It is possible to get a good workout in 4 minutes. You need to know what you want to concentrate on and do hard fast reps targeting the core area in order to be successful.
30 Minutes
Can you? yes, i mean it's physically possible but why would pre-workout be called "pre" workout if your taking it after your work out ? It would just be foolish to do that because the pre workout wouldn't do anything for you. you would just be getting energized after your already done working out there would be no point. take your pre workout supplement 10 minutes before you work out and take your post workout protein/supplement within thirty minutes after your workout. I recommend taking your post workout A.S.A.P. after your workout.
30 minutes
The jump rope workout gets so much praise as its so cheap and quick to do with such great results. You can do it in ten minutes in your own home and you can burn over 100 calories in just 10 minutes.
30 minutes
8 minutes workout but still rocks, wow
The sixty minutes that the workout takes from start to finish.
4 minutes and 3 seconds. (4:03)
You can see results in as little as 20 minutes per day using the Club Workout Step System.
To effectively incorporate 20 minutes on the treadmill into your daily workout routine, you can start by warming up for a few minutes, then set a challenging pace for your run or walk. Focus on maintaining good form and posture throughout the workout. You can also incorporate intervals of higher intensity to increase the intensity of your workout. Finally, cool down with a few minutes of walking or stretching to help your body recover.
Situps and holds are good. Do as many as you can in 2 minutes (for each), then a one minute break. Repeat 3-4 times.
Aim for 30 minutes to an hour per session. The duration depends on the type and intensity of your workout.