What Are the Effects of Lower Limb Dysmetria on Gluteus Medius and Erector Spinae Musculature?
- Conditions
- Muscular Disorders, Atrophic
- Interventions
- Other: To evaluate the response of an orthopedic insoleOther: evaluate activation of musculature
- Registration Number
- NCT06217835
- Lead Sponsor
- Camilo Jose Cela University
- Brief Summary
Gluteus Medius (GM) has also been implicated in the development of Low Back Pain (LBP). GM is one of the main pelvic, where he actively participates in control of motion in the frontal and transverse plane, and hip , improving stability to the lumbopelvic-hip complex.
The aim of present study was to investigate whether modifying lower limb length with a different foot insoles of 0.5, 1 and 1.5 cm in a normal population has an effect on ES and GM activity and as a consequence in LBP. As a secondary objective, in turn, to evaluate whether ES and GM activity has an effect on jumping ability as assessed through CMJ.
- Detailed Description
Background: Length leg discrepancy (LLD), regardless of its origin, is a very common pathology that can contribute to low back pain. Various authors point out its relationship with the lack of activation of both the gluteus medius (GM) and the ipsilateral erector spinae (ES). The purpose of this study was to identify the activation of Es and GM with different simulated LLD, correlating said activation with the LBP. In turn, to evaluate whether ES and GM activity has an effect on jumping ability as assessed through CMJ. (2) Method: a sample of healthy subjects was selected to whom an artificial LLD was incorporated through a 0.5, 1 and 1.5 cm insole, measuring with EMGs in these 3 moments while walking and performing a counter movement jump (CMJ). The measurement was carried out in random order, in terms of insole height, using a Latin Square. Muscle activation patterns were recorded for 30 seconds at each of the insole heights while walking at 5.7 km/h and compared with the maximum voluntary contraction (MVC), both on the ipsilateral and contra-lateral sides. These muscles were then measured under the same circumstances during the development of the CMJ. (3)
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 34
- The volunteers had no problems in range of motion of joints of the lower limbs
- pelvic obliquity due to a functional leg length discrepancy.
- obesity with body mass index (BMI) 35 > kg/m²
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description 0,5 cm jig To evaluate the response of an orthopedic insole A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute. 1,5 cm jig To evaluate the response of an orthopedic insole A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute. 1 cm jig evaluate activation of musculature A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute. 1,5 cm jig evaluate activation of musculature A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute. 0,5 cm jig evaluate activation of musculature A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute. 1 cm jig To evaluate the response of an orthopedic insole A template with the dimensions indicated is introduced to the user and he/she walks for 1 minute.
- Primary Outcome Measures
Name Time Method Erector Spinae (mv) 1 week Erector Spinae activation (mv)
Height CMJ 1 week CMJ jump flight height
Height DJ LEFT 1 week Flying height in drop jump left leg
Height DJ RIGHT 1 week Flying height in drop jump right leg
Gluteus medius (mv) 1 week Gluteus medius activation (mv)
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Juan Hernández Lougedo
🇪🇸Villanueva De La Cañada, Madrid, Spain