ARDC Research Link Australia

ORCID Profile
Orcid icon. 0000-0002-5333-4624

Current Organisations
Universidade Federal de Minas Gerais , RP Sport Science

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Publications

Publication

Comparison of Incremental Intermittent and Time Trial Testing in Age-Group Swimmers

Publisher: Ovid Technologies (Wolters Kluwer Health)

Date: 03-2019

DOI: 10.1519/JSC.0000000000002087

Abstract: Zacca, R, Azevedo, R, Peterson Silveira, R, Vilas-Boas, JP, Pyne, DB, Castro, FAdS, and Fernandes, RJ. Comparison of incremental intermittent and time trial testing in age-group swimmers. J Strength Cond Res 33(3): 801–810, 2019—The aim of this study was to compare physiological and biomechanical characteristics between an incremental intermittent test and a time trial protocol in age-group swimmers. Eleven national level age-group swimmers (6 men and 5 women) performed a 7 × 200-m incremental intermittent protocol (until exhaustion 30-second rest) and a 400-m test (T 400 ) in front crawl on separate days. Cardiorespiratory variables were measured continuously using a telemetric portable gas analyzer. Swimming speed, stroke rate, stroke length, and stroke index were assessed by video analysis. Physiological (oxygen uptake, heart rate, and lactate concentrations) and biomechanical variables between seventh 200-m step (in which the minimal swimming speed that elicits maximal oxygen uptake—vV̇ o 2 max was identified) and T 400 (time trial/fixed distance) were compared with a paired student's t test, Pearson's product-moment correlation, Passing-Bablok regression, and Bland-Altman plot analyses. There were high level of agreement and high correlations ( r -values ∼0.90 p ≤ 0.05) for all physiological variables between the seventh 200-m step and T 400 . Similarly, there were high level of agreements and high correlations (r-values ∼0.90 p ≤ 0.05) for all biomechanical variables and only trivial bias in swimming speed (0.03 m·s −1 2%). Primary physiological and biomechanical responses between incremental intermittent and representative time trial protocols were similar, but best practice dictates protocols should not be used interchangeably to minimize errors in prescribing swimming training speeds. The T 400 is a valid, useful, and easier to administer test for aerobic power assessment in age-group swimmers.