Investigation of the Acute Effects of Distal and Proximal Muscle Fatigue on the Mechanical and Viscoelastic Properties of Lower Extremity, Foot Pressure Distribution, and Balance in Healthy Young Adults
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 2
- 主要终点
- Myotonometric Assesment
研究概览
简要总结
This is a study aiming to investigate the effects of acute muscle fatigue on muscle properties, balance and foot plantar pressure in healthy young adults (having no chronic diseases or orthopaedic diseases and physically active). This study also aims to compare the effects of foot muscle fatigue and hip muscle fatigue on balance and foot plantar pressure.
The exercises for ankle muscle fatigue are heel rise with bending your knee and heel raise without bending your knees.
The exercise for hip muscle fatigue is a single-leg squat. Before and after completing these all exercises, the balance is evaluated with an isokinetic balance device, the foot plantar pressure is evaluated with a pedobarography device and finally, the muscle properties are evaluated with a myotonPro device. All assessment devices are non-invasive.
详细描述
The International Physical Activity Questionnaire (Short form) will be used to assess individuals' physical activity levels. Prior to the distal and proximal fatigue protocols, the participants' maximum isometric muscle forces of the gastrocnemius, soleus, tibialis anterior, rectus femoris, and gluteus maximus muscles will be evaluated using a dynamometer.
Then, the mechanical and viscoelastic properties of these muscles and the iliotibial band will be assessed using the MyotonPro device, participants' static foot pressure on both feet will be evaluated through pedobarography, and individuals' dynamic balance and static balance will be evaluated on one foot using the Technobody isokinetic balance device.
The individuals included in the study will undergo exercises targeting the foot plantar flexor and dorsiflexor muscles on the first day, and exercises targeting the hip flexor and extensor muscles on the second day. The researcher will measure the voluntary maximum isometric muscle strength using a dynamometer,
Heel raise exercises will be performed in 3 sets, with 30 seconds of free walking allowed for rest between sets. Individuals will initially complete 3 sets of this exercise without bending their knees. Then, they will perform the heel raise exercise with bent knees. The researcher will measure the voluntary maximum isometric muscle strength using a dynamometer when the Modified Borg Scale indicates a level of 7 or above. If the muscle strength has decreased to 50% of the initial force, indicating fatigue, the exercise will be terminated.
Second day, a single-leg squat will be performed in 3 sets, with 30 seconds of free walking allowed for rest between sets.The researcher will measure the voluntary maximum isometric muscle strength using a dynamometer when the Modified Borg Scale indicates a level of 7 or above. If the muscle strength has decreased to 50% of the initial force, indicating fatigue, the exercise will be terminated.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- None
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
- •To be a healthy individual in the age range of 18-35,
- •To be willing to participate in the study,
- •To have a minimal active or highly active score on the International Physical Activity Questionnaire (Short Form),
- •To have a body mass index (BMI) of 24.9 kg/m² or lower.
排除标准
- •Having a history of injury and/or surgical operation related to the lower extremity,
- •Having limited mobility in the lower extremity,
- •Having any deformity related to the lower extremity,
- •Having cardiovascular, vestibular, neurological, orthopedic, or skin-related diseases,
- •Having any chronic disease that may affect balance,
- •Having any acute/chronic musculoskeletal pain or systemic pain,
- •Not to have given consent to participate in the study or to wish to withdraw from the study.
结局指标
主要结局
Myotonometric Assesment
时间窗: Day 1 and Day 8
Myotonometeric assessment is a non-invasive and novel method used to characterize the viscoelastic and biomechanical properties of muscles. The MyotonPro (Myoton Ltd, Myoton AS, Estonia) is an objective assessment tool that has been validated for inter-rater and intra-rater reliability, enabling the evaluation of mechanical and viscoelastic properties such as muscle tone, stiffness, and elasticity. The MyotonPro device is positioned perpendicular to the skin surface when the muscles are in a relaxed position. The device's probe applies an initial pressure of approximately 0.18 N to the skin surface, compressing the underlying tissue. Subsequently, a mechanical force of 0.4 N is applied for 15 ms to the compressed tissue beneath the skin.
Isokinetic Balance Assesment
时间窗: Day 1 and Day 8
The TecnoBody Prokin PK 252 device, which is one of the objective methods used for the assessment of static and dynamic balance, allows the acquisition of numerical data at the end of the evaluation. Equipped with an isokinetic balance system, this device consists of a screen monitor and a sloped platform on which the individuals being evaluated stand. This platform has air pistons that provide a 15-degree tilt in all directions. These air pistons come into play, especially during the assessment of dynamic balance. The settings of the platform can be adjusted according to the evaluator's decision, thanks to the servo motors associated with the device.
次要结局
- Foot Plantar Pressure Distribution Assesment(Day 1 and Day 8)
研究者
Gülenay Yıldırım
Research Assistant
Saglik Bilimleri Universitesi