Time to Exhaustion at Traditional Physiological Indicators in Runners: Between-Subject and Between-Day Variability.
Background: The maximum oxygen uptake ( V ˙ O 2 max), respiratory compensation point (RCP), and maximal lactate steady state (MLSS) are indicators used to assess athletes' performance. There is scarce information available on the tolerable duration of exercise (time to exhaustion [TTE]) while runnin...
| Publicado en: | International Journal of Sports Physiology & Performance Vol. 21; no. 4; pp. 590 - 597 |
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| Autores principales: | , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Apr2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=192559000&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 192559000 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15550265 16IB jtl: International Journal of Sports Physiology & Performance issn: 15550265 maglogo: N pubinfo: dt: Apr2026 vid: 21 iid: 4 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 192559000 192559000 192559000 10.1123/ijspp.2025-0511 192559000 ppf: 590 ppct: 7 formats: tig: atl: Time to Exhaustion at Traditional Physiological Indicators in Runners: Between-Subject and Between-Day Variability. aug: au: Pallarés, Jesus G. Valenzuela, Pedro L. Martínez-Cava, Alejandro Higuera-Liébana, Enrique Buendía-Romero, Ángel Cervantes, Alfonso Mora-Rodriguez, Ricardo affil: Human Performance and Sports Science Laboratory, University of Murcia, Murcia, Spain sug: subj: Running Fatigue Time Exercise Intensity Oxygen Consumption Evaluation Lactates Blood Physiological Processes Evaluation Athletes, Male Reliability and Validity Endurance Training Human Male Adolescence Adult Exercise Test, Cardiopulmonary Heart Rate Correlational Studies Intraclass Correlation Coefficient Aerobic Capacity Convenience Sample Athletic Performance Experimental Studies Repeated Measures Two-Way Analysis of Variance Post Hoc Analysis Descriptive Statistics Data Analysis Software Adolescent: 13-18 years Adult: 19-44 years Male ab: Background: The maximum oxygen uptake ( V ˙ O 2 max), respiratory compensation point (RCP), and maximal lactate steady state (MLSS) are indicators used to assess athletes' performance. There is scarce information available on the tolerable duration of exercise (time to exhaustion [TTE]) while running at these physiological indicators. We aimed to analyze the TTE when running at these indicators, as well as to determine their between-subject variability and within-subject reliability. Methods: Thirteen male athletes volunteered to participate ( V ˙ O 2 max = 60.2 [ 4.2 ] mL·kg−1·min−1). Participants V ˙ O 2 max , RCP, and MLSS were assessed through treadmill testing, and they performed 2 TTE tests on different occasions at the speed corresponding to each indicator, during which blood lactate, heart rate, and perceptual responses were measured. Results: TTEs were 03:38 (00:40), 10:58 (02:59), and 56:42 (13:02) mm:ss at the V ˙ O 2 max , RCP, and MLSS, respectively. A moderate between-subject variability was observed (coefficient of variation = 18.3%, 27.3%, and 23.0% for V ˙ O 2 max , RCP, and MLSS), but no significant associations were found between TTEs and other fitness indicators, such as the speed at which these intensities occurred, nor between TTEs and V ˙ O 2 max (all r <.1; P > 0.2). A high within-subject (ie, between-day) reliability was observed for the TTE at all indicators (coefficient of variation of 4.4%, 4.8%, and 6.4% for V ˙ O 2 max , RCP, and MLSS, respectively, and intraclass correlation coefficient of.94 and.97, and.90, respectively). Conclusions: Given their high within-subject reliability and their independence from other traditional physiological indicators of performance, TTE tests could be used for performance monitoring and for training prescription purposes. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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