EFFECT OF TRAINING ON REPEATABILITY OF CARDIOPULMONARY EXERCISE PERFORMANCE IN NORMAL MEN AND WOMEN

Citation
R. Bingisser et al., EFFECT OF TRAINING ON REPEATABILITY OF CARDIOPULMONARY EXERCISE PERFORMANCE IN NORMAL MEN AND WOMEN, Medicine and science in sports and exercise, 29(11), 1997, pp. 1499-1504
Citations number
18
Categorie Soggetti
Sport Sciences
ISSN journal
01959131
Volume
29
Issue
11
Year of publication
1997
Pages
1499 - 1504
Database
ISI
SICI code
0195-9131(1997)29:11<1499:EOTORO>2.0.ZU;2-#
Abstract
The effect of gender and training on repeatability of cardiopulmonary exercise performance has nor been well defined. Therefore, we performe d two bicycle exercise tests 1 wk apart in each of two groups: In 19 n ormal subjects (age 24 to 64 yr, 10 females), with a mean maximal oxyg en uptake ((V) over dot O-2max) of 42 mL.kg(-1).min(-1), who had been in an ongoing training program including bicycle exercise, and in 19 u ntrained volunteers (23 to 54 yr, 11 females) with a mean (V) over dot O-2max of 36 mL.kg(-1).min(-1) (P < 0.05). Mean differences in physio logic variables measured during tests 1 and 2 were calculated. Repeata bility coefficients were defined as 2 SD in percent of the means. In u ntrained subjects mean (+/- SD) maximal heart rate decreased by 4 +/- 5 beats.min(-1) from the first to the second test (P < 0.05). (V) over dot O-2max and maximal work rate (Wmax) remained unchanged. No signif icant chan es in these or other variables occurred in trained subjects . Repeatability coefficients for (V) over dot O-2max were 8 and 13% in trained and untrained subjects, respectively (P = NS). For Wmax the r epeatability coefficient in untrained (11%) exceeded that in trained s ubjects (4%, P < 0.05). Repeatability coefficients did not differ amon g males and females. Our study provides normal values for repeatabilit y of various parameters assessed during exercise testing and demonstra tes that interpretation of performance during repeated tests has to ac count for training of the subjects.