Just keeping yourself vertical enough to walk requires constant dynamic tension (this can be easily tested by getting smashingly drunk).
That’s a bad test for the hypothesis. Getting drunk makes coordination harder with makes it hard to work. At the same time it doesn’t fully relax all muscles.
If you want to know how much muscle tension is required for a given muscle, the much better test would to go to a Alexander Technique teacher who trained to do that movement with minimal muscle tension and see how much muscle tension they exert.
That’s a bad test for the hypothesis. Getting drunk makes coordination harder with makes it hard to work. At the same time it doesn’t fully relax all muscles.
If you want to know how much muscle tension is required for a given muscle, the much better test would to go to a Alexander Technique teacher who trained to do that movement with minimal muscle tension and see how much muscle tension they exert.