R Bescós García1, F A Rodríguez Guisado. 1. Sport Sciences Research Group, National Institute of Physical Exercise of Barcelona, Barcelona, Spain. raul.bescos@inefc.net
Abstract
INTRODUCTION: Although vitamin D deficiency has a high worldwide prevalence among the general population, very little is known about vitamin status in athletes. AIM: To investigate serum vitamin D (25[OH]D) levels after wintertime in male elite basketball players, and to relate these levels to the dietary intake of vitamin D and calcium. METHODS: Subjects were 21 players from the same professional Spanish team. Blood samples to assess 25(OH)D levels were collected after wintertime during the 2008/2009 (April) and 2009/2010 (March) seasons. In addition, athletes completed 4-day dietary records to estimate energy consumption and a food frequency questionnaire to determine dietary vitamin D and calcium intake. Serum 25(OH)D levels were 47.8±21.8 nmol/L, with twelve subjects (57%) being vitamin D deficient (<50 nmol/L). RESULTS: Vitamin D intake was 139±78 IU/day and calcium intake was 948±419 mg/day. Serum 25(OH)D levels correlated with the daily dietary intake of vitamin D (r=0.65; P=0.001) and calcium (r=0.82; P<0.001). CONCLUSION: Professional basketball players are at higher risk of hypovitaminosis D after wintertime. Adequate intake of dietary calcium and vitamin D is required if athletes are to avoid low serum 25(OH)D levels when exposure to sunlight is limited.
INTRODUCTION: Although vitamin D deficiency has a high worldwide prevalence among the general population, very little is known about vitamin status in athletes. AIM: To investigate serum vitamin D (25[OH]D) levels after wintertime in male elite basketball players, and to relate these levels to the dietary intake of vitamin D and calcium. METHODS: Subjects were 21 players from the same professional Spanish team. Blood samples to assess 25(OH)D levels were collected after wintertime during the 2008/2009 (April) and 2009/2010 (March) seasons. In addition, athletes completed 4-day dietary records to estimate energy consumption and a food frequency questionnaire to determine dietary vitamin D and calcium intake. Serum 25(OH)D levels were 47.8±21.8 nmol/L, with twelve subjects (57%) being vitamin D deficient (<50 nmol/L). RESULTS:Vitamin D intake was 139±78 IU/day and calcium intake was 948±419 mg/day. Serum 25(OH)D levels correlated with the daily dietary intake of vitamin D (r=0.65; P=0.001) and calcium (r=0.82; P<0.001). CONCLUSION: Professional basketball players are at higher risk of hypovitaminosis D after wintertime. Adequate intake of dietary calcium and vitamin D is required if athletes are to avoid low serum 25(OH)D levels when exposure to sunlight is limited.
Authors: Tina Shuk-Tin Ip; Sai-Chuen Fu; Michael Tim-Yun Ong; Patrick Shu-Hang Yung Journal: Asia Pac J Sports Med Arthrosc Rehabil Technol Date: 2022-07-02
Authors: E M P Backx; M Tieland; K Maase; A K Kies; M Mensink; L J C van Loon; L C P G M de Groot Journal: Eur J Clin Nutr Date: 2016-07-27 Impact factor: 4.016