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End-exercise phosphorylated compounds and intracellular pH
| Old | Young | |||
|---|---|---|---|---|
| Normoxia | Hyperoxia | Normoxia | Hyperoxia | |
| PCr (mM) | 19 ± 4 | 19 ± 4 | 24 ± 5 | 25 ± 5 |
| Pi (mM) | 16 ± 4 | 15 ± 3 | 12 ± 3 | 12 ± 3 |
| ADP (mM) | 67 ± 14* | 79 ± 27 | 44 ± 18 | 38 ± 15 |
| pH | 7.04 ± 0.10 | 7.08 ± 0.08 | 7.05 ± 0.04 | 7.05 ± 0.03 |
All values are expressed as mean ± SD
*P < 0.05 (statistically significant difference from young)
