The HOS - E105 Hip lift mainly targets the gluteal muscle groups, especially the gluteus maximus. During the hip - lifting movement, the gluteus maximus contracts strongly and exerts force, which can effectively enhance gluteal muscle strength and shape a more shapely buttock. Meanwhile, the hamstrings on the back of the thighs also assist in exerting force, which helps to improve their strength and flexibility. In addition, in order to maintain body stability during the training process, the core muscle groups (including abdominal and lumbar muscles) will continuously participate in exerting force, thereby enhancing core stability.