I'm not sure how to nail an answer on this, succinctly.
I will tell you in my second 'learn to run clinic' I purposely made sure I had mostly female volunteers, to help with the different paces. Not that I am heavy handed or unprofessional about things, but I think the message can change it's value when delivered by a male. I don't think there was even a sensitivity issue - I got along very well with 99.9%
I also know talking about competition with experienced coaches, it was always a surprising trait that many women, not all, but many women are less likely to take the boots to another in a workout and sometimes a race. Where with males, they will do it on the track, in conversation, even drinking a wobbly pop etc.
There is also an assumptive attitude, which envelopes a relationship between opposite sex. Not a negative thing - just reality.
In some ways, I feel motivating women (personally) I have to stop and consider what I am about to say more so than with males.
Now saying this, I have never coached high level nor am I qualified to coach high level adults. It's all 'learn to run' clinic coordination or coaching younger teens and children....