Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance. / Carswell, Alexander T.; Oliver, Samuel J.; Wentz, Laurel M. et al.
Yn: Medicine and Science in Sports and Exercise, Cyfrol 50, Rhif 12, 12.2018, t. 2555-2564.

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

HarvardHarvard

Carswell, AT, Oliver, SJ, Wentz, LM, Kashi, DS, Roberts, R, Tang, JC, Izard, RM, Jackson, S, Allan, D, Rhodes, LE, Fraser, WD, Greeves, JP & Walsh, NP 2018, 'Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance', Medicine and Science in Sports and Exercise, cyfrol. 50, rhif 12, tt. 2555-2564. https://doi.org/10.1249/MSS.0000000000001721

APA

Carswell, A. T., Oliver, S. J., Wentz, L. M., Kashi, D. S., Roberts, R., Tang, J. C., Izard, R. M., Jackson, S., Allan, D., Rhodes, L. E., Fraser, W. D., Greeves, J. P., & Walsh, N. P. (2018). Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance. Medicine and Science in Sports and Exercise, 50(12), 2555-2564. https://doi.org/10.1249/MSS.0000000000001721

CBE

Carswell AT, Oliver SJ, Wentz LM, Kashi DS, Roberts R, Tang JC, Izard RM, Jackson S, Allan D, Rhodes LE, et al. 2018. Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance. Medicine and Science in Sports and Exercise. 50(12):2555-2564. https://doi.org/10.1249/MSS.0000000000001721

MLA

Carswell, Alexander T. et al. "Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance". Medicine and Science in Sports and Exercise. 2018, 50(12). 2555-2564. https://doi.org/10.1249/MSS.0000000000001721

VancouverVancouver

Carswell AT, Oliver SJ, Wentz LM, Kashi DS, Roberts R, Tang JC et al. Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance. Medicine and Science in Sports and Exercise. 2018 Rhag;50(12):2555-2564. Epub 2018 Gor 30. doi: 10.1249/MSS.0000000000001721

Author

Carswell, Alexander T. ; Oliver, Samuel J. ; Wentz, Laurel M. et al. / Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance. Yn: Medicine and Science in Sports and Exercise. 2018 ; Cyfrol 50, Rhif 12. tt. 2555-2564.

RIS

TY - JOUR

T1 - Influence of vitamin D supplementation by sunlight or oral D3 on exercise performance

AU - Carswell, Alexander T.

AU - Oliver, Samuel J.

AU - Wentz, Laurel M.

AU - Kashi, Daniel S.

AU - Roberts, Ross

AU - Tang, Jonathan C.

AU - Izard, Rachel M.

AU - Jackson, Sarah

AU - Allan, Donald

AU - Rhodes, Lesley E.

AU - Fraser, William D.

AU - Greeves, Julie P.

AU - Walsh, Neil P.

PY - 2018/12

Y1 - 2018/12

N2 - 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 D3 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 (1.3x standard erythemal dose in T-shirt and shorts, three-times-per-week for 4-weeks and then once-per-week for 8-weeks) or oral vitamin D3 (1,000 IU[BULLET OPERATOR]day-1 for 4-weeks and then 400 IU[BULLET OPERATOR]day-1 for 8-weeks). We measured serum 25(OH)D by LC-MS/MS 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, [INCREMENT]R2 = 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 D3 supplementation were similarly effective in achieving vitamin D sufficiency in almost all (97%); however, this did not improve exercise performance (P > 0.05). Conclusion 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 D3 supplementation did not improve exercise performance in a randomized-controlled trial.

AB - 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 D3 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 (1.3x standard erythemal dose in T-shirt and shorts, three-times-per-week for 4-weeks and then once-per-week for 8-weeks) or oral vitamin D3 (1,000 IU[BULLET OPERATOR]day-1 for 4-weeks and then 400 IU[BULLET OPERATOR]day-1 for 8-weeks). We measured serum 25(OH)D by LC-MS/MS 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, [INCREMENT]R2 = 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 D3 supplementation were similarly effective in achieving vitamin D sufficiency in almost all (97%); however, this did not improve exercise performance (P > 0.05). Conclusion 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 D3 supplementation did not improve exercise performance in a randomized-controlled trial.

U2 - 10.1249/MSS.0000000000001721

DO - 10.1249/MSS.0000000000001721

M3 - Article

VL - 50

SP - 2555

EP - 2564

JO - Medicine and Science in Sports and Exercise

JF - Medicine and Science in Sports and Exercise

SN - 0195-9131

IS - 12

ER -