None
Conditions
Interventions
constant cycling group:77.5%HRpeak constant load 1 hour bicycle test
Constant swimming group:77.5%HRpeak constant load 1 hour breaststroke exercise test
Sponsors
Tianjin University of Sport
Eligibility
Sex/Gender
All
Age
18 Years to 25 Years
Inclusion criteria
Inclusion criteria: Amateur swimmer 1) Subjects share accommodation; 2) The system swimming training period is not less than 8 years; 3) Swimming level 2 and above; 4) Swimming training time is not less than 8 hours per week; 5) Agree to participate in the study and sign the informed consent. Swimmer 1) Subjects share accommodation; 2) Love swimming, swimming experience for more than two years, but did not participate in systematic swimming training; 3) No sports grade; 4) Swim 3-4 hours per week. 5) Agree to participate in the study and sign the informed consent.
Exclusion criteria
Exclusion criteria: 1) autoimmune system, cardiovascular system, nervous system and other diseases affecting sports performance; 2) Have undergone dental orthodontics within the last 1 month; 3) Sports injury in the past 3 months, and not fully recovered, unable to participate in special training; 4) Antibiotics, probiotics, prebiotics, synbiotics, and sports nutrition supplements were used within 3 months before sampling
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Shannon index;simpson index;Observed species; | — |
Secondary
| Measure | Time frame |
|---|---|
| blood lactic acid;heart rate; | — |
Countries
China
Contacts
Public ContactPeng Liao
Tianjin University of Sport
Outcome results
None listed