Influence of Vitamin D Supplementation by Sunlight or Oral D3 on Exercise Performance Article Swipe
Alexander T. Carswell
,
Samuel J. Oliver
,
Laurel M. Wentz
,
Daniel Kashi
,
Ross Roberts
,
Jonathan Tang
,
Rachel M. Izard
,
Sarah Jackson
,
D Allan
,
Lesley E. Rhodes
,
William D. Fraser
,
Julie P. Greeves
,
Neil P. Walsh
·
YOU?
·
· 2018
· Open Access
·
· DOI: https://doi.org/10.1249/mss.0000000000001721
YOU?
·
· 2018
· Open Access
·
· DOI: https://doi.org/10.1249/mss.0000000000001721
Purpose To determine the relationship between vitamin D status and exercise performance in a large, prospective cohort study of young men and women across seasons (study 1). Then, in a randomized, placebo-controlled trial, to investigate the effects on exercise performance of achieving vitamin D sufficiency (serum 25(OH)D ≥ 50 nmol·L −1 ) by a unique comparison of safe, simulated-sunlight and oral vitamin D 3 supplementation in wintertime (study 2). Methods In study 1, we determined 25(OH)D relationship with exercise performance in 967 military recruits. In study 2, 137 men received either placebo, simulated sunlight (1.3× standard erythemal dose in T-shirt and shorts, three times per week for 4 wk and then once per week for 8 wk) or oral vitamin D 3 (1000 IU·d −1 for 4 wk and then 400 IU·d −1 for 8 wk). We measured serum 25(OH)D by high-pressure liquid chromatography tandem mass spectrometry and endurance, strength and power by 1.5-mile run, maximum dynamic lift and vertical jump, respectively. Results In study 1, only 9% of men and 36% of women were vitamin D sufficient during wintertime. After controlling for body composition, smoking, and season, 25(OH)D was positively associated with endurance performance ( P ≤ 0.01, Δ R 2 = 0.03–0.06, small f2 effect sizes): 1.5-mile run time was ~half a second faster for every 1 nmol·L −1 increase in 25(OH)D. No significant effects on strength or power emerged ( P > 0.05). In study 2, safe simulated sunlight and oral vitamin D 3 supplementation were similarly effective in achieving vitamin D sufficiency in almost all (97%); however, this did not improve exercise performance ( P > 0.05). Conclusions Vitamin D status was associated with endurance performance but not strength or power in a prospective cohort study. Achieving vitamin D sufficiency via safe, simulated summer sunlight, or oral vitamin D 3 supplementation did not improve exercise performance in a randomized-controlled trial.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1249/mss.0000000000001721
- OA Status
- green
- Cited By
- 70
- References
- 39
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2883296014
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2883296014Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1249/mss.0000000000001721Digital Object Identifier
- Title
-
Influence of Vitamin D Supplementation by Sunlight or Oral D3 on Exercise PerformanceWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2018Year of publication
- Publication date
-
2018-07-16Full publication date if available
- Authors
-
Alexander T. Carswell, Samuel J. Oliver, Laurel M. Wentz, Daniel Kashi, Ross Roberts, Jonathan Tang, Rachel M. Izard, Sarah Jackson, D Allan, Lesley E. Rhodes, William D. Fraser, Julie P. Greeves, Neil P. WalshList of authors in order
- Landing page
-
https://doi.org/10.1249/mss.0000000000001721Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://www.ncbi.nlm.nih.gov/pmc/articles/6282681Direct OA link when available
- Concepts
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Sunlight, Vitamin D and neurology, Placebo, Vitamin, Medicine, Animal science, Vertical jump, Internal medicine, Endocrinology, Biology, Jump, Alternative medicine, Quantum mechanics, Physics, Astronomy, PathologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
70Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 10, 2024: 8, 2023: 15, 2022: 10, 2021: 10Per-year citation counts (last 5 years)
- References (count)
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39Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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| referenced_works | https://openalex.org/W2170370311, https://openalex.org/W2050907928, https://openalex.org/W2131179951, https://openalex.org/W2022261106, https://openalex.org/W2168586313, https://openalex.org/W2131239091, https://openalex.org/W2083331082, https://openalex.org/W2793809916, https://openalex.org/W2057960769, https://openalex.org/W2041095264, https://openalex.org/W2440193831, https://openalex.org/W2096771654, https://openalex.org/W4231278347, https://openalex.org/W2080475625, https://openalex.org/W2019663454, https://openalex.org/W2016221502, https://openalex.org/W2421925119, https://openalex.org/W2054734969, https://openalex.org/W2063511102, https://openalex.org/W4250928742, https://openalex.org/W1889463131, https://openalex.org/W2602477620, https://openalex.org/W2003777435, https://openalex.org/W2126082097, https://openalex.org/W2026536777, https://openalex.org/W2014434606, https://openalex.org/W2129981941, https://openalex.org/W2075072883, https://openalex.org/W2153059487, https://openalex.org/W2157304718, https://openalex.org/W2305602131, https://openalex.org/W2530376009, https://openalex.org/W1877102901, https://openalex.org/W2122945494, https://openalex.org/W2055999471, https://openalex.org/W1829280121, https://openalex.org/W2038051752, https://openalex.org/W2443089306, https://openalex.org/W2230044011 |
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