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Leg Muscle Activity Measured Via Electromyography in Back Squat Variations

Primary Purpose

Surface Electromyography, Muscular Fatigue

Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Traditional Back Squat
Barefoot Back Squat
Box Squat
Traditional Back Squat with Chains
Sponsored by
University of Mary Hardin-Baylor
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional other trial for Surface Electromyography focused on measuring Electromyography, Resistance trained

Eligibility Criteria

18 Years - 30 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Participants will be males and females between the ages of 18 - 30 years
  • Participant has provided written and dated informed consent to participate
  • Participant is willing and able to comply with the protocol
  • Participant is apparently healthy and free from disease, as determined by a health history questionnaire
  • Participant agrees to abstain from lower body exercise 3 days prior to each testing visit
  • Participant has completed at least 1 lower body workout every week for the past 6 months

Exclusion Criteria:

  • Participant reports any unusual adverse events associated with this study that in consultation with their physician recommends removal from the study
  • Participant begins consumption of new supplement during the timeline of this study
  • Participant is unable to refrain from consuming pre-workout supplement prior to testing sessions
  • Participant is unwilling to refrain from lower body exercise at least 3 days prior to each testing session

Sites / Locations

  • UMHB Human Performance Lab

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Other

Other

Other

Other

Arm Label

Back Squat Variation One

Back Squat Variation Two

Back Squat Variation Three

Back Squat Variation Four

Arm Description

In a randomized order, traditional back squat will be completed.

In a randomized order, barefoot back squat will be completed.

In a randomized order, box squat will be completed.

In a randomized order, traditional back squat with chains will be completed.

Outcomes

Primary Outcome Measures

Change from Baseline Mean Peak Muscle Activity Between Four Back Squat Variations
Participants will complete 5 sets of 10 repetitions at 70% of their 1 repetition maximum with 1-minute rest in between each set under different variations of the back squat. Each week, participants will be randomly assigned to complete a variation of back squat. Under each variation, surface electromyography recordings will consist of mean peak muscle activity as measured via BIOPAC BSL for the first and last sets of the training protocol. Thus, changes between first and last sets of the training protocol will be assessed for changes as well as comparisons between each variation of back squat to assess changes.

Secondary Outcome Measures

Change from Baseline Mean Muscle Activity Between Four Back Squat Variations
Participants will complete 5 sets of 10 repetitions at 70% of their 1 repetition maximum with 1-minute rest in between each set under different variations of the back squat. Each week, participants will be randomly assigned to complete a variation of back squat. Under each variation, surface electromyography recordings will consist of mean muscle activity as measured via BIOPAC BSL for the first and last sets of the training protocol. Thus, changes between first and last sets of the training protocol will be assessed for changes as well as comparisons between each variation of back squat to assess changes.

Full Information

First Posted
March 26, 2019
Last Updated
September 27, 2021
Sponsor
University of Mary Hardin-Baylor
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1. Study Identification

Unique Protocol Identification Number
NCT03902730
Brief Title
Leg Muscle Activity Measured Via Electromyography in Back Squat Variations
Official Title
Lower Limb Muscle Activity and Recruitment Patterns Measured Via Electromyography in Back Squat Variations
Study Type
Interventional

2. Study Status

Record Verification Date
September 2021
Overall Recruitment Status
Completed
Study Start Date
May 1, 2019 (Actual)
Primary Completion Date
September 25, 2021 (Actual)
Study Completion Date
September 25, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Mary Hardin-Baylor

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of the study is to see how different forms of the squat exercise change my body's leg muscle activity. Four forms of the traditional back squat will be used: traditional back squat, barefoot squat, box squat, and traditional back squat with chains.
Detailed Description
Resistance exercise has various benefits that promote health and reduce the chance of chronic disease, but the biggest benefit may be found in the effects on maintaining muscle mass throughout the aging process. The implications resistance training has on an individual's ability to function throughout the day with less fatigue whilst performing tasks at an easier level can all be related to improved strength and endurance that comes with resistance training. Furthermore, how the nervous system adapts and sends signals to the working muscles are of great interest as neuromuscular adaptations help in coordination, balance, and agility. Variations of the same style of exercise have been theorized to improve and/or change the adaptations that can occur. Thus, the purpose of this study would be to assess surface electromyography (sEMG) activations on 4 anatomical sites simultaneously during the squat exercise under varying conditions.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Surface Electromyography, Muscular Fatigue
Keywords
Electromyography, Resistance trained

