The Effect of 6 Week Adductor Exercise Programs on Adductor Muscle Function and Performance
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- isometric hip adductor and abductor strength
研究概览
简要总结
This research project will investigate the effects of two 6-week adductor (hip muscle) exercise programmes on adductor muscle function and performance.
Measures of adductor muscle strength and performance (jump height, hopping and sprint) and self reported hip and groin function using a questionnaire will be recorded pre and post a 6-week period. A group of footballers will be recruited and randomly allocated to an intervention or control group. Two different intervention groups will complete two different, six-week adductor exercise programmes in addition to their regular training programme. The exercise programmes will last 15 minutes (approximately) per session, with 3 sessions per week. The control group will continue their regular training programme.
详细描述
Participants will be recruited from the local university sports clubs. Club chairpersons will be asked to send an email to club players. Players interested in participating in the study will be asked to attend a meeting where the study will be explained to them. Those who were interested will then be assessed for inclusion and exclusion criteria.
Group allocation:
A four block randomization method will be used to allocate participants to the Copenhagen adductor exercise protocol or the adduction and abduction partner exercise protocol.
Interventions:
Copenhagen adductor exercise protocol or the adduction and abduction partner exercise.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •free from hip and groin injury in the 6 months prior to the study • currently competing in team sports at least three occasions per week
排除标准
- •history of a hip or groin injury in the 3 months prior to the study
- •a history of involvement in an adductor strengthening, injury prevention programme in the 3 months prior to the study.
研究组 & 干预措施
Copenhagen adductor exercise
The modified Copenhagen adductor exercise consists of 6 levels through which the participant will progress when able to complete one level adequately (able to complete the exercise in the given timeframe with adequate control). The first 5 levels are isometric contractions progressing in difficulty with the 6th level including concentric and eccentric components.
- Participants perform a supported isometric adduction hold off a 30cm support in a short-lever side-lying position. The participants then raise their pelvis from the floor, keeping their lower knee on the ground for support and hold for 20 seconds, repeating it twelve times on each side.
- Participants progressed level 1 by lifting their supporting leg, bringing their knees together and holding position for 20 seconds, repeating it twelve times on each side.
干预措施: Copenhagen adductor exercise (Other)
adduction and abduction partner exercise
Participants are in a sitting position with their knees extended and hips abducted, supporting themselves with their hands behind their trunks, facing each other. For the adduction exercise, the participant will place his feet and lower leg on the outside of his partner's lower legs and feet. He will then adduct his hips, bringing his feet slowly together while his partner slowly resists this movement.
For the abduction exercise, the participant will place his feet and lower legs on the inside of his partner's feet and lower legs. The participant will slowly abduct the hips while the partner resists this movement.
Both exercises are performed over 6 seconds (a three second concentric and three second eccentric contraction) with as maximal effort.
干预措施: The adduction and abduction partner exercise (Other)
结局指标
主要结局
isometric hip adductor and abductor strength
时间窗: Change from baseline after 6 weeks
The maximum isometric hip abductor and adductor strength is assessed with the participant being tested was in supine position, with the test-leg placed at the end of the examination table, and the opposite leg slightly flexed. The dynamometer is placed 5 cm proximal to the proximal edge of the lateral mal¬leolus or 5 cm proximal to the proximal edge of the medial malleolus for hip abduction and adduction, respectively. The dynamometer is externally fix¬ated by the tester's hand/arm placed between the wall and the dynamometer. Participants are initially given two warm up trials of each test of the hip abductors and adductors at 50% and 100% of maximal voluntary isometric force (MVC), followed by three valid MVC trials at the rate of one trial every 60 s
Hop test function
时间窗: Change from baseline after 6 weeks
Single leg hop - the participant will hop as far forwards as possible. Triple hop for distance. Participants will be asked to hop forward three times in a row as far as possible. Crossover hop test. A 3 metre strip of tape will be place on the ground in front of the participants. Participants will be asked to stand on one foot with the tape to the outside of their stance foot. They will then be asked to hop forward three times in a row as far as possible while alternately crossing over the tape and then landing on the same foot, and holding this position for two seconds. Side hop test. Participants will be asked to jump from side to side as many times as possible in 30 seconds without touching the tape. The number of successful jumps will be recorded.
次要结局
- Sprint performance(Change from baseline after 6 weeks)
研究者
Enda Whyte
Assistant professor
Dublin City University