Abstract: Apparatus suitable for pilates and other exercise comprises rails, supported on a box-like frame and an exercise carriage, mounted on the rails, wherein the carriage comprises a first carriage section and a second carriage section which sections can be (i) connected together to form a single exercise carriage which slides forwards and backwards on the rails, or (ii) disconnected to form two exercise carriages which independently slide forwards and backwards on the rails. The apparatus also has a seat with a spring-biased foot pedal and a spring-biased trapeze bar.