Why Total Force Fitness?

Why Total Force Fitness ?

In this article we describe a new paradigm for “Total Force Fitness.” In an age of sustained confl ict, fi tness requires continuous performance, resilience, and recovery of the whole person, not just the physical body. Injury from these confl icts is physical and mental, social and spiritual. It impacts the service members, their families and communities, and the nation. It is now abundantly c...

Why is muscularity sexy? Tests of the fitness indicator hypothesis.

Evolutionary scientists propose that exaggerated secondary sexual characteristics are cues of genes that increase offspring viability or reproductive success. In six studies the hypothesis that muscularity is one such cue is tested. As predicted, women rate muscular men as sexier, more physically dominant and volatile, and less committed to their mates than nonmuscular men. Consistent with the ...

An experimental study of physical fitness of Air Force personnel.

Genetic variation for total fitness in Drosophila melanogaster.

We measured the heterozygous effects on net fitness of a sample of 12 wild-type third chromosomes in D. melanogaster. Effects on fitness were assessed by competing the wild-type chromosomes against balancer chromosomes, to prevent the production of recombinants. The measurements were carried out in the population cage environment in which the life history had been evolving, in an undisturbed po...

Maximum force production: why are crabs so strong?

Durophagous crabs successfully hunt hard-shelled prey by subjecting them to extremely strong biting forces using their claws. Here I show that, for a given body mass, six species of Cancer crabs (Cancer antennarius, Cancer branneri, Cancer gracilis, Cancer magister, Cancer oregonensis and Cancer productus) were able to exert mean maximum biting forces greater than the forces exerted in any othe...