Imperial College London
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DrNeilHill

Faculty of Medicine, Department of Metabolism, Digestion and Reproduction

Honorary Clinical Senior Lecturer
 
 
 
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n.hill

 
 
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Location

 

East WingCharing Cross Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fallowfield:2019:10.1017/s000711451800346x,
author = {Fallowfield, JL and Delves, SK and Hill, NE and Lanham-New, SA and Shaw, AM and Brown, PEH and Bentley, C and Wilson, DR and Allsopp, AJ},
doi = {10.1017/s000711451800346x},
journal = {British Journal of Nutrition},
pages = {384--392},
title = {Serum 25-hydroxyvitamin D fluctuations in military personnel during 6-month summer operational deployments in Afghanistan},
url = {http://dx.doi.org/10.1017/s000711451800346x},
volume = {121},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>Abstract</jats:title><jats:p>Soldier operational performance is determined by their fitness, nutritional status, quality of rest/recovery, and remaining injury/illness free. Understanding large fluctuations in nutritional status during operations is critical to safeguarding health and well-being. There are limited data world-wide describing the effect of extreme climate change on nutrient profiles. This study investigated the effect of hot-dry deployments on vitamin D status (assessed from 25-hydroxyvitamin D (25(OH)D) concentration) of young, male, military volunteers. Two data sets are presented (pilot study, <jats:italic>n</jats:italic> 37; main study, <jats:italic>n</jats:italic> 98), examining serum 25(OH)D concentrations before and during 6-month summer operational deployments to Afghanistan (March to October/November). Body mass, percentage of body fat, dietary intake and serum 25(OH)D concentrations were measured. In addition, parathyroid hormone (PTH), adjusted Ca and albumin concentrations were measured in the main study to better understand 25(OH)D fluctuations. Body mass and fat mass (FM) losses were greater for early (pre- to mid-) deployment compared with late (mid- to post<jats:italic>-</jats:italic>) deployment (<jats:italic>P</jats:italic><0·05). Dietary intake was well-maintained despite high rates of energy expenditure. A pronounced increase in 25(OH)D was observed between pre- (March) and mid-deployment (June) (pilot study: 51 (<jats:sc>sd</jats:sc> 20) <jats:italic>v.</jats:italic> 212 (<jats:sc>sd</jats:sc> 85) nmol/l, <jats:italic>P</jats:italic><0·05; main study: 55 (<jats:sc>sd</jats:sc> 22) <jats:italic>v.</jats:italic> 167 (<jats:sc>sd</jats:sc> 71) nmol/l, <jats:italic>P</jats:italic><0·05) and remained elevated post-deploymen
AU  - Fallowfield,JL
AU  - Delves,SK
AU  - Hill,NE
AU  - Lanham-New,SA
AU  - Shaw,AM
AU  - Brown,PEH
AU  - Bentley,C
AU  - Wilson,DR
AU  - Allsopp,AJ
DO  - 10.1017/s000711451800346x
EP  - 392
PY  - 2019///
SN  - 0007-1145
SP  - 384
TI  - Serum 25-hydroxyvitamin D fluctuations in military personnel during 6-month summer operational deployments in Afghanistan
T2  - British Journal of Nutrition
UR  - http://dx.doi.org/10.1017/s000711451800346x
VL  - 121
ER  -
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