Next Article in Journal
Time Trends in the Co-use of Cannabis and the Misuse of Tranquilizers, Sedatives and Sleeping Pills among Young Adults in Spain between 2009 and 2015
Next Article in Special Issue
The Influence of Tobacco Use on Pulmonary Function in Elite Athletes
Previous Article in Journal
Internal and External Demands in Basketball Referees during the U-16 European Women’s Championship
Previous Article in Special Issue
Association between Club Sports Participation and Physical Fitness across 6- to 14-Year-Old Austrian Youth
Article

The Associations of Vitamin D Status with Athletic Performance and Blood-borne Markers in Adolescent Athletes: A Cross-Sectional Study

1
Department of Taekwondo, College of Physical Education, Kyung Hee University (Global campus), 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 17014, Korea
2
Department of Kinesiology, College of Communication and Education, California State University-Chico, 400 West First Street, Chico, CA 95922, USA
3
Department of Sports Medecine, College of Physical Education, Kyung Hee University (Global campus), 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 17014, Korea
4
Department of Physical Education, College of Physical Education, Kyung Hee University (Global campus), 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 17014, Korea
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(18), 3422; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16183422
Received: 10 August 2019 / Revised: 10 September 2019 / Accepted: 12 September 2019 / Published: 14 September 2019
(This article belongs to the Special Issue Sports and Health)
The purpose of this study was to examine the associations of vitamin D status with athletic performance and blood-borne markers in adolescent athletes. This cross-sectional study included forty-seven Taekwondo athletes, aged 15–18 years old. Athletic performance was assessed using maximal oxygen consumption (VO2max), Wingate anaerobic power test, vertical jump, agility T-test, lower limb muscle strength, and fatigue resistance. Blood samples were collected to assess serum 25-hydroxyvitamin D [25(OH)D], free-testosterone, cortisol, creatine kinase, and urea. One-way ANOVAs were applied using Bonferroni adjusted alpha levels, which was 0.02 (i.e., 0.05/3). Multiple linear regressions analyses as well as Pearson and partial correlation analyses were used to examine the relationship among 25(OH)D concentration, athletic performance, and blood-borne markers. The participants 25(OH)D concentration were ranged from 16 to 73.25 nmol/L, indicating that 74.5% of the adolescent athletes have vitamin D insufficiency or deficiency. The vitamin D status did not show any significant effects on the performance factors or blood-borne markers. Serum 25(OH)D concentration was positively correlated with mean power output (r = 0.359, p < 0.05) and relative mean power output (r = 0.325, p < 0.05) after adjusting for bone age, height, weight, training experience, lean body mass, and fat mass. However, 25(OH)D concentration was not associated with other performance-related factors and blood-borne markers. In addition, multiple linear regressions analyses revealed that serum 25(OH)D concentration were not significant predictors of athletic performance in adolescent athletes. In conclusion, vitamin D status is weakly correlated with anaerobic capacity; moreover, the underlying mechanisms of how vitamin D influence anaerobic performance is unclear in the present study. Nevertheless, the importance of vitamin D on health benefits should not be underestimated, especially during growth periods. View Full-Text
Keywords: 25-hydroxivitamin D; exercise performance; stress-to-recovery status; adolescent athletes 25-hydroxivitamin D; exercise performance; stress-to-recovery status; adolescent athletes
MDPI and ACS Style

Seo, M.-W.; Song, J.K.; Jung, H.C.; Kim, S.-W.; Kim, J.-H.; Lee, J.-M. The Associations of Vitamin D Status with Athletic Performance and Blood-borne Markers in Adolescent Athletes: A Cross-Sectional Study. Int. J. Environ. Res. Public Health 2019, 16, 3422. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16183422

AMA Style

Seo M-W, Song JK, Jung HC, Kim S-W, Kim J-H, Lee J-M. The Associations of Vitamin D Status with Athletic Performance and Blood-borne Markers in Adolescent Athletes: A Cross-Sectional Study. International Journal of Environmental Research and Public Health. 2019; 16(18):3422. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16183422

Chicago/Turabian Style

Seo, Myong-Won, Jong K. Song, Hyun C. Jung, Sung-Woo Kim, Jung-Hyun Kim, and Jung-Min Lee. 2019. "The Associations of Vitamin D Status with Athletic Performance and Blood-borne Markers in Adolescent Athletes: A Cross-Sectional Study" International Journal of Environmental Research and Public Health 16, no. 18: 3422. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16183422

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop