Lower back weakness in women is the result of two conditions. It occurs in young women of very late teens and very early twenties, and in post-natal young mothers.
The cause of lower back weakness in young women is the weight of the large breasts. The cause of lower back weakness in young post-natal mothers is the heavy fetus they had to carry for nine months.
In correcting the lower back weakness of well endowed young women with large and heavy breasts, specially designed bras are used to lift the large and heavy breasts so their center of gravity is “lifted” to enable the women to straighten their backs and thus reduce the stress from the hanging weight on the lower back.
In correcting the lower back weakness of pregnant women and post-natal young mothers, sometimes lower back braces are used, and sometimes lower back massage is helpful.