Effects of Casein Timing on Body Composition and Performance
Effects of Evening Casein Protein Consumption on Body Composition and Performance
1 other identifier
interventional
33
1 country
1
Brief Summary
This study will investigate the effects of night time versus day time casein supplementation on body composition and athletic performance. Participants will consume the protein supplements daily while participating in a supervised, periodized resistance training program.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Sep 2016
Shorter than P25 for not_applicable
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
September 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 18, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
November 18, 2016
CompletedFirst Submitted
Initial submission to the registry
November 16, 2017
CompletedFirst Posted
Study publicly available on registry
November 24, 2017
CompletedNovember 24, 2017
November 1, 2017
3 months
November 16, 2017
November 20, 2017
Conditions
Outcome Measures
Primary Outcomes (3)
Changes in lean soft tissue
estimation of muscle mass by DXA
pre to post over 10 weeks
Changes in squat 1 repetition maximum
measure of lower body strength
pre to post over 10 weeks
Changes in bench press 1 repetition maximum
measure of upper body strength
pre to post over 10 weeks
Secondary Outcomes (4)
changes in fat mass
pre to post over 10 weeks
changes in percent body fat
pre to post over 10 weeks
changes in quadriceps cross-sectional area
pre to post over 10 weeks
changes in quadriceps muscle thickness
pre to post over 10 weeks
Study Arms (2)
Day
ACTIVE COMPARATORGroup receives casein protein during the day (greater than 6 hours before bed).
Night
EXPERIMENTALGroup receives casein protein immediately before going to bed.
Interventions
Eligibility Criteria
You may qualify if:
- healthy
- trained (exercises 2-5 days per week for previous 1-3 years)
- maintains regular sleep patterns (7-9 hours per night weekly average)
You may not qualify if:
- use of ergogenic aids or medicines known to influence outcomes
- data will be excluded if a participant is \<80% compliant with diet and training interventions
- consumes greater than or equal to 12 alcoholic beverages per week
- tobacco use
- dairy allergy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Texas Woman's University
Denton, Texas, 76204, United States
Related Publications (1)
Joy JM, Vogel RM, Shane Broughton K, Kudla U, Kerr NY, Davison JM, Wildman REC, DiMarco NM. Daytime and nighttime casein supplements similarly increase muscle size and strength in response to resistance training earlier in the day: a preliminary investigation. J Int Soc Sports Nutr. 2018 May 15;15(1):24. doi: 10.1186/s12970-018-0228-9.
PMID: 29764464DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Graduate Research Assistant
Study Record Dates
First Submitted
November 16, 2017
First Posted
November 24, 2017
Study Start
September 1, 2016
Primary Completion
November 18, 2016
Study Completion
November 18, 2016
Last Updated
November 24, 2017
Record last verified: 2017-11