None
Conditions
Interventions
HIIT group:8-week intervention, three sessions per week, each session consisting of four sets of slide-board high-intensity interval training. Each work bout lasted 3 minutes followed by 2 minutes of
LIIT group:8-week intervention, three sessions per week, each session consisting of four sets of slide-board low-intensity interval training. Each work bout lasted 4 minutes followed by 1 minute of re
LIIT+BFR group:8-week intervention, three sessions per week, each session consisting of four sets of slide-board low-intensity interval training combined with blood flow restriction (BFR). Each work b
Sponsors
Shanghai University of Sport
Eligibility
Sex/Gender
All
Age
17 Years to 22 Years
Inclusion criteria
Inclusion criteria: 1.Speed skaters aged 17–22 years; 2.Sports qualification at or above National Level II (including collegiate speed skaters with Level II or higher qualification); 3.Body mass index (BMI) < 30 kg/m^2; (if BMI is slightly higher due to increased muscle mass, eligibility will be determined based on body fat percentage and metabolic indicators;) 4.Resting blood pressure < 140/90 mmHg; (if blood pressure is 130–139/85–89 mmHg, participation requires clearance from a clinical physician;) 5.No history of cardiovascular disease or risk of thrombosis; 6.No history of neuromuscular, hematological, or musculoskeletal disorders, or other chronic diseases that may affect the study; 7.Non-smoker; 8.Voluntary participation with signed informed consent.
Exclusion criteria
Exclusion criteria: 1.Individuals assessed as high risk or unsuitable for aerobic exercise, based on the Physical Activity Readiness Questionnaire (PAR-Q) and the International Physical Activity Questionnaire (IPAQ); 2.Current or recent use of medications or nutritional supplements that may influence study outcomes; 3.Presence of musculoskeletal injuries; 4.History of severe cardiovascular, respiratory, or musculoskeletal disorders; 5.Major surgery or serious injury within the past three months; 6.Refusal to provide written informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Maximal Oxygen Uptake(VO2max);Maximal Power Output(Pmax);Relative Peak Power;Relative Mean Power;Fatigue Index;Numeric Rating Scale (NRS) for pain/discomfort;Blood lactate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Body Weight;Body Mass Index;Skeletal Muscle Mass;Body Fat Mass;Body Fat Percentage;Fat-Free Mass;Relative Peak Torque;Total Work;Countermovement Jump;Squat Jump; | — |
Countries
China
Contacts
Public ContactYouqiang Li
Shanghai University of Sport
Outcome results
None listed