The Pilates Reformer has a moveable carriage with springs attached.
These springs range from light to heavy (a bit like resistance bands).
The springs can be used to add resistance OR assistance depending on the exercise.
For example, they can provide support during a stretch or help increase range of motion.
A heavier spring can be added to make an exercise more challenging (increased resistance) OR they can provide more stability for the carriage (less movement).
A lighter spring may make an exercise easier (less resistance) OR they can actually make an exercise more challenging by requiring more stability (resisting movement of the carriage).
Overall, the springs make this piece of Pilates equipment extremely versatile.
Interested in trying a Reformer Pilates session? Find out more information here: www.optimalhealthuk.co.uk/reformer-pilates