Analysis of Different Hip Adductors Exercises

Injury of Hip and Thigh Clinical Trial

Official title:

Kinematic and Electromyographic Analysis of Different Hip Adductors Exercises

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT04101786
• Other study ID #: UP-FVZ-HipAdductorsExercises
• Status: Not yet recruiting
• Phase: N/A
• Start date: January 2020
• Est. completion date: January 2020

Study information

• Verified date: October 2019
• Source: University of Primorska
• Contact: Nejc Šarabon, PhD
• Phone: 05 662 64 66
• Email: nejc.sarabon[@]fvz.upr.si
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Groin injuries present a major problem in sports due to its high frequency, long-lasting symptoms and high risk of re-injury. The most common groin injury is the adductor strain (around two thirds of all groin injuries), while the biggest risk factors are previous injury and lower hip adductors strength. The purpose of this study is to present and biomechanically evaluate several new strengthening exercises targeting hip adductors. Exercises will be performed with the use of our novelty device, which enables eccentric strengthening of the hip adductors in different hip and knee positions. We hypothesize that performing modified hip adductors exercises using the novelty device could enable participants to perform hip adduction throughout larger ROM during eccentric contractions, while changing hip and/or knee angle will differently affect muscle activity and produced joint torques. The latter could be helpful for preventive or rehabilitative training for hip adductors strain injuries, in which therapists want to target specific hip adductor muscle.

Description:

Following the general warm-up (light aerobic activity, dynamic stretching exercises and bodyweight strength exercises), the electromyographic (EMG) sensors and kinematic markers will be attached to the participant, who will then perform the maximal voluntary contractions for the purpose of EMG normalization. Then the participant will perform new hip adductor exercises using the novelty device, which enables hip adduction eccentric contractions in different hip and knee positions. The latter is important when trying to target specific hip adductor muscle, since different hip and/or knee angles differently affect individual muscle activity and joint torques. Exercises will be performed in randomized order, while the EMG and kinematic signals will be synchronously captured. EMG muscle activity and joint torques, produced during the exercises, will be analysed. Descriptive statistics will be calculated and reported as mean ± standard deviation. Shapiro-Wilk test will be used for testing of normality and Levene's test for equality of variances. Differences among corresponding variables will be obtained from different exercises and tested with the analysis of the variance for repeated measurements. For pair-wise comparisons, paired 2-tailed post-hoc t-tests with Bonferroni's correction will be used. The level of statistical significance will be set at p < 0.05.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 18
• Est. completion date: January 2020
• Est. primary completion date: January 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 40 Years

Eligibility

Inclusion Criteria:

Performing regular physical activity, experience with strength training.

Exclusion Criteria:

Neural, muscular, skeletal or connective tissue injuries during the last 12 months in the area of the back, hips and legs.

Related Conditions & MeSH terms

• Hip Injuries
• Injury of Hip and Thigh

Intervention

Other:
• Hip adductors exercise variations
The participants will perform different exercise variations targeting hip adductors in randomized order.

Locations

Country	Name	City	State
Slovenia	Faculty of Health Sciences	Izola

Sponsors (1)

Lead Sponsor	Collaborator
University of Primorska

Country where clinical trial is conducted

Slovenia, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Muscle activity	Muscle activity of (bilateral) adductor longus, gluteus maximus, gluteus medius, rectus abdominis and obliquus externus will be measured using electromyographic sensors.	3 hours
Primary	Net joint torque	Net joint torques at the knee and hip will be calculated from kinematic data, measured in frontal plane using 3D kinematic motion capture system.	3 hours