Effect of Vitamin D Supplementation on 25(OH)D Status in Elite Athletes With Spinal Cord Injury.

International Journal of Sport Nutrition and Exercise Metabolism
Kelly PritchettMelissa LaCroix

Abstract

Recent studies suggest that a substantial proportion of athletes with spinal cord injury have insufficient 25(OH) vitamin D (25(OH)D) status, which may be associated with decreased muscle strength. This study consisted of two parts: (a) to examine the effects of a 12- to 16-week vitamin D3 supplementation protocol on 25(OH)D concentration and (b) to determine whether subsequent 25(OH)D status impacts muscle performance in elite athletes with spinal cord injury. Thirty-four members (age: 33 ± 15 years, weight: 69.6 ± 28.2 kg, and height: 170.2 ± 25.4 cm) of the U.S. and Canadian Paralympic program participated in the study. 25(OH)D concentrations and performance measures (handgrip strength and 20-m wheelchair sprint) were assessed pre- and postsupplementation. Participants were assigned a vitamin D3 supplementation protocol based on initial 25(OH)D concentrations. Participants with deficient 25(OH)D status (<50 nmol/L) received 50,000 IU/week for 8 weeks, and participants with insufficient status (50-75 nmol/L) received 35,000 IU/week for 4 weeks, after which both received a maintenance dose of 15,000 IU/week. Participants with sufficient status (>75 nmol/L) received the maintenance dose of 15,000 IU/week. 25(OH)D concentrations...Continue Reading

References

Aug 15, 2006·Gerontology·P M F Campbell, T J Allain
May 7, 2008·International Journal of Sport Nutrition and Exercise Metabolism·Kentz S WillisD Enette Larson-Meyer
Aug 30, 2008·Molecular Aspects of Medicine·Lisa Ceglia
Dec 5, 2008·Nutrition Reviews·Michael F Holick
Nov 27, 2008·The Journal of Clinical Endocrinology and Metabolism·Kate A WardZulf Mughal
Apr 7, 2009·Medicine and Science in Sports and Exercise·John J CannellJohn J B Anderson
Jul 14, 2010·Current Sports Medicine Reports·D Enette Larson-Meyer, Kentz S Willis
Aug 27, 2010·The Journal of Spinal Cord Medicine·Christina V OlesonLisa-Ann Wuermser
Sep 8, 2010·Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine·Naama W ConstantiniGal Dubnov-Raz
Dec 2, 2010·The Journal of Clinical Endocrinology and Metabolism·A Catharine RossSue A Shapses
Jun 8, 2011·The Journal of Clinical Endocrinology and Metabolism·Michael F HolickUNKNOWN Endocrine Society
Sep 15, 2011·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Isabel MarantesShreyasee Amin
Mar 3, 2012·The Journal of the American Academy of Orthopaedic Surgeons·Chad M PattonAlpesh A Patel
Mar 29, 2013·International Journal of Sport Nutrition and Exercise Metabolism·Pamela J MageeSharon M Madigan
Jun 14, 2013·Nutrients·Dana Ogan, Kelly Pritchett
Sep 11, 2013·Pediatric Exercise Science·Gal Dubnov-RazNaama W Constantini
Nov 20, 2013·The Journal of Clinical Endocrinology and Metabolism·Kirsten V KnutsenHaakon E Meyer
Nov 22, 2013·Clinical Endocrinology·Christian M GirgisJenny E Gunton
Dec 10, 2013·Nutrition & Metabolism·Tyler BarkerLindell K Weaver
Aug 28, 2014·International Journal of Endocrinology·Cristiana CiprianiSalvatore Minisola
Sep 26, 2014·Sports Medicine·Joshua J ToddPamela J Magee
Apr 18, 2015·BMC Cancer·Germaine WongRichard Prince
May 23, 2015·Biochemical and Biophysical Research Communications·Michael J Berridge
Jan 26, 2016·Archives of Physical Medicine and Rehabilitation·Arcangelo BarbonettiFelice Francavilla
Nov 5, 2016·Spinal Cord·J L FlueckC Perret
Apr 21, 2016·International Journal of Sport Nutrition and Exercise Metabolism·Rachel A HildebrandBrenda J Smith

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Citations

Nov 14, 2019·Nutrients·D Enette Larson-MeyerTanya M Halliday
Jun 12, 2020·World Journal of Gastroenterology : WJG·Marco BernardiTommaso Sciarra
Jul 3, 2021·Nutrients·Keely A ShawPhilip D Chilibeck
Nov 11, 2021·Adapted Physical Activity Quarterly : APAQ·Andreia BauermannAnselmo A Costa E Silva

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