• Journal of the Korea Society of Computer and Information
• /
• v.24 no.5
• /
• pp.93-102
• /
• 2019

The nation's fraternity and elite players who have built up a global bicycle infrastructure often find it to be a problem with the bicycle's speed and speed reduction, pain in knees and hip joints, or even with the bike itself, or with the bike's own physical defects or a riding posture. However, we found that most cases of cleat adjustment errors were likely to be true. Accurate adjustment of the cleats is the most important of the entire fitting process and can be the basis for improving the ability of the bicycle rider and preventing injury. Therefore, the study was intended to give a prior study of bicycle fitting, which can improve bicycle efficiency and prevent injury when riding bicycle, and specific ways of adjusting bicycle shoe cleats, and the following results were obtained. First, the cleat characteristics of Shimano, LOOK and Speedplay, which are currently used in public, and the characteristics during the cleat adjustment process, were derived. In addition, the structure and characteristics of dedicated shoes using cleats and the method of using pedalling by the structure of shoes after adjusting the cleats were derived. Second, the position of the shoe and its relationship with torque in pedalling was discussed, and the method of adjusting front and back of cleats was derived. Third, leg length, ASIS, Q-Angle and Q-factor etc. were analyzed and the method of setting and adjusting cleat left and right values were derived. Fourth, the relationship between walking angle and cleat rotation was analyzed, the method was derived, and the torque size and angle behind the cleat adjustment were compared and analyzed using the spinner to indicate the torque and the effective mean torque angle after the cleat adjustment.

• Journal of Digital Convergence
• /
• v.19 no.2
• /
• pp.471-479
• /
• 2021

The purpose of this study is to find out what meanings would be brought to the old females' lives, who took part in the line dance as programs for senior's health. 6 the old females were selected. Research materials were gathered from in-depth interviews and observations by researcher. As a result of content analysis, the following conclusions were drawn. First, elderly's motives for participation in line dance were found to be solicitation of the surroundings, recovery and maintenance of health, and participation in pursuit of happiness. Second, the elderly's line dance experience was changed the perception of dance. Third, line dance improved interest and confidence in the body and appearance. Fourth, the line dance experience provides a space for making new friends. Fifth, the line dance experience improved a sense of accomplishment and immersion through dance. Sixth, the support and praise of the family increased self-esteem and improved overall life satisfaction and happiness.

• Journal of the Korean Applied Science and Technology
• /
• v.38 no.2
• /
• pp.579-586
• /
• 2021

This study aimed to identify the influence of soccer star's human brand on attitude and attachment to the club, providing the importance and implications of brand management of star players in the club. Therefore, a non-face-to-face mobile survey was conducted from January 14 to March 5, 2021, and a total of 348 copies of data were used for the final analysis. Data processing used the SPSS (ver.21.0) program to conduct frequency analysis, internal consistency and exploratory factor analysis, correlation analysis, and multiple regression analysis. The main results of this study are as follows. First, the human brand of a soccer star has been shown to influence the attitude of the club in the order of ethicality, attractiveness, and differentiation. Second, the human brand of a soccer star has been shown to influence the attachment of the club in the order of ethicality, attractiveness, and differentiation.

• Journal of the Institute of Convergence Signal Processing
• /
• v.21 no.2
• /
• pp.92-100
• /
• 2020

Currently, the demand for underwater or underwater photography is growing very fast. Its coverage of underwater shooting for broadcasting, leisure and sports, and military and operational use is also growing rapidly. Among them, we specifically select the best camera to be used in underwater drones to photograph and inspect marine life attached to the ship's hull. To compare three cameras performance, they are compared and evaluated using objective and subjective criteria in special circumstances such as underwater shooting. This study checks whether performance criteria, such as resolution of a camera, meet objective and subjective standards in the unusual situation of underwater shooting. And it shows that in addition to the filter that calibrates the image, proper camera selection is important for providing good picture quality. Even after this study, research using more diverse cameras could provide an appropriate standard for comparison of underwater camera quality.

• Journal of the Korean Applied Science and Technology
• /
• v.39 no.4
• /
• pp.560-567
• /
• 2022

This study attempted to provide basic data on efficient competition operation plans by identifying how the identity of the Korean FK CUP competition affects value and participation intention. Therefore, among those who are aware of the FK CUP competition organized by the Korea Futsal League, those who have participated in the futsal competition were selected as samples. The survey was conducted face-to-face and non-face-to-face from April 1 to June 17, 2022, and a total of 299 data were used for the final analysis. Data processing used the SPSS (ver.21.0) program to conduct frequency analysis, exploratory factor analysis, internal consistency, correlation analysis, simple and multiple regression analysis. The main results of this study are as follows. First, the identity of the Korean FK CUP competition has been shown to influence the value in the order of organization, human and symbol. Second, the value has been shown to influence the participation intention. Third, the identity of the Korean FK CUP competition has been shown to influence the participation intention in the order of organization, human.

• International Journal of Internet, Broadcasting and Communication
• /
• v.14 no.4
• /
• pp.163-172
• /
• 2022

The purpose of this study is to investigate the changes in the number of repetitions and the repetition rate according to the exercise mode when performing 65%1RM resistance exercise at the 1-minute rest interval and the 3-minute rest interval. Sixteen healthy male subjects were treated with Bench press and Biceps curl of 65%1RM intensity at 1 and 3 minute rest intervals. The number of repetitions for each set of 1 minute rest interval showed a significant decrease from 1set to 5set in bench press. biceps curl showed a significant decrease from 1set to 4set. The repetition rate according to the exercise mode with a 1-minute rest interval showed a significant difference from 2sets to 4sets. In the repetition rate for each set, bench press showed a significant decrease from 1set to 5set. biceps curl showed a significant decrease from set 1 to set 4. The number of repetitions according to the exercise mode with a 3-minute rest interval showed a significant difference from 2sets to 5sets. In the number of repetitions for each set, bench press showed a significant decrease from 1set to 5set. biceps curl showed a significant decrease from 1set to 4set. The repetition rate according to the exercise mode with a 3-minute rest interval showed a significant difference from 2sets to 5sets. In the repetition rate for each set, bench press showed a significant decrease from 1 set to 5 sets. biceps curl showed a significant decrease from 1set to 4set. In summary, the decrease in the number of repetitions according to the set progression in the resistance exercise of the endurance depends on the exercise mode, and the increase of the rest interval or the decrease of the weight-intensity should be considered when aiming for more exercise.

• Medical Lasers
• /
• v.10 no.4
• /
• pp.220-228
• /
• 2021

Background and Objectives In designing a resistance exercise program, intensity, rest, and exercise volume are important. Many studies have been conducted to find the most suitable resistance exercise program incorporating the above, and in particular, many prior studies have been conducted on intensity. This study attempted to determine the effective volume of exercise by analyzing the number of repetitions performed at intensities of 65% one-repetition maximum (1RM) and 75% 1RM during the bench press exercise, and the electromyography (EMG) response of the agonist muscle. Materials and Methods Eight males in their 20s were selected as study subjects and they performed five sets of bench presses at two levels of intensity (65% 1RM, 75% 1RM). The following results were obtained by measuring the number of repetitions and the EMG response according to the exercise intensity and sets during the workout. Results First, the number of repetitions showed a sharp drop from the first set to the third set at 65% 1RM intensity and showed no change in the fourth and fifth sets. At 75% 1RM intensity, the intensity of hypertrophy showed a gradual decrease from the first set to the fifth set. Second, at 75% 1RM exercise intensity, the pectoralis major, anterior deltoid and triceps brachii showed high muscle activity, and the activity of the anterior deltoid continued to increase from the first set to the fourth set at 65% 1RM intensity, and from the first set to the fifth set at 75% 1RM. Conclusion It was found that during the bench press exercise, three minutes of rest at 75% 1RM intensity, five sets of five sets, one minute rest at 65% 1RM intensity, and three sets of the exercise were effective.

• International Journal of Advanced Culture Technology
• /
• v.10 no.4
• /
• pp.286-293
• /
• 2022

In this study, we extracted sound waves that can improve psychological skills for volleyball players, investigated the changes that the application training of the extracted sound waves has on the brain waves of volleyball players, and the changes in brain waves are the psychological of volleyball players. The purpose of the research is to investigate the effect on technology. In order to achieve this purpose of the study, a total of 10 people from the experimental group and 10 from the control group were selected as the research subjects of university volleyball players with more than 5 years of volleyball experience. The experimental procedure was for the experimental group to listen to sound waves for more than 30 minutes at least 4 times a week for 12 weeks, and brain waves were measured 3 times before, during, and after. In addition, psychological skills were measured twice before and after. The measured data were subjected to t-test and two-way variance repeated measures analysis using SPSS 20.0. The results obtained through this process are as follows. First, as a result of analyzing the differences in psychological skills according to sound wave application training, there were statistically significant differences in goal setting and attention factors of the experimental group. Second, as a result of repeated measurement variance analysis at each time point according to the application of the sound wave application training program, it was found that alpha waves had a synergistic effect at the statistical significance level in the experimental group. Third, as a result of repeated measurement variance analysis at each time point according to the application of the sound wave application training program, it was found that the beta wave had a synergistic effect at the statistical significance level in the experimental group.

• Journal of the Korean Applied Science and Technology
• /
• v.38 no.6
• /
• pp.1502-1511
• /
• 2021

In order to analyze the phenomenon that occurs as the human brand domain of the golf advertising model expands, this study conducted a causal relationship (SEM) of 521 people using a mobile survey (URL) according to a sampling plan from July 1 to November 15, 2021. was applied and analyzed. First, the hypothesis was adopted with a statistically significant positive (+) effect on the fit of the human brand of the golf advertising model. Second, the hypothesis of suitability was adopted with a statistically significant positive (+) effect on purchasing behavior. Third, the human brand of the golf advertising model was hypothesized to have a statistically significant positive (+) effect on purchasing behavior. Finally, as a result of calculating the indirect effect through bootstrapping, it can be seen that the indirect effect of suitability in the relationship between human brand and purchasing behavior is statistically significant.

• Fashion & Textile Research Journal
• /
• v.24 no.4
• /
• pp.471-478
• /
• 2022

In roadside workplaces, more attention should be paid to the safety of workers. The roadside workers underestimate the effect of the brightness of their clothes and judge that drivers will recognize them easily, and the drivers misjudge that the roadside workers are far away and that the vehicle can be stopped in sufficient time. Therefore, customized safety education reflecting this and wearing work clothes with certified visibility functions are required. In Korea, it is not compulsory for roadside workers and vehicle guide attendants to wear work clothes with a visibility function. In this study, the distance ahead perceived by drivers was measured using manikins wearing certified and non-certified reflective safety vests. The perception distance of the non-certified reflective safety vest was 1.4 times longer than that of the certified reflective safety vest, thus confirming the importance of wearing a certified reflective safety vest. To prevent roadside workers from suffering traffic accidents, we propose the enactment of a law that makes it mandatory for them to wear high-visibility safety clothing. Specifically, Article 32 of the Enforcement Regulation of the Road Traffic Act should include high-visibility safety clothing in life protection equipment, and additionally, to prevent secondary accidents, we propose the enactment of a law requiring the installation and wearing of certified reflective safety vests in vehicles.