Kayoko Okamoto

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Electromyographic (EMG) recordings of the lower limbs were made from a girl from 3 weeks after birth until 7 years of age to determine EMG changes in the development of human bipedal locomotion. Recordings were taken from the tibialis anterior (TA), lateral gastrocnemius (LG), vastus medialis (VM), rectus femoris (RF), biceps femoris (BF), and gluteus(More)
To develop an index of gait instability from electromyographic information, we made observations on infants from the time they first began to walk independently at about one year of age until around three years of age. From our findings we obtained the following criteria. (1) Very unstable gait: As seen in a child within the first month of learning to walk(More)
The purpose of this study was to see whether an electromyographic (EMG) index of gait instability is applicable to the developmental process of supported walking in normal neonates and infants. In six neonates ranging in age from 14 to 26 days after birth, EMGs of stepping were recorded at approximately from one to four week intervals until around four(More)
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