HOME >> BIOLOGY >> NEWS
Study: 'Pill' may cancel some bone-building benefits of exercise

WEST LAFAYETTE, Ind. Young women who take oral contraceptives and exercise may have increased risks of bone loss, according to recent research at Purdue University.

A two-year study headed by Connie Weaver, head and distinguished professor of foods and nutrition, suggests women ages 18 to 30 who exercise while using oral contraceptives may lose bone density in the hip and spine, even more than women who take the pill and are sedentary. This loss of density could make a women susceptible to bone fractures later in life.

However, the study also indicates that women in this group who get the minimum daily requirements for calcium may be able to ward off bone loss.

"The study showed that, overall, exercise had positive affects on whole body bone mineral content for everyone," Weaver says. "Only the spine and hip were compromised if subjects who were on oral contraceptives exercised, and only then if calcium intakes were inadequate."

The purpose of the study, funded through the National Institutes of Health, was to investigate the effects of exercise on bone mineral content and bone mineral density in women 18 to 30 years old who either were or were not taking birth control pills. The study started with 180 women. At the end of the two-year period, 55 women remained.

The study, published in the June issue of the scientific journal Medicine and Science in Sports and Exercise, had several unexpected results, Weaver says.

One big surprise was that for women who use birth control pills, exercise had a negative impact on the spine and the hip, especially in the first six months, she says. By the end of the two years, that group fell below the groups of non-exercisers or non-pill users in terms of bone mineral content and bone mineral density.

Bone mineral content and bone mineral density are both indicators of bone mass. It is widely held that women with higher bone mass early in adulthood are at a lower risk for developing osteoporos
'"/>

Contact: Susan Gaidos
sgaidos@purdue.edu
765-494-2081
Purdue University
20-Jun-2001


Page: 1 2 3 4

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study: A little help from friends makes wounds heal faster
3. Study: Mothers turn fearless when peptide level drops
4. Study: Artificial sweetener may disrupt bodys ability to count calories
5. Study: Mimicking viruses may provide new way to defeat them
6. Study: Stroke victims may retain continuous motion ability
7. Study: Adults maintain significant improvement in ADHD with long-term use of amphetamine
8. Study: Prenatal screening in Haiti region cut syphilis by 75 percent
9. Study: Isoflavone-enriched soy proteins fail to increase bone mineral density in young women
10. Study: Genome-wide scanning unravels complex birth defect
11. Study: Higher energy intake, obesity affects all age groups, not just youths

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/18/2016)... LONDON , March 18, 2016 ... Established Suppliers of Biometrics, ICT, Manned & Unmanned Vehicles, Physical ... & security companies in the border security market and ... and Europe has led ... your companies improved success. --> defence & ...
(Date:3/15/2016)... , March 15, 2016 Yissum ... , the technology-transfer company of the Hebrew University, announced ... of remote sensing technology of various human biological indicators. ... raising $2.0 million from private investors. ... based on the detection of electromagnetic emissions from sweat ...
(Date:3/11/2016)... , March 11, 2016 http://www.apimages.com ) - ... reference: Picture is available at AP Images ( http://www.apimages.com ) - ... will be used to produce the new refugee identity cards. DERMALOG ... innovations, at CeBIT in Hanover next week.   ... DERMALOG will be used to produce the new refugee identity cards. ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... ... April 29, 2016 , ... Intelligent Implant Systems announced today ... via 510(k) for sale in the United States. These components expand the capabilities ... With one-level sales beginning in October of 2015, the company has seen significant ...
(Date:4/28/2016)... ... 28, 2016 , ... Connecticut Innovations (CI), the ... announced the launch of VentureClash , a $5 million global investment challenge ... looks to attract the best early-stage companies here in Connecticut, around the country ...
(Date:4/27/2016)... ... ... Cambridge Semantics, the leading provider of Smart Data analytic and ... named to The Silicon Review’s “20 Fastest Growing Big Data Companies of 2016.” ... needs of end users facing some of the most complex data challenges in the ...
(Date:4/27/2016)... 2016 NanoStruck Technologies Inc. ... ( Frankfurt : 8NSK) gibt bekannt, ... 13. August 2015 die Genehmigung von der CNSX ... 200.000.000 Einheiten auf 400.000.000 Einheiten zu erhöhen, um ... wurden 157.900.000 Einheiten mit dem ersten Teil der ...
Breaking Biology Technology:
Cached News: