scholarly journals Effect of yogurt fermented with Lactococcus lactis subsp. cremoris FC on salivary secretory IgA levels in high school-student long-distance runners

2019 ◽  
Vol 68 (6) ◽  
pp. 407-414
Author(s):  
Yayoi Gotoh ◽  
Hideki Kosaka ◽  
Chisato Aiso ◽  
Katsuhisa Yoshida ◽  
Tsukasa Motoyama ◽  
...  
Keyword(s):  
High School ◽  
Lactococcus Lactis ◽  
High School Student ◽  
Secretory Iga ◽  
Distance Runners ◽  
Long Distance

scholarly journals Relationship between Nonspecific Low Back Pain and Physical Function among Japanese High School Long-distance Runners

2021 ◽  
Vol 6 (2) ◽  
pp. p1
Author(s):  
K. Nakagawa ◽  
A. Mitomo ◽  
Y. Takahashi
Keyword(s):  
High School ◽  
Low Back Pain ◽  
Back Pain ◽  
Muscle Strength ◽  
Low Back ◽  
Distance Runners ◽  
Long Distance ◽  
Pain Group ◽  
History Of ◽  
Hip Extension

Background: For long-distance runners, low back pain as well as lower extremity disorders are becoming more common. This study analyzed the relationship between regular physical assessment results and nonspecific low back pain among long-distance runners. Methods: Subjects included 105 high school long-distance runners, who were divided into the low back pain group (n = 20; LP) and non-pain group (n = 85; NP). All subjects underwent regular chronic pain and physical assessments every six months. Differences in each measurement between both groups were analyzed using an unpaired t-test for comparison.Results: The LP had a shorter history of athletics (LP=3.2 years, NP=4.6 years, 95% confidence interval (95%CI): -2.55, -0.28, r=0.45), a greater hip extension angle (LP=32.7°, NP=28.4°, 95% CI: 2.85, 5.61, r=0.67), a lower hip extension muscle strength (LP=3.1 kgf/kg, NP=4.0 kgf/kg, 95% CI; 0.19, 0.61, r=0.45), and a greater number of times during the stand-up test (LP=11.1, NP=8.1, 95% CI; 0.40, 5.56, r=0.45) than the NP.Conclusion: An excessive hip extension angle and insufficient hip extension muscle strength were considered as risk factors. It is possible that the excessive movement of the hip joint and the biarticular muscles may have caused the low back pain in the inexperienced runners.

scholarly journals Examination of Factors Related to Bone Mineral Density in Female High School Long Distance Runners and Sprinters

2017 ◽  
Vol 70 (1) ◽  
pp. 9-15
Author(s):  
Aoi Ikedo ◽  
Aya Ishibashi ◽  
Saori Matsumiya ◽  
Aya Kaizaki ◽  
Atsushi Yuhaku ◽  
...  
Keyword(s):  
High School ◽  
Bone Mineral Density ◽  
Bone Mineral ◽  
Distance Runners ◽  
Mineral Density ◽  
Long Distance ◽  
Female High School

scholarly journals Sport Specialization in Middle- and High-School Long-Distance Runners

2021 ◽  
Author(s):  
Micah C. Garcia ◽  
Jeffery A. Taylor-Haas ◽  
Mitchell J. Rauh ◽  
Michael D. Toland ◽  
David M. Bazett-Jones
Keyword(s):  
Quality Of Life ◽  
High School ◽  
Sleep Quality ◽  
Sleep Duration ◽  
Average Distance ◽  
Distance Runners ◽  
Adolescent Athletes ◽  
Long Distance ◽  
Male And Female

Abstract Context: Previous reports suggest high-specialized adolescent athletes may be at a higher risk of injury, worse sleep quality, and lower sport enjoyment than low-specialized athletes. Currently, sport specialization literature is primarily composed of adolescent athletes from a variety of sports. However, it is unknown if the findings on sport specialization from predominantly non-running athletes are generalizable to adolescent long-distance runners. Objective: Compare injury history, running volume, quality of life, sleep habits, and running enjoyment among male and female middle- and high-school long-distance runners from different sport specialization levels. Design: Cross-sectional. Setting: Online survey. Participants: A total of 102 male (age=15.8±0.9 years) and 157 female (age=15.6±1.4 years) uninjured middle- and high-school athletes who participated in long-distance running activities (completion rate=50.7%). Main Outcome Measure(s): Participants were stratified by sex and sport specialization level (low, moderate, high). Group differences in self-reported running-related injuries, EQ-5D-Y quality of life, Pittsburgh Sleep Quality Index sleep quality, sleep duration, running habits, and running enjoyment were assessed. Results: High-specialized male and female middle- and high-school long-distance runners reported competing more months per year (p<0.001), higher weekly run distance (p<0.001), more runs per week (p<0.001), higher average distance per run (p<0.001), and higher running enjoyment (p<0.001) than low-specialized runners. Males reported higher average weekly run distance (p=0.01), higher average distance per run (p=0.01), and better sleep quality (p=0.01) than females. No differences among sport specialization were found for running-related injuries (p=0.25), quality of life (p=0.07), sleep quality (p=0.19), or sleep duration (p=0.11) among male or female middle- and high-school runners. Conclusions: High-specialized male and female middle- and high-school long-distance runners reported higher running volumes and running enjoyment than low-specialized runners. However, high-specialized runners did not report a greater number of running-related injuries, lower quality of life, or lower sleep quality or duration as expected.

Sport Specialization and Quality of Life among Middle- and High-School Long-Distance Runners of Different Injury Status: A Retrospective Study

2021 ◽  
pp. 1-8
Author(s):  
Micah C. Garcia ◽  
Jeffery A. Taylor-Haas ◽  
Mitchell J. Rauh ◽  
Michael D. Toland ◽  
David M. Bazett-Jones
Keyword(s):  
Quality Of Life ◽  
High School ◽  
Retrospective Study ◽  
Distance Runners ◽  
Long Distance ◽  
Injury Status
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