Weight Training

I swim 2-3 times a week, and go to the gym 1-2 times a week (as schedule permits). On gym days I also try to do 30 minutes of stationary bike. I am not at all a competitive swimmer, so I cannot comment on whether this creates an edge. But, for the purposes of getting exercise and buring off the calories, this seems to be a pretty good mix. The weight training has helped a great deal with shoulder and elbow aches, which I used to get more often when I started out at the pool. I am 42. I read in a physiology book that weight training and aerobic training should not be done one right after the other, or else the aerobic component will erase some of the training effect of the resistance exercise. How much of a time gap is needed to overcome this has not been established, apparently. Thirty minutes might be sufficient. I wonder if anybody knows more about this?

I swim 2-3 times a week, and go to the gym 1-2 times a week (as schedule permits). On gym days I also try to do 30 minutes of stationary bike. I am not at all a competitive swimmer, so I cannot comment on whether this creates an edge. But, for the purposes of getting exercise and buring off the calories, this seems to be a pretty good mix. The weight training has helped a great deal with shoulder and elbow aches, which I used to get more often when I started out at the pool. I am 42. I read in a physiology book that weight training and aerobic training should not be done one right after the other, or else the aerobic component will erase some of the training effect of the resistance exercise. How much of a time gap is needed to overcome this has not been established, apparently. Thirty minutes might be sufficient. I wonder if anybody knows more about this?