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| Subjects | Exercise | Molecular change |
|---|---|---|
| Young (mean age 25 years) Old (mean age 60 years) 42 |
4 days per week, with VO2 max 65 % for 8 weeks | In vastus laterals, capillary density ↑ VEGF RNA expression↑ |
| Old group 39 | 50 min , VO2 max 50 % of cycle ergometer | VEGF↑ |
| Aged female (57-76 years) Young female (20-29 years) 43 |
8 week, 65% Vo2 max, 1 hour 4 days each week | Old group VEGF unchanged Young group VEGF ↑ |
