著者

Koji MUROFUSHI Shinji Sakurai Koji Umegaki Kazutoshi Kobayashi

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, pp.116-128, 2005 (Released:2008-01-23)

参考文献数

18

被引用文献数

13 17

---

The aim of this study was to compare the radius of curvature and the estimated head speed as measured by sensors attached to a hammer with those calculated by video image analysis. The participant was the Japanese record holder(83m47). He threw a hammer with sensors which measured the force exerted along the length of the hammer cable using a tension meter made of a metal plate to which strain gauges were affixed, and the angular velocity perpendicular to the hammer cable using two IC accelerometers whose axes were aligned together with the hammer cable. The radius and speed obtained using the sensors were similar to those obtained from video analysis in values, but were slightly out of phase. This is because measuring the angular velocity by sensors eliminates translational motion and only produces results for rotational motion. The length of time required to obtain these results was shortened by the use of a hammer with sensors. Therefore, the system using sensors attached to a hammer will enable athletes and coaches to interpret the data about each throw while it is still fresh in their minds.

著者

Koki Sasabe Yuta Sekine Norikazu Hirose

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.202205, (Released:2022-10-15)

参考文献数

21

被引用文献数

1

---

The change-of-direction speed is an essential physical component in basketball. This study aimed to reveal the relationship between change-of-direction kinematics and the related motor abilities in basketball players. Motor abilities, including squat, sprint speed, vertical jump, and horizontal jump, were measured in 14 male collegiate basketball players. Furthermore, the change-of-direction speed and kinematics during the change-of-direction task, including the trunk lean angle and center-of-gravity height, were evaluated. Correlations between change-of-direction time and kinematics were assessed using the Pearson product-moment correlation coefficient. Once significant correlations were detected, correlations between motor abilities and change-of-direction kinematics variables related to change-of-direction time were assessed using the Pearson product-moment correlation coefficient. There were significant correlations between change-of-direction time and center-of-gravity height (r = 0.54), and trunk lean angle (r = -0.74). Moreover, there was a strong correlation (r = -0.53) between the center-of-gravity height and lower body strength. Improving lower muscle strength and change-of-direction kinematics may be necessary to enhance the overall change-of-direction performance.

著者

Jun Mizushima Joanne Kyra Loo Shermaine Lou Clifford J. Mallett

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.20, pp.241-248, 2022 (Released:2023-01-12)

参考文献数

22

---

Sport coaches develop their coaching knowledge and identity as coaches through their life experiences over time. However, limited knowledge exists for what motivates youth coaches in Asia to coach, how they learn their craft, and how they develop as coaches. Therefore, the purpose of this study was to investigate the developmental pathways of youth sport coaches in Singapore. Eleven youth sport coaches in Singapore (10 males, 1 female) from a range of sports were selected to take part in semi-structured interviews consisting of three sections: coaches' profile, valued learning experience, and motivation. Qualitative thematic analysis was implemented to understand the key aspects of coach development in their coaching careers. Data yielded six main categories about valued learning experiences: (1) interaction with other coaches, (2) learning from overseas practice, (3) athletic experience, (4) on-the-job experience, (5) mentoring, and (6) coach education program. Two main categories about coach motivation were identified. These were: (1) initial motivation to be a coach—sense of purpose and (2) motivation to continue coaching—enjoyment, satisfaction, and passion.

著者

Sookyoung Park Seunghoon Lee Yunkyung Hong Youngjeon Lee Kanghui Park Dongkwang Shin Sang-Rae Lee Kyu-Tae Chang Yonggeun Hong

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.10, pp.50-57, 2012 (Released:2012-09-13)

参考文献数

35

---

This study compared the range of hallux valgus angle (HVA) deformity between basketball players and same aged non-basketball players as controls. The participants included 21 basketball players (9 males, 12 females, mean age 18 years) and 36 age-matched college students (19 males, 17 females, mean age 20 years) who served as controls. After direct palpation of the first metatarsal and proximal phalange, we measured the HVA deformity using a photographic approach in the women basketball players and a goniometer for the men basketball players and all controls. The HVA was greater in basketball players than in the controls. Among female basketball players, the HVA was significantly greater in guards compared with forwards and centers. In conclusion, playing basketball may increase the HVA. The greater increase in HVA among guards might arise because they are required to make diagonal and horizontal movements that increase the burden on the foot. In general insole or ergonomic shoes could reduce pain, improved walking ability, and hallux valgus angle for prophylactic or therapeutic approaches. Therefore, an appropriate preventive interventional program should be developed.

著者

Susumu Sato Shinichi Demura Noriaki Sugano Hajime Mikami Tetsuhiko Ohuchi

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.6, pp.113-119, 2008-12-30 (Released:2009-11-05)

参考文献数

27

被引用文献数

1 6

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This study aimed to examine the characteristics of handedness in Japanese adults based on gender differences, the presence of left-handed (LH) relatives and experiences with the forced conversion of handedness. Subjects were comprised of 4668 Japanese adults ranging from 15 to 29 years of age (3127 males 18.8±1.8 years old and 1541 females 18.8±1.4 years old). We investigated their subjective handedness, the presence and type of LH relatives, and their experiences with forced conversion of handedness. Although there was no gender difference in the incidence of “innate LH (a subject who had experienced forced conversion of handedness, or a LH subject without experience in the forced conversion)”, females underwent more forced conversion of handedness and had a higher incidence of subjects whose handedness changed from LH to RH. There was no significant difference in the proportion of forced conversion based on the presence of LH relatives, but the incidence of innate LH was higher in subjects with LH relatives and the proportion of LH subjects who remained unchanged after forced conversion was also higher in subjects with LH relatives. Among the subjects with LH relatives, the incidence of current LH was significantly higher in subjects with LH grandparents or parents than siblings. These findings may suggest that forced conversion may influence a gender difference in the incidence of LH. In addition, the presence of LH relatives genetically and environmentally (imitation) influences handedness, and the influence is greater in parents than siblings.

著者

Robert M. Malina

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.2, pp.50-66, 2004 (Released:2008-01-23)

参考文献数

93

被引用文献数

64 91

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The development of motor competence during infancy and childhood is dependent upon and influenced by the growth and maturity characteristics of the child interacting with the environment in which a child is reared. Environmental opportunities and restraints for movement interact with the biological substrates of growth and maturation to determine the motor repertoire of the child. This paper provides a brief overview of motor development during infancy and early childhood and then highlights several specific areas and/or questions: critical evaluation of stages for specific movement patterns; extension of the dynamical systems framework; genotypic contributions to motor development; metabolic and physiological correlates of motor development; relationship of motor development to the growth of the brain, status at birth and early postnatal growth; and social contexts of motor development.

著者

Jung-uk Won Kaoru Kitamura

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.4, pp.233-251, 2006 (Released:2008-01-25)

参考文献数

56

被引用文献数

14 18

---

The purpose of this study was to examine motivational factors affecting consumption behavior of K-league and J-league spectators, and their predictability to explain it. We found that 10 motivational factors significantly, but not sufficiently explained the current attendance frequency of the K-league spectators, whereas these factors well predicted their future consumption behavior. It was considered that there is great potential in the K-league spectator market. The results of the J-league spectators indicated that team identification and vicarious achievement were strong predictors to explain the variance in the game attendance frequency of the J-league spectators, and these results were consistent with the results of Mahony, et al., (2002). However, we found a new predictor (social interaction) to explain this variance. Also, we found that escape was a new positive predictor to explain the intention to attend future games of the K-league and J-league spectators, and escape, player, and team identification were related to the future merchandise consumption of both the K-league and J-league spectators.

