著者
Toshiyuki TAKAHASHI Osamu AOKI Atsushi HIRAGA
出版者
Japanese Society of Equine Science
雑誌
Journal of Equine Science (ISSN:13403516)
巻号頁・発行日
vol.18, no.2, pp.47-53, 2007 (Released:2007-07-11)
参考文献数
9
被引用文献数
1 2

The purpose of this study was to describe the characteristics of fast race horses by analyzing the running form of Deep Impact, the undefeated Japanese triple crown winner in 2005. A high-speed video data of the Kikuka Syo race (Japanese St. Leger, JPN G1, 3,000 m, turf) was taken at a rate of 250 frames/sec. The high-speed video system was set in a left lateral position about 100 m before the finishing post with a field view width of about 16 m. The speed of Deep Impact, 17.8 m/sec, was the fastest of all horses measured (average 16.1 m/sec), the stride frequency, 2.36 strides/sec, was the third largest (average 2.28 strides/sec), and the stride length, 7.54 m, was the longest (average 7.08 m). The diagonal and airborne step lengths of Deep Impact were longer than the average values. The overlap time of Deep Impact was shorter than the average value. The ratio of overlap time to stride duration of Deep Impact was 8.5 %, whereas the average value was 16.9 %. A shorter overlap time was also observed on a common characteristic of Secretariat, the famous elite race horse in USA and correlated to running speed. Thus, these characteristics may be related to effective running form in elite horses.

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@LongBallToNoOne The great Deep Impact being the subject of another paper on equine stride mechanics. The Japanese study what makes their top horses better than others - https://t.co/ksHWVsW6kU
@Equusartist @Louchepunter fwiw, I once found this heavy read on Deep Impact "Running Form Characteristics of the Triple Crown Winner in Japan" They used another angle, Deep Impact 91° v Others 81° in the Kikuka Sho https://t.co/4HdKIbu6Lv https://t.co/RDIPz5Ods2
Running Form Characteristics of the Triple Crown Winner in Japan (Deep Impact) https://t.co/4HdKIbu6Lv
"Running Form Characteristics of the Triple Crown Winner in Japan" (Deep Impact x G1 Kikuka Sho. T. Takahashi et al) ⤵️ https://t.co/4HdKIbu6Lv Airborne time (0.124) actually less then average (0.134) however he traveled furthest (2.63 v 2.43). Massive hind propulsion #bullet https://t.co/J0w4kiHDLZ
@capricciosa1221 The paper they did on the Stride Parameters for Deep Impact was very good - https://t.co/NMhRYtJnKM
競走馬のフォームといえば、日本だと ディープインパクトのそれを分析した論文が存在するが、 そのイントロダクションでは、有力馬でフォームが 分析されているのは、当時ではセクレタリアトくらい しかいないとされている。 今ではもう少し研究は進んでいるのだろうか。 https://t.co/lP4kCKkm4j

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