Tai-Chi for Residential Patients with Schizophrenia on Movement Coordination, Negative Symptoms, and Functioning: A Pilot Randomized Controlled Trial Chinese terms used in the text are defined, the benefits of Tai-chi Chuan are discussed, and background information concerning the history of Chinese martial arts and Tai-chi Chuan is… The exercises and basic movements of Tai-chi Chuan, one form of the Chinese martial arts, are described and illustrated (through photographs) in this teaching guide. PMID:12893721ĮRIC Educational Resources Information Center Conclusion: The eccentric muscle contraction of the lower limbs in the push movement of tai chi may help to strengthen the muscles. The master maintained an upright posture and maintained a low CG (hips, knees, and ankles bent) while travelling slowly and steadily from one position to another. The path of the CG in the anteroposterior and mediolateral component was unique, and the sway or deviation from the path was small. The forward and backward shifts in centre of gravity (CG) were mainly accomplished by increasing and decreasing respectively the joint angles of the bilateral lower limbs rather than by adopting a forward or backward postural lean. Both concentric and eccentric contractions occurred in muscles of the lower limbs, with eccentric contraction occurring mainly in the anti-gravity muscles such as the rectus femoris and the medial head of gastrocnemius. Results: The medial hamstrings and medial head of gastrocnemius muscle groups maintained low activity, with higher electromyographic values in the lumbar erector spinae and substantially higher ones in the rectus femoris during the push movement. Electromyographic activities of the lumbar erector spinae, rectus femoris, medial hamstrings, and medial head of gastrocnemius were recorded by surface electrodes. The movements were videotaped and digitised using a motion analysis system. Methods: An experienced tai chi master was asked to perform a sequence of basic movements: ward off, roll back, press, and push. Objective: To analyse the kinematics and electromyographic characteristics of tai chi. No studies on the kinematic features of tai chi exercise have been published. The force used in tai chi includes different principles of mechanical advantage. Kinematic and electromyographic analysis of the push movement in tai chiīackground: Tai chi is a form of exercise derived from the martial art folk traditions of China.
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