著者

Hayato Yamamoto Masanori Takemura Misato Tachibana Junzo Tsujita Tatsuya Hojo

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.202001, (Released:2020-05-30)

参考文献数

18

被引用文献数

2

---

Purpose: The purpose of this study was to analyze the impact of match results (win-loss, score differential) on the physical performance of rugby union teams to improve training and conditioning and provide ideas for use on the playing field. Methods: Data were obtained from 45 official matches over the 2013, 2014, and 2015 seasons of one team. Global positioning system units with built-in accelerometers were worn by the players; the per-match total distances, accelerations, and impact forces were calculated for the forwards and backs. Match results consisted of two elements: win–loss result and score differential. Results: Data showed that each parameter had high values in closely fought matches when a team lost or when the point differential was small. In addition, physical performance was impacted differently from one position to another. Forwards engaged in significantly less high-acceleration and high-impact activity in wins but significantly higher activities in close matches (p < 0.05). Backs engaged in significantly higher impacts (i.e., harder/more tackles) in close matches (p < 0.05). Conclusions: Based on these data, some suggestions for new approaches that can be adopted by strength and conditioning coaches to optimize training-related performance and prevent sports injuries have been included.

著者

Takaharu Nakamura Hironobu Tsuchiya

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201910, (Released:2020-03-13)

参考文献数

46

被引用文献数

1

---

Posttraumatic growth (PTG) is viewed as a positive psychological change resulting from the struggle with trauma. This study was designed to prospective examine the association of Hardiness and Social Support with PTG following athletic injuries. University student-athletes (N=235) completed a baseline survey that included questions about socio-demographics, and the Japanese version of the Hardiness Scale for University Student at Time 1 (T1). The same athletes completed a second survey (T 2) that included questions about experiences of sports-related injuries, the assessment of Subjective Units of Distress (SUDs), and responding to the Japanese version of the Social Support Scales for University Students, 14 months after T1. Four months later (T 3), 209 of the same athletes completed the PTG Scale After an Athletic Injury (PTGS-AI). Data of 92 participants that met the screening criteria were analyzed using multiple regression analysis. The results indicated that appraisal support was the only factor that significantly predicted PTG (β=.48, p<.01) after adjusting for potential covariates such as age and gender. Moreover, hierarchical regression analysis indicated that the association of hardiness and appraisal support with PTG was different for different PTG subscales. The interaction between hardiness and appraisal support was significant for Relating to Team Members (F (1, 87) =3.12, p<.05) and Psychological Strength as an Athlete (F (1, 87) =5.02, p<.01). These findings suggest that developing an environment in which athletes receive appraisal support could contribute to their psychological growth.

著者

Rikido Tomikawa

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.4, no.Special_Issue_2006, pp.103-109, 2006 (Released:2008-01-25)

参考文献数

11

被引用文献数

2 2

---

Bukh is a Mongolian traditional sport, in which the wrestler's body represents a beast and a bird of prey, namely supernatural strength. This is recognized as a numinous embodiment or spiritual possession. In the meantime, the incarnation rite of Bukh also functions as that of the community of Nutag. The symbolism of Bukh, in this meaning, is realized in two ritual spaces, the Ovoo festival whose cultural background lies in Nutag and Naadam which is performed as a ceremony. Moreover, the combination between Ovoo and Naadam festivals and Bukh serves a function as a mechanism to sustain collective memories and identity, perpetuating the identity of the Mongolians.

著者

Norihide Sugisaki Hiroaki Kanehisa Yasuo Kawakami Tetsuo Fukunaga

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, pp.100-109, 2005 (Released:2008-01-23)

