Effect of Unstable Versus Stable Trunk Core Strength Training on Shooting Performance and Holding Stability in Elite 10 m Air Pistol Athletes: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Shooting Performance Score
研究概览
简要总结
This randomized controlled trial aims to compare the effects of unstable versus stable trunk core strength training on shooting performance and postural stability in elite 10 m air pistol athletes. Twenty national-level athletes will be randomly assigned to either an unstable training group or a stable training group for an 8-week intervention. Both groups will perform identical core exercises with matched intensity and volume, differing only in the stability of the training surface.
Shooting performance and gun-holding stability will be assessed using a SCATT system, and postural control will be evaluated using a plantar pressure system. The results of this study may help determine whether unstable core training provides additional benefits for improving shooting accuracy and stability in elite athletes.
详细描述
This study is a randomized controlled trial designed to investigate the effects of unstable versus stable trunk core strength training on shooting performance and postural stability in elite 10 m air pistol athletes.
A total of 20 national-level athletes will be recruited and randomly allocated into two groups: the unstable trunk core strength training (UTCST) group and the stable trunk core strength training (STCST) group. Randomization will be performed using a computer-generated random number table, and allocation will be concealed using sealed opaque envelopes. Outcome assessors will be blinded to group assignments.
Both groups will undergo an 8-week training program with three sessions per week. Each session will last approximately 60 minutes. The UTCST group will perform core strengthening exercises on unstable surfaces such as Swiss balls, BOSU balls, and balance discs, while the STCST group will perform identical exercises on stable surfaces. Training intensity, volume, and progression will be standardized between groups to ensure that surface instability is the only independent variable.
Outcome measures will be assessed at baseline and after the intervention. Shooting performance and gun-holding stability will be evaluated using the SCATT optoelectronic system, including shooting score, aiming time, 10-ring stability, and muzzle movement velocity. Postural stability will be assessed using a plantar pressure measurement system by analyzing center-of-pressure (COP) parameters such as sway area and path length.
Statistical analysis will be conducted using repeated-measures analysis of variance to examine the effects of group, time, and their interaction. A significance level of p < 0.05 will be used.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Single (Outcomes Assessor)
盲法说明
Outcome assessors will be blinded to group allocation. Participants and trainers cannot be blinded due to the nature of the intervention.
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Elite 10 m air pistol athletes with regular training experience
- •Age between 18 and 35 years
- •Minimum of 2 years of systematic shooting training
- •Currently engaged in regular training (≥3 sessions per week)
- •No history of musculoskeletal injury affecting performance in the past 6 months
- •Able to understand and follow study procedures
- •Provided written informed consent
排除标准
- •Current or recent (within 6 months) musculoskeletal injury or pain affecting trunk or upper limb function
- •History of neurological disorders or balance impairment
- •Participation in other structured core strength training programs during the study period
- •Use of medications that may affect neuromuscular function or performance
- •Any medical condition that contraindicates participation in physical training
- •Inability to comply with the study protocol
研究组 & 干预措施
Unstable Trunk Core Strength Training (UTCST)
Participants in this group will perform trunk core strength training on unstable surfaces, including Swiss balls, BOSU balls, and balance discs. The intervention will last for 8 weeks, with three sessions per week, and each session will last approximately 60 minutes. Training intensity, volume, and progression will be standardized across participants.
干预措施: Unstable Trunk Core Strength Training (Behavioral)
Stable Trunk Core Strength Training (STCST)
Participants in this group will perform the same trunk core strength exercises as the experimental group, but on stable surfaces such as the floor or a bench. The training duration, frequency, intensity, and progression will be identical to those of the experimental group to ensure that surface stability is the only variable.
干预措施: Stable Trunk Core Strength Training (Behavioral)
结局指标
主要结局
Shooting Performance Score
时间窗: Baseline and after 8 weeks of intervention
Shooting performance assessed by official 10 m air pistol competition scoring system, expressed as total score (points). Higher scores indicate better performance.
Holding Stability
时间窗: Baseline and after 8 weeks of intervention
Holding stability measured by center of pressure (COP) sway or pistol movement trajectory during aiming phase. Lower values indicate better stability.
次要结局
- Postural Stability(Baseline and after 8 weeks of intervention)
- Core Muscle Strength(Baseline and after 8 weeks of intervention)
- Trunk Muscle Activation (EMG)(Baseline and after 8 weeks of intervention)
- Aiming Stability(Baseline and after 8 weeks of intervention)
- Fatigue Resistance(Baseline and after 8 weeks of intervention)
研究者
Jin Rangxi
Principal Investigator
Shanghai University of Sport