Vitamin D status and muscle function among adolescent and young swimmers

Research output: Contribution to journalJournal articlepeer-review

Standard

Vitamin D status and muscle function among adolescent and young swimmers. / Geiker, Nina Rica Wium; Larsen, Rikke; Hansen, Mette; Jørgensen, Niklas R; Jakobsen, Jette; Hansen, Birthe S; Kristensen, Michael; Bügel, Susanne Gjedsted.

In: International Journal of Sport Nutrition & Exercise Metabolism, Vol. 27, No. 5, 2017, p. 399-407.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Geiker, NRW, Larsen, R, Hansen, M, Jørgensen, NR, Jakobsen, J, Hansen, BS, Kristensen, M & Bügel, SG 2017, 'Vitamin D status and muscle function among adolescent and young swimmers', International Journal of Sport Nutrition & Exercise Metabolism, vol. 27, no. 5, pp. 399-407. https://doi.org/10.1123/ijsnem.2016-0248

APA

Geiker, N. R. W., Larsen, R., Hansen, M., Jørgensen, N. R., Jakobsen, J., Hansen, B. S., Kristensen, M., & Bügel, S. G. (2017). Vitamin D status and muscle function among adolescent and young swimmers. International Journal of Sport Nutrition & Exercise Metabolism, 27(5), 399-407. https://doi.org/10.1123/ijsnem.2016-0248

Vancouver

Geiker NRW, Larsen R, Hansen M, Jørgensen NR, Jakobsen J, Hansen BS et al. Vitamin D status and muscle function among adolescent and young swimmers. International Journal of Sport Nutrition & Exercise Metabolism. 2017;27(5):399-407. https://doi.org/10.1123/ijsnem.2016-0248

Author

Geiker, Nina Rica Wium ; Larsen, Rikke ; Hansen, Mette ; Jørgensen, Niklas R ; Jakobsen, Jette ; Hansen, Birthe S ; Kristensen, Michael ; Bügel, Susanne Gjedsted. / Vitamin D status and muscle function among adolescent and young swimmers. In: International Journal of Sport Nutrition & Exercise Metabolism. 2017 ; Vol. 27, No. 5. pp. 399-407.

Bibtex

@article{05b09b25bc81460b8db9de22229d3e53,
title = "Vitamin D status and muscle function among adolescent and young swimmers",
abstract = "Impaired muscle function has been coupled to vitamin D insufficiency in young women and in elderly men and women. Those living at Northern latitudes are at risk of vitamin D insufficiency due to low sun exposure which may be more pronounced among elite swimmers because of their indoor training schedules. We aimed to examine vitamin D status among young elite swimmers and evaluate the association between vitamin D status and muscle strength. Twenty-nine swimmers, 12 female and 17 male (16-24 years) residing at latitude 55-56°N were studied in March and April. Blood samples were analysed for serum 25-hydroxyvitamin D (s-25(OH)D) and hand-grip strength was measured as marker of muscle strength. Subjects' vitamin D and calcium intake were assessed by food frequency questionnaire and sun exposure and training status by questionnaires. Mean (±SD) s-25(OH)D was 52.6 ± 18.3nmol/L among all swimmers. In 45% of the swimmers s-25(OH)D was below 50 nmol/L. Female swimmers had higher s-25(OH)D concentration than male swimmers (61.7 ± 17,5 nmol/L vs. 46.2 ± 16,5 nmol/L, p= 0.026). Among male swimmers, those with sufficient vitamin D status had higher hand grip strength than those with insufficient vitamin D status (50.6 ± 6.4 kg vs. 41.1 ± 7.8 kg, p = 0.02). Among Danish elite swimmers 45% had an insufficient vitamin D status during the spring; the prevalence being higher among male swimmers. Muscle strength was significantly higher in male swimmers with sufficient vitamin D status.",
keywords = "25-hydroxyvitamin D, Muscle strength, Athletes",
author = "Geiker, {Nina Rica Wium} and Rikke Larsen and Mette Hansen and J{\o}rgensen, {Niklas R} and Jette Jakobsen and Hansen, {Birthe S} and Michael Kristensen and B{\"u}gel, {Susanne Gjedsted}",
note = "CURIS 2017 NEXS 303",
year = "2017",
doi = "10.1123/ijsnem.2016-0248",
language = "English",
volume = "27",
pages = "399--407",
journal = "International Journal of Sport Nutrition & Exercise Metabolism",
issn = "1526-484X",
publisher = "Human Kinetics, Inc",
number = "5",

