Pre-sleep Protein Supplementation in British Army Recruits
1 other identifier
interventional
122
1 country
1
Brief Summary
Dietary protein has been shown to be important to support physical training. For occupational demands such as military training, new recruits often fail to meet the recommended protein intake during basic training (BT), with negligible amounts consumed in the evening. As such, individuals undertaking BT may require higher intakes than the general population.This study assessed the influence of a daily bolus of protein prior to sleep on performance adaptations, body composition and recovery in British Army recruits.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2021
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 31, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
May 31, 2022
CompletedFirst Submitted
Initial submission to the registry
August 3, 2023
CompletedFirst Posted
Study publicly available on registry
August 21, 2023
CompletedAugust 21, 2023
July 1, 2023
1.1 years
August 3, 2023
August 11, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Lower body strength performance
Mid-thigh pull
12 weeks
Secondary Outcomes (1)
Body composition
12 weeks
Study Arms (4)
High protein intake supplementation
EXPERIMENTALA daily 60g dose of whey protein supplementation received between 8-9pm during BT.
Moderate protein intake supplementation
EXPERIMENTALA daily 20g dose of whey protein supplementation received between 8-9pm during BT.
Carbohydrate placebo supplementation
PLACEBO COMPARATORA daily isocaloric carbohydrate (maltodextrin) placebo received between 8-9pm during BT.
Control group
OTHERControl group, no daily supplement received, only participating in BT.
Interventions
The participants received a 60g protein bolus each evening prior to sleep from week 3 to week 12 of training.
The participants received a 20g protein bolus each evening prior to sleep from week 3 to week 12 of training.
The participants received an isocaloric carbohydrate bolus each evening prior to sleep from week 3 to week 12 of training.
The participants did not receive any supplementation but instead acted as a control group doing BT only
Eligibility Criteria
You may qualify if:
- Enrolled into British Army basic training
- Medically fit to start Army training
You may not qualify if:
- Not taking any other nutritional supplement
- Not currently pregnant
- Not dairy or lactose intolerant or have any specific dietary requirements .
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Anglia Ruskin Universitylead
- University of Exetercollaborator
Study Sites (1)
Anglia Ruskin University
Cambridge, Cambridgeshire, CB1 1PT, United Kingdom
Related Publications (1)
Chapman S, Roberts J, Roberts AJ, Ogden H, Izard R, Smith L, Chichger H, Struszczak L, Rawcliffe AJ. Pre-sleep protein supplementation does not improve performance, body composition, and recovery in British Army recruits (part 1). Front Nutr. 2023 Nov 30;10:1262044. doi: 10.3389/fnut.2023.1262044. eCollection 2023.
PMID: 38144428DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Justin D Roberts, PhD
Anglia Ruskin University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 3, 2023
First Posted
August 21, 2023
Study Start
May 1, 2021
Primary Completion
May 31, 2022
Study Completion
May 31, 2022
Last Updated
August 21, 2023
Record last verified: 2023-07
Data Sharing
- IPD Sharing
- Will not share