Navigation Links
Tufts' Nelson a leader on Physical Activity Guidelines advisory committee

Tufts University's Miriam E. Nelson, PhD, served as vice-chair of the advisory committee for the new Physical Activity Guidelines for Americans written by the U.S. Department of Health and Human Services (HHS). Nelson is Director of the John Hancock Center for Physical Activity and Nutrition and Associate Professor of Nutrition at the Friedman School of Nutrition Science and Policy at Tufts.

"After reviewing a body of scientific research, we saw evidence that physical activity contributed to overall health and reduced the risk for most chronic conditions including heart disease, type 2 diabetes and some cancers," Nelson said. "In addition, the evidence showed that the health benefits of physical activity are seen at any given body weight. In our final report to HHS, the advisory committee also identified a need for specificity and suggested individualized guidelines for population subgroups including adults, older adults and children."

The advisory committee's recommendations are reflected in the Physical Activity Guidelines for Americans issued this month. The guidelines say:

  • Healthy adults, aged 18-64, should do 2 hours and 30 minutes per week of moderate-intensity physical activity like brisk walking and water aerobics or 1 hour and 15 minutes per week of vigorous intensity physical activity such as jogging and swimming laps or a combination of the two. Adults should include muscle strengthening activities in their work-outs 2 days per week.

  • Older adults, aged 65 and older, should follow an activity plan based on their abilities and if they are at risk for falling should include a balance training program.

  • Children, aged 6-17, should aim for one hour or more of physical activity per day, incorporating vigorous exercise at least three days per week. The guidelines call for muscle strengthening and bone strengthening exercises at least three days per week. The advisory committee cited "strong evidence" showing physically active children have less body fat and are at lower risk for cardiovascular and metabolic diseases. Activities for children should be developmentally appropriate.

  • Adults and children with disabilities should be as physically active as possible.

  • Healthy pregnant and postpartum women should do moderate-intensity physical at least 2 hours and 30 minutes per week. Women who engaged in vigorous-intensity physical activity prior to pregnancy can continue with the permission of their health care providers.

Nelson stresses that, while aerobic exercise is the most important part of the equation, "it's also important for adults and children to supplement their workouts with strength exercises. Activities like push-ups and sit-ups build muscle and bone strength. In older adults, strength training can help improve functionality and reduce the risk of falls," Nelson said.

It remains unclear whether there is a minimum dose of exercise that will yield health benefits. "There is mounting scientific evidence that one hour per week of moderate intensity physical activity is associated with improved health and reduced risk for heart disease," Nelson said. "While not ideal, even limited physical activity appears to be better than none at all."


Contact: Andrea Grossman
Tufts University, Health Sciences

Related medicine news :

1. Nutrition Agenda 2008 is focus of Tufts Friedman School Symposium
2. Tufts researchers discover link between DNA palindromes and disease
3. Tufts researcher leads revision of osteoporosis guidelines
4. John Mackey, Chairman and CEO of Whole Foods Market(R), and Ellen M. Zane, President and CEO, Tufts Medical Center and the Floating Hospital for Children, Offer Advice to Bentley Students at May 17 Commencement
5. Visage Imaging to Provide Fully Integrated Thin Client-Based Solution to Tufts Medical Center
6. ACM Partners With Tufts Associated Health Plans to Improve the Cost-effective Delivery of Home Infusion Services
7. Echo Therapeutics Announces Positive Results from Symphony(TM) Transdermal Continuous Glucose Monitoring System Study at Tufts Medical Center
8. Tufts University Review Finds Cranberries Support a Healthy Heart
9. Tufts researchers update their food guide pyramid for older adults
10. Success of Shape-Up Somerville Childhood Obesity Intervention to be Presented at the Friedman School Symposium at Tufts, October 29-31, 2007 - Boston
11. AR Nelson Launches New Optimized Website
Post Your Comments:
(Date:6/25/2016)... ... 25, 2016 , ... First Choice Emergency Room , the largest network ... the Medical Director of its new Mesquite-Samuell Farm facility. , “We are pleased ... location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. ...
(Date:6/25/2016)... ... 25, 2016 , ... Dr. Calvin Johnson has dedicated his ... implemented orthobiologic procedures as a method for treating his patients. The procedure is ... to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to help ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits ... terms of the latter, setting the bar too high can result in disappointment, perhaps ... slow progress toward their goal. , Research from reveals that ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set of ... or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, Serenity ... event. , Trauma sufferers tend to feel a range of emotions, from depression, guilt, ...
(Date:6/24/2016)... ... ... a crisis. Her son James, eight, was out of control. Prone to extreme mood shifts ... upset him, he couldn’t control his emotions,” remembers Marcy. “If there was a knife ... and say he was going to kill them. If we were driving on the ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 2016 Dehaier Medical Systems Ltd. (NASDAQ: ... markets and sells medical devices and wearable sleep respiratory ... strategic cooperation agreement with Hongyuan Supply Chain Management Co., ... June 20, 2016, to develop Dehaier,s new Internet medical ... Dehaier will leverage Hongyuan Supply Chain,s sales platform to ...
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
(Date:6/24/2016)... 2016   Pulmatrix, Inc ., (NASDAQ: ... drugs, announced today that it was added to the ... its comprehensive set of U.S. and global equity indexes ... important milestone for Pulmatrix," said Chief Executive Officer ... our progress in developing drugs for crucial unmet medical ...
Breaking Medicine Technology: