Effect of Core Stability Exercise on Temporal Activation of Core Muscles and Vasti in Isolated Patellofemoral Osteoarthritis.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 31
- 试验地点
- 2
- 主要终点
- The change of EMG duration of transversus abdominus (TrA) muscle
研究概览
简要总结
Purpose: to investigate the effect of core stability on PF OA. Methods: Thirty-one females with PF OA will be recruited. Patients will be randomly assigned into two groups, group A and group B . Patients in both groups will receive a traditional physical therapy treatment, but group (B) will receive additional core stability exercise. All patients will be evaluated for pain, functional performance, and muscular recruitment strategies (onset and duration) of multifidus, transversus abdominus (TrA), gluteus medius (GM), and vasti measured by quantitative Electromyography during stair ascent. pre and post-treatment.
详细描述
A) Procedures for evaluation:
The practical section of the studywill be undertaken in 6 weeks (2 sessions a week). Measurement will be taken before the start of treatment program then after the end of 6 weeks treatment program f in the following manner:
- Patients will be asked to respond to the questions of the Kujala scale.
- The eleven-point numerical rating scale will be used to measure pain severity
- Investigators will collect the EMG activity of VMO, VL, GM, multifidus, and TrA using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels highresolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
Electromyographic data will be sampled at 1000 Hz and bandpass filtered at 50-200 Hz. For each muscle, three electrodes will be used; two electrodes will be placed ~ 30 mm apart in the direction of the muscle fibers and a ground electrode will be placed over the closest bony prominence. Before placement of the electrodes, the subject's skin will be cleaned with alcohol to reduce impedance and excess hair will be removed to eliminate shifting of the electrodes if needed. The stair-stepping task will consist of ascending 2 steps (each step will be 40 cm in width, 20 cm in height, without handrails. The depth of the first and second steps will be 30 cm and 40 cm, respectively) . Participants will be asked to stand on the floor confronting the stairs and 20 cm away from the edge of the initial step.
The stair ascent task will be performed barefooted while arms hanged at the side of the body. Patients will start ascending the steps immediately in response to a command, at their normal speed with their affected limb. Investigators aren't going to control the speed of stair ascent, because controlling the timing of stair-stepping can alter the electromyographic signal as shown earlier for gait in asymptomatic subjects. Before data acquisition, participants will be asked to perform one practice trial of stair ascent to get familiarized with the task. Then the participants will perform three test trials with thirty seconds of rest after each trial to prevent fatigue. The raw data will be stored on a personal computer for analysis with a custom program in Matlab (Math Works, Natick, Massachusetts, USA). Investigators will use a mean of data in three trials for analysis. b) Procedures for treatment: All patients will receive a traditional physical therapy program in the form of TENS , stretching hamstring, quadriceps and calf muscles
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 35 Years 至 55 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •patients included if they had
- •Anterior- or retro-patellar knee pain aggravated by at least two activities that load the PFJ (eg; stair ambulation, squatting and/or rising from sitting) .
- •Pain during these activities presented on most days during the past month and their pain severity was ≥ 4 on an 11 point numerical pain scale during aggravating activities .,
- •A grade less than (2) from postero-anterior views on the Kellgren - Lawrence (KL) grading scale.
排除标准
- •concomitant pain from tibiofemoral joint or other knee structures .
- •current or previous pain in the hip, lumbar spine or foot that had lasted longer than 3 months and/or required intervention.
- •a history of lower extremity, pelvis or spine fractures; spine, hip, knee or foot surgeries; hip or patellar subluxation/ dislocation.
- •injury to any of knee ligaments or meniscus.
- •systemic diseases (e.g. rheumatoid arthritis), neurological conditions or fibromyalgia .
- •The professional athletes; people who exercise more than two hours a day or every other day, will be excluded.
结局指标
主要结局
The change of EMG duration of transversus abdominus (TrA) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of TrA using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG duration of vastus medialis obliqus (VMO) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of VMO using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG onset of transversus abdominus (TrA) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of TrA using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG onset of multifidus,
时间窗: baseline and six weeks
investigators will collect the EMG activity of multifidus using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG duration of multifidus,
时间窗: baseline and six weeks
investigators will collect the EMG activity of multifidus using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG duration of vastus lateralis (VL) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of VL using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG onset of gluteus medius (GM) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of GM using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG duration of gluteus medius (GM) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of GM using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG onset of vastus lateralis (VL) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of VL using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
The change of EMG onset of vastus medialis obliqus (VMO) muscle
时间窗: baseline and six weeks
investigators will collect the EMG activity of VMO using bipolar Ag-AgCl disposable surface electrodes (Better signal solution medical supply Co., limited, Zhongshan, China) and eight channels high-resolution wireless bio amplifier (WBA) system (Biomation, Almonte, Canada).
次要结局
- pain intensity(baseline and six weeks)
- performance of functional activities(baseline and six weeks)
研究者
Jilan Adel yousef
assistant lecturer
Cairo University