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Muscle activity levels of three lower body sites during front squat and back squat exercises

Author: Timothy J Mullen
Publisher: 2004.
Dissertation: M.S. Springfield College 2004
Edition/Format:   Thesis/dissertation : Thesis/dissertation : Manuscript : Microfiche   Archival Material : EnglishView all editions and formats
Summary:
The current study was designed to assess muscle activity levels of three lower body sites during front and back squat exercises. The subjects were 15 male students over the age of 18 years old, with at least 1 year of experience performing both squats. Each subject was tested for his 1 repetition max (1 RM) in both the front and back squat exercises. One week later the muscle activity levels of the subjects were  Read more...
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Details

Material Type: Thesis/dissertation, Manuscript, Internet resource
Document Type: Book, Archival Material, Internet Resource
All Authors / Contributors: Timothy J Mullen
OCLC Number: 61412100
Reproduction Notes: Microfiche. Eugene : Kinesiology Publications, University of Oregon, 2004. 1 microfiche : negative. "UO 04 302."
Description: vii, 89 leaves
Responsibility: by Timothy J. Mullen.

Abstract:

The current study was designed to assess muscle activity levels of three lower body sites during front and back squat exercises. The subjects were 15 male students over the age of 18 years old, with at least 1 year of experience performing both squats. Each subject was tested for his 1 repetition max (1 RM) in both the front and back squat exercises. One week later the muscle activity levels of the subjects were examined as four repetitions were performed at 75% of the 1 RM. The muscle activity levels of the left biceps femoris, left vastus medialis, and left erector spinae at the L3-L5 regions were measured by the use of EMG. Rate of perceived exertion (RPE) for the lower back and hamstring was also measured using the Borg (6 to 20) scale. A repeated measures t-test was computed for each dependent variable to determine if differences existed between the front squat and back squat. The dependent variables included: the RPE of the lower back and hamstring, and the average amount of EMG activity of each of the left biceps femoris, left vastus femoris, and left erector spinae at the L3-L5 regions. No significant differences (p>.05) were found between the front squat and back squat for the dependent variables.

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