Can a Simple Trapezoidal Integration Approach Accurately Estimate the Supra-Critical Speed Distance Capacity of a Swimmer?
The 12 × 25-m swim test has become a key physiological monitoring and profiling tool within swimming networks to capture various performance insights (peak velocity, critical speed [CS], supra-CS distance capacity [ D ′], and anaerobic speed reserve) within one testing occasion. The D ′ output follo...
| Published in: | International Journal of Sports Physiology & Performance Vol. 21; no. 7; pp. 1 - 7 |
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| Main Authors: | , , , , , , |
| Format: | equations & formulas research tables/charts Journal Article |
| Published: |
Human Kinetics Publishers, Inc.
Jul2026
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=194702963&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 194702963 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: Jul2026 vid: 21 iid: 7 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 194702963 194702963 197165594 194702963 10.1123/ijspp.2025-0372 194702963 ppf: 1 ppct: 6 formats: tig: atl: Can a Simple Trapezoidal Integration Approach Accurately Estimate the Supra-Critical Speed Distance Capacity of a Swimmer? aug: au: Bulte, Karla R. Mitchell, Lachlan L. G. Siegel, Rodney Hunter, Adam Brooks, Edward R. Saunders, Philo U. Hoffmann, Samantha M. affil: Victorian Institute of Sport, Albert Park, VIC, Australia sug: subj: Swimming Exercise Test Athletic Performance Evaluation Health Services Accessibility Models, Statistical Coaches, Athletic Athletes Human Adolescence Young Adult Male Female Linear Regression Pearson's Correlation Coefficient Paired T-Tests Descriptive Statistics Aerobic Capacity Physical Performance Evaluation Athletic Training Programs Data Analysis Software Parametric Statistics Confidence Intervals Adolescent: 13-18 years Male Female ab: The 12 × 25-m swim test has become a key physiological monitoring and profiling tool within swimming networks to capture various performance insights (peak velocity, critical speed [CS], supra-CS distance capacity [ D ′], and anaerobic speed reserve) within one testing occasion. The D ′ output following the 12 × 25-m swim test is currently derived using software that requires specialised expertise, therefore inhibiting the accessibility of the test to pathways' level coaches and athletes. Objectives: The aim of the study was to determine if trapezoidal integration (TI) could simply and accurately replace the model fit method to estimate D ′ following the 12 × 25-m swim test and improve the accessibility of the test for a wider cohort of practitioners. Methods: Thirty-one national-level swimmers preparing for the Paris 2024 Olympic Trials consented for their 12 × 25-m data set to be retrieved. D ′ was calculated using both the model fit and TI approaches. Linear regression and pearson correlations examined the strength of the relationship and a paired t test and Bland–Altman plot determined the agreement between the 2 methodologies. Results: A very strong, positive relationship was found between the model fit and TI D ′ calculations (r =.999, R2 =.999, P <.001), with a very small, nonsignificant difference of 0.040 m (d = 0.124, P =.495). Conclusions: TI is a valid replacement for the original model fit approach to estimate D ′ following the 12 × 25-m swim test. The swim test will no longer require specialised software and the accessibility of the test will increase to a wider cohort of swimming practitioners. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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