PeptiStrong 与乳清蛋白对老年人肌肉功能的影响
PeptiStrong与低剂量乳清蛋白对比高剂量乳清蛋白单独使用对老年人肌肉功能的影响
Examining the effects of PeptiStrong and protein on muscle function in older adults
研究概览
地位
详细说明
The aim of this study is to compare two protein drinks containing whey protein (derived from milk) in healthy adults aged 60 to 85 years. One group will consume a standard whey protein drink (20g), while the other group will consume a drink with half the total protein dose (10g) made of whey protein and PeptiStrong, a fava bean hydrolysate containing bioactive peptides.
The study will assess whether the lower protein drink containing PeptiStrong will lead to equal or greater improvements than the standard drink in physical function, such as the ability to stand up from a chair, walk at a normal pace, maintain balance, and grip strength. The study will also examine markers related to inflammation, fatigue, and quality of life.
The intended value of this research is to improve understanding of how targeted nutritional strategies may help maintain or improve muscle function in older adults. The findings may help inform future nutritional recommendations and the development of practical dietary interventions aimed at supporting healthy ageing and independence.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
-
-
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Liverpool、英国、L3 3AF
- LJMU, Byrom Street
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Men and women aged 60 to 85 years at the time of enrolment
- Community-dwelling (living independently or with minimal assistance)
- Able to walk independently (with or without a walking aid) and complete simple physical function tests (such as standing up from a chair and walking short distances)
- Willing and able to attend two study visits at the research facility (baseline and end of study)
- Willing and able to consume a protein drink containing whey protein (derived from milk) once daily for 30 days
- Able to understand the study information and provide written informed consent
Exclusion Criteria:
- Any known food allergy or intolerance to fava bean protein or milk protein
- Diagnosed kidney disease or any medical condition where increased protein intake is contraindicated
- Yes to any of the answers on the "Older Adult Functional Assessment Screening Questionnaire"
- Individuals with implanted electronic devices
- Current or recent (within the past 3 months) participation in another clinical research study involving a nutritional or exercise intervention
- Conditions that significantly impair mobility or balance such that safe completion of the physical function tests is not possible
学习计划
研究是如何设计的？
设计细节
- 主要用途：其他
- 分配：非随机化
- 介入模型：并行分配
- 屏蔽：四人间
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：PeptiStrong + whey protein
2.4g PeptiStrong (provides 1.6g protein) + 8.4g of whey protein = 10g total protein |
Fava bean protein hydrolysate containing bioactive peptides mixed with whey protein as dry powder for drinkable protein shake |
|
有源比较器：Whey protein
20g whey protein |
Whey protein as dry powder for drinkable protein shake |
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Hand Grip Strength via hand held dynamometer
大体时间：Baseline to Week 4
|
Change from baseline to end of study in grip strength as assessed via hand held dynamometer |
Baseline to Week 4
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Chair Stand Test - Part of short performance physical battery
大体时间：Baseline to week 4
|
Change from baseline to end of study in physical function assessment via chair stands. This test measures the time taken to complete 5 sit-to-stand repetitions in seconds. A lower time (fewer seconds) = better performance. As part of the full short performance physical battery it is converted to a subscore of 0-4, where a higher score = better performance |
Baseline to week 4
|
|
Gait Speed as part of short performance physical battery
大体时间：Baseline to week 4
|
Change from baseline to end of study in physical function assessment assessed as time to walk a fixed distance in seconds and reporting in meters per second. Higher speeds indicate better performance. This is converted to a subscore of 0-4 within the full short performance physical battery |
Baseline to week 4
|
|
6 Minute Walking Endurance Test
大体时间：Baseline to week 4
|
Change from baseline to end of study in physical function and endurance assessed as the total distance walked in 6 minutes in meters. A greater distance reflects better walking endurance and functional capacity. |
Baseline to week 4
|
|
Balance test as part of short performance physical battery
大体时间：Baseline to week 4
|
Change from baseline to end of study in balance as assessed by the ability to hold three standing positions of increasing difficulty: side-by-side, semi-tandem, and tandem stance in seconds. Higher scores indicate better balance. The overall score is converted to a a sub-score of 0-4 within the full short performance physical battery. |
Baseline to week 4
|
|
Balance assessment via force plates
大体时间：Baseline to week 4
|
Change from baseline to end of study in balance as assessed via force plates |
Baseline to week 4
|
|
Quality of Life via the Sarcopenia Quality of Life (SarQoL®) Questionnaire
大体时间：Baseline to week 4
|
Change from baseline to end of study in quality of life as measured via subjective SarQOL questionnaire. The total score ranges from 0 to 100, with higher scores reflecting a higher quality of life. |
Baseline to week 4
|
|
Fatigue via Multidimensional Fatigue Inventory Questionnaire
大体时间：Baseline to week 4
|
Change from baseline to end of study in self-reported fatigue as assessed via multidimensional fatigue inventory questionnaire. This 20-item questionnaire covers five dimensions: General Fatigue, Physical Fatigue, Mental Fatigue, Reduced Motivation, and Reduced Activity. Each subscale score ranges from 4 to 20, with higher scores indicating greater fatigue |
Baseline to week 4
|
|
C-reactive protein (CRP) via blood test
大体时间：Baseline to week 4
|
Change from baseline to the end of study in inflammatory marker C-reactive protein (CRP) in serum as mg/L |
Baseline to week 4
|
|
Interleukins via blood test
大体时间：Baseline to week 4
|
Change from baseline to the end of study in Interleukin inflammatory markers in serum as pg/mL |
Baseline to week 4
|
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Body composition: Muscle mass and body fat via bioelectrical impedance analysis
大体时间：Baseline to week 4
|
Change from baseline to end of study in muscle mass and body fat as measured by bioelectrical impedance analysis in kilograms and % of total body weight |
Baseline to week 4
|
合作者和调查者
赞助
调查人员
- 首席研究员：Graeme Close, Professor、Liverpool John Moore University
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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