参考文献数

20

被引用文献数

9 10

---

This study aimed to investigate the mechanisms of mechanical work and power enhancement of muscle-tendon complex (MTC) in rebound exercise by quantifying in vivo behavior of fascicle and tendinous tissue of human medial gastrocnemius muscle (MG). Subjects jumped on a sledge apparatus using only ankle joint with the following two conditions: plantar flexion without counter movement (PFJ) and rebound jumping from a height of 26 cm (RJ). The behavior of fascicle and tendinous tissue of MG in vivo was determined using ultrasonography. The relative contribution of tendinous tissue to the mechanical work of MTC during plantar flexion phase (PF phase) was 85% in RJ. The maximal mechanical power of tendinous tissue during the PF phase in RJ was about three times greater compared to that in PFJ. There was no significant difference in the mechanical power of fascicle during PF phase between the two conditions, while the mechanical work of fascicle in PFJ was less than that in the PF phase of RJ. In RJ, fascicle was stretched during the dorsiflexion phase. These findings indicated that, in rebound exercise using ankle joint, (1) the enhancement of mechanical work and power of MTC was due to the reuse of elastic energy stored in tendinous tissue during dorsiflexion phase, and (2) fascicles were stretched during dorsiflexion phase.

著者

Gen Horiuchi Shinji Sakurai

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.14, pp.94-101, 2016 (Released:2017-03-17)

参考文献数

19

被引用文献数

4 6

---

The purpose of this study was to identify mechanisms to increase bat head speed in baseball batting, from the view-point of kinetics. The batting motion of ninety-nine amateur baseball players was recorded with a motion capture system, and the kinematics and kinetics of the bat were analyzed. The bat's rotational power increased with the torque exerted on the bat's grip. However, torque and rotational power declined just prior to impact. It can be interpreted that these declines arise from a decrease in torque exerted by the wrist's periarticular muscles as the bat's rotational velocity increases (muscle force-velocity relationship). On the contrary, the bat's translational power increased just prior to impact. Judging from the relationship between the force exerted on the bat's grip in the direction of the bat's long axis and the bat head speed, the bat's translational power seems to depend on the bat's grip velocity in the direction of the bat's long axis. It was revealed that the bat's energy, by the application of rotational and translational power at different times, contributes to an increase in bat head speed in baseball batting.

著者

Norihide Sugisaki Hiroaki Kanehisa Kenji Tauchi Seita Okazaki Shigeo Iso Junichi Okada

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.9, pp.1-7, 2011 (Released:2011-04-19)

参考文献数

33

被引用文献数

9 24

---

The purpose of this study was to investigate the relationship between 30-m sprint running time and muscle cross-sectional areas of the psoas major and lower limb muscles. In sixteen male college short and middle distance runners, the muscle anatomical cross-sectional areas (CSAs) of the psoas major, the quadriceps femoris, the hip adductors (ADD), the hamstrings, the triceps surae, and the tibialis anterior and extensor digtrum longus complex (DF) were measured using a magnetic resonance imaging system. In addition, the relative values of CSA to the two-thirds power of body weight (CSA-to-BW2/3) were calculated. A stepwise multiple regression analysis produced a prediction equation (R2=0.605) of 30-m sprint running time with explanatory variables of ADD CSA-to-BW2/3 and DF CSA. The ADD CSA-to-BW2/3 had a negative partial regression coefficient (r=−0.768, p<0.01) and the DF CSA had a positive partial regression coefficient (r=0.526, p<0.05). From the present results, it is concluded that to have greater hip adductor muscles relative to the body size and smaller dorsiflexors is advantageous for achieving higher performance in 30-m sprint running.

著者

Maki Itoh Mary A. Hums Akiko Arai Etsuko Ogasawara

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201630, (Released:2018-03-02)

参考文献数

22

被引用文献数

1

---

The purpose of this qualitative study was to (a) determine structural barriers that must be overcome to cultivate female leaders and coaches and (b) study the development of a support system for female leaders and coaches. This study relied on in-depth interviews as the primary means of collecting data. Formal semi-structured interviews were conducted with seven former or currently active female Paralympians, including some who were current coaches. After analyzing the participants' responses, five distinct themes emerged: (a) social identity, (b) challenges of “double minority status” as women and persons with a disability, (c) underrepresentation of women as Paralympic coaches, (d) athletes wanting to be coaches indicating they needed formal training, and (e) current coaches feeling overwhelmed by task requirements not related directly to working with athletes. The first of these relate to realizing identity and the other four to overcoming barriers. The results offer insight into the career challenges and career perceptions of coaches and also former or currently active female Paralympians. The results provide researchers with insight into the status of careers of women in a segment of the sport industry, the Paralympic Movement, which has not yet been thoroughly explored.

