Details of a Researcher - Muramatsu, Tadashi

Papers - Muramatsu, Tadashi

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Relation between speed and spin of the ball in the forehand ground stroke of the world number one tennis player

MURAMATSU TADASHI, Hiroo Takahashi, Kaoru Umebayashi

スポーツパフォーマンス研究 7 292 - 299 2015

Research paper (scientific journal), Joint Work, Accepted

It is considered to be very important to know both the speed and the spin of the ball of top players in tennis. Almost no research has been done on both speed and spin except for Muramatsu (2015, in Japanese), who reported about the service of top world-class players. However, we found no published reports of research on the forehand stroke. The present study focused on both the speed and the spin of the ball of 16 forehand strokes by the world number one male tennis player during competition, and examined their relationship. The ball speed data were obtained from the Hawk-Eye system, which archives ball-speed data from competitions. Ball spin was measured from shots taken with a high-speed camera shooting at 2000 fpm. The regression equation for calculating spin from ball speed was spin (rpm) = -33.2 x speed (km/h) + 7878. The average speed of the 16 forehand strokes was 132 km/h, and the average spin was 3486 rpm. These data may be useful indices for players aiming at improving their competitive power and for their coaches.

Relationship between speed and spin of tennis serve in world-class tennis players

MURAMATSU TADASHI, Hiroo Takahashi,Kaoru Umebayashi

テニスの科学 (日本テニス学会) 23 1 - 7 2015

Research paper (scientific journal), Joint Work, Accepted

We investigated the relationship between the speed and amount of spin of the serves of seven world-class tennis players. To estimate the amount of ball spin, we used a high-speed video camera running at 2000 frames per second to record the serves of those players in the matches of an international tennis tournament, played on a hard court surface. All of the studied players were placed in the world’s top 50 in either the year before the recorded matches or the year after. From the same matches, we obtained speed data as recorded by the Hawk-Eye system. For each player, we found a strong negative correlation between the serve speed and amount of spin. The average regression line using spin as the outcome variable (y; rpm) and speed as the predictor variable (x; km/h) was y = －56.4 x + 12954. We did not find any significant differences between the regression slopes or regression intercepts of the players. In addition, we did not find any significant dif-ferences between the regression slopes or regression intercepts between any one player’s first and second serves. The present study identifies target values for the speed and spin of a serve for players aiming to be-come top-ranked.

MURAMATSU TADASHI

スポーツパフォーマンス研究 2 220-232 2010

Research paper (scientific journal), Joint Work, Accepted

テニスのゲームにおける打球スピードと回転数の実態：ITF女子サーキット10000ドル大会に出場した選手を対象として

村上俊祐, 花木大樹, 村松憲, 三橋大輔, 髙橋仁大

テニスの科学 28 1 - 12 2020.03

Research paper (scientific journal), Joint Work, Accepted

シーズンスポーツ「アウトドアレクリエーション」受講者のライフスキルの獲得 : ふりかえりの記述による質的検討　

野口和行 , 村山光義 , 村松憲 , 板垣悦子 , 東海林祐子

体育研究所紀要 57 ( 1 ) 19 - 31 2018.01

Research paper (bulletin of university, research institution), Joint Work, Accepted

How does a tennis player’s ball speed, ball spin, and racket speed change when the opponent’s balls get stronger?

TADASHI MURAMATSU

慶應義塾大学体育研究所紀要 (慶應義塾大学体育研究所) 56 9 - 22 2017.01

Research paper (bulletin of university, research institution), Single Work, Accepted, ISSN 02866951

ボール挙動測定器を用いたテニスのサービスのボール速度とボール回転数の解析の可能性

村上俊祐,高橋仁大,村松憲,佐藤文平,佐藤雅幸,小屋菜穂子,北村哲,前田明

スポーツパフォーマンス研究 8 361 - 374 2016

Research paper (scientific journal), Joint Work, Accepted

体育実技受講学生の社会的スキル及び自己効力感の変容に関する検討 : 授業形態の違いによる比較

MURAMATSU TADASHI

慶應義塾大学体育研究所紀要 54 ( 1 ) 9 - 16 2015

Research paper (bulletin of university, research institution), Joint Work, Accepted

体育実技履修学生の社会的スキルおよび自己効力感の水準に関する基礎的検討

村山光義 , 加藤大仁 , 須田芳正 [他] , 村松憲 , 野口和行

慶應義塾大学体育研究所紀要 52 ( 1 ) 21 - 31 2013.01

Research paper (bulletin of university, research institution), Joint Work, Accepted

