Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men

Study I – The effect of fast (3.66 rad/s, FAST) or slow (0.35 rad/s, SLOW) isokinetic high‐resistance muscle lengthening contractions on muscle fiber and whole muscle cross‐sectional area (CSA) of the elbow flexors was investigated in young men. Twelve subjects (23.8±2.4 years, mean±SD) performed ma...

Full description

Saved in:
Bibliographic Details
Published in:Scandinavian journal of medicine & science in sports 2005-04, Vol.15 (2), p.135-136
Main Authors: Shepstone, T. N., Tang, J. E., Dallaire, S. E., Schuenke, M. D., Staron, R. S., Phillips, S. M.
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c2281-de2387f07eb5d7fe9f4af3a56a87c4894064aeb9e2cb1b06c90e7395ede6807b3
cites
container_end_page 136
container_issue 2
container_start_page 135
container_title Scandinavian journal of medicine & science in sports
container_volume 15
creator Shepstone, T. N.
Tang, J. E.
Dallaire, S. E.
Schuenke, M. D.
Staron, R. S.
Phillips, S. M.
description Study I – The effect of fast (3.66 rad/s, FAST) or slow (0.35 rad/s, SLOW) isokinetic high‐resistance muscle lengthening contractions on muscle fiber and whole muscle cross‐sectional area (CSA) of the elbow flexors was investigated in young men. Twelve subjects (23.8±2.4 years, mean±SD) performed maximal resistive lengthening isokinetic exercise with both arms for 8 weeks (3 days/week), during which they trained one arm at a FAST velocity while the contralateral arm performed an equivalent number of contractions at a SLOW velocity. Before (PRE) and after (POST) the training, percutaneous muscle biopsies were taken from the mid‐belly of the biceps brachii and analyzed for fiber type and CSA. Type I muscle fiber size increased PRE to POST (P
doi_str_mv 10.1111/j.1600-0838.2005.453_1.x
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_17123670</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>17123670</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2281-de2387f07eb5d7fe9f4af3a56a87c4894064aeb9e2cb1b06c90e7395ede6807b3</originalsourceid><addsrcrecordid>eNqNkLFu2zAQhomiBeqmfQdO3ageRUmklgJF0CZFnHRwgowEJZ8sOrToknRsjX3zyHaQubfcAfd___ARQjlkfJpv64xXAAyUUFkOUGZFKTTPDu_I7O3xnsyghpJJrtRH8inGNQCXdVHOyL9F70NiCcOG9nbVM_ocqfN79ozOtzaN1Eb_ZAdMtqUOh1XqcbDDiqZg7OkIGHcuRWoHugpopibaj1sMKfhtP1Lf0Qmh6Bq_p53Dgw-n7Oh3E7zB4TP50BkX8cvrviAPv37eX16z-Z-r35c_5qzNc8XZEnOhZAcSm3IpO6y7wnTClJVRsi1UXUBVGGxqzNuGN1C1NaAUdYlLrBTIRlyQr-febfB_dxiT3tjYonNmQL-Lmkuei0rCFFTnYBt8jAE7vQ12Y8KoOeijc73WR7X6qFYfneuTc32Y0O9ndG8djv_N6cXt4nROBexcYGPCw1uBCU-6kkKW-vHuSt9ci_z2HuZT_gW1D5tN</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>17123670</pqid></control><display><type>article</type><title>Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men</title><source>EBSCOhost SPORTDiscus with Full Text</source><source>Wiley-Blackwell Read &amp; Publish Collection</source><creator>Shepstone, T. N. ; Tang, J. E. ; Dallaire, S. E. ; Schuenke, M. D. ; Staron, R. S. ; Phillips, S. M.</creator><creatorcontrib>Shepstone, T. N. ; Tang, J. E. ; Dallaire, S. E. ; Schuenke, M. D. ; Staron, R. S. ; Phillips, S. M.</creatorcontrib><description>Study I – The effect of fast (3.66 rad/s, FAST) or slow (0.35 rad/s, SLOW) isokinetic high‐resistance muscle lengthening contractions on muscle fiber and whole muscle cross‐sectional area (CSA) of the elbow flexors was investigated in young men. Twelve subjects (23.8±2.4 years, mean±SD) performed maximal resistive lengthening isokinetic exercise with both arms for 8 weeks (3 days/week), during which they trained one arm at a FAST velocity while the contralateral arm performed an equivalent number of contractions at a SLOW velocity. Before (PRE) and after (POST) the training, percutaneous muscle biopsies were taken from the mid‐belly of the biceps brachii and analyzed for fiber type and CSA. Type I muscle fiber size increased PRE to POST (P&lt;0.05) in both FAST and SLOW arms. Type IIa and IIx muscle fiber CSA increased in both arms, but the increases were greater in the FAST vs the SLOW trained arm (P&lt;0.05). Elbow flexor CSA increased in FAST and SLOW arms, with the increase in the FAST arm showing a trend toward being greater (P=0.06). Maximum torque generating capacity also increased to a greater degree (P&lt;0.05) in the FAST arm, regardless of testing velocity. Study II – In a separate study, we attempted to provide some explanation of the greater hypertrophy observed in study I by examining an indicator of protein remodeling (Z‐line streaming), which we