Assessment of the Acute Effect of Cycling Practice in Lumbar and Thigh Muscles
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- Maximal Radial Displacement (Dm)
研究概览
简要总结
Introduction: Cycling represents a very important level of practice, being among the most practiced sports in Spain. As in any other sport discipline, its practice is associated with the appearance of overloads and sports injuries. Specifically, the 2 most affected areas are the lumbar and knee areas, with an annual prevalence of 58% and 36%, respectively. There is no clear hypothesis to explain the low back pain associated with the practice of cycling, but several authors agree that it may be due to holding an inverted posture of the rachis and the characteristics associated with this sport: long duration, static posture, high intensities, vibrations generated by the terrain, and so forth. The project proposes to analyze the acute effect of a long-lasting bicycle trip (3 hours) on the muscles involved in low back and knee pain, see, lumbar paravertebral, quadriceps and hamstrings, by means of tensiomyography (TMG).
Objectives: the main objective of this study is to evaluate the behavior of the mechanical characteristics of the lower back and thigh muscles, by means of tensiomyography, in amateur cyclists after an acute effort on road and mountain bikes, and to study their possible relationship with low back pain (LBP).
详细描述
A crossover randomized controlled trial. The participation in the study requires only 2 assistances to the data takings that will be developed in the training laboratory of the Faculty of Sciences of Physical Activity and Sport of the European University. 40 amateur cyclists will be randomly assigned to carry out each (2) conditions of intervention: a road bike time trial (CA) and a mountain bike time trial (MT) separated by 7 days washout. *Randomization marks the order in which participants are subjected to an intervention condition or other.
These sessions will begin with an initial assessment, which will be carried out: an anthropometric assessment (height and weight), followed to an evaluation of the tensiomyographic variable maximal radial displacement (Dm) over the thigh muscles: vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), biceps femoris (BF), and erector spinae (EE) at the lumbar level, before and after an acute effort (> 3 hours) in CA and MT bicycle. Respect to pain assessment, it will be measured the intensity pain perception on the lumbar region (LBPP) by using a 0 to 10 numeric pain-rating scale; the pressure pain threshold (PPT) with a manual mechanical algometer; and the functional disability caused by LBP through the Roland-Morris Questionnaire (RMQ).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Aged between 18 and 55 years.
- •Minimum experience in the practice of cycling over 3 years
- •Accumulate at least 200 hours of training each year.
- •Not having received specific treatment in the musculature evaluated in the last 4 weeks, or being subjected to any treatment at present.
- •No pathology diagnosed in the anatomical regions interested in the study (lumbar, thigh, hip or knee).
- •Sign the informed consent.
排除标准
- •Have had strenuous exercise in the previous 48 hours
- •Having taken energy drinks in the last 48 hours
- •Have ingested alcohol or caffeine in the 3 hours prior to taking data.
研究组 & 干预措施
Road Cycling first, then Mountain Biking
First Intervention (3 hours: Road cycling), followed by a 7 days washout, and the second Intervention (3 hours: Mountain Biking).
干预措施: 3 hours Road Cycling Time Trial (Other)
Road Cycling first, then Mountain Biking
First Intervention (3 hours: Road cycling), followed by a 7 days washout, and the second Intervention (3 hours: Mountain Biking).
干预措施: 3 hours Mountain Biking Time Trial (Other)
Mountain Biking first, then Road Cycling
First Intervention (3 hours: Mountain Biking), followed by a 7 days washout, and the second Intervention (3 hours: Road cycling).
干预措施: 3 hours Road Cycling Time Trial (Other)
Mountain Biking first, then Road Cycling
First Intervention (3 hours: Mountain Biking), followed by a 7 days washout, and the second Intervention (3 hours: Road cycling).
干预措施: 3 hours Mountain Biking Time Trial (Other)
结局指标
主要结局
Maximal Radial Displacement (Dm)
时间窗: Baseline and after 3 hours
The variable Dm is given by the radial displacement of the muscular belly in a transverse plane, expressed in milimeters (mm) and depends on muscle tone or stiffness. A low Dm is related to a high muscle tone or an excess of stiffness, while a high Dm value indicates a lack of muscle tone or stiffness defect.
Low Back Pain Perception (LBPP)
时间窗: Change between Baseline and 3 hours
This variable records the intensity pain perceived on the lumbar region (LBPP) by using a 0 to 10 numeric pain-rating scale (NPRS). This is an 11-point scale ranging from 0 (no pain) to 10 (worst imaginable pain). The LBPP was measured before and after completing each time trial.
Pressure Pain Threshold (PPT)
时间窗: Baseline and after 3 hours
Measured from 0 to 10kg/cm2 with a manual mechanical algometer (FDK/FDN, Wagner Instruments, 1217 Greenwich, CT 06836), which has bilaterally shown an excellent reliability, reproducibility, and sensitivity on the lumbar erector spinae muscles.
次要结局
- Roland-Morris Questionnaire (RMQ)(Baseline)
研究者
Gerson Garrosa Martín
Gerson Garrosa Martín, PhD Candidate
Universidad Europea de Madrid