Miwako Homma

• PhD
• Professor at University of Tsukuba

We investigated sensorimotor synchronization abilities across swimmers of different artistic expertise levels. Elite, novice, and non-artistic female swimmer participants completed finger and foot tapping tasks involving single and polyrhythmic patterns that were intended to simulate the rhythmic coordination required in artistic swimming. Although...

The purpose of this study was to clarify whether the flutter kicks exert propulsion in front crawl. Two experiments were conducted in the flume. In the first, a swimmer performed maintaining streamline trial and flutter kicks trial while tethered to a load cell in a flume. The results showed reduced tethered force in the kick trial, indicating prop...

The purpose of this study was to verify the educational effectiveness and outcomes of university swimming classes for enhancing self-preservation skills in the water, which had been formulated by Yamanaka et al. (2022), and to re-structure the teaching theory for these skills based on their design. Educational effectiveness was evaluated in terms o...

The kick-start technique in competitive swimming generates a force acting on the starting platform owing to gravity, muscle contraction and resulting joint torque. To understand optimal body movement on the starting platform for maximising take-off velocity, it is necessary to investigate the joint torque in relation to the joint’s rotation effects...

This study aims at clarifying the factors responsible for the change in hand propulsive force when the stroke frequency was changed. Eight male swimmers performed five 20-m-front crawls. The first trial involved maximal effort, whereas the stroke frequency was controlled during the next four trials. The instructed stroke frequencies were 70%, 80%,...

This study aimed to assess kinematic and kinetic changes in front crawl with various stroke frequency (SF) conditions to investigate why swimming velocity (SV) does not increase above a certain SF (SF max). Eight male swimmers performed 20 m front crawl four times. The first trial involved maximal effort, whereas SF was controlled during the next t...

The aim of this study was to compare artistic swimmers (ASs) and water polo players (WPs) in their polyrhythmic production ability and entrainment between arm and leg motion frequency. Nine ASs and nine WPs participated in the study. First, we assessed the natural eggbeater kick frequency of each participant without any additional motion for 20 s....

This study compares polyrhythmic production ability between water polo players (WPs), artistic swimmers (ASs) and drummers (Ds), to assess how their differing experiences in coordinating complex inter-limb activity with music affected this ability. Eight ASs, eight WPs and eight Ds participated. They were asked to perform finger and foot taps in a...

The purpose of this study was to clarify how elite artistic (synchronised) swimmers generate fluid forces with their hands during two kinds of sculling motions: flat sculling in the back-layout position and support sculling in the vertical position. We used the pressure-distribution measuring method to estimate unsteady fluid forces acting on the h...

The purpose of this study was to compare active drag during front-crawl swimming performed by competitive swimmers with passive drag acting on the same group of swimmers with streamlined position at various velocities. Seven male competitive swimmers participated in this study, and the testing was conducted in a swimming flume. The active drag was...

The purpose of this study was to examine the relationship between the buoyancy of synchronized swimmers and the airborne weight of basic positions. Whole-body volume, buoyancy, underwater weight, and airborne weight at 12 levels in basic positions were measured for eight female synchronized swimmers (15.6 ± 2.98 years, 1.60 ± 0.05 m, 52.7 ± 4.40 kg...

This study is aimed at analysing the scientific literature related to physiological responses in synchronized swimmers, produced from 2006 to 2016. A systematic review was conducted using electronic databases (Google Scholar, PubMed, SportDiscus, Web Science, Scielo and Scopus) in national and international journals. The articles were selected usin...

The characteristics of the hydrodynamic forces acting on the hand at different loads during sculling in synchronized swimming was estimated using a pressure distribution measuring method. One cycle of flat scull in a back layout position and support scull in a vertical position for one female national-level synchronized swimmer were analyzed. Resul...

In synchronized swimming, a swimmer exerts forces on the other swimmers in the water. There have been no methods to analyze such mechanical phenomena to date. Such analytical method is promising to acquire new findings which will be useful for the improvement of performance The objectives of this study were to develop the simulation model for the a...

The purpose of this study was to investigate the psychological trait of Japanese national synchronized swimmers at different levels of performance. We analyzed the scales of psychological competitive ability for synchronized swimmers of national A team (22.3 ± 2.2 yrs, n = 12), national B team (18.0 ± 2.2 yrs, n = 8), junior national team (15.8 ± 0...

Forearm bone mineral content for adult white elite synchronized swimmers is lower than that of normative data (Roby et al. 1988). However, bone mineral density (BMD) in local body regions and the body as a whole are unclear in adolescent synchronized swimmers. The purpose of this study was to examine BMD of adolescent synchronized swimmers. This st...

Forearm bone mineral content for adult white elite synchronized swimmers is lower than that of normative data (Roby et al. 1988). However, bone mineral density (BMD) in local body regions and the body as a whole are unclear in adolescent synchronized swimmers. The purpose of this study was to examine BMD of adolescent synchronized swimmers. This st...

We investigated coaching points for the technique of the eggbeater kick in synchronized swimming. The movements of the eggbeater kick for six female synchronized swimmers, all the top-ranking members at the Olympics and World Championships, were analyzed by using three-dimensional motion analysis. By comparing the movements of higher eggbeater-skil...

We investigated coaching points for the technique of the eggbeater kick in synchronized swimming. The movements of the eggbeater kick for six female synchronized swimmers, all the top‐ranking members at the Olympics and World Championships, were analyzed by using three‐dimensional motion analysis. By comparing the movements of higher eggbeater‐skil...

Data from previous studies provided the mean values of body proportions for each age group of healthy Japanese children, but not the standard curves describing the distribution. The aim of the study was to construct a chart of body proportion of girls and boys in Japan. About 4% of the nationwide student population in Japan, more than 20,000 childr...

Recently, body height is considered as one of the major elements for synchronized swimmers to acquire high performance score. The aim of the study was to compare body height and proportion of Japanese female synchronized swimmers in elementary school to age-matched normal female Japanese or other Caucasian populations, by using charts of body heigh...

To determine the daily energy requirement of elite synchronized swimmers during moderate-intensity training, the average daily energy expenditure measured by the doubly labeled water method, was calculated for nine female Japanese national team synchronized swimmers [four senior; mean (SD) 22.5 (1.0) years old, 52.2 (3.6) kg, and five junior; 17.6...

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=620975&tocid=100036025&page=130

共通科目｢体育｣の一科目として｢アクアエクササイズ｣を開設して2年目になる。この授業は、筆者が別に担当している｢水泳｣の授業が4泳法の技術の取得を主眼に置いたプログラムで構成されているのに対して、水泳を含む種々の水中運動プログラムで構成されている。具体的には、1学期にはアクアベルトを付けて行うディープウォーターエクササイズ、 ... http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=722675&tocid=100047393&page=37-48

2004年7月21~25日、モスクワで開催された第9回FINA(国際水泳連盟)ジュニアシンクロナイズドスイミング世界選手権(以下、｢ジュニア世界選手権｣と略す)に、日本代表ジュニアチームの帯同審判員として参加したので報告する。 ジュニア選手権は、シンクロのジュニア年齢区分(15歳~18歳)で世界覇者を決める大規模な競技会である。 ... http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=781157&tocid=100051419&page=71-76

筑波大学における共通体育の開講形態は、一年を通して一人の教官から同一種目を学ぶ｢通年完結型｣が基本である。これに対して他の多くの大学では、学期単位(前期または後期)での完結型を採用しており、このことから鑑みても本学の共通体育の開講形態は高い独自性を有していると言える。 ... http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=595612&tocid=100033969&page=71-81

本稿では、本学の｢総合科目｣のひとつとして開講されている｢スポーツへの冒険｣について報告する。 筑波大学の一般体育を運営する体育センターの教官を中心に企画されたこの授業は｢メディアに見るスポーツ｣(平成11年度)、｢スポーツその遺産｣(平成12年度)をその前身としており、 ... http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=595612&tocid=100033972&page=107-139

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=221154&tocid=100058900&page=13-22

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=241824&tocid=100058937&page=25-45

アテネオリンピックでは、国際水泳連盟(FINA:Federation Internationale de Natation )シンクロ技術委員会(TSSC: Technical Synchronised Swimming Committee) 委員として、競技運営、審判員編制、審判員の ... http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=786265&tocid=100051622&page=111-114

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=848087&tocid=100062211&page=1-14

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=900306&tocid=100070071&page=69-78

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=927208&tocid=100075575&page=169-173

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=943192&tocid=100080208&page=79-86

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=989194&tocid=100084990&page=35-45

http://www.tulips.tsukuba.ac.jp/mylimedio/dl/page.do?issueid=1030448&tocid=100089889&page=233-237