7. Study Design

Primary Purpose
Other
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Model Description
Participants will complete all four trials in a crossover design. A one week washout period is required between treatments.
Masking
Participant
Masking Description
Investigators will randomize treatments for all participants.
Allocation
Randomized
Enrollment
7 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Back Squat Variation One
Arm Type
Other
Arm Description
In a randomized order, traditional back squat will be completed.
Arm Title
Back Squat Variation Two
Arm Type
Other
Arm Description
In a randomized order, barefoot back squat will be completed.
Arm Title
Back Squat Variation Three
Arm Type
Other
Arm Description
In a randomized order, box squat will be completed.
Arm Title
Back Squat Variation Four
Arm Type
Other
Arm Description
In a randomized order, traditional back squat with chains will be completed.
Intervention Type
Other
Intervention Name(s)
Traditional Back Squat
Intervention Description
Participants will complete traditional back squat in this four treatment crossover design.
Intervention Type
Other
Intervention Name(s)
Barefoot Back Squat
Intervention Description
Participants will complete barefoot back squat in this four treatment crossover design.
Intervention Type
Other
Intervention Name(s)
Box Squat
Intervention Description
Participants will complete box squat in this four treatment crossover design.
Intervention Type
Other
Intervention Name(s)
Traditional Back Squat with Chains
Intervention Description
Participants will complete traditional back squat with chains in this four treatment crossover design.
Primary Outcome Measure Information:
Title
Change from Baseline Mean Peak Muscle Activity Between Four Back Squat Variations
Description
Participants will complete 5 sets of 10 repetitions at 70% of their 1 repetition maximum with 1-minute rest in between each set under different variations of the back squat. Each week, participants will be randomly assigned to complete a variation of back squat. Under each variation, surface electromyography recordings will consist of mean peak muscle activity as measured via BIOPAC BSL for the first and last sets of the training protocol. Thus, changes between first and last sets of the training protocol will be assessed for changes as well as comparisons between each variation of back squat to assess changes.
Time Frame
Up to 4 weeks
Secondary Outcome Measure Information:
Title
Change from Baseline Mean Muscle Activity Between Four Back Squat Variations
Description
Participants will complete 5 sets of 10 repetitions at 70% of their 1 repetition maximum with 1-minute rest in between each set under different variations of the back squat. Each week, participants will be randomly assigned to complete a variation of back squat. Under each variation, surface electromyography recordings will consist of mean muscle activity as measured via BIOPAC BSL for the first and last sets of the training protocol. Thus, changes between first and last sets of the training protocol will be assessed for changes as well as comparisons between each variation of back squat to assess changes.
Time Frame
Up to 4 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
30 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Participants will be males and females between the ages of 18 - 30 years Participant has provided written and dated informed consent to participate Participant is willing and able to comply with the protocol Participant is apparently healthy and free from disease, as determined by a health history questionnaire Participant agrees to abstain from lower body exercise 3 days prior to each testing visit Participant has completed at least 1 lower body workout every week for the past 6 months Exclusion Criteria: Participant reports any unusual adverse events associated with this study that in consultation with their physician recommends removal from the study Participant begins consumption of new supplement during the timeline of this study Participant is unable to refrain from consuming pre-workout supplement prior to testing sessions Participant is unwilling to refrain from lower body exercise at least 3 days prior to each testing session
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Lemuel W Taylor IV, PhD
Organizational Affiliation
UMHB Human Performance Lab
Official's Role
Principal Investigator
Facility Information:
Facility Name
UMHB Human Performance Lab
City
Belton
State/Province
Texas
ZIP/Postal Code
76513
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

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Leg Muscle Activity Measured Via Electromyography in Back Squat Variations

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