Table 2. State of glutathione system and activity of glucose-6-phosphate dehydrogenase
in skeletal muscle after acute and chronic exercise, and also after different
regimes of intermittent hypoxic training (n = 10). Data are means (±SEM).
 |
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| Groups |
GSH
|
GR
|
GPx
|
G6PDH
|
|||||||||||
|
|||||||||||||||
| Control | |||||||||||||||
| 1 2 |
1.20 (.08)
.79 (.03) |
6.43 (.31)
4.66 (.20) |
6.86
(.62)
4.16 (.27) |
1.98 (.09)
2.21 (.12) |
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| Acute exercise (30 min) | |||||||||||||||
| 1 2 |
.90 (.04) **
.54 (.05) * |
5.00 (.18) *
3.42 (.20) * |
5.04
(1.01)
3.27 (.38)* |
2.19 (.10)
3.88 (.20) ** |
|||||||||||
| Chronic exercise (4 wk) | |||||||||||||||
| 1 2 |
1.26 (.04)
.84 (.07) |
6.50 (.46)
5.93 (.24) ** |
8.17 (.87)*
5.45 (.15)* |
2.60 (.13) **
3.45 (.15) ** |
|||||||||||
| IHT (2 wk) | |||||||||||||||
| 1 2 |
1.58 (.10) *
1.16 (.09) ** |
8.36 (.78) *
6.85 (.46) ** |
10.82
(2.0)**
6.03 (.40) * |
2.32 (.10) *
3.11 (.12) ** |
|||||||||||
| Chronic exercise (4wk) + IHT during the first two weeks | |||||||||||||||
| 1 2 |
1.39 (.06) *#
.90 (.06) *# |
7.59
(.36) *#
6.05 (.30) # |
9.62
(.05) *#
7.00 (.62) *# |
2.16 (.09)
2.43 (.12) # |
|||||||||||
| Chronic exercise (4 wk) + IHT during the last two weeks | |||||||||||||||
| 1 2 |
1.46
(.09) *#
.98 (.04) *# |
7.88
(.41) *#
6.42 (.24) ** |
9.83
(1.06)*#
6.90 (.40) *# |
2.20 (.10)
2.35 (.10) # |
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|
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| Abbreviations: GSH= reduced glutathione (µmol·mg protein-1), GR= glutathione reductase (nmol NADPH·min-1·mg protein-1), GPx= glutathione peroxidase (µmol GSH·mg protein-1), G6PDH= glucose-6-phosphate dehydrogenase (nmol NADPH·min-1· mg protein-1), IHT= intermittent hypoxic training. 1) red gactrocnemius/soleus muscles, 2) white gasrtrocnemius muscle. * p < 0.05 compared with control, ** p < 0.01 compared with control; # p < 0.05 compared with chronic exercise. |