The Life Fitness 91X is a smooth running cardiovascular training machine designed for physical comfort and ease of use. Durable and ergonomic, this Life Fitness elliptical trainer provides a range of low-impact exercise routines to improve cardiovascular health and whole-body muscle tone. The adjustable foot position and narrow pedal width allow users to use this rear drive elliptical trainer in comfort and reduce physical stress, preventing muscle strains and injuries. Moving arms provide additional conditioning while the fixed handlebars can be used for support. The handgrips include built-in hand sensors for passive, hands-free heart rate monitoring. Powered entirely by the user, this rear drive elliptical trainer is environmentally friendly and requires no power cords to operate. With an 18-inch stride, Life Fitness 91X users can choose from six pre-programmed workouts in four languages. To make workouts more enjoyable, the Life Fitness elliptical trainer also has a rack for reading material and an accessory keeper for wallets, car keys and towels. Using the alphanumeric LED keypad, users can customize their Life Fitness 91X workouts, set the timer or change workouts mid-stream. With 25 programmable resistance levels and a maximum pedal speed of 14.3 mph, the 91X elliptical can support users up to 350 lbs.