Also, I read the study, and it doesn't actually conclude that physically weaker men are more likely to be socialists. They measured, by questionnaire, how much people approve of certain social groups holding dominance over others, and their affinity for large-scale economic redistribution. After controlling for time spent in the gym, they found a significant correlation between 'body formidability' and support for social group dominance, but found no correlation between body strength and affinity for economic redistribution, which is what we would actually describe as 'socialism'.
But completely ignore the methodology and look at who was actually being measured here. The study looked at 171 college-age males and found that the stronger ones had more conservative values. You know what that tells you? It tells you that gym-rat frat boys are less friendly to socialism. Does that surprise you at all?
Repeat said study with new measurement variables and you'll probably find that support for socialism is correlated with higher GPA, better liver function, and a decreased chance of taking a spontaneous diarrhea dump behind the Zeta house at 2AM.
Poll