NCT01555385

Brief Summary

The aim of the study is to investigate the influence of nutritive (high-protein or high-carbohydrate) and non-nutritive (low energy) breakfast on psychological and physiological responses of mental workload during multitasking in healthy volunteers.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
13

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2011

Geographic Reach
1 country

1 active site

Status
completed

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, 2011

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

March 14, 2012

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 15, 2012

Completed
17 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2012

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2013

Completed
Last Updated

March 6, 2013

Status Verified

March 1, 2013

Enrollment Period

7 months

First QC Date

March 14, 2012

Last Update Submit

March 5, 2013

Conditions

Keywords

Mental workloadMultitaskingProteinTryptophan

Outcome Measures

Primary Outcomes (1)

  • Brain measures of mental workload (ERP 300 amplitude and latency) and heart rate

    1 day

Secondary Outcomes (5)

  • Subjective mental workload and mood measurement assessed using visual analogue scale in response to test meal.

    1 day

  • cognitive function measurements

    1 day

  • Blood concentration of glucose

    1 day

  • salivary cortisol

    1 day

  • Blood concentration of tryptophan in relation to other large neutral amino acids

    1 day

Study Arms (3)

Dietary supplement: high-protein breakfast

ACTIVE COMPARATOR

high-protein juice

Dietary Supplement: Breakfast juice

Dietary supplement: high-carbohydrate breakfast

ACTIVE COMPARATOR

high-carbohydrate juice

Dietary Supplement: Breakfast juice

Dietary supplement: low energy breakfast

PLACEBO COMPARATOR

low-calorie juice

Dietary Supplement: Breakfast juice

Interventions

Breakfast juiceDIETARY_SUPPLEMENT

single dose (300 ml) in the morning of study day, 3 separate sessions (high-protein vs. high-carbohydrate vs. low-calorie juice), total duration 3 weeks

Dietary supplement: high-carbohydrate breakfastDietary supplement: high-protein breakfastDietary supplement: low energy breakfast

Eligibility Criteria

Age22 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • eats usually breakfast
  • use computer mouse with right hand
  • normal sleep-wake rhythm between 9 pm and 8 am
  • in females hormonal contraception

You may not qualify if:

  • gastrointestinal disease, diabetes or any other significant major medical morbidity
  • milk allergy
  • lactose intolerance
  • smoking
  • excess use of alcohol, coffee, tea, cola drinks (\> 10 doses/day)
  • pregnancy and breast feeding
  • no medication or dietary supplements influencing measured responses
  • BMI \> 30 kg/m2 or \< 18 kg/m2

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Helsinki, Institute of Biomedicine

Helsinki, 00014, Finland

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator, postdoctoral reseacher, authorized nutritionist

Study Record Dates

First Submitted

March 14, 2012

First Posted

March 15, 2012

Study Start

September 1, 2011

Primary Completion

April 1, 2012

Study Completion

March 1, 2013

Last Updated

March 6, 2013

Record last verified: 2013-03

Locations