Winett noted that studies show that resistance training can be effectively initiated in well-supervised settings, "but there are very few theory-based studies showing effective maintenance of resistance training in typical, minimally supervised settings such as health clubs."

After development and pilot stages, Davy and Winett will conduct a large randomized trial to see how well theory based approaches can help people 50 to 69 years old who are at risk for diabetes maintain resistance training over the long-term in minimally supervised settings. "The primary outcome measures of efficacy will be indices of pre-diabetes (glucose tolerance and fasting glucose concentration) and strength," said Davy. Additional biological and psychological measures will be part of the study.

The first phase will be at the Virginia Tech Riverside Clinical Research Center, located on the Carilion Clinic campus in Roanoke, Va. "Riverside is a great set-up for one-on-one training during the initial phase of the project. "Our resistance training program is systematic, safe, and gradually progressive. It's also very time efficient taking only about 30-45 minutes twice per week. People will learn a great way to resistance train that they then will continue in other settings," said Winett.

Davy said there will be a series of exercises performed with 12 to 15 resistance training machines designed to use a different muscle group, all under the supervision of a trainer to insure proper form. "This will be the kind of program you can get involved in through a YMCA or health club," she said.

As many as 200 people will be part of the study over the five-year period.

Source: Virginia Tech