the Marines call it boot camp. its 12 weeks long
At least 8 weeks to 12 weeks
10 to 12 weeks
At least 8 weeks. 9-12 weeks is advised
6-12 weeks
8-12 weeks!
12 weeks
12 to 14 weeks
10 to 12 weeks
6 to 8 weeks
You would probably see results from cardiovascular exercise in 8-12 weeks.
8 to 12 weeks.