Focusing on students taking physical education classes in university, we conducted a preliminary study of two test conditions using Kikuchi's Social Skill Scale (KiSS-18) and the General Self-Efficacy Scale (GSES). The primary results of this study were as follows :
1) At the start of the first semester, we observed a significant difference between students who were 18–20 years of age and those who were 21 years of age in KiSS-18 and GSES scores, as well as a significant difference between 1st/2nd and 3rd year students, suggesting that both greater age and education level are related to higher scores on both measures.
2) In most subjects, KiSS-18 and GSES scores in the first semester were higher than the norm of these tests.
3) KiSS-18 scores tended towards a normal distribution, while GSES scores did not fall into a normal distribution.
4) Overall, KiSS-18 and GSES scores improved at the end of each semester, which we calculated by comparing the scores from the beginning and end of the first semester, and those from the beginning and end of the second semester. Students who took the classes in only one semester showed no improvement in scores from the beginning to the end of either semester.
According to the above results, social skills and self-efficacy improved during the experiment according to age and amount of physical education training.

日本の女子学生トップレベルテニス選手の強化策ー第25回ユニバーシアード競技大会（2009/ベオグラード）の銅メダル獲得から見えてきたものー

MURAMATSU TADASHI

テニスの科学 (日本テニス学会) 19 11-26 2011.03

Research paper (scientific journal), Joint Work, Accepted

ナショナルジュニアテニス選手に適した体力測定項目の検討

小屋菜穂子、梅林薫、北村哲、村松憲、井上直子

同志社スポーツ健康科学 (同志社大学スポーツ健康科学会) 3 6-13 2011.03

Research paper (bulletin of university, research institution), Joint Work, Accepted

学生の成長に寄与する体育科目の再構築に向けた基礎的検討ー一般性自己効力感、社会的スキルの変化に着目してー

加藤大仁、村山光義、須田芳正、村松憲

慶應義塾大学体育研究所紀要 50 ( 1 ) 9-22 2011.01

Research paper (bulletin of university, research institution), Joint Work, Accepted

Event Detection Based on Non-broadcasting Video for the Analysis of Doubles Match of Tennis

Momoko Kai, Shinji Ozawa, and Tadashi Muramatsu

Computer Vision Winter Workshop 2009, Adrian Ion and Walter G. Kropatsch (eds.) Eibiswald, Austria, February 4–6 (PRIP, Vienna University of Technology, Austria) 2009

Research paper (conference, symposium, etc.), Joint Work, Accepted

若齢者における総頸動脈血管径，内中膜複合体厚および血圧の関係

奥山靜代，牛山潤一，村松憲，村山光義，佐々木玲子

慶應義塾大学体育研究所紀要 48 1-6 2009

Research paper (bulletin of university, research institution), Joint Work, Accepted

様々な重心動揺指標を用いた本塾塾生の平衡機能の評価

牛山潤一，政二慶，村松憲，奥山靜代，村山光義，佐々木玲子

慶應義塾大学体育研究所紀要 47 ( 1 ) 13-24 2008.01

Research paper (bulletin of university, research institution), Single Work, Accepted

大学テニス授業への映像フィードバック導入事例　―自動スロー再生機能を用いて―

村松憲, 村山光義

慶應義塾大学体育研究所　プロジェクト研究報告2008 2008

Research paper (other academic), Joint Work

超音波法を用いた塾生の形態評価について

MURAMATSU TADASHI

慶應義塾大学体育研究所　プロジェクト研究報告2008 2008

Research paper (other academic), Joint Work

スポーツを気楽に楽しみませんか

MURAMATSU TADASHI

三色旗 ( 717 ) 53 2007.12

Research paper (other academic), Single Work

競技特性とスポーツ障害の予防テニスと肘関節傷害

Ryoso Tomosue, Tadashi Muramatsu

臨床スポーツ医学 24 ( 12 ) 1269-1273 2007.12

Research paper (scientific journal), Single Work

超音波法を用いた塾生の形態評価について

村松憲・牛山潤一・清水靜代・村山光義・佐々木玲子

慶應義塾大学体育研究所紀要 46 ( 1 ) 17-24 2007.01

Research paper (bulletin of university, research institution), Joint Work, Accepted

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