Voluntary contraction of these muscles helps with sensation and arousal during sexual intercourse (and) involuntary contractions of the muscles occur during orgasm, the Daily Telegraph quoted Royal Brisbane Women's Hospital physiotherapist Rowan Hill, as saying.
On the other hand, not exercising PFMs could lead to loss of sensation and arousal during sex and difficulty in achieving orgasm.
Just as with all other voluntary muscles in the body, if the PFMs are not exercised regularly they will get weak, Hill said.
If the muscles are not exercised regularly, women can lose control of basic bodily functions when doing everyday activities such as jumping, sneezing and lifting.
Prolonged suffering from the effects of weak pelvic floor muscles could even lead to depression.
Most women exercise their pelvic floor muscles soon after falling pregnant when fronting-up for their first antenatal class.
But Hill says the earlier females start, the better it is.
All who have had children should do regular pelvic floor muscle exercises, Hill said.
However, there is a school of thought that women should begin doing some PFM exercises earlier in their teenage years, Hill added.