Physical Fitness and Optimal Quantity of Motion for Children in Their Life(3)-RPE for the Index of Quantity of Motion and Physical Activity Judgement and that Validity-

幼児の運動能力・運動強度判定の指標としてのRPEとその妥当性について検討した。5～6歳の活動的な上位群の幼児および活動的でない下位群の幼児を対象に，トレッドミル運動負荷テストを行った時のRPEを4段階にランクづけを行い（軽いものから①，②，③，④），RPEと心拍数および酸素摂取量との関係について分析し，一日の心拍数の連続測定を行い，RPEからみた幼児の運動量について検討した。さらに，試案的に作成した2種類の体育あそびプログラムを実施し，心拍数の連続測定とRPEの問診を行ったところ，RPEは酸素摂取量，心拍数とよく相関し，幼児の運動強度を推定する指標として妥当性を有し，利用し得ることが認められた。The study was performed to examine physical activity of infants by means of RPE(rating of perceived exertion).The relationship between RPE with 4 grade(①,②,③,④)and HR,VO_2 was examined by use of treadmill test in 13 active infants and 12 inactive infants of 5-6 years of age.In order to examine validity of RPE in the Kindergarten,the variation in HR and RPE during 2 lessons in physical education were measured.The following results were obtained;(1)HR max and VO_2max of active infants and inactive infants in the treadmill test were 196.4±8.9bpm,1013±81.7mlmin.and 193±12.4bpm,785±181.4mlmin,respectively.(2)Significant positive correlation were observed between the increase in RPE,and HR,%VO_2max in 22 subjects(p