antonio J. Morales-Artacho, Alejandro Pérez-Castilla, Paulino Padial, and Guy Gregory Haff
a range of 0 (ie, no additional repetition can be performed) to 10 (ie, 10 extra repetitions could be performed). Statistical Analyses Data are presented as mean and SD, while the Pearson multivariate coefficients of determination ( r 2 ) are presented through their median values and ranges. One
