Effects of Root Extract Ashwagandha (KSM-66) on Physiological Stress, Perception of Recovery and Muscle Strength in Youth Elite Footballers
NCT ID: NCT07343219
Last Updated: 2026-01-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
62 participants
INTERVENTIONAL
2026-01-06
2026-02-18
Brief Summary
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Ashwagandha root extract is increasingly used by athletes, but controlled research in adolescent athletes is limited and the majority of evidence is in an adult population. This study will assess short-term responses in youth players.
Participants will be randomly assigned to take either Ashwagandha root extract or a placebo once daily for six weeks. Players will complete training-based tests, provide saliva samples and complete a short, validated questionnaire on perception of wellness. Any adverse events will be documented and reported.
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Detailed Description
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The researchers are studying Ashwagandha root extract as it is increasingly used by athletes and the general population of varying ages for well-being, performance and recovery purposes, despite a lack of controlled research examining its effects in adolescent athletes. Most existing evidence comes from adult populations, and it remains unclear whether similar physiological and perceptual responses occur in adolescents engaged in structured training.
The main questions the study aims to answer are:
Does taking Ashwagandha root extract change stress levels measured through saliva in youth elite footballers?
Does it affect muscle strength, recovery, sleep, or muscle soreness?
Participants will be randomly assigned to take either Ashwagandha root extract or a placebo once a day for six weeks. During the study, players will complete strength and fitness tests during usual training time, then provide saliva samples afterwards. Short questionnaires will be solicited the day after about how they feel. Any adverse events that occur during the study will be documented and reported.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
BASIC_SCIENCE
TRIPLE
Study Groups
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Ashwagandha root extract
450 mg Ashwagandha root extract
Root extract Ashwagandha
450 mg Ashwagandha root extract
Placebo
450 mg corn starch
Corn Starch
450 mg corn starch
Interventions
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Root extract Ashwagandha
450 mg Ashwagandha root extract
Corn Starch
450 mg corn starch
Eligibility Criteria
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Inclusion Criteria
* Classified as 'healthy' and 'free of disease'
* Actively training with the selected football academy
Exclusion Criteria
* No active use of medication
* No active use of ergogenic aids
* Allergies to nightshades
12 Years
18 Years
MALE
Yes
Sponsors
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Sports Performance and Applied Research in Trials and Analysis
NETWORK
Responsible Party
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Principal Investigators
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Olivia C Coope, PhD
Role: STUDY_DIRECTOR
Blanquerna Institute
Locations
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Fulham Football Club
London, , United Kingdom
Countries
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References
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Bonilla DA, Moreno Y, Gho C, Petro JL, Odriozola-Martinez A, Kreider RB. Effects of Ashwagandha (Withania somnifera) on Physical Performance: Systematic Review and Bayesian Meta-Analysis. J Funct Morphol Kinesiol. 2021 Feb 11;6(1):20. doi: 10.3390/jfmk6010020.
Mishra RK, Trivedi R, Pandya MA. A clinical study of Ashwagandha ghrita and Ashwagandha granules for its Brumhana and Balya effect. Ayu. 2010 Jul;31(3):355-60. doi: 10.4103/0974-8520.77164.
Petroczi A, Naughton DP, Pearce G, Bailey R, Bloodworth A, McNamee M. Nutritional supplement use by elite young UK athletes: fallacies of advice regarding efficacy. J Int Soc Sports Nutr. 2008 Dec 15;5:22. doi: 10.1186/1550-2783-5-22.
Other Identifiers
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20251103
Identifier Type: -
Identifier Source: org_study_id
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