NCT07117617

Effects of Inertial Load of Water on Lower Limb Joint Moments During Landing and Cutting

Effects of Inertial Load of Water on Lower Extremity Joint Moments During Landing and Cutting

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 26 (actual)
• Sponsor: Ja Yeon Lee · Academic / Other
• Sex: Male
• Age: 20 Years – 29 Years
• Healthy volunteers: Accepted

Summary

This study examined whether a 10-week dynamic stability training program using water-filled equipment could improve joint control and postural stability during landing and directional changes. Twenty-six healthy young men were randomly assigned to either a training group, which performed water-based exercises, or a control group, which did not receive any intervention. All participants performed a landing followed by a 90-degree cutting task, and joint moment data were collected using a 3D motion capture system. The study aimed to determine if water-based perturbation training enhances neuromuscular control and reduces biomechanical stress during complex movements.

Detailed description

The purpose of this study was to investigate the effects of dynamic stability training using the inertial load of water on lower limb joint moments and postural control during landing and subsequent 90-degree directional changes. Rapid deceleration and cutting movements are known to generate high biomechanical loads on the lower extremities, especially during transitions from the non-dominant to dominant leg. Enhancing neuromuscular control in these situations may help reduce injury risk and improve movement efficiency. A total of 26 healthy male participants in their 20s were recruited and randomly assigned to either an experimental group (n = 13) or a control group (n = 13). The experimental group completed a 10-week training program using water-filled bags designed to induce dynamic perturbation and promote balance and joint control. The control group did not undergo any training intervention during the same period. All participants performed a standardized movement task consisting of single-leg landing followed by a 90-degree cutting maneuver. A 3D motion capture system and force plates were used to collect data on joint moments and biomechanical responses during both the landing and change-of-direction phases. Pre- and post-intervention data were compared to determine the effectiveness of the water-based perturbation training. This study was designed to evaluate whether unstable load training can serve as an effective method for improving lower extremity biomechanics and dynamic stability in young adults.

Conditions

• Healthy Volunteers
• Physical Fitness
• Lower Extremity

Interventions

Type	Name	Description
BEHAVIORAL	Dynamic Stability Training with Inertial load of water	A 10-week training program using AquaBag to enhance lower limb joint stability and neuromuscular coordination. Exercises included dynamic stepping, lunging, and landing tasks under water load-induced perturbations.

Timeline

• Start date: 2025-04-14
• Primary completion: 2025-06-30
• Completion: 2025-07-14
• First posted: 2025-08-12
• Last updated: 2025-08-14

Locations

1 site across 1 country: South Korea