Note
Includes bibliography.
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
2018
EDTF Date Created
2018
Description
The purpose of this research was to investigate the effects of eccentric phase
duration on concentric outcomes at 60% and 80% of one-repetition maximum (1RM) in
the squat and bench press. Sixteen resistance-trained males completed four laboratory
visits as follows: Day 1- 1RM testing; Day 2- establishment of normative eccentric
durations; Days 3 and 4- randomized fast (0.75 times) or slow (2 times) eccentric
duration variations, which were controlled by visual and auditory metronomes. Eccentric
duration was significantly and inversely correlated with average concentric velocity
(ACV) at 60% (r = 0.408) and 80% (r = -0.477) of 1RM squat and at 100% of 1RM
bench press. At 60% of 1RM squat, both fast and slow eccentric conditions produced
greater (p<0.001) peak concentric velocity (PCV) than normative duration with fast also
producing greater PCV than slow (p=0.044). Therefore, fast eccentric durations may
benefit concentric velocity.
duration on concentric outcomes at 60% and 80% of one-repetition maximum (1RM) in
the squat and bench press. Sixteen resistance-trained males completed four laboratory
visits as follows: Day 1- 1RM testing; Day 2- establishment of normative eccentric
durations; Days 3 and 4- randomized fast (0.75 times) or slow (2 times) eccentric
duration variations, which were controlled by visual and auditory metronomes. Eccentric
duration was significantly and inversely correlated with average concentric velocity
(ACV) at 60% (r = 0.408) and 80% (r = -0.477) of 1RM squat and at 100% of 1RM
bench press. At 60% of 1RM squat, both fast and slow eccentric conditions produced
greater (p<0.001) peak concentric velocity (PCV) than normative duration with fast also
producing greater PCV than slow (p=0.044). Therefore, fast eccentric durations may
benefit concentric velocity.
Language
Type
Form
Extent
60 p.
Subject (Topical)
Identifier
FA00013055
Additional Information
Includes bibliography.
Thesis (M.S.)--Florida Atlantic University, 2018.
FAU Electronic Theses and Dissertations Collection
Date Backup
2018
Date Created Backup
2018
Date Text
2018
Date Created (EDTF)
2018
Date Issued (EDTF)
2018
Extension
FAU
IID
FA00013055
Organizations
Attributed name: Florida Atlantic University
Attributed name: College of Education
Attributed name: Department of Exercise Science and Health Promotion
Person Preferred Name
Carzoli, Joseph P.
author
Graduate College
Physical Description
application/pdf
60 p.
Title Plain
The Effects of Eccentric Phase Duration on Concentric Outcomes in the Squat and Bench Press
Use and Reproduction
Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
2018
2018
Florida Atlantic University
Boca Raton, Fla.
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
The Effects of Eccentric Phase Duration on Concentric Outcomes in the Squat and Bench Press
Other Title Info
The Effects of Eccentric Phase Duration on Concentric Outcomes in the Squat and Bench Press