}

RIS

TY - JOUR

T1 - Vitamin D status and muscle function among adolescent and young swimmers

AU - Geiker, Nina Rica Wium

AU - Larsen, Rikke

AU - Hansen, Mette

AU - Jørgensen, Niklas R

AU - Jakobsen, Jette

AU - Hansen, Birthe S

AU - Kristensen, Michael

AU - Bügel, Susanne Gjedsted

N1 - CURIS 2017 NEXS 303

PY - 2017

Y1 - 2017

N2 - Impaired muscle function has been coupled to vitamin D insufficiency in young women and in elderly men and women. Those living at Northern latitudes are at risk of vitamin D insufficiency due to low sun exposure which may be more pronounced among elite swimmers because of their indoor training schedules. We aimed to examine vitamin D status among young elite swimmers and evaluate the association between vitamin D status and muscle strength. Twenty-nine swimmers, 12 female and 17 male (16-24 years) residing at latitude 55-56°N were studied in March and April. Blood samples were analysed for serum 25-hydroxyvitamin D (s-25(OH)D) and hand-grip strength was measured as marker of muscle strength. Subjects' vitamin D and calcium intake were assessed by food frequency questionnaire and sun exposure and training status by questionnaires. Mean (±SD) s-25(OH)D was 52.6 ± 18.3nmol/L among all swimmers. In 45% of the swimmers s-25(OH)D was below 50 nmol/L. Female swimmers had higher s-25(OH)D concentration than male swimmers (61.7 ± 17,5 nmol/L vs. 46.2 ± 16,5 nmol/L, p= 0.026). Among male swimmers, those with sufficient vitamin D status had higher hand grip strength than those with insufficient vitamin D status (50.6 ± 6.4 kg vs. 41.1 ± 7.8 kg, p = 0.02). Among Danish elite swimmers 45% had an insufficient vitamin D status during the spring; the prevalence being higher among male swimmers. Muscle strength was significantly higher in male swimmers with sufficient vitamin D status.

AB - Impaired muscle function has been coupled to vitamin D insufficiency in young women and in elderly men and women. Those living at Northern latitudes are at risk of vitamin D insufficiency due to low sun exposure which may be more pronounced among elite swimmers because of their indoor training schedules. We aimed to examine vitamin D status among young elite swimmers and evaluate the association between vitamin D status and muscle strength. Twenty-nine swimmers, 12 female and 17 male (16-24 years) residing at latitude 55-56°N were studied in March and April. Blood samples were analysed for serum 25-hydroxyvitamin D (s-25(OH)D) and hand-grip strength was measured as marker of muscle strength. Subjects' vitamin D and calcium intake were assessed by food frequency questionnaire and sun exposure and training status by questionnaires. Mean (±SD) s-25(OH)D was 52.6 ± 18.3nmol/L among all swimmers. In 45% of the swimmers s-25(OH)D was below 50 nmol/L. Female swimmers had higher s-25(OH)D concentration than male swimmers (61.7 ± 17,5 nmol/L vs. 46.2 ± 16,5 nmol/L, p= 0.026). Among male swimmers, those with sufficient vitamin D status had higher hand grip strength than those with insufficient vitamin D status (50.6 ± 6.4 kg vs. 41.1 ± 7.8 kg, p = 0.02). Among Danish elite swimmers 45% had an insufficient vitamin D status during the spring; the prevalence being higher among male swimmers. Muscle strength was significantly higher in male swimmers with sufficient vitamin D status.

KW - 25-hydroxyvitamin D

KW - Muscle strength

KW - Athletes

U2 - 10.1123/ijsnem.2016-0248

DO - 10.1123/ijsnem.2016-0248

M3 - Journal article

C2 - 28556690

VL - 27

SP - 399

EP - 407

JO - International Journal of Sport Nutrition & Exercise Metabolism

JF - International Journal of Sport Nutrition & Exercise Metabolism

SN - 1526-484X

IS - 5

ER -

ID: 180507658