Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc
Journal website http://www.jocmr.org

Original Article

Volume 11, Number 8, August 2019, pages 550-555

Effects of Repetitive Altitude Training on Salivary Immunoglobulin A Secretion in Collegiate Swimmers

Figures

Figure 1.
Figure 1. Cumulative training loads of the first and third training camps (all participants in each group got the same training load (m) at the certain day after ascent).
Figure 2.
Figure 2. Changes in the salivary secretion rate (SSR). A significant difference between the repetitive training (RT) and control (Con) groups was observed. After ascent, the SSR was significantly lower from day 4 to day 16, except for day 12 compared to day 0. *P < 0.05 vs. 0 time point; #P < 0.05 between RT and Con. FT: first altitude training.
Figure 3.
Figure 3. Changes in salivary secretory immunoglobulin A concentrations (SIgA-C). The SIgA-C of the repetitive training (RT) group was significantly higher than those of the first altitude training (FT) and control (Con) groups. The SIgA-C values at day 2 and day 4 were significantly lower compared with that at day 0. *P < 0.05 vs. 0 time point; #P < 0.05 between RT and Con; $P < 0.05 between RT and FT.
Figure 4.
Figure 4. Changes in SIgA secretion velocity (SIgA-V). Statistically, there were no interactions between the dates and the groups with respect to SIgA-V. #P < 0.05 between repetitive training (RT) and control (Con); $P < 0.05 between RT and first altitude training (FT).

Table

Table 1. Characteristics of the Study Groups
 
FT (n = 9)RT (n = 9)Con (n = 5)
Values were expressed as mean ± SD. *P < 0.05 between FT and Con. **P < 0.05 between RT and Con. SD: standard deviation; FT: first altitude training; RT: repetitive training; Con: control.
Age (years)19.6 ± 1.220.3 ± 1.124.6 ± 3.6*,**
Height (m)1.69 ± 0.051.73 ± 0.091.69 ± 0.06
Weight (kg)64.1 ± 4.164.9 ± 9.467.6 ± 11.0