相撲力士の体力科学的研究 : 新弟子の体格・体力に関する研究

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Sumo the Japanese traditional form of wrestling is a unique and very popular sport, and particularly among the professionals the ancient ceremonial rites are still in practice. The wrestlers are of gigantic stature and consist mostly of men of the pyknic type and are considered to possess great strength. Actually, the Shindeshi or novices are selected form boys under 18 years of age and having a body height of over 170 cm and weighing over 70 kg. The present paper deals with a study on the physique and physical fitness of 103 Shindeshi who entered the professional Sumo world in 1970 and 1971. The results of the investigation were as follows : 1) The average age and body measurements of the experimental subjects are shown in Table 1. The average body height and average body weight of 174.5 cm and 90.9 kg, respectively, of the Shindeshi when compared to those of the average 16 year old male, are remarkably great. Of particular interest are the girth measurements which showed remarkable development : chest, 103.4 cm, waist, 93.0 cm and hip, 105.0 cm. 2) As a result, Rohrer's index was found to 171.8 and the average of the total skinfold thickness (upper arm, back, abdomen) was 81.3 mm indicating a remarkably pyknic type. Consequently, it is only natural that high correlation values of 0.927 and 0.937, respectively, for the waist and outstretched upper arm are established. 3) Body density computed by Nagamine and Suzuki's equation was found to be 1.034 and body fat calculated by Keys and Brozek's equation was found to be 25.3%, both indicating values twice as high as those of the average male of comparable age, proving that the Shindeshi belong to the ultra-pyknic type. 4) Results of measurements of muscle strength and motor capacity are shown in Table 4 and in Fig. 1 these measurements are compared to the average male of comparable age.
1972-06-01

相撲力士の体力科学的研究 : 新弟子の体格・体力に関する研究

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