Bad to the bone

Posted by Liz on May 8, 2009 in bone health | 0 comments

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Are hot flashes and other vasomotor symptoms an indication of adverse bone health? According to data coming out of the Study of Women’s Health Across the Nation, they might possibly be. Notably, while studies have examined the association between vasomotor symptoms and bone mineral density (BMD) previously, they have not followed women as they undergo the menopausal transition and rather, focused on women after they completed menopause.

Here are some of the study’s highlights:

• 2,213 women, ages 42 to 52, were included in the five year study. all had a uterus, were not using hormones, and had not yet entered menopause (i.e. still had their periods)
• Menopause stage and degree of vasomotor symptoms were assessed each year by questionnaire
• Bone mineral density was measured at the study’s start and each year. Dimensions were taken at the spine, hip, and pelvis

Study findings, which were published this past March in Menopause, showed that bone mineral density was lower in women with vasomotor symptoms compered to those without. What’s more, these effects varied depending in the stage of menopause. For example, women in pre- and early perimenopause with vasomotor symptoms had lower bone density measures in their pelvic areas, while women in postmenopause with vasomotor symptoms had lower BMD in their spine and hips. Overall, bone mineral density was consistently lower in women who experienced frequent vasomotor symptoms versus those who did not. In these cases, lower bone density was more evident in the lumbar spine in early peri- and postmenopause, and in the pelvis among early pre-menopausal women.

Whew! What does it all mean?

According to researchers, the findings suggest that vasomotor symptoms in menopause are linked to bone density deficits, which vary depending on the severity of symptoms and menopausal stage. This may help women and their practitioners devise more targeted strategies to protect bone health at appropriate times, and potentially encourage regular screening to prevent osteoporosis, fractures and related problems. The National Osteoporosis Foundation’s Bone Tool Kit includes information on calcium, vitamin D and exercise. Yoga Journal also has some great advice regarding safe and helpful postures.

Hot flashes and night sweats may be bad for the bones. But there are many positive steps we can take to protect them. Afterall, we only have one set. There’s no time like the present to take better care!