Metabolic Cost of Activity in Young and Older Women

The Muscular Physiology Lab is investigating what causes older women to require more energy than younger women who perform the same activity.  Requiring more every for activities causes older adults to fatigue more easily, which limits what they can do.

Prospective Participants must meet the following criteria:

  • Age 20-40 or 70-85 years old
  • Female
  • Relatively sedentary
  • Non-smoker
  • No neurological, cardiovascular or pulmonary disease
  • No metal implants, pacemakers, or anything that would prevent you from undergoing a MRI


This study will involve 3 visits, lasting a total of 7-9 hours. The visits will be scheduled around your availability. We will ask eligible volunteers to perform contractions of their leg muscles, as well as simple tests of physical function (for example: walking, balance, getting up from a chair, etc.). Volunteers will be asked to do muscle contractions while in a large magnet. The visit using the magnet will occur at Yale University School of Medicine, and transportation will be provided. Volunteers will receive information about their muscular ability, mobility function and physical activity level, along with a t-shirt or publications about exercises for healthy aging.

If interested or for more information, contact us at 413-545-5305 or by email at