An interventional study of Unstable Resistance Training Group and Traditional Resistance Training in Training, Male and Athletes, sponsored by Richen Sun. Completed at 1 site in China. Open to male participants, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-10.
Sponsored by Richen Sun · Not applicable, Interventional, and Treatment
This experiment aims to investigate the effects of unstable resistance training on the dynamic balance ability and rapid directional change mobility of college basketball majors, while comparing it with traditional resistance training to analyze the statistical differences between the two in enhancing the dynamic balance ability and rapid directional change mobility of the majors-Parazacco spilurus subsp. spilurus-and to explore the underlying reasons, thereby opening new research avenues for improving the dynamic balance ability and rapid directional change mobility of college majors.
All participants completed a 12-week training program, training three times per week with at least a 48-hour interval between consecutive training sessions. Depending on their group assignment, participants performed either unstable resistance training (experimental group) or traditional resistance training on a stable surface (control group). Both groups followed the same training frequency, training volume, exercise sequence, and rest intervals between sets; the only difference was the training surface. During training, the experimental group used unstable equipment such as BOSU balls, balance pads, and Swiss balls, while the control group performed the corresponding exercises on a stable floor. All training sessions were uniformly supervised by researchers to ensure proper form and training adherence.
Each training session began with a standardized warm-up, including 5 minutes of light jogging and dynamic stretching, followed by exercise-specific warm-up movements. Prior to the formal training, participants completed one set of adaptation exercises at approximately 50% of the formal training load. Rest periods between exercises were 30 seconds, while rest periods between sets were controlled at 45-60 seconds depending on the training phase.
The experimental group's training program was divided into three cycles. Weeks 1 through 4 constituted the basic adaptation phase, with training consisting of BOSU ball elbow plank (40 s × 4 sets), squats on a balance pad (10 reps × 4 sets), back-against-Swiss-ball squats with ball between the knees (40 s × 4 sets), and swan-pose balance on the BOSU ball (30 s × 4 sets), with 45 s of rest between sets. Weeks 5 through 8 constitute the enhancement phase, with training consisting of weighted squats on a balance pad (15 reps × 4 sets), weighted deadlifts on a balance pad (10 reps × 4 sets), alternating lunges on a BOSU ball (15 reps × 4 sets), and medicine ball lunge twists with toss and catch (with the front leg on the BOSU ball) (12 reps × 4 sets), with a 45-second rest between sets. Weeks 9 through 12 constitute the consolidation phase, with training consisting of weighted single-leg deadlifts on a balance pad (12 reps × 4 sets), weighted crunches on a BOSU ball (12 reps × 4 sets), weighted Russian twists on the BOSU ball (12 reps × 4 sets), and weighted Bulgarian split squats on the BOSU ball (12 reps × 4 sets), with 60 s of rest between sets.
The control group underwent traditional resistance training on a stable surface, with the same training cycle and training volume as the experimental group. Weeks 1 through 4 consisted of elbow plank (40 s × 4 sets), single-leg lifts on a flat surface (10 reps × 4 sets), static squats with a ball held against a wall (40 s × 4 sets), and swan pose balance on the floor (30 s × 4 sets); Weeks 5 through 8: squats (15 reps × 4 sets), weighted single-leg lifts (10 reps × 4 sets), weighted alternating lunges (15 reps × 4 sets), and medicine ball lunge twists with toss and catch (12 reps × 4 sets); Weeks 9 through 12 consisted of weighted squats (12 reps × 4 sets), weighted crunches (12 reps × 4 sets), weighted Russian twists (12 reps × 4 sets), and weighted Bulgarian split squats (12 reps × 4 sets), with rest intervals of 45 s and 60 s between sets, respectively. The experimental instruments and their models used during the experiment were as follows: stopwatch (PC2810, China), measuring tape (JGW-5m, China) , a whistle (PE-001, China), marker cones (KS-TC23, China), a Y Balance Test Kit™ (USA), a BOSU ball (SH-BOSU58, China), a balance mat (SH-BP34, China), 5 kg dumbbells (SH-DB5, China), a 5 kg medicine ball (SH-MB5, China), barbell plates (SH-WP5, China), and 65 cm Swiss balls (SH-GB65, China).
This is the only study on the registry with Richen Sun as lead sponsor.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Unstable Resistance Training Intervention. The training program primarily consists of unstable resistance squats and unstable planks. Depending on the participants' fitness levels and safety considerations, the program is supplemented with auxiliary exercises and sport-specific warm-ups. During training, relevant information such as compliance, number of sets, number of repetitions, subjective effort perception, attendance, and adverse events is recorded.
Behavioral: Unstable Resistance Training Group
Traditional resistance training. This primarily involves exercises such as squats and planks, without the use of equipment like stability balls that promote instability.
Behavioral: Traditional Resistance Training
Unstable Resistance Training Intervention. The training program primarily consists of unstable resistance squats and unstable planks. Depending on the participants' fitness levels and safety considerations, the program is supplemented with auxiliary exercises and sport-specific warm-ups. During training, relevant information such as compliance, number of sets, number of repetitions, subjective effort perception, attendance, and adverse events is recorded.
Traditional resistance training. This primarily involves exercises such as squats and planks, without the use of equipment like stability balls that promote instability.
Change from baseline in normalized Y-Balance Test composite score after 12 weeks of training
The Y-Balance Test will be used to evaluate lower-limb dynamic balance. Reach distances in the anterior, posteromedial, and posterolateral directions will be measured for both the left and right limbs. All reach distances will be normalized to limb length, and a composite score will be calculated for each limb. The primary reported value will be the change in normalized composite score from baseline to 12 weeks. Higher values represent better dynamic balance ability.
Time frame: Day 0, Day 74
Change from baseline in Illinois Agility Test completion time after 12 weeks of training
The Illinois Agility Test will be used to assess change-of-direction speed and agility performance. Participants will complete the standardized Illinois Agility Test course consisting of straight-line sprinting and multiple changes of direction around cones. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better change-of-direction performance.
Time frame: Day 0, Day 74
Change from baseline in Pro Agility Test completion time after 12 weeks of training
The Pro Agility Test (5-10-5 shuttle run) will be used to assess multidirectional change-of-direction speed and agility. Participants will sprint 5 m to one side, change direction to sprint 10 m in the opposite direction, and then change direction again to sprint 5 m back through the starting line. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better change-of-direction performance.
Time frame: Day 0, Day 74
Change from baseline in Nebraska Agility Test completion time after 12 weeks of training
The Nebraska Agility Test will be used to assess multidirectional agility, change-of-direction speed, and body control. Participants will complete the standardized Nebraska Agility Test course, which includes sprinting, lateral shuffling, backward running, turning, and rapid directional changes around designated cones. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better agility and change-of-direction performance.
Time frame: Day 0, Day 74
Change from baseline in Three-Second Zone Multi-directional Movement Test completion time after 12 weeks of training
The Three-Second Zone Multi-directional Movement Test will be used to assess basketball-specific multidirectional movement ability, including sprinting, lateral shuffling, backward running, and rapid changes of direction. Participants will complete the standardized movement course within the basketball three-second zone. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better multidirectional movement and change-of-direction performance.
Time frame: Day 0, Day 74
Change from baseline in T-Test completion time after 12 weeks of training
The T-Test will be used to assess agility, multidirectional movement, and change-of-direction speed. Participants will complete the standardized T-Test course, which includes forward sprinting, lateral shuffling to both directions, and backward running. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better agility and change-of-direction performance.
Time frame: Day 0, Day 74
Plan to share: No — Due to the need to protect the privacy of the study participants, the experimental data will not be made public; however, if necessary, please contact the author for reasonable use.
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