Exercise-induced immunosuppression in adolescent athletes during periods of high-intensity training, particularly immune homeostasis disruption, reduced mucosal immune protection, inflammatory and oxidative stress responses, altered T-cell balance, gut microbiome changes, and increased susceptibility to upper respiratory tract infections. Other
Conditions
Interventions
Participants were randomly allocated in a 1:1 ratio to either the high-polyphenol dietary intervention group or the placebo group. Randomisation was stratified by sex, sport discipline, and baseline i
Sponsors
Chizhou University
Eligibility
Sex/Gender
All
Age
15 Years to 17 Years
Inclusion criteria
Inclusion criteria: Adolescent athletes aged 15–17 years who met all of the following criteria: 1. At least 3 years of systematic training experience 2. Participation in provincial-level competition within the previous 12 months 3. Weekly training volume of =10 hours 4. Tanner stage III–V pubertal development
Exclusion criteria
Exclusion criteria: 1. An acute infection within the previous 4 weeks 2. Chronic inflammatory or autoimmune disease 3. Regular medication or supplement use that could affect immune function 4. A history of overtraining syndrome 5. A musculoskeletal injury that prevented normal training
Countries
China
Contacts
Public ContactLei He
Outcome results
None listed