著者

Lawrence P. Lai Jeffrey S. Shilt John S. Georgy

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201420, (Released:2015-12-14)

参考文献数

27

---

Herpes Zoster, also known as Shingles, is an eruption of latent Varicella Zoster viral particles which classically leads to a dermatomal skin eruption. While the causes of this reactivation are yet unknown, Shingles usually affects older individuals or those who are immunocompromised due to other disease processes or pharmacotherapy following organ transplant. We report the unique case of a world class triathlete who developed a painful dermatomal rash following a period of particularly intense training, travel, and competition. His training schedule for three months following the illness and return to competition is documented. The athlete's subsequent period of underperformance and profound fatigue suggest an inadequate recovery period. Review of the literature reveals a paucity of information describing an appropriate return to training and competition.

著者

MUROFUSHI Koji Sakurai Shinji Umegaki Koji Kobayashi Kazutoshi

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, pp.116-128, 2005

被引用文献数

17

---

The aim of this study was to compare the radius of curvature and the estimated head speed as measured by sensors attached to a hammer with those calculated by video image analysis. The participant was the Japanese record holder(83m47). He threw a hammer with sensors which measured the force exerted along the length of the hammer cable using a tension meter made of a metal plate to which strain gauges were affixed, and the angular velocity perpendicular to the hammer cable using two IC accelerometers whose axes were aligned together with the hammer cable. The radius and speed obtained using the sensors were similar to those obtained from video analysis in values, but were slightly out of phase. This is because measuring the angular velocity by sensors eliminates translational motion and only produces results for rotational motion. The length of time required to obtain these results was shortened by the use of a hammer with sensors. Therefore, the system using sensors attached to a hammer will enable athletes and coaches to interpret the data about each throw while it is still fresh in their minds.

著者

Emika Kato Toshiaki Oda Kentaro Chino Toshiyuki Kurihara Toshihiko Nagayoshi Tetsuo Fukunaga Yasuo Kawakami

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, no.Special_Issue_2005, pp.218-225, 2005 (Released:2008-01-23)

参考文献数

19

被引用文献数

14 32

---

Flexibility is often evaluated from the joint range of motion (ROM), but the mechanisms underlying gender differences in joint ROM have not been elucidated. The purpose of this study was to investigate the factors influencing the difference in ankle joint ROM between men and women with respect to the extensibility of muscle-tendon complex. Eighteen men (21-26 yr, 66.4±6.0kg, 173.7±7.4cm mean±SD) and 12 women (19-27yr, 52.9±4.8kg, 163.4±4.3cm) participated in this study. Each subject was seated with the knee extended, and the ankle joint was attached to a foot plate, by which the ankle joint was passively dorsiflexed with torque gradually increasing from zero to a value at which the passive loading to the ankle joint was just tolerable for each subject. During the passive loading, real-time ultrasonogram was taken to track the movement of MTJ (muscle-tendon junction of the gastrocnemius medialis and Achilles tendon) as the elongation of muscle belly (dMus). The change of MTC (muscle-tendon complex) length (dMTC) during the passive dorsiflexion was estimated from changes in ankle joint angle. Tendon elongation (dTen) was calculated by subtracting dMus from dMTC. There was no significant difference in normalized passive torque during passive dorsiflexion between men and women. Women were more flexible, i.e., they demonstrated greater dMTC, which was accompanied by greater dTen at lower torque levels. However, dMus was not different between men and women. It was concluded that gender difference in the joint ROM at the ankle reflects more compliant Achilles tendon in women than in men.

