Is VO[subscript 2peak] a Valid Estimation of VO[subscript 2max] in Swimmers with Physical Impairments?

Autor/inn/en	Feitosa, Wellington G.; Barbosa, Tiago M.; Correia, Ricardo de A.; Castro, Flávio A. de S.
Titel	Is VO[subscript 2peak] a Valid Estimation of VO[subscript 2max] in Swimmers with Physical Impairments?
Quelle	In: Research Quarterly for Exercise and Sport, 91 (2020) 2, S.252-262 (11 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Feitosa, Wellington G.) ORCID (Barbosa, Tiago M.) ORCID (Correia, Ricardo de A.) ORCID (Castro, Flávio A. de S.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0270-1367
DOI	10.1080/02701367.2019.1660758
Schlagwörter	Aquatic Sports; Physical Disabilities; Exercise Physiology; Tests; Correlation; Measurement; Comparative Analysis; Competition; Measurement Equipment; Athletes + Suchen Sie Ihr Suchwort? Water sports; Water sport; Wassersport; Physical handicap; Körperbehinderung; Sportphysiologie; Examination; Prüfung; Examen; Korrelation; Messverfahren; Wettkampf; Messinstrument; Athlet
Abstract	Purpose: Peak and maximal oxygen uptake (VO[subscript 2peak] and VO[subscript 2max], respectively) are used in assessing aerobic power. For swimmers with physical impairments, it is unclear whether the physiological variables obtained in 200-m and Nx200-m tests are similar. The objective of this study is to assess the validity of VO[subscript 2peak] as an estimator of VO[subscript 2max] and complementary physiological variables, in particular, carbon dioxide production (VCO[subscript 2]), respiratory exchange ratio (RER), minute-ventilation (V[subscript E] and absolute (HR) and relative (%HRmax) heart rates--which were obtained in a time trial test (200-m) and an incremental intermittent test (Nx200-m) performed by swimmers with physical impairments. Methods: Eleven well-trained swimmers with physical impairments performed 200-m all-out and Nx200-m from low to all-out (controlled by a visual pacer), both with a respiratory valve system and a portable gas analyzer. Results: A paired Student's t-test showed no statistical difference (p > 0.05) for all comparisons. The intraclass correlation coefficient (ICC) was 0.97 and 0.98 for VO[subscript 2] in l/min and ml/kg/min, respectively; ICC = 0.75 to 0.9 for VCO[subscript 2] (l/min and ml/kg/min), V[subscript E] (in l/min) and HR (beats/min); ICC = 0.5 and 0.75 for %HRmax; and ICC < 0.5 for RER. Passing-Bablok regression showed that the dispersions were acceptable, considering the proportionality, except for HR and %HRmax. Bland-Altman method showed a high level of agreement for all variables. Conclusions: The VO[subscript 2peak] and VO[subscript 2max], as well as the physiological variables VCO[subscript 2] and HR obtained, respectively, by 200-m and Nx200-m tests in swimmers with physical impairment were not different. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01