This document proposes creating a virtual fitness lab in Second Life to support physical education instruction and encourage physical activity. The lab would have 3 modules: 1) instruction on fitness testing, 2) practice simulations of tests, and 3) a community space where users can create avatars, complete pre/post-tests, and track fitness progress. The goal is to help students learn exercise concepts hands-on through virtual simulation without expensive equipment or endangering subjects, while also motivating real-world fitness. Challenges include planning, funding, maintenance, and community collaboration.