NCT04301947

Acute Effect of a Gluteal Activation Warm-up on Hip Muscle Activity and Kinematics During a Single Leg Squat

Completed NA Last updated 22 January 2021

What this trial tests

NA trial testing Standard warm-up protocol in Hip Adduction in 23 participants. Completed in 1 December 2020.

Timeline

1 March 2020

Primary endpoint
1 December 2020

1 December 2020

Quick facts

Lead sponsor	University of the State of Santa Catarina
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	double
Primary purpose	treatment
Enrollment	23
Start date	1 March 2020
Primary completion	1 December 2020
Estimated completion	1 December 2020
Sites	1 location across Brazil

Drugs / interventions tested

• Standard warm-up protocol
• Gluteal activation warm-up protocol

Conditions studied

• Hip Adduction — all drugs for Hip Adduction →
• Gluteus EMG Activity — all drugs for Gluteus EMG Activity →

Sponsor

University of the State of Santa Catarina

Who can join

Adults 18 to 35, any sex, with Hip Adduction or Gluteus EMG Activity. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Gluteal activation warm-up is one of the modalities being investigated recently. Although widely used in clinical and sports practice, it is unclear whether, in fact, performing gluteal activation exercises in warm-up is effective in increasing electromyographic activation (EMG), as well as the mechanisms that explain eventual gluteal activation improvement of neuromuscular function. Thus, the aim of this study is to verify the acute effect of a gluteal activation warm-up protocol on gluteus maximus (superior fibers) and gluteus medius EMG activation and kinematics during single leg squat. The hypotheses of this study are that after a gluteal activation warm-up program, there will be an increase in the muscle recruitment (mean) levels of the gluteus maximus (superior fibers) and gluteus medium. About kinematics, the hypotheses is that a decrease on hip adduction absolute angle and hip and knee frontal plane ROM on maximum knee flexion during single leg squat will occur. Physically active adults from 18 to 35 years old, with no history of previous injury or surgery on the lower limbs, who present excessive hip adduction during single-leg squat on the dominant limb in previous evaluation via visual scoring scale will participate in this study. The design adopted will be performed in the following order: (1) Preparation and familiarization. (2) Intervention protocol (standard warm-up protocol or the gluteal activation warm-up protocol), (4) immediately after the intervention protocol, the subjects will perform 3 single-leg squats and (5) EMG and MIVC strength test. The standard warm-up consist 5 minutes on a stationary bike and 30 seconds calf, hamstrings and quadriceps stretch. The gluteal activation warm-up protocol consists of performing the standard warm-up protocol and 3 sets of 12 repetitions clam exercise, using a elastic band (Perform Better®, USA). Exertion perception will be controlled using an exertion perception scale (OMNI). From kinematic and EMG data, absolute values of the hip adduction, hip and knee ROM in the frontal plane of the dominant limb and mean EMG activation data from the gluteus maximus (superior fibers) and gluteus medius muscles we will extracted, respectively. All data will be analyzed using descriptive and inferential statistics. (p \<0.05).

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.