A comparison of load-velocity and load-power relationships between well-trained young and middle-aged males during three popular resistance exercises

Hdl Handle:
http://hdl.handle.net/10034/620725
Title:
A comparison of load-velocity and load-power relationships between well-trained young and middle-aged males during three popular resistance exercises
Authors:
Fernandes, John; Lamb, Kevin L.; Twist, Craig
Abstract:
This study examined the load-velocity and load-power relationships among 20 young (age 21.0 ± 1.6 y) and 20 middle-aged (age 42.6 ± 6.7 y) resistance trained males. Participants performed three repetitions of bench press, squat and bent-over-row across a range of loads corresponding to 20 to 80% of one repetition maximum (1RM). Analysis revealed effects (P < 0.05) of group and load x group on barbell velocity for all three exercises, and interaction effects on power for squat and bent over-row (P < 0.05). For bench press and bent-over-row, the young group produced higher barbell velocities, with the magnitude of the differences decreasing as load increased (ES; effect size 0.0 to 1.7 and 1.0 to 2.0, respectively). Squat velocity was higher in the young group than the middle-aged group (ES 1.0 to 1.7) across all loads, as was power for each exercise (ES 1.0 to 2.3). For all three exercises, both velocity and 1RM were correlated with optimal power in the middle-aged group (r = .613 to .825, P < 0.05), but only 1RM was correlated with optimal power (r = .708 to .867, P < 0.05) in the young group. These findings indicate that despite their resistance training, middle-aged males were unable to achieve velocities at low external loads and power outputs as high as the young males across a range of external resistances. Moreover, the strong correlations between 1RM and velocity with optimal power suggest that middle-aged males would benefit from training methods which maximise these adaptations.
Affiliation:
University of Chester
Citation:
Fernandes, J.F.T., Lamb, K.L., & Twist, C. (2017 - in press). A comparison of load-velocity and load-power relationships between well-trained young and middle-aged males during three popular resistance exercises. Journal of Strength and Conditioning Research.
Publisher:
National Strength and Conditioning Association
Journal:
Journal of Strength and Conditioning Research
Publication Date:
5-May-2017
URI:
http://hdl.handle.net/10034/620725
DOI:
10.1519/JSC.0000000000001986
Additional Links:
http://journals.lww.com/nsca-jscr/Abstract/publishahead/A_comparison_of_load_velocity_and_load_power.95992.aspx; http://journals.lww.com/nsca-jscr/pages/default.aspx
Type:
Article
Language:
en
EISSN:
1533-4287
Appears in Collections:
Sport and Exercise Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorFernandes, Johnen
dc.contributor.authorLamb, Kevin L.en
dc.contributor.authorTwist, Craigen
dc.date.accessioned2017-11-22T13:49:24Z-
dc.date.available2017-11-22T13:49:24Z-
dc.date.issued2017-05-05-
dc.identifier.citationFernandes, J.F.T., Lamb, K.L., & Twist, C. (2017 - in press). A comparison of load-velocity and load-power relationships between well-trained young and middle-aged males during three popular resistance exercises. Journal of Strength and Conditioning Research.en
dc.identifier.doi10.1519/JSC.0000000000001986-
dc.identifier.urihttp://hdl.handle.net/10034/620725-
dc.description.abstractThis study examined the load-velocity and load-power relationships among 20 young (age 21.0 ± 1.6 y) and 20 middle-aged (age 42.6 ± 6.7 y) resistance trained males. Participants performed three repetitions of bench press, squat and bent-over-row across a range of loads corresponding to 20 to 80% of one repetition maximum (1RM). Analysis revealed effects (P < 0.05) of group and load x group on barbell velocity for all three exercises, and interaction effects on power for squat and bent over-row (P < 0.05). For bench press and bent-over-row, the young group produced higher barbell velocities, with the magnitude of the differences decreasing as load increased (ES; effect size 0.0 to 1.7 and 1.0 to 2.0, respectively). Squat velocity was higher in the young group than the middle-aged group (ES 1.0 to 1.7) across all loads, as was power for each exercise (ES 1.0 to 2.3). For all three exercises, both velocity and 1RM were correlated with optimal power in the middle-aged group (r = .613 to .825, P < 0.05), but only 1RM was correlated with optimal power (r = .708 to .867, P < 0.05) in the young group. These findings indicate that despite their resistance training, middle-aged males were unable to achieve velocities at low external loads and power outputs as high as the young males across a range of external resistances. Moreover, the strong correlations between 1RM and velocity with optimal power suggest that middle-aged males would benefit from training methods which maximise these adaptations.en
dc.language.isoenen
dc.publisherNational Strength and Conditioning Associationen
dc.relation.urlhttp://journals.lww.com/nsca-jscr/Abstract/publishahead/A_comparison_of_load_velocity_and_load_power.95992.aspxen
dc.relation.urlhttp://journals.lww.com/nsca-jscr/pages/default.aspxen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectBench pressen
dc.subjectSquaten
dc.subjectAgeingen
dc.titleA comparison of load-velocity and load-power relationships between well-trained young and middle-aged males during three popular resistance exercisesen
dc.typeArticleen
dc.identifier.eissn1533-4287-
dc.contributor.departmentUniversity of Chesteren
dc.identifier.journalJournal of Strength and Conditioning Researchen
dc.date.accepted2017-05-05-
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2217-11-22-
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