Integrated Neuromuscular Training Improves Jump Height and Landing Mechanics in Male Volleyball Athletes

Official title

A Study Protocol on Impact of an 8-Week Integrated Neuromuscular Training Program on Anthropometric Profile, Jump-Landing Mechanics, and Vertical Jump Height in Male Volleyball Players

Overview

Background Volleyball is a sport that requires frequent jumping, landing, rapid movements, and changes in direction. During a match, players repeatedly perform actions such as spikes, blocks, and quick defensive movements. Because of these repetitive high-impact movements, volleyball players are at risk of lower-limb injuries, especially to the knees, ankles, and hips. Many injuries occur when athletes land incorrectly after jumping, when muscles are not strong enough, or when the body's balance and coordination are not optimal. Poor movement control during landing can place excessive stress on the joints and surrounding tissues. For this reason, improving the way athletes jump, land, and control their movements is very important for both performance and injury prevention. Purpose of the Study The main purpose of this study was to determine whether an 8-week Integrated Neuromuscular Training program could improve the following aspects in male volleyball athletes: Anthropometric profile, Jump-landing mechanics, Vertical jump height. Male volleyball athletes volunteered to participate in this research. All participants were active players who regularly took part in volleyball training and competitions. Integrated Neuromuscular Training (INT) is a structured exercise approach designed to improve the coordination between the muscular system and the nervous system. In simple terms, it helps the body learn how to move more efficiently, safely, and powerfully. The training program used in this study included a combination of exercises such as strength training to improve muscle power and joint stability, balance and stability exercises to enhance body control, plyometric exercises. This study used a single-blind pretest-posttest design. Pretest: The athletes were evaluated before the training program started. Training period: The participants completed the 8-week Integrated Neuromuscular Training program. Posttest: After the training program, the same measurements were taken again.

Detailed description

Volleyball players frequently perform jumping and landing movements during actions such as spiking, blocking, and serving. Improper landing techniques and weak muscle coordination can increase the risk of injuries, particularly to the knee, ankle, and lower back.

This study aims to determine whether an 8-week Integrated Neuromuscular Training (INT) program can improve:

Body measurements such as weight and muscle composition Jumping ability (vertical jump height) Landing technique and movement control

Improving these factors may help athletes perform better and reduce the risk of injury. Integrated Neuromuscular Training combines several types of exercises designed to improve how muscles and the nervous system work together. The training program includes Strength exercises, balance training, Plyometric exercises, Coordination and agility drills. Participants in this study are:

Male volleyball athletes, physically active and currently involved in volleyball training, Free from serious injuries that prevent exercise participation. The exercises are similar to normal volleyball training activities, so risks are minimal.

Possible minor risks like temporary muscle soreness, mild fatigue. To reduce risks all exercises will be supervised by trained professionals, proper warm-up and cool-down routines will be established.

Participants will complete an 8-week training program designed to improve neuromuscular control.

Step 1: Initial Assessment (Pre-Test) of Body composition measurements, Vertical jump height, Jump and landing movement analysis.

Step 2: Training Program (8 Weeks)

Participants will perform the Integrated Neuromuscular Training program several times per week under supervision. The training will focus on improving:

Muscle strength, Balance and coordination, Proper jump and landing technique. Step 3: Final Assessment (Post-Test) After completing the 8-week training program, the same tests will be repeated to determine whether there were improvements in Body composition, Jump height and Landing mechanics.

The results of this study may help:

Volleyball players improve performance safely Physiotherapists and sports trainers develop better training programs Coaches design safer conditioning programs

Interventions

• Other Integrated Neuromuscular Training
  1. Training Frequency and Duration Program duration: 8 weeks Training frequency: 3 sessions per week Session duration: 45-60 minutes per session Total sessions: Approximately 24 sessions 2. Structure of Each Training Session Dynamic Warm-Up (10-12 minutes) Balance and Stability Training (8-10 minutes) Strength Training (10-15 minutes) Plyometric Training (10-15 minutes) Agility and Coordination Training (8-10 minutes) Cool-Down and Flexibility (5-8 minutes)
• Other Traditional Volleyball training
  Training Structure Duration: 8 weeks Frequency: 3 sessions per week Session duration: 60 minutes Total sessions: 24 sessions Session Components 1. Warm-Up (10-12 minutes) 2. Volleyball Technical Skill Training (20-25 minutes) 3. Tactical and Game-Based Training (15-20 minutes) 4. General Physical Conditioning (10-12 minutes) 5. Cool-Down (5-8 minutes)

Primary outcome measures

• Body Weight [Time frame: From enrollment to the end of treatment at 8 weeks]
• Landing Mechanics [Time frame: From enrollment to the end of treatment at 8 weeks]
• Height [Time frame: From enrollment to the end of treatment at 8 weeks]
• Body Mass Index [Time frame: From enrollment to the end of treatment at 8 weeks]
• Body Fat Percentage (%) [Time frame: From enrollment to the end of treatment at 8 weeks]
• Lean Mass Percentage (%) [Time frame: From enrollment to the end of treatment at 8 weeks]
• Total Body Water (%) [Time frame: From enrollment to the end of treatment at 8 weeks]

Secondary outcome measures (1)

• Jump Height [Time frame: From enrollment to the end of treatment at 8 weeks]

Eligibility criteria

Inclusion criteria

• subjects with one year of playing experience
• least Subjects training twice per week

Exclusion criteria

• Any previous history of lower limb injury in the past 6 months
• Any surgery performed in the lower extremity
• Other vestibular and neurological disorders

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation

Randomized

Model

Parallel assignment

Masking

Single blind

Primary purpose

Prevention

Study locations

Malaysia · 1 center

• University volleyball Club — Seremban

Identifiers

NCT: NCT07485348 · INTIIU/FHLSRCBPHTI1NY12025/007

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