Hello,
I strongly agree with
@Philippe Geoffrion
The YouTube channel 'Red Delta Project' also advocates for something called 'micro workout'. This is something very close to GTG. The main difference is that you perform several exercises and a few sets at a time, here and there during the day.
I like the Max Shank's approach, which is very athleticism oriented, with fairly low volume, as mentioned. Below are a few protocols, as examples:
Strong. Fast. Agile. Crank up your awesomeness with this simple, challenging workout strategy.
www.t-nation.com
Bigger and stronger is great but it doesn't make you more athletic. Here's how to build that elusive quality.
www.t-nation.com
Here's how to use demanding 20-minute workouts to build a strong, powerful body... or die trying.
www.t-nation.com
Again, I think
@Philippe Geoffrion is right: this can clearly be paired with some high rep calisthenics.
In this article, even Danny Kavadlo advocates for some high rep training, including 2 or 3 sets to failure throughout the day - alongside other things of course - to build size and strength:
There are many methods of progressing your push and making incredible strength gains. This is just the tip of the iceberg. True strength is acquired over time, with patience, intensity, consistency and hard work.
www.dragondoor.com
To do it on a daily basis and on the long run, I would not go beyond two sets to failure though. If this works for push ups, it will work for pull ups.
Lower body is harder to really overload that way.
Usually, using different rep ranges in a training is the best way to progress.
@Philippe Geoffrion is the living proof of this. Pandemics, working from home, etc... are excellent way to get those reps in. For example, I currently do my morning routine as usual, but I also do a few things at midday and in the evening.
If we consider bodyweight training only and mixing rep range, even during a "normal" time, it could be easy to do at the end of the training a set of push ups and a set of pull ups [close to failure], and the same when one gets back home.
If one is lucky enough to have hill very close to home, or stairs, this is a given for the legs. I really enjoy stair climbing on good pace with heavy weight (at least 32kg). Plenty of options: backpack, suitecase, etc...
Kind regards,
Pet'