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There may also be some self-selection when it comes to people who choose to be weightlifters or runners. Tongue strength differences may be a genetic correlatio
by ahi 8y ago
There may also be some self-selection when it comes to people who choose to be weightlifters or runners. Tongue strength differences may be a genetic correlation with particular body types rather than a result of training.
- mr_overalls 8y agoExactly what I was thinking. Did the study control for genetic effects? The study compared "weightlifters" and "runners" - people who have presumably already been pursuing the activity for some time, instead of of being randomly assigned to such an experimental condition. So we might expect that genetically stronger people (with stronger tongues) would gravitate toward weightlifting, with the same trend for self-identified "runners" and endurance.