hypothesized would be greater in the FAST condition. Nine men (21.7±2.4 years) performed an acute bout (N=30, 3 sets × 10 repetitions/set) of maximal lengthening contractions at FAST and SLOW velocities used in the training study. Biopsies revealed that FAST lengthening contractions resulted in more (185±17%; P&lt;0.01) Z‐band streaming/mm(2) muscle, vs the SLOW arm. In conclusion, training using FAST (3.66 rad/s) lengthening contractions leads to greater hypertrophy and strength gains than SLOW (0.35 rad/s) lengthening contractions. The greater hypertrophy seen in the FAST trained arm (study I) may be related to a greater amount of protein remodeling (Z‐band streaming; study II).</description><identifier>ISSN: 0905-7188</identifier><identifier>EISSN: 1600-0838</identifier><identifier>DOI: 10.1111/j.1600-0838.2005.453_1.x</identifier><language>eng</language><publisher>Oxford, UK: Munksgaard International Publishers</publisher><ispartof>Scandinavian journal of medicine &amp; science in sports, 2005-04, Vol.15 (2), p.135-136</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2281-de2387f07eb5d7fe9f4af3a56a87c4894064aeb9e2cb1b06c90e7395ede6807b3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Shepstone, T. N.</creatorcontrib><creatorcontrib>Tang, J. E.</creatorcontrib><creatorcontrib>Dallaire, S. E.</creatorcontrib><creatorcontrib>Schuenke, M. D.</creatorcontrib><creatorcontrib>Staron, R. S.</creatorcontrib><creatorcontrib>Phillips, S. M.</creatorcontrib><title>Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men</title><title>Scandinavian journal of medicine &amp; science in sports</title><description>Study I – The effect of fast (3.66 rad/s, FAST) or slow (0.35 rad/s, SLOW) isokinetic high‐resistance muscle lengthening contractions on muscle fiber and whole muscle cross‐sectional area (CSA) of the elbow flexors was investigated in young men. Twelve subjects (23.8±2.4 years, mean±SD) performed maximal resistive lengthening isokinetic exercise with both arms for 8 weeks (3 days/week), during which they trained one arm at a FAST velocity while the contralateral arm performed an equivalent number of contractions at a SLOW velocity. Before (PRE) and after (POST) the training, percutaneous muscle biopsies were taken from the mid‐belly of the biceps brachii and analyzed for fiber type and CSA. Type I muscle fiber size increased PRE to POST (P&lt;0.05) in both FAST and SLOW arms. Type IIa and IIx muscle fiber CSA increased in both arms, but the increases were greater in the FAST vs the SLOW trained arm (P&lt;0.05). Elbow flexor CSA increased in FAST and SLOW arms, with the increase in the FAST arm showing a trend toward being greater (P=0.06). Maximum torque generating capacity also increased to a greater degree (P&lt;0.05) in the FAST arm, regardless of testing velocity. Study II – In a separate study, we attempted to provide some explanation of the greater hypertrophy observed in study I by examining an indicator of protein remodeling (Z‐line streaming), which we hypothesized would be greater in the FAST condition. Nine men (21.7±2.4 years) performed an acute bout (N=30, 3 sets × 10 repetitions/set) of maximal lengthening contractions at FAST and SLOW velocities used in the training study. Biopsies revealed that FAST lengthening contractions resulted in more (185±17%; P&lt;0.01) Z‐band streaming/mm(2) muscle, vs the SLOW arm. In conclusion, training using FAST (3.66 rad/s) lengthening contractions leads to greater hypertrophy and strength gains than SLOW (0.35 rad/s) lengthening contractions. The greater hypertrophy seen in the FAST trained arm (study I) may be related to a greater amount of protein remodeling (Z‐band streaming; study II).</description><issn>0905-7188</issn><issn>1600-0838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNkLFu2zAQhomiBeqmfQdO3ageRUmklgJF0CZFnHRwgowEJZ8sOrToknRsjX3zyHaQubfcAfd___ARQjlkfJpv64xXAAyUUFkOUGZFKTTPDu_I7O3xnsyghpJJrtRH8inGNQCXdVHOyL9F70NiCcOG9nbVM_ocqfN79ozOtzaN1Eb_ZAdMtqUOh1XqcbDDiqZg7OkIGHcuRWoHugpopibaj1sMKfhtP1Lf0Qmh6Bq_p53Dgw-n7Oh3E7zB4TP50BkX8cvrviAPv37eX16z-Z-r35c_5qzNc8XZEnOhZAcSm3IpO6y7wnTClJVRsi1UXUBVGGxqzNuGN1C1NaAUdYlLrBTIRlyQr-febfB_dxiT3tjYonNmQL-Lmkuei0rCFFTnYBt8jAE7vQ12Y8KoOeijc73WR7X6qFYfneuTc32Y0O9ndG8djv_N6cXt4nROBexcYGPCw1uBCU-6kkKW-vHuSt9ci_z2HuZT_gW1D5tN</recordid><startdate>200504</startdate><enddate>200504</enddate><creator>Shepstone, T. N.</creator><creator>Tang, J. E.</creator><creator>Dallaire, S. E.</creator><creator>Schuenke, M. D.</creator><creator>Staron, R. S.</creator><creator>Phillips, S. M.