Right, the article has me all agitated. This woman is biomechanical scientist, in UK they ergonomists, right?
Biomechanics is looking at the mechanics of the body - how posture at a desk can cause injury, what risk there is to kids carrying massive rucksacks of school kit, what stresses there are on joints in different movements etc.
I don't want to disrespect anyone's work, and, what she says from the mechanics point of view is essentially sound - but, there is a basic lack of understanding about anatomy and bladder control in the article.
I'd disagree with her when she says that the action of the pf is to draw the sacrum in - it's to hold your guts up. It's there to stop your liver from falling out your fanny. THat's why we go on and on about thinking about lifting when contracting your pf, that's replicating the function of the muscle.
She recommends glut work as an adjunct to pfexs. Well, I don't like that much - you can have gluts of steel, and be doubly incontinent. Do as many squats as you like - but, there's nothing to link your bladder control with your butt. That's like saying to solve your bingo wings by doing bicep curls - you'll have an effect, but not really address your problem.
The thing that bothers me about people following her advice and not, ehm, mine is that she presumes that there is an optimal posture for effective exercising the pelvic floor.
Well, I'd suggest that you need your pf to work effectively whether you are in a squat, balancing a book on your head, carrying your shopping and a toddler, bursting for a pee and got the cold or are elderly and have a stooped posture because of your osteoporosis. We don't all have D'Arcy Bussell's posture, but we do all need to be dry!
And, children do not wet beds because of pelvic floor weakness. That's just a nonsense.
PFexs are really important, but they are only part of the continence picture. A biomechanically focused person will have some really valuable insights - but seriously, don't start doing squats INSTEAD of the count of 10, 10 flicks and elevator.
So, in summary - do your blardy exercises, it's the only way.