Anonymous wrote:Insanity. First month DVDs are around 40 minutes, second month 60. To get honest and real results you need a workout longer than 30 minutes IMO
30 minutes is better than 60 if you can consistently keep doing the workouts. If someone is short on time, it's good to start with something they can reasonably incorporate into the day and do consistently over a period of time. Then increase the time to 45 minutes, maintain it for a while.
The biggest cause of failure to maintain a workout routine is to do too much at first so that it is unsustainable. The most successful workouts are the one a person actually will continue to do.
Also, I think if you are doing intervals (with light weights and cardio segments), 30 minutes can give you a good workout.