Navigation Links
Exercise Won't Affect Breast Milk, Baby's Growth: Study
Date:6/23/2012

By Kathleen Doheny
HealthDay Reporter

FRIDAY, June 22 (HealthDay News) -- Breast-feeding mothers sometimes worry that exercise may affect their breast milk -- and ultimately their baby's growth. Now, researchers who re-evaluated the few published research studies that exist say it does not appear that mom's workout will affect her infant's growth.

Studies are sparse, according to Amanda Daley, a researcher at the University of Birmingham in the United Kingdom, who led the analysis. She and her colleagues searched databases and found only four studies scientific enough to re-evaluate.

The analysis is published in the July issue of Pediatrics.

While exercise appears to have no effect on growth, research is so sparse that Daley said she can't make her conclusion any stronger. "Rather, we are saying, based on the evidence we have, exercise does not appear to negatively influence gain in weight," she said.

"The evidence is suggestive, not conclusive," Daley said.

Complete data from the studies were reported on 160 women, including 71 in the intervention groups and 89 in the comparison groups.

The studies looked at exercise interventions lasting at least a week. The comparison groups were assigned either to do less exercise than the other group or to do no exercise.

The women were exclusively or mainly breast-feeding. Information on the babies' weight and, in one study, length, were recorded.

Mothers' exercise did not appear to affect infant weight gain, Daley's team found. In the one study that looked at infant length, no differences were found in the exercising or non-exercising mothers.

The concern about exercise stems from previous research that suggested that a mother's workout may drain the body of fluid and in turn reduce milk volume, or that lactic-acid concentrations after exercise might affect breast milk's taste. But experts say the lactic-acid effect on taste would probably occur only with very vigorous exercise, much more strenuous than most new mothers might do.

In the studies reviewed, the women in the exercising groups did moderate to hard-intensity exercise three to five days a week or light to moderate exercise most days.

Daley said she can't address concerns people might have over more vigorous activity. For example, she said, "I can't comment on the issue of marathons, as none of the studies includes this type of exercise."

But, Daley concluded: "Based on limited evidence, we found that breast-fed infants whose mothers exercised did not gain less weight than infants of sedentary mothers."

Daley said a new study is needed that includes information on the baby's body length, the frequency and duration of breast-feeding, fussiness, milk volume and milk composition.

Dr. Richard Schanler, chair of the American Academy of Pediatrics' section on breast-feeding, reviewed the analysis.

"I basically have no concerns about maternal exercise during lactation," he said. "The manuscript suggests more data are needed because there is a paucity of research data in this area."

He said there might be a transient buildup of lactic acid in the milk during strenuous exercise. "That might change the taste of the milk. A sweaty mother might have more salt in their skin so the baby would taste it and it would differ from usual feeding."

Meanwhile, La Leche League, an organization whose stated mission is to promote breast-feeding worldwide, has suggested that because women feel better when they exercise, it is good for both mothers and babies.

However, on their website, La Leche League advises that breast-feeding moms wait until the baby is at least 6 weeks old to resume exercising, start gradually and consume plenty of fluids. Brisk walking, mild aerobic exercise and water exercise may be an ideal way to start, they suggest, but don't overdo it. Getting a doctor's approval before beginning any exercise routine is also advised by many experts.

More information

To learn more about breast-feeding, visit the U.S. Department of Health and Human Services.

SOURCES: Amanda J. Daley, Ph.D., senior lecturer in health psychology; Richard Schanler, M.D., chair, section on breast-feeding, American Academy of Pediatrics, and associate chair of pediatrics and interim director of neonatal services, Steven and Alexandra Cohen Children's Medical Center of New York, New Hyde Park, N.Y., and North Shore Long Island Jewish Health System, Lake Success, N.Y.; University of Birmingham, England; La Leche League, online; July 2012, Pediatrics


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Exercise program improved health of lung transplant patients and cut cardiovascular risk
2. Business Travel Harmful to Health: Medical & Personal Fitness Experts Announce "Exercise is Solution to Many Travel Ailments"
3. Exercise Appears to Ease Nerve-Damage Pain in Rat Study
4. Exercise Controls Weight in White Girls Better Than in Black Girls: Study
5. How does exercise affect nerve pain?
6. Exercise and a healthy diet of fruits and vegetables extends life expectancy in women in their 70s
7. Cyber exercise partners help you go the distance
8. Vigorous Exercise Might Keep Psoriasis at Bay
9. Exercise May Boost Survival in Breast, Colon Cancer Patients
10. Exercise Can Help Fight Heart Failure
11. Exercise Plus Computer Time May Boost Seniors Brains
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Exercise Won't Affect Breast Milk, Baby's Growth: Study 
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are ... Code Talker Award, an essay contest in which patients and their families pay tribute ... presented at the 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute Beauty ... Barry M. Weintraub as a prominent plastic surgeon and the network’s newest partner. ... and the most handsome men, look naturally attractive. Plastic surgery should be invisible.” ...
(Date:6/24/2016)... ... June 24, 2016 , ... Strategic Capital Partners, LLC (SCP) ... obtaining investment capital for emerging technology companies. SCP has delivered investment events ... in more than a million dollars of capital investment for five companies. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Venture Construction Group (VCG) ... held on June 20th at the Woodmont Country Club at 1201 Rockville Pike, ... organization dedicated to helping service members that have been wounded in battle and their ...
(Date:6/24/2016)... Gilbert, Arizona (PRWEB) , ... June 24, 2016 ... ... Gilbert-based practice, is supporting the upcoming 2016 Miss Arizona pageant as its official ... primarily serves Scottsdale, Tempe, Mesa, and Chandler, Arizona. , Dr. Olson says ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that it ... (procalcitonin) assay as a dedicated testing solution for people ... Roche is the first IVD company in the U.S ... assessment and management. PCT is a sepsis-specific ... blood can aid clinicians in assessing the risk of ...
(Date:6/23/2016)... , June 23, 2016 Research and ... News Issue 52" report to their offering. ... influenza treatment creates a favourable commercial environment for MedImmune to ... patient base that will serve to drive considerable growth for ... would serve to cap sales considerably, but development is still ...
(Date:6/23/2016)... RIDGE, Ill. and INDIANAPOLIS ... of students receiving a Lilly Diabetes Tomorrow,s Leaders Scholarship ... The 2016 scholarship winners, announced today online at ... to let type 1 diabetes stand in the way ... Diabetes has supported the Foundation,s scholarship program since 2012, ...
Breaking Medicine Technology: