The goal of this clinical trial is to learn how two different velocity loss thresholds (15% and 30%) during bodyweight squats affect strength and endurance in non-athletic young women aged 18-25 years.
The main questions it aims to answer are:
Does a lower velocity loss threshold (15%) during bodyweight squats improve lower-limb strength? Does a higher velocity loss threshold (30%) during bodyweight squats improve muscular endurance? Researchers will compare the two groups (15% vs. 30% velocity loss) to see if one approach works better for strength and endurance.
Participants will:
Perform bodyweight squats three times per week for six weeks. Be randomly assigned to either the 15% or 30% velocity loss group. Complete strength and endurance tests before and after the program
Female participants
18-25 Years
Body Mass Index less than 30 kg/m²
Low physical activity level
Recent Cardiovascular Disease
Current Patellar Injury
Recent Musculoskeletal Injuries
Current Pregnancy or Postpartum Period within the last 6 months
Parallel
Body-weight squat training (15% velocity loss threshold)
BehavioralParticipants will perform supervised body-weight squat training using an intra-set velocity loss threshold of 15%. Velocity loss will be monitored using standardized metronome cadence as a proxy for movement velocity. Training frequency, volume, and progression will be consistent across groups except for the velocity loss threshold.
Body-weight squat training (30% velocity loss threshold)
BehavioralParticipants will perform supervised body-weight squat training using an intra-set velocity loss threshold of 30%. Velocity loss will be monitored using standardized metronome cadence as a proxy for movement velocity. Training frequency, volume, and progression will be consistent across groups except for the velocity loss threshold.
Lower-limb muscular strength
Total number of completed chair stands performed in 30 seconds, measured in repetitions.
Lower-limb muscular endurance
Total time maintaining the wall-sit position, measured in seconds.
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