Is it odd to use financial jargon when discussing the benefits of the Stamina® InStride® Folding Cycle? Maybe so. Then again, your commitment to fit, healthy living is serious business. And Stamina believes the energy and sweat you spend working out may just be the most valuable investment you can make. To maximize your ROI (return on investment), the InStride Folding Cycle is designed to strengthen your muscles while the aerobic exercise increases your metabolism to burn calories more efficiently.