[jclos]

It depends on where you start. Exercise and training follow a very basic dose/response relationship where the higher you start, the more you need to progress. If you are a couch potato, 7 minutes a day will give you a lot of progress... until it doesn't. For example my starting point would be training four times a week and squatting 500lbs, so it probably wouldn't do much for me.

I wouldn't replace my current exercise routine with it because it wouldn't be enough to even match the 2018 physical activity guidelines for Americans [1]:

* 150 to 300 minutes per week of moderate-intensity aerobic physical activity, OR;

* 75 to 150 minutes per week of vigorous-intensity aerobic physical activity, AND;

* Resistance training of moderate or greater intensity involving all major muscle groups on 2 or more days per week.

[1]: https://health.gov/sites/default/files/2019-09/Physical_Acti...

[jenniferpattee]

I challenge you to try our ab workouts for 30 days ;) You would be surprised. We start with a basic fitness assessment to measure your upper body and core strength. Unless you are already starting out in the 90th percentile, you will most likely experience a 20% gain in ab strength after 30 days if you do the workouts every day. This is what the data is telling us after a year of tracking users and their results.

[jclos]

I'm sure it's very nice, but what I said is that I would do that in addition to my training instead of replacement! If my abs can stabilise my trunk for a 500lbs squat or a 600lbs deadlift, they're strong enough for me :)