This is a video blog I made yesterday on my Arx Fit Omni. In it I discuss the superiority of motorized exercise machines over gravity based equipment, including
- body weight exercises
- selectorized equipment
My argument boils down to one fundamental point, with two distinct derivative points.
An intelligent alien being, with an intent to build an exercise machine for universal human use, with no external influences in the realm of exercise equipment, would not build an exercise machine that requires the user (~7 billion people) to adapt to the machine. That being would have to build an exercise machine that adapted instead, to the user.
Which is the exact opposite of most exercise equipment seen today.
Derivative point 1:
Gravity based equipment is incapable of perfectly adapting to bio-mechanical variables that change from person to person, however large or small.
Motorized exercise equipment, does.
Derivative point 2:
Gravity based equipment is almost universally incapable of adapting to a user’s increasing fatigue during live, intense use. Motorized exercise machines not only adapt to the user’s demands, they do so with 100% precision.
What about negatives?
Good question. This is something I did not discuss in the video.
The short version: with no external influences, why would an alien being build an exercise machine for universal human use, that does not track for a large increase in strength on the negative portion of every repetition?
Given the choice, it seems a little silly that you wouldn’t design a machine to provide the musculature with the resistance you ask of it, which is much higher on the negative of every rep.
So bottom line: same principles apply.
When does the set end?
From a Youtube viewer:
But if the machine is constantly adjusting the resistance to match your strength as you get tired, when does your set end ? You would never hit failure if the weight is continually being reduce. I don’t know cause I am new to this motorized stuff
Good point. I think the answer lies in the fact that you now have more control, and responsibility over, when the set ends.
In a 100% volitional activity like exercise — from conception to being sprawled out on the floor — more control and responsibility being in the hands of the individual user and/or trainer, is always a good thing, by my judgement.
Links from the video.