Walking and Weight Loss Boost Mobility in Obese Seniors
Author: Wake Forest University
Published: 2011/01/24 - Updated: 2026/05/08
Publication Details: Peer-Reviewed, Findings
Category Topic: Weight Loss Exercises - Related Publications
Contents: Synopsis - Introduction - Main - Insights, Updates
Synopsis: This research from Wake Forest University, published in the Archives of Internal Medicine, followed 288 participants aged 60 to 79 over 18 months as part of the five-year Cooperative Lifestyle Intervention Program (CLIP). The findings show that pairing increased physical activity with weight loss produced the most meaningful gains in mobility for older obese adults with poor cardiovascular health, with average improvements of 5 percent on the 400-meter walk test and gains as high as 20 percent for those with the most limited mobility. The work is particularly useful for seniors, caregivers, and people living with mobility disabilities because it challenges the long-standing assumption that weight loss is unsafe in later life and demonstrates that community-based programs delivered through existing agencies can deliver real functional benefits. Co-investigators from Wake Forest University School of Medicine, North Carolina State University, and the University of Florida contributed to the work, lending added weight to its findings - Disabled World (DW).
- Topic Definition: Walking for Weight Loss in Obese Seniors
Walking for weight loss in obese seniors refers to the structured use of low-impact ambulatory exercise, typically progressing in duration and frequency, combined with moderate caloric reduction to produce sustained body weight loss in adults aged 60 and older who carry excess adiposity. Unlike higher-intensity training, walking is widely tolerated by people with joint pain, balance limitations, or cardiovascular disease, and it directly trains the same muscular and aerobic systems used in everyday tasks such as standing, climbing stairs, and traveling 400 meters without assistance. When paired with weight loss, walking targets the two factors most strongly linked to mobility disability in later life, helping preserve the functional independence that allows older adults to remain in their homes and communities.
Introduction
Weight Loss and Walking Essential for Obese Seniors
Walking more and losing weight can improve mobility as much as 20 percent in older, obese adults with poor cardiovascular health, according to a new Wake Forest University study. The results from the five-year study of 288 participants appear online Jan. 24 in the Archives of Internal Medicine.
Main Content
The combination of weight loss and physical activity is what works best. These findings run counter to the commonly held belief that it is unhealthy for older adults to lose weight.
"To improve mobility, physical activity has to be coupled with weight loss," said Jack Rejeski, Thurman D. Kitchin Professor of Health and Exercise Science. "This is one of the first large studies to show that weight loss improves the functional health of older people with cardiovascular disease."
The study addresses what to do to help seniors with poor mobility, but it also proves existing community agencies can be used effectively to get seniors the help they need.
"With 60 percent of adults over age 65 walking less than one mile per week and a rapidly growing population of older adults, the need for cost-effective community-based intervention programs to improve the mobility of seniors is critical," said Rejeski, principal investigator for the Cooperative Lifestyle Intervention Program (CLIP).
Key co-investigators included Dr. David C. Goff and Walter T. Ambrosius from Wake Forest University School of Medicine, Peter Brubaker, professor of health and exercise science at Wake Forest, Lucille Bearon and Jacquelyn McClelland from North Carolina State University, and Michael Perri from the University of Florida.
"Community-based preventative programs are extremely important," Rejeski said.
The researchers partnered with the North Carolina Cooperative Extension and trained health care professionals at centers in three counties (Davidson, Forsyth and Guilford) to lead the programs along with an intervention team from Wake Forest. The participants, ranging in age from 60 to 79, were tracked over an 18-month period. The study divided participants into three groups: a control group who received education on successful aging, a physical activity only group, and a physical activity and weight loss group.
The physical activity group did well, but the most dramatic effect was found in the participants who combined an increase in physical activity with weight loss. On average, they improved their mobility by 5 percent as measured by the time it took them to walk 400 meters. Those with the most limited mobility improved by as much as 20 percent. The 400-meter walk is a widely used measure of mobility disability in older adults because for those who cannot walk this distance the likelihood of losing their independence increases dramatically. Rejeski uses this analogy for the loss of mobility in seniors who often don't realize its seriousness.
"It is like being in a canoe paddling down a river and being completely unaware that a waterfall is only a short distance away. Once your canoe starts down the waterfall of disability, the consequences are severe."
The waterfall is the cascade of adverse outcomes including hospitalizations, worsening disability, institutionalization, and death that are more likely when seniors lose the basic ability to get around. Seniors with limited mobility require significantly more high-cost medical care.
"Clearly the ability to walk without assistance is a critical factor in an older person's capacity to function independently in the community," he said. "The next step is to develop a model that can be replicated at similar sites across the state and the country and we look forward to working with our colleagues from North Carolina to achieve this goal."
Rejeski is also one of the lead behavioral scientists on the national Lifestyle Interventions and Independence for Elders (LIFE) Study, a six-year project funded by the National Institutes of Health designed to determine the effects of physical activity and successful aging interventions on major mobility disability. He also serves on the intervention committee for the Look AHEAD Study, a 20-site trial funded by the National Institutes of Health that is evaluating the effects of weight loss on cardiovascular events in adults with Type 2 diabetes. He is associate director of the Translational Science Center on the Reynolda campus of Wake Forest University.
Insights, Analysis, and Developments
Editorial Note: What stands out about this work is its practical message - that the path to keeping seniors independent does not require expensive clinical settings or specialized equipment, but rather a coordinated push toward modest weight reduction alongside regular walking, delivered through the kind of cooperative extension offices and community health centers that already exist in most counties. For older adults who can still walk 400 meters, that distance is more than a number on a stopwatch; it is often the dividing line between living at home and losing independence. Readers should always consult their physician before starting any new exercise or weight loss regimen, particularly when cardiovascular disease or other chronic conditions are present - Disabled World (DW).Attribution/Source(s): This peer reviewed publication was selected for publishing by the editors of Disabled World (DW) due to its relevance to the disability community. Originally authored by Wake Forest University and published on 2011/01/24, this content may have been edited for style, clarity, or brevity.