Effects of Multi-joint Eccentric Potentiation Maximal Contractions on Muscle Function
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 发起方
- 试验地点
- 1
- 主要终点
- Vertical Jump
研究概览
简要总结
The purpose of this study is to examine the potentiation effects of 2 sets of multi-joint eccentric overload maximal contractions on muscle function.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Single (Investigator)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18 - 30 years old
- •strength train lower body 1-3 times per week
排除标准
- •lower body surgery or injury in the last 12 months
- •have any neuromuscular disease
- •height >76 inches tall
- •height <54 inches tall
- •eccentric strength greater than 725 pounds
- •pregnant or plan to be pregnant in the duration of the protocol
- •don't do resistance exercise at least once per week
- •perform intense cardio or strength training >4 days per week
- •Present with any other significant comorbid conditions that would impair the ability to participate in the exercise-based testing
- •Inclusion criteria:
- •18 - 30 years old
- •strength train lower body 1-3 times per week
研究组 & 干预措施
Cycling exercise
Cycling on a cycle ergometer instead of doing the experimental eccentric exercise.
干预措施: Cycle ergometer (Other)
Eccentric exercise
Perform 2 sets of maximal eccentric contractions as the single session exercise intervention.
干预措施: Eccentric Exercise (Other)
结局指标
主要结局
Vertical Jump
时间窗: 20 minutes post intervention
3 countermovement vertical jumps, with 30 seconds of rest between attempts
Isokinetic eccentric maximal strength
时间窗: 20 minutes post intervention
Maximal eccentric strength on the Eccentron machine. 2 repetitions per time point
Isokinetic eccentric maximal strength
时间窗: Baseline (pretest)
Maximal eccentric strength on the Eccentron machine. 2 repetitions per time point
Vertical Jump
时间窗: Baseline (pretest)
3 countermovement vertical jumps, with 30 seconds of rest between attempts
Vertical Jump
时间窗: Immediately post intervention
3 countermovement vertical jumps, with 30 seconds of rest between attempts
Vertical Jump
时间窗: 12 minutes post intervention
3 countermovement vertical jumps, with 30 seconds of rest between attempts
Isokinetic eccentric maximal strength
时间窗: Immediately post intervention
Maximal eccentric strength on the Eccentron machine. 2 repetitions per time point
Isokinetic eccentric maximal strength
时间窗: 12 minutes post intervention
Maximal eccentric strength on the Eccentron machine. 2 repetitions per time point
次要结局
未报告次要终点
研究者
Brennan Thompson
Associate Professor
Utah State University