Research At The American College Of Sports Medicine Annual Conference

Main Category: Sports Medicine / Fitness
Also Included In: Conferences
Article Date: 02 Jun 2008 - 4:00 PDT

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A unique study by Indiana University researchers found that physical activity throughout the day -- simply moving -- is related to positive feelings, but they found no similar relationship between physical activity and negative moods.

"In the study, if people are more active, they tend to report a more positive mood," said Bryan McCormick, associate professor in IU Bloomington's School of Health, Physical Education and Recreation. "Really low levels of activity are related to lower levels of positive affect."

For the study, included as a poster presentation at the American College of Sports Medicine's annual meeting in Indianapolis, physical activity was considered movement beyond resting -- not formal exercise.

"People often see physical activity as having to be exercise, but it doesn't have to be exercise," McCormick said. "Physical activity beyond a resting state does appear to be related to mood."

The study is unique because it tracks moment-by-moment physical activity throughout the day and compares it to reports study participants make throughout the day of their activities and feelings.

The 25 study participants wore uniaxial accelerometers during waking hours for seven days so their physical activity could be recorded. They also wore wristwatches with preprogrammed alarms that signaled them seven times per day during this period so they could fill out brief reports. If they responded more than 20 minutes after the alarm, their report was disregarded in order to eliminate the ambiguity of "recall." Most studies involving mood and physical activity rely on recall, and compare it to overall physical activity levels, not moment-by-moment activity.

"Most research distinguishes between positive and negative mood," McCormick said. "In our study, the moment-by-moment activity is related to positive mood -- but not related to negative mood state."

Physical activity and exercise is drawing more attention as a possible way to influence mild depression.

"In some ways, it might treat mild depression in that it increases our positive feelings, but it doesn't necessarily take away our negative feelings," McCormick said.

This study is part of a larger research project involving adults with serious mental illness. McCormick, an associate professor in the School of HPER's Department of Recreation, Park and Tourism Studies, is collaborating with Georgia Frey, associate professor in the School of HPER's Department of Kinesiology and lead author of this mood and physical activity study.

"The results of this study were modest and based on a relatively small sample," Frey said, "but the findings are encouraging." The study participants represented a general population, not a clinical population.

Frey will be available to discuss the study on Friday from 2 to 3:30 p.m. in Hall B. Information about the study is embargoed until this time. Coauthors include Chien-Tsung Lee and Yong-Kyeom Yoo, also from IU Bloomington.

COLLEGE FRESHMEN AND HEART DISEASE RISKS

An Indiana University study involving college freshmen found that almost half of the students had at least two risk factors for heart disease.

The study, led by Cameron L. Troxell, a graduate student in the IU Bloomington School of Health, Physical Education and Recreation, involved 101 male and female college freshmen who answered a questionnaire designed to help researchers gauge the students' perceptions of their own health compared to the actual measurements. The study found that 30 percent of the students had high cholesterol, compared to 4 percent who self-reported this risk factor.

Troxell will discuss her study Friday afternoon during a poster presentation at the American College of Sports Medicine's annual meeting in Indianapolis.

"A lot of the students were very surprised that they had high cholesterol," said co-author Jeanne Johnston, assistant professor in the School of HPER's Department of Kinesiology. "It really hit home that they need to start thinking about their healthy habits and behaviors." Johnston said the college-age population is an understudied age group but an important age group, because of the independence that occurs during this critical transition period and the potential for developing lifelong healthy habits.

Troxell will be available to discuss her study, titled "Self-reported v. actual health status of first-year college students," on Friday, from 2 to 3:30 p.m. in Hall B. Information about the study is embargoed until this time. Coauthors include Carol Kennedy-Armbruster, Amy Diullo, Whitney Hornsby and Kelly Pfaffenberger, all from IU Bloomington.

WEIGHT LOSS AND PATIENT CONTACT FREQUENCY

Past research has found that patients enrolled in weight-management programs experience greater success as the frequency they meet with physicians or weight-loss counselors about their progress increases. The U.S. Preventative Services Task Force, an organization that recommends guidelines for primary care in the U.S, classifies two provider contacts with patients as intensive. A study by NiCole Keith, associate professor in the Department of Physical Education at Indiana University-Purdue University in Indianapolis, found that this current recommendation may not be intensive enough for low-income and disadvantaged populations.

Keith's study, which will be presented at the American College of Sports Medicine's annual meeting in Indianapolis, was conducted in an urban community health center in Indianapolis that primarily serves low-income and disadvantaged populations.

The weight-management program, Take Charge Lite (TCL), was free to patients, funded by the Fairbanks Foundation and available to all patients 18 or older with a body mass index indicating they could be overweight or obese -- equal to or above 25. The program was developed for English or Spanish-speaking patients and used input from physicians, administrators and patients of the clinic. If patients qualified, their physician gave them information about TCL and the program coach's contact information. Once a patient phoned, a first visit was arranged at which the patient chose goals, weighed-in, and discussed different weight-loss strategies with the coach. Program participants could attend support groups, education or exercise classes, meet face-to-face with coaches, or have regular weigh-ins. Each of these activities qualified as a contact.

At the end of the program's first year, the relationship between weight loss and number of contacts was evaluated.

-- Patients with two or fewer contacts per month gained about a pound.

-- Patients with three or four contacts per month lost about two pounds of weight.

-- Patients who had five contacts per month lost just over two pounds.

-- Those with six or more contacts lost about five pounds.

-- Patients with more than 11 contacts per month lost about six pounds.

Keith said the program will continue and that she's optimistic about its impact.

"TCL coaches helped patients find strategies tailored to patient needs and abilities to help with weight loss," she said. "Identifying factors associated with weight loss and program participation may improve weight loss services, maximize contact and lead to increased weight loss in this population."

Keith will give a slide presentation of her study on Friday at 4:15 p.m. in Hall B. Information about the study is embargoed until this time. Coauthors are Daniel O. Clark, Indiana University, and Anthony Perkins, Regenstrief Institute.

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