Development and Strategic Research of Practical Applications in Sports Nutrition

Обзор

This study evaluates the practical feasibility and potential effects of an 8-week dairy product intervention in physically active adults aged 18-39 years. Participants will consume a dairy product enriched with high protein, calcium, and vitamin D under real-life conditions. Assessments will be conducted before the intervention, after 4 weeks, and after 8 weeks, including subjective perception questionnaires, body composition analysis, and functional physical performance tests. The study aims to examine changes in physical status, functional capacity, and user experience during continuous product use.

Подробное описание

With increasing awareness of regular exercise and health promotion, sports nutrition products have become a common supplementation choice among physically active populations. In real-world settings, these products are typically consumed continuously as part of daily life. Evaluating changes in physical status, functional physical performance, and users' subjective perceptions during actual use therefore requires research designs that closely reflect everyday living conditions.

This study recruits physically active adults aged 18-39 years and conducts an 8-week intervention involving the consumption of a dairy product enriched with high protein, calcium, and vitamin D. A pre-, mid-, and post-intervention design is employed, integrating subjective perception questionnaires, body composition analysis, and functional physical performance assessments to evaluate changes in physical status, functional capacity, and subjective experiences throughout the intervention period. Through this multi-dimensional evaluation approach, the study aims to examine the practical feasibility and application value of the product in real-life settings and to provide evidence to support sports nutrition practice and future research.

Вмешательства

• Пищевая добавка Dairy intervention
  An 8-week high-protein, high-calcium, and vitamin D-enriched dairy intervention.

Первичные конечные точки

• Questionnaire-based subjective assessment [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Handgrip Strength Test [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Push-Up Test [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Curl-Up Test [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Three-Minute Progressive Step-in-Place Test [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]

Вторичные конечные точки (7)

• Body weight [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Body mass index [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Body fat percentage [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Fat mass [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Skeletal muscle mass [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Skeletal muscle percentage [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]
• Waist-to-hip ratio [Срок оценки: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.]

Критерии участия

Критерии включения

• Aged 18-39 years.
• Have regular exercise habits, defined as exercising at least three times per week, with each session lasting no less than 30 minutes. Exercise intensity should reach a heart rate of approximately ≥130 beats/min or a perceived intensity characterized by noticeable breathlessness and sweating.
• Preferably, at least one exercise session per week should include resistance training.
• Participants must be able to consume dairy products and have no lactose intolerance.

Критерии исключения

• Individuals with lactose intolerance or an allergy to dairy products.
• Individuals who are pregnant, planning to become pregnant, or breastfeeding.
• Individuals with a smoking habit.
• Individuals diagnosed by a physician with cardiovascular disease, hypertension, metabolic disease, asthma, or kidney disease.
• Individuals with a body mass index (BMI) ≥27.
• Individuals who have experienced limb or neuromuscular exercise-related injuries within the past 6 months that prevent them from engaging in regular exercise.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Не применимо

Модель

Одна группа

Маскирование

Открытое

Основная цель

Фундаментальное исследование

Центры проведения

Список центров уточняется — проверьте первичный протокол.

Идентификаторы

NCT: NCT07598786 · NTSUIRB-115-010

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

Открыть это исследование на ClinicalTrials.gov ↗