How to build core (body) strength?

I'm slowly building up my speed and stamina as a runner -- I do roughly 15 miles of hilly outdoor running a week right now, and absolutely love it. I'd like to add in a full-body strength workout (+/- 30 min, 40 including stretching) three days a week...

Im just recovering from a hand operation and i want to build my strength up for the season after this one. I don't care about big show muscles i just want to know of any core exercises of which body-parts to work out for explosive strength in the tackle...

Ok, so I'm a lifeguard, and we had to do an inservice training session yesterday to prove we still have our skills/freshen them up, and basically I was paired with a lifeguard who wrestles and throws shotput, so he's ALL muscle and happens to be 6' tall...

I read a few times on some sites where it said no strength training for more than 40 minutes or else your body releases a certain hormone which could break down the muscle. I'm doing some strength training which is moderately intense with exercise bands...

I am a dragon boat paddler and while I love the sport, I've hit a plateau and I'd like to supplement it with another fitness activity. Also my dragon boat coach has said that I lack upper body strength. So I really really need to build up. The problem...

Hey I'm wondering how much your core strength improves your running economy, and also how much the upper body does. I know it's nothing that can be exact, but I would like to ...show more

Hey, I just started rock climbing and I want to build some upper body strength so that the activity will be a little easier for me. Which work outs and how much of them should I do ...show more

I've started rock climbing at my local climbing gym and I need to build up some upper body strength. (I only am interested in climbing at gyms, not on any trails). I know that the ...show more