Inadequate Protein Intake at Specific Meals and Functionality in Middle to Older Aged Mexican Adults

This study sought to determine if the inadequate protein intake per meal (defined as eating <30 g protein or 0.4 g protein/kg body mass) at specific meals (breakfast, lunch, dinner) is associated with functionality in middle to older aged Mexican adults. Functionality was evaluated with self-reported questionnaires to assess their functionality score for different activities of daily living.

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Key information

Conditions

Aging

Age range

50 year–95 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Instituto de Ciencias Aplicadas a la Actividad Física y al Deporte

Guadalajara, Jalisco, 44430, Mexico

About this study

Detailed dietary information was obtained for each participant to estimate dietary protein intake per meal (breakfast, lunch, dinner). One meal was considered with inadequate protein intake if its content was <30 g or 0.4 g/kg.

Functionality was assessed with two validated questionnaires. One for instrumental activities of daily living (Lawton) and another for activities of daily living (Barthel). We calculated a score according to each author's scales. This score was divided into three possible groups as "low", "middle", and "high" scores.

To analyze the association between inadequate protein intake per meal and functionality, we used multinomial logistic regression. The outcome variable was functionality ("High" was the reference group, "middle" and "low" scores were considered as impaired functionality), and the predictive variables were inadequate protein intake at breakfast, lunch, and dinner. They were adjusted for age, BMI categories, number of diagnosed diseases, sex, and inadequate protein intake per day (<1.2 g/kg/d).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Subjects able to stand up and walk independently or with walking sticks only.
Subjects able to answer questionnaires independently or with minimum caregivers' assistance.

Exclusion criteria

Subjects reporting any kind of hospitalization within the last year.

Treatment and study plan

No intervention

Other

Cross-sectional

Primary outcomes

Functionality on Instrumental Activities of Daily Living

Time frame: One day

Functionality score for instrumental activities of daily living (assessed with Lawton questionnaire). This instrument assess how well the subject perform some daily activities involving tools (e.g. handling finances, taking medication, using the telephone). The instrument consists on five items for men and eight for women, and each item is coded for 0 or 1 depending on if subjects are capable to successfully complete the activity. Therefore, the score ranges from 0 to 5 in men and 0 to 8 in women, the higher the score, the more functional the subject.
Functionality on Activities of Daily Living

Time frame: One day

Functionality score for activities of daily living (assessed with Barthel questionnaire). This instrument assess how well the subject perform some daily activities (e.g. dressing, using stairs). The instrument consists on ten items for both men and women coded as 0 or multiples of 5 (i.e. 5, 10, 15) depending on if subjects are capable to successfully complete the activity. The score ranges from 0 to 100 for both men and women, the higher the score, the more functional the subject.

Sponsors and collaborators

Lead sponsor

Centro Universitario de Ciencias de la Salud, Mexico

Other

Collaborators

Hospital General de Occidente

Registry information

Important dates

Study start: 2017
Primary completion: 2017
Study completion: 2017
First posted: Feb 19, 2019
Registry last updated: Mar 12, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed