While any workout is certainly better than none at all, results are more likely to be seen when an individual is working out more than once a week. Sounds like common sense, right? Well, you’d be surprised how many magazines and fitness sites. catering to the laziness in all of us, advertise once-a-week workouts as a means of becoming more fit—and that notion, in and of itself, is ludicrous to me,
Ideally, the average person needs to shoot for at least 150-minutes of moderate cardiovascular activity a week—that’s roughly 30-minutes per day—and if that isn’t possible, shoot for 75-minutes of higher intensity training 2 to 3 days a week; in the case of the latter, keep the sessions short (20 to 25 minutes in length) since you’ll likely be operating at 85 to 90 percent capacity.
Bottom line, there isn’t a lot of benefit to working out once a week (on a regular or even semi-regular basis), especially if you’re eating and drinking habits are not being modified. In order to exact any amount of physical change, you’re going to have to put in the work both in and out of the gym.