# Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers with Physical Impairments?Res Q Exerc Sport 2019; :1-11RQ

Abstract

### Purpose:

Peak and maximal oxygen uptake ([Formula: see text] and [Formula: see text], 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 [Formula: see text] as an estimator of [Formula: see text] and complementary physiological variables, in particular, carbon dioxide production ([Formula: see text]), respiratory exchange ratio (RER), minute-ventilation ([Formula: see text] 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 > .05) for all comparisons. The intraclass correlation coefficient (ICC) was 0.97 and 0.98 for [Formula: see text] in l/min and ml/kg/min, respectively; ICC = 0.75 to 0.9 for [Formula: see text] (l/min and ml/kg/min),[Formula: see text] (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 [Formula: see text] and [Formula: see text], as well as the physiological variables [Formula: see text] and HR obtained, respectively, by 200-m and Nx200-m tests in swimmers with physical impairment were not different.### Links

### Pub Type(s)

Journal Article

### Language

eng

### PubMed ID

31718516

### Citation

Feitosa, Wellington G., et al. "Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers With Physical Impairments?"

*Research Quarterly for Exercise and Sport,*2019, pp. 1-11.Feitosa WG, Barbosa TM, Correia RA, et al. Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers with Physical Impairments?

*Res Q Exerc Sport*. 2019.Feitosa, W. G., Barbosa, T. M., Correia, R. A., & Castro, F. A. S. (2019). Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers with Physical Impairments?

*Research Quarterly for Exercise and Sport,*pp. 1-11. doi:10.1080/02701367.2019.1660758.Feitosa WG, et al. Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers With Physical Impairments.

*Res Q Exerc Sport.*2019 Nov 13;1-11. PubMed PMID: 31718516.* Article titles in AMA citation format should be in sentence-case

TY - JOUR
T1 - Is V̇O2peak a Valid Estimation of V̇O2max in Swimmers with Physical Impairments?
AU - Feitosa,Wellington G,
AU - Barbosa,Tiago M,
AU - Correia,Ricardo de A,
AU - Castro,Flávio A de S,
Y1 - 2019/11/13/
PY - 2019/11/14/entrez
PY - 2019/11/14/pubmed
PY - 2019/11/14/medline
KW - Paralympic swimming physiology
KW - Validation
KW - incremental protocol
KW - time trial test
SP - 1
EP - 11
JF - Research quarterly for exercise and sport
JO - Res Q Exerc Sport
N2 - Purpose: Peak and maximal oxygen uptake ([Formula: see text] and [Formula: see text], 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 [Formula: see text] as an estimator of [Formula: see text] and complementary physiological variables, in particular, carbon dioxide production ([Formula: see text]), respiratory exchange ratio (RER), minute-ventilation ([Formula: see text] 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 > .05) for all comparisons. The intraclass correlation coefficient (ICC) was 0.97 and 0.98 for [Formula: see text] in l/min and ml/kg/min, respectively; ICC = 0.75 to 0.9 for [Formula: see text] (l/min and ml/kg/min),[Formula: see text] (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 [Formula: see text] and [Formula: see text], as well as the physiological variables [Formula: see text] and HR obtained, respectively, by 200-m and Nx200-m tests in swimmers with physical impairment were not different.
SN - 2168-3824
UR - https://www.unboundmedicine.com/medline/citation/31718516/Is_V̇O2peak_a_Valid_Estimation_of_V̇O2max_in_Swimmers_with_Physical_Impairments
L2 - http://www.tandfonline.com/doi/full/10.1080/02701367.2019.1660758
DB - PRIME
DP - Unbound Medicine
ER -