• Title/Summary/Keyword: TENNIS

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Positive effect of Saengmaeg-san intake on blood lipid and arteriosclerosis index during high-intensity training (고강도 트레이닝 시 생맥산 섭취가 혈중 지질 및 동맥경화 지수에 미치는 긍정적인 영향)

  • Kwak, Jae-Jun;Lee, Jae-Hoon;Yook, Jang Soo;Lee, Sang-Ho;Ha, Min-Seong
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.6
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    • pp.1512-1523
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    • 2021
  • The purpose of this study was to investigate the effect of Saengmaeg-san intake on blood lipids and arteriosclerosis index in male tennis players. Seventeen male tennis players enrolled in university were assigned to a Saengmaeg-san intake group (n=9) and a placebo control group (n=8) according to whether they took Saengmaeg-san during 4-week high-intensity tennis training. Tennis training was conducted 5 times a week for 4 weeks, and the exercise intensity was performed at 70-90% of the spare heart rate. The intake of Saengmaeg-san was 110ml at a time before breakfast, before, during, during, and after exercise, and after dinner, a total of 7 times, 770ml per day. For all data, mean and standard deviation were used. Two-way repeated measures ANOVA was used to examine the effect of time and treatment, and Pearson's Correlation was used to examine the relevance of differences in blood lipid responses after treatment. As a result of this study, the Saengmaeg-san intake group significantly improved blood lipids (triglyceride, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol) and arteriosclerosis index, and there was a significant correlation appeared between ∆TG, ∆LDL-C, and ∆TC. As a result, the intake of Saengmaeg-san during high-intensity training of male college student tennis players can have a positive effect on blood lipids and arteriosclerosis index, suggesting that it can be an effective sports drink as an exercise supplement.

The effect of competition anxiety on injury psychology according to the athletic career of tennis athletes in Chinese universities (중국 대학 테니스 운동선수 운동경력에 따른 경쟁불안이 상해심리에 미치는 영향)

  • Han Yahui;Duan Mingtao;Lee Jaewoo
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.2
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    • pp.349-355
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    • 2023
  • This study attempted to investigate the effect of competitive anxiety on injury psychology according to the athletic career of tennis athletes at Chinese universities. To study the method, 208 athletes enrolled in a four-year university (0 university, 0 university) located in A City, Hanam Province, were surveyed for a total of three weeks from the end of January to the beginning of February 2023. To verify the research model, frequency analysis, exploratory factor analysis, reliability analysis, and correlation analysis were conducted using SPSS Statistics 25. And independent sample t-test and one-way ANOVA were conducted to find out the differences in variables according to general characteristics, and multiple regression analysis was conducted to verify hypotheses through the concept of measurement. As a result of the study, first, it was found that there was a significant difference in the athletic career of tennis athletes at West China University. Second, the non-standardized coefficient of competition anxiety was found to have a positive (+) effect on exercise weaponry. Third, the non-standardized coefficient of competition anxiety was found to have a positive (+) effect on anxiety and anxiety. Therefore, it was found that other competitive anxiety in the exercise career had an effect on injury psychology. Since competition anxiety according to the athletic career of tennis athletes at Chinese universities affects injury psychology, it suggests that a psychological program that can control competition anxiety and injury psychology of athletes should be developed and introduced to athletes.

The Effect of Heel-heights on Lumbar Lordosis for Young Ladies (20대 성인여성에서 신발 굽높이가 요추 전만도에 미치는 영향)

  • Song, Byung-Ho;Park, Jee-Young
    • The Journal of Korean Physical Therapy
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    • v.13 no.3
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    • pp.613-624
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    • 2001
  • Backgroun and purpose: The purpose of this study was to find out the effect of high heel shoes on lumbar lordosis for young ladies. The most of ladies wear high heel shoes at least 4 to 5 days a week. Subjects: Subjects were 30 young ladies age between 20 to 30 years old who go to the Sahm Yook University. Methods: Participants were static standing position with bear feet, tennis shoes. and 6cm high heel shoes each different time. The ankles of subjects were 15 degree plantar flexion with 6cm high heel shoes. Metrecom Skeletal Analysis System v. 3. 10 was used to measure the lordosis of each subject. Results: The angle of the lordosis with high heel shoes showed the significant decrease omparing with the angle of lordosis with bear feet and tennis shoes. The mean difference is 2.57 degree. Conclusion: There is strong relationship between the high of heel with decreasing the lumbar lordosis(p<0.05).

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