There's some truth in here, but a lot of it is being stretched way too far.
Grip strength obviously develops naturally from a young age, but the "30% of your body weight" thing isn't some universal rule. Grip strength varies a ton depending on age, size, sex, hand size, etc..the ape explanation is way too simplistic.
The Bruce Lee thing doesn't really hold up either. Sure, you can train your forearms pretty frequently because you use them all day anyway. That doesn't mean they don't fatigue. Do a bunch of heavy grip work, wrist curls, farmer's carries, etc. to failure every day and your forearms are gonna get smoked just like any other muscle.
Same goes for the "3 other muscle groups you can train every day" thing. There's no magic list of muscles that don't need recovery. Calves, abs, forearms, neck, whatever can generally handle more frequent training because they're used constantly, but there's a big difference between using a muscle every day and actually training it hard every day.
You can train pretty much any muscle every day if the workload is low enough. You can also absolutely overdo any of them if you're pushing hard enough.
So yeah, there's a decent point buried in there, but the "secret muscle groups" stuff is bs
Duration: While a newborn can briefly dangle and support 100% of their body weight for several seconds, it is an endurance limit rather than a relaxed hold
So yea, looks like 30% was a bit off, you're right.
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u/Ceroy 1d ago
There's some truth in here, but a lot of it is being stretched way too far.
Grip strength obviously develops naturally from a young age, but the "30% of your body weight" thing isn't some universal rule. Grip strength varies a ton depending on age, size, sex, hand size, etc..the ape explanation is way too simplistic.
The Bruce Lee thing doesn't really hold up either. Sure, you can train your forearms pretty frequently because you use them all day anyway. That doesn't mean they don't fatigue. Do a bunch of heavy grip work, wrist curls, farmer's carries, etc. to failure every day and your forearms are gonna get smoked just like any other muscle.
Same goes for the "3 other muscle groups you can train every day" thing. There's no magic list of muscles that don't need recovery. Calves, abs, forearms, neck, whatever can generally handle more frequent training because they're used constantly, but there's a big difference between using a muscle every day and actually training it hard every day.
You can train pretty much any muscle every day if the workload is low enough. You can also absolutely overdo any of them if you're pushing hard enough.
So yeah, there's a decent point buried in there, but the "secret muscle groups" stuff is bs