Should I do cardio first as a warm-up or after my strength training?

For most people time is a major concern when creating a workout program. Because of this, many will combine both cardiovascular and weight training in the same session. Generally, putting the cardiovascular first or weight training first will not make a difference. The goal is to get both in. There are some general rules that you can follow to help you decide which should come first for you. The first thing you should know is that it can change every day. This means you should determine which comes first by what you wish to concentrate on that day. If you are planning a harder cardiovascular session that day because you are working on increasing your metabolism for weight loss or trying to build up cardiovascular strength, put the cardiovascular session first and plan on doing light weight training after that. If you are concentrating on building more strength, you might want to do your heavy weight training first and follow it up with a lighter cardiovascular session. If you do the weight training first,  be sure to do a warm-up of some kind first to prepare your muscles for the strength training. The order of your training can change constantly. One day concentrate on your cardio by putting it first and the next day concentrate on your weight training. Another suggestion would be to do some circuit training every few months for a few weeks at a time. This would have you mixing the cardio and weight training in the same session, alternating between the two.