How do strides indicate whether the walker is a male or female?

Females usually have smaller foot prints and they usually step in a pigeon toed manner with a smaller stride. However males, usually walks with a straightforward foot or quite tilted outwards. This is how to differentiate strides of men from women. Stride is defined as to walk long though extending steps.  Women also walks gracefully they tend to walk femininely by swinging they hips and walking with short steps. In contrast, men's hip is quite stiffed when walking and takes longer steps when walking.

B. to increase the amount of antibiotics in the body