the Alexander technique
noun [ S ] uk/æl.ɪɡˈzɑːn.də tekˌniːk/ us/æl.ɪɡˈzæn.dɚ tekˌniːk/
亚历山大健身术（一种运动身体或使身体保持某种姿势的方法，让肌肉和大脑尽量放松，目的包括缓解疼痛或提高运动能力）
a way of moving or holding your body so the muscles and mind are as relaxed as possible, and that is taught, for example, in order to reduce pain or improve performance in sport