著者

Yoichi Ohta Hiroki Nakamoto

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.13, pp.84-95, 2015 (Released:2015-12-10)

参考文献数

17

---

This study aimed to clarify the effects of changing to a short bat grip position from the long bat grip position on baseball bat swing timing, peak ground reaction force with the front leg, and activation of the upper and lower limb muscles.   Nine male college baseball players participated in this study. By using a batting simulator, the coincident timing task was to swing the bat coincidentally with the arrival timing of a moving target by using the long or short bat grip position. The batter performed 10 sets of four swings for a total of 40 swings for the coincident timing task. During the four swings, the batter swung the bat by using the long grip position in the first, second, and fourth swings. Only in the third swing did the batter use the short grip position. The ground reaction force with the front leg was measured, and electromyograms of the upper and lower limb muscles were obtained during the coincident timing task.   Our results indicated no significant differences in absolute and variable timing errors between the long and short bat grip positions. In contrast, the constant timing error was significantly increased with the short bat grip position. Moreover, the time to peak ground reaction force and time to peak muscle activation of both the upper and lower limb muscles were significantly delayed when the short bat grip position was employed. Significant positive relationships were observed between the constant timing error and time to peak ground reaction force, which showed differences between the second and third swings. No significant difference in swing time was observed between the long and short bat grip positions.   These findings indicate that changing to the short bat grip position from the long bat grip position will not improve the batter's swing timing. Furthermore, changing to the short bat grip position could delay the batter's swing timing, probably because the change causes a delay in swing preparation.

著者

Takahiro Nakajima Shinsuke Yoshioka Senshi Fukashiro

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.202305, (Released:2023-08-04)

参考文献数

30

被引用文献数

1

---

This study aims to investigate the kinetic mechanisms of controlling the whole-body linear momentum (WBLM) and whole-body angular momentum around the whole-body center of mass (WBAM) in the single-support phase after tripping during gait. Twelve young participants were made to trip during gait, and the kinematics and kinetics of their recovery responses were recorded using a 17-camera motion capture system and force platform. We found that the knee-flexion torque of the support leg dominantly contributed to the decrease in the forward WBAM increased owing to tripping, whereas this torque caused a significant forward WBLM at foot landing. The ankle-plantarflexion torque of the support leg contributed to the prevention of the body descent in the first half of this phase, although this effect decreased in the later phase, resulting in the increase in the downward WBLM at foot landing. The ankle-plantarflexion torque also contributed to the increase in the forward WBLM at foot landing. These results indicate that the ankle- and knee-joint torque exertions of the support leg are the main contributors to the change in WBLM and WBAM in the single-support phase after tripping during gait. This study also suggests that there is a trade-off relationship between the control of WBLM and WBAM, and younger adults prioritize the WBAM adjustment during this phase.

著者

Kenta Karakida Hironobu Tsuchiya

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.21, pp.56-63, 2023 (Released:2023-07-14)

参考文献数

35

---

Previous studies have shown that self-consciousness traits are closely related to choking under pressure (Baumeister, 1984; Wang et al., 2004). However, it has not be distinguished between private and public self-consciousness. This study investigated the influence of private and public self-consciousness of athletes on the factors of choking under pressure. 281 subjects were asked to respond to a questionnaire on choking factors (Murayama and Sekiya, 2012) and a self-consciousness scale (Tsuji, 1993), and data from 253 subjects were analyzed. The results showed that higher private and public self-consciousness had more choking experience. Furthermore, we examined the influence of private and public self-consciousness on the factors of choking and found that private self-consciousness showed significant positive effects to be associated with changes in motor control, vicious circles, abnormal physical sensations, and conscious processing (attention to movement). In contrast, public self-consciousness showed significant positive effects on changes in motor control and vicious circles, perceptual and cognitive confusion, feelings of physical heaviness and weakness, passivity, and safety-oriented strategies. The results indicate that private and public self-consciousness affect different factors of choking under pressure.