AN EVALUATION OF YOLK BARBELL SQUAT VARIATIONS AND THEIR INFLUENCES ON KINETIC VARIABLES DURING SUBMAXIMAL FIVE-REPETITION SETS — Presentation Detail — Celebration of Scholars

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Thomas Carr
Katherin Hilson
Kim Instenes
John Kirk
Sarah Terrill

AN EVALUATION OF YOLK BARBELL SQUAT VARIATIONS AND THEIR INFLUENCES ON KINETIC VARIABLES DURING SUBMAXIMAL FIVE-REPETITION SETS

Name: Benjamin Nolan
Major: Exercise and Sport Science
Hometown: Middletown, Conn.
Faculty Sponsor: Tony Pustina
Other Sponsors:
Type of research: SURE
Funding: SURE

Abstract

The purpose of this study was to determine whether differences in peak force(PF) and mean concentric force (MF) exist between three squat conditions: 1) barbell back squat (BS), 2) safety bar (SSB) back squat BS 3) and a hand-supported BS using the SSB (Hatfield Squat), at intensities equal to 60, 70, 80, and 90 percent of the subject’s 1 repetition-maximum (1RM). Three males (23.0 ± 5.4 years; 92.3 ± 3.3kg; 188.0 ± 9.0 cm; relative 1RM BS: 1.6 ± 0.3 kg˖kg-1) participated in the study. 1RMs for three different conditions (BS, SSB BS, and Hatfield Squat) were determined. Next, submaximal testing included the subjects performing 5-repetitions at 60, 70, 80, and 90 percent of the participant’s 1RM. An Analysis of Variance was used to determine whether differences existed between intensity, exercises, and repetition number. The main finding from the present study is that the Hatfield squat produced significantly higher peak force values than the other squat conditions. The increased stability during this squat exercise seems to allow an individual to more effectively utilize their leg musculature.

Submit date: March 23, 2020, 10:43 p.m.