Muscle Activations During Bulgarian Split Squat Exercise Variations

Sports Physical Therapy Clinical Trial

Official title:

Effect of Trunk Position on Muscle Activations During Traditional and Suspension Based Bulgarian Split Squat

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT06112015
• Other study ID #: ODU-SBFTR-AYGUNPOLAT
• Status: Completed
• Phase: N/A
• Start date: July 1, 2022
• Est. completion date: May 30, 2023

Study information

• Verified date: December 2023
• Source: T.C. ORDU ÜNIVERSITESI
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

It is essential to practice and train appropriate activation techniques to ensure optimum strength development. Knowing the effects of exercise variations that will minimize the tension forces acting on the knee by increasing the activation of the lumbo-pelvic-hip complex muscles, which are critical during sports activities, is extremely important in terms of preventing injuries. The aim of this study is to compare muscular activations during traditional and suspension-based Bulgarian split squat exercises and to examine the effect of trunk position on muscular activations.

Description:

This study utilized a single-group repeated-measures design, where 4 conditions-Bugarian split squat with trunk flexion (BSS flexion), Bulgarian Split squat with trunk neutral (BSS neutral), suspension based Bulgarian split squat with trunk flexion (SBSS flexion), suspension based Bulgarian split squat with trunk neutral (SBSS neutral)-were examined.Participants had to make two separate trips to the lab in order to be accepted into the study. All exercises were introduced to participants at the initial visit. Prior to beginning the exercises on the second visit, the participants' maximum voluntary isometric contraction (MVIC) values were calculated. The muscle activity of the gluteus medius (GMed), gluteus maximus (GMax), vastus lateralis (VL), rectus femoris (RF), vastus medialis (VM), semitendinosus (ST), biceps femoris (BF),and erector spina (ES) was monitored through the root mean square surface EMG signal amplitude. The order of the tasks was chosen for each person by straightforward randomization (by selecting from a deck of shuffled cards) so order to reduce the impact of the sequence of the exercises.The modified Borg scale was used to ensure that fatigue did not occur before each exercise since it was believed that fatigue could affect exercise performance.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 21
• Est. completion date: May 30, 2023
• Est. primary completion date: September 1, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 18 Years to 25 Years

Eligibility

Inclusion Criteria:

• Being a licensed athlete in one's own field,
• Having been engaged in sports for at least 2 years

Exclusion Criteria:

• Individuals with any musculoskeletal injury history in the lower extremities and trunk that could impede exercise within the last year,
• Individuals with systemic, neurological, and/or cognitive issues,
• Individuals experiencing pain in the lower extremities and trunk during exercises

Related Conditions & MeSH terms

• Sports Physical Therapy

Intervention

Other:
• Bulgarian split squat exercise variations
The participants performed 4 different sessions of Bulgarian split squat exercises-Bulgarian split squat with trunk flexion (BSS flexion), Bulgarian Split squat with trunk neutral (BSS neutral), suspension based Bulgarian split squat with trunk flexion (SBSS flexion), suspension based Bulgarian split squat with trunk neutral (SBSS neutral)-with EMG recordings being taken from the dominant extremity throughout each session. For each exercise, participants were instructed to perform three successful repetitions. Between each repetition, there was a 30-second break, and there was at least 10 minutes in between each of the 4 exercises. The movement was standardized by a metronome. The modified Borg scale was used to ensure that fatigue did not occur before each exercise since it was believed that fatigue could affect exercise performance. When scores reported using the modified Borg scale were 1 or lower, exercise recording was started.

Locations

Country	Name	City	State
Turkey	Ordu University	Ordu

Sponsors (2)

Lead Sponsor	Collaborator
Elif AYGUN POLAT	Gazi University

Country where clinical trial is conducted

Turkey, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Surface EMG Measurement	During data collection, the EMG Noraxon MiniDTS system (Noraxon Inc.) was used to measure the signals from the muscle. Additionally, the participants were video-recorded to prevent any potential mistakes that might have gone unnoticed during the activities.	in an average of one hour
Primary	Normalization of Surface EMG	To normalize the EMG data obtained during the exercises, MVIC was performed for each muscle.; Participants were asked to warm up on a treadmill at submaximal speed for 8 minutes before starting the measurements. Measurements were performed with 3 repetitions, each lasting 5 seconds, and a 1-minute rest period between repetitions. During the measurements, participants were verbally encouraged to give their maximum effort. After the MVIC measurements, participants were given a 5-minute rest period.	in an average of one hour