Actively Recruiting
The Effect of Lemongrass on Aerobic Performance and Sexual Wellbeing Following High-Intensity Interval Training in Males
Led by Northumbria University · Updated on 2026-04-13
40
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
Sponsors
N
Northumbria University
Lead Sponsor
M
Mibelle Group Biochemistry
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are studying the effects of lemongrass extract on aerobic training outcomes and sexual wellness in males aged 25 to 60 years. This randomized, double-blind, placebo-controlled trial aims to assess how a 6-week high-intensity interval training program combined with either lemongrass extract or a placebo affects aerobic capacity and sexual health. Participants will be randomly assigned to receive either 200 mg of lemongrass extract tablets or placebo tablets daily during the 6-week training. The training consists of three weekly sessions involving repeated high-intensity cycling intervals. The study includes multiple visits for familiarization, baseline testing, supervised training sessions, and post-intervention testing. Throughout the study, participants will undergo fitness tests, blood sampling, and complete questionnaires about sexual wellbeing. Key measures include aerobic capacity, blood lactate levels, heart rate, and serum analysis. After the final training session, participants will be followed up by phone to monitor any adverse effects, with total involvement spanning about eight weeks.
CONDITIONS
Brief Title
The Effect of Lemongrass on Aerobic Performance
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age 40 and 60 years
- Body Mass Index (BMI) 19 and 35 kg/m2
- Willingness and ability to comply with the protocol in the opinion of the Investigator
- Judged by the Investigator to be in good health as assessed by a health screening questionnaire
- Currently identifies as the same biological sex as at birth
- Physical activity status between sedentary to moderately trained (meeting WHO guidelines for adults)
- Blood pressure < 140/90 mmHg
You will not qualify if you...
- History of heart disease
- Any disease interfering with nutrient absorption (e.g., Crohn's disease, celiac disease)
- Recent musculoskeletal or soft tissue injury within the last 3 months
- Habitual use of antihypertensive or antidiabetic medication or medications affecting study participation
- Alcohol intake greater than 21 units per week
- Change in body weight of more than 3 kg in the month before the study
- Currently following a weight-loss or weight-gain program
- Known bleeding disorder or reaction to blood sample withdrawal
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - Up to 2 weeks
Participants are screened for eligibility to participate in the trial.
2 visits (pre-screening and familiarisation)
Duration - 1 day
Participants complete baseline measurements including sexual wellbeing questionnaires, blood sampling, and exercise testing to determine aerobic capacity and performance.
1 visit (in-person)
Duration - 6 weeks
Participants consume daily capsules of either lemongrass extract or placebo while completing high-intensity interval training sessions three times per week for six weeks.
18 training visits (3 visits per week)
Duration - 1 day
Participants repeat baseline assessments including exercise testing, blood sampling, and questionnaires within 48 hours after the final training session.
1 visit (in-person)
Duration - Within 7 days after final visit
Participants receive a follow-up telephone call within 7 days to check for any adverse effects from participation.
1 telephone call
Trial Site Locations
Total: 1 location
1
Northumbria University
Newcastle upon Tyne, United Kingdom
Actively Recruiting
Research Team
E
Emma Squires, Dr
G
Gill Drinkald
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
BASIC_SCIENCE
Number of Arms
2
Similar Trials
Frequently Asked Questions
Have more questions? Get in touch with our team for quick support
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here