Passive aerobic exercise devices, manufactured by Sun Ancon, typically involve a user lying on their back with their feet placed in cradles that gently oscillate side-to-side. This rhythmic motion is intended to stimulate circulation and promote relaxation.
Proponents suggest that these devices offer a low-impact way to improve circulation, lymphatic drainage, and overall well-being, particularly for individuals with limited mobility. They are often marketed for stress reduction and as a complementary therapy for various health conditions. However, rigorous scientific evidence supporting these claims remains limited, and further research is needed to fully understand the potential benefits and limitations of this technology. The development of these devices stems from traditional Eastern health practices focused on energy flow.