Development and Strategic Research of Practical Applications in Sports Nutrition
16 mai 2026 mis à jour par: Yi-Ju Hsu, National Taiwan Sport University
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.
Aperçu de l'étude
Statut
Pas encore de recrutement
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Interventionnel
Inscription (Estimé)
50
Phase
- N'est pas applicable
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Coordonnées de l'étude
- Nom: Yi-Ju Hsu
- Numéro de téléphone: +886-3-328-3201 #2430
- E-mail: ruby780202@ntsu.edu.tw
Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
Accepte les volontaires sains
Oui
La description
Inclusion Criteria:
- 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.
Exclusion Criteria:
- 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.
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Dairy intervention group
An 8-week high-protein, high-calcium, and vitamin D-enriched dairy intervention.
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An 8-week high-protein, high-calcium, and vitamin D-enriched dairy intervention.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Questionnaire-based subjective assessment
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Participants' subjective physical sensations, post-exercise fatigue, body image perceptions, and product use experience will be assessed using individual items from a self-administered questionnaire developed for this study.
Questionnaire items may include Likert-scale items, categorical response options, and open-ended responses.
Likert-scale items will be reported separately according to their original response scale, with the minimum and maximum values specified for each item.
Categorical items will be reported as the number and percentage of participants selecting each response option.
Open-ended responses will be summarized descriptively.
No overall questionnaire total score will be calculated.
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Handgrip Strength Test
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Participants performed the test in a standing position with their arms naturally hanging down.
They held the handgrip dynamometer with one hand and applied maximal force continuously for at least 3 seconds.
Each hand was tested three times, and the best value was recorded.
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Push-Up Test
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Participants performed the push-up test on an exercise mat, with both hands placed shoulder-width apart to support the body.
The fingers pointed forward, the elbows were fully extended, and the feet were approximately 10 cm apart.
Male participants performed the test with support from the feet, whereas female participants performed the modified version with support from the knees.
Participants were instructed to complete as many repetitions as possible while maintaining proper form.
The test was terminated when the movement no longer met the required standard or could not be continued.
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Curl-Up Test
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Participants lay supine on an exercise mat with both knees bent and feet flat on the floor. They performed curl-ups according to a fixed rhythm. Participants were instructed to complete as many repetitions as possible while maintaining proper form. When a participant failed to perform the movement correctly once, the examiner raised one hand and indicated the number "one." If the participant failed a second time, the examiner indicated the number "two." The test was terminated when the participant failed twice or completed 75 repetitions. If the participant was unable to maintain the required rhythm or perform the movement according to the standard criteria, the test was stopped. |
The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Three-Minute Progressive Step-in-Place Test
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Participants performed step-in-place movements according to the instructions and raised their knees to the designated height. The test lasted for 3 minutes, with an initial cadence of 96 beats per minute, which was progressively increased each minute. During the test, heart rate was recorded using a heart rate monitor before exercise, during exercise, and during the post-exercise recovery period. |
The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Body weight
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Body weight will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported in kilograms (kg).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Body mass index
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Body mass index (BMI) will be calculated from body weight and height and reported in kilograms per square meter (kg/m^2).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Body fat percentage
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Body fat percentage will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported as a percentage (%).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Fat mass
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Fat mass will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported in kilograms (kg).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Skeletal muscle mass
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Skeletal muscle mass will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported in kilograms (kg).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Skeletal muscle percentage
Délai: 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 will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported as a percentage (%).
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Waist-to-hip ratio
Délai: The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Waist-to-hip ratio will be measured using the InBody 570 bioelectrical impedance analyzer (InBody, Seoul, South Korea) and reported as a ratio.
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The testing time points are set as follows: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Les enquêteurs
- Chercheur principal: Yi-Ju Hsu, Professor, National Taiwan Sport University
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Estimé)
1 juin 2026
Achèvement primaire (Estimé)
1 septembre 2026
Achèvement de l'étude (Estimé)
1 septembre 2026
Dates d'inscription aux études
Première soumission
8 mai 2026
Première soumission répondant aux critères de contrôle qualité
16 mai 2026
Première publication (Réel)
20 mai 2026
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
20 mai 2026
Dernière mise à jour soumise répondant aux critères de contrôle qualité
16 mai 2026
Dernière vérification
1 mai 2026
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- NTSUIRB-115-010
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Non
Étudie un produit d'appareil réglementé par la FDA américaine
Non
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .