Lactate response to short term exercise with elevated starting levels

Beneke, Ralph; Wittekind, Anna; Mühling, Monika; Bleif, Imogen; Leithäuser, Renate M.

doi:10.1007/s00421-010-1481-z

Cited by 12 publications

(5 citation statements)

References 12 publications

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“…The model approximates an extra‐vascular increase in lactate ( A L ) generated by exercise metabolism, and two constants describing the kinetics of appearance ( k 1 ) and disappearance ( k 2 ) of lactate in the blood compartment. In order to describe the effect of warm‐up inducing an elevated BLC pre on the BLC kinetics of the performance test, the model was adapted with the addition of a simple monoexponential term describing the disappearance of BLC pre from the blood (Beneke et al, 2010) (). …”

Section: Methodsmentioning

confidence: 99%

Metabolic and performance effects of warm‐up intensity on sprint cycling

Wittekind

Beneke

2010

Scandinavian Med Sci Sports

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Warm-up is generally considered beneficial for performance, although the reduction in anaerobic glycolytic metabolism may be detrimental to sprinting. This study examined the effect of warm-up intensity on metabolism and performance in sprint cycling. The mean power was determined during a 1-min sprint on 11 trained males preceded by easy (WE), moderate (WM) or hard (WH) warm-up and a 10-min recovery. Aerobic, anaerobic glycolytic and phosphocreatine energy provision to the sprint was determined from oxygen uptake and lactate production. Blood lactate concentration before the sprint increased with the warm-up intensity (WE: 1.2±0.3; WM: 2.0±0.3; WH: 4.2±0.9 mmol/L, P<0.001), with WH reducing the increase in lactate production during exercise vs WE (WE: 11.6±1.6; WM: 10.9±1.9; WH: 9.2±1.4 mmol/L, P<0.05). Despite the lower relative anaerobic glycolytic energy provision in WH vs WE (WH: 38±5; WM: 36±6; WE: 34±3%, P<0.05), the mean power was unaffected (WE: 516±28; WM: 521±26; WH: 526±34 W, P>0.05) due to increased oxygen uptake in WH during the sprint (WE: 3.2±0.4; WM: 3.3±0.3; WH: 3.4±0.4 liters, P<0.05). This study supports a warm-up-induced reduction in glycolytic rate, although sprint performance, at least of a long duration, may be maintained due to increased oxygen utilization.

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Section: Methodsmentioning

confidence: 99%

Metabolic and performance effects of warm‐up intensity on sprint cycling

Wittekind

Beneke

2010

Scandinavian Med Sci Sports

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“…Calibration was made using a solution of 5 mmol·L -1 (YSI 2327 Standard, Yellow Springs, Ohio, USA). The blood lactate kinetics for the performance tests was individually analysed by using the three-parameter biexponential model proposed by Beneke et al (2010). A three-parameter model was chosen over the traditional fourparameter model because it provided more realistic parameter estimations with respect to the elimination of lactate from the blood compartment at relatively short periods of blood sampling (Beneke et al 2007).…”

Section: Blood Lactate Kineticsmentioning

confidence: 99%

Effects of ischemic preconditioning on short-duration cycling performance

Cruz

Aguiar

Turnes

et al. 2016

Appl. Physiol. Nutr. Metab.

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It has been demonstrated that ischemic preconditioning (IPC) improves endurance performance. However, the potential benefits during anaerobic events and the mechanism(s) underlying these benefits remain unclear. Fifteen recreational cyclists were assessed to evaluate the effects of IPC of the upper thighs on anaerobic performance, skeletal muscle activation, and metabolic responses during a 60-s sprint performance. After an incremental test and a familiarization visit, subjects were randomly submitted in visits 3 and 4 to a performance protocol preceded by intermittent bilateral cuff inflation (4 × (5 min of blood flow restriction + 5 min reperfusion)) at either 220 mm Hg (IPC) or 20 mm Hg (control). To increase data reliability, each intervention was replicated, which was also in a random manner. In addition to the mean power output, the pulmonary oxygen uptake, blood lactate kinetics, and quadriceps electromyograms (EMGs) were analyzed during performance and throughout 45 min of passive recovery. After IPC, performance was improved by 2.1% compared with control (95% confidence intervals of 0.8% to 3.3%, P = 0.001), followed by increases in (i) the accumulated oxygen deficit, (ii) the amplitude of blood lactate kinetics, (iii) the total amount of oxygen consumed during recovery, and (iv) the overall EMG amplitude (P < 0.05). In addition, the ratio between EMG and power output was higher during the final third of performance after IPC (P < 0.05). These results suggest an increased skeletal muscle activation and a higher anaerobic contribution as the ultimate responses of IPC on short-term exercise performance.

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“…During the WAnT, capillary blood samples were collected at rest, immediately before the WAnT and then for 45 min of passive recovery (every min from 0 to 10 min, 2 min from 10 to 20 min, and 5 min from 25 to 45 min). The [La] kinetics was analyzed by using the 3-parameter biexponential model proposed earlier [5]. A 3-parameter model was chosen over the traditional 4-parameter model because it provided more realistic parameter estimations with respect to the elimination of lactate from the blood compartment at relatively short periods of blood sampling [3].…”

Section: Blood Lactate Kineticsmentioning

confidence: 99%

High-intensity Interval Training in the Boundaries of the Severe Domain: Effects on Sprint and Endurance Performance

et al. 2016

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In order to compare the effects of two 4-week interval training programs performed at the lower (Critical Power, CP) or at the higher (The highest intensity at which V˙Omax is attained, I) intensities of the severe exercise domain on sprint and endurance cycling performance, 21 recreationally trained cyclists performed the Wingate Anaerobic Test (WAnT) and a 250-kJ time trial. Accumulated oxygen deficit (AOD), surface electromyography (RMS), and blood lactate kinetics were measured during the WAnT. Subjects were assigned to 105% CP or I groups. During the WAnT, significantly greater improvements in peak (Mean ±95%CI) (5.7±2.3% vs. 0.2±2.2%), mean power output (MPO) (3.7±2.0% vs. 0.5±1.8%), and RMS (17.8±7.4% vs. -15.7±7.9%) were observed in the I group (P<0.05). Higher and lower AOD, respectively, at the start and during the second half of the WAnT were observed after I training. The changes in RMS and MPO induced by the training were significantly correlated (r=0.584). The 2 interventions induced improvements in the 250-kJ time trial. In conclusion, although the improvements in endurance performance were similar, training at I led to higher gains in WAnT performance than training at 105%CP.

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Lactate response to short term exercise with elevated starting levels

Cited by 12 publications

References 12 publications

Metabolic and performance effects of warm‐up intensity on sprint cycling

Metabolic and performance effects of warm‐up intensity on sprint cycling

Effects of ischemic preconditioning on short-duration cycling performance

High-intensity Interval Training in the Boundaries of the Severe Domain: Effects on Sprint and Endurance Performance

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