</creator><general>Munksgaard International Publishers</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TS</scope></search><sort><creationdate>200504</creationdate><title>Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men</title><author>Shepstone, T. N. ; Tang, J. E. ; Dallaire, S. E. ; Schuenke, M. D. ; Staron, R. S. ; Phillips, S. M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2281-de2387f07eb5d7fe9f4af3a56a87c4894064aeb9e2cb1b06c90e7395ede6807b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shepstone, T. N.</creatorcontrib><creatorcontrib>Tang, J. E.</creatorcontrib><creatorcontrib>Dallaire, S. E.</creatorcontrib><creatorcontrib>Schuenke, M. D.</creatorcontrib><creatorcontrib>Staron, R. S.</creatorcontrib><creatorcontrib>Phillips, S. M.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><jtitle>Scandinavian journal of medicine &amp; science in sports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shepstone, T. N.</au><au>Tang, J. E.</au><au>Dallaire, S. E.</au><au>Schuenke, M. D.</au><au>Staron, R. S.</au><au>Phillips, S. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men</atitle><jtitle>Scandinavian journal of medicine &amp; science in sports</jtitle><date>2005-04</date><risdate>2005</risdate><volume>15</volume><issue>2</issue><spage>135</spage><epage>136</epage><pages>135-136</pages><issn>0905-7188</issn><eissn>1600-0838</eissn><abstract>Study I – The effect of fast (3.66 rad/s, FAST) or slow (0.35 rad/s, SLOW) isokinetic high‐resistance muscle lengthening contractions on muscle fiber and whole muscle cross‐sectional area (CSA) of the elbow flexors was investigated in young men. Twelve subjects (23.8±2.4 years, mean±SD) performed maximal resistive lengthening isokinetic exercise with both arms for 8 weeks (3 days/week), during which they trained one arm at a FAST velocity while the contralateral arm performed an equivalent number of contractions at a SLOW velocity. Before (PRE) and after (POST) the training, percutaneous muscle biopsies were taken from the mid‐belly of the biceps brachii and analyzed for fiber type and CSA. Type I muscle fiber size increased PRE to POST (P&lt;0.05) in both FAST and SLOW arms. Type IIa and IIx muscle fiber CSA increased in both arms, but the increases were greater in the FAST vs the SLOW trained arm (P&lt;0.05). Elbow flexor CSA increased in FAST and SLOW arms, with the increase in the FAST arm showing a trend toward being greater (P=0.06). Maximum torque generating capacity also increased to a greater degree (P&lt;0.05) in the FAST arm, regardless of testing velocity. Study II – In a separate study, we attempted to provide some explanation of the greater hypertrophy observed in study I by examining an indicator of protein remodeling (Z‐line streaming), which we hypothesized would be greater in the FAST condition. Nine men (21.7±2.4 years) performed an acute bout (N=30, 3 sets × 10 repetitions/set) of maximal lengthening contractions at FAST and SLOW velocities used in the training study. Biopsies revealed that FAST lengthening contractions resulted in more (185±17%; P&lt;0.01) Z‐band streaming/mm(2) muscle, vs the SLOW arm. In conclusion, training using FAST (3.66 rad/s) lengthening contractions leads to greater hypertrophy and strength gains than SLOW (0.35 rad/s) lengthening contractions. The greater hypertrophy seen in the FAST trained arm (study I) may be related to a greater amount of protein remodeling (Z‐band streaming; study II).</abstract><cop>Oxford, UK</cop><pub>Munksgaard International Publishers</pub><doi>10.1111/j.1600-0838.2005.453_1.x</doi><tpages>2</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0905-7188
ispartof Scandinavian journal of medicine & science in sports, 2005-04, Vol.15 (2), p.135-136
issn 0905-7188
1600-0838
language eng
recordid cdi_proquest_miscellaneous_17123670
source EBSCOhost SPORTDiscus with Full Text; Wiley-Blackwell Read & Publish Collection
title Short-term high- vs low-velocity isokinetic lengthening training results in greater hypertrophy of the elbow flexors in young men
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T22%3A14%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Short-term%20high-%20vs%20low-velocity%20isokinetic%20lengthening%20training%20results%20in%20greater%20hypertrophy%20of%20the%20elbow%20flexors%20in%20young%20men&rft.jtitle=Scandinavian%20journal%20of%20medicine%20&%20science%20in%20sports&rft.au=Shepstone,%20T.%20N.&rft.date=2005-04&rft.volume=15&rft.issue=2&rft.spage=135&rft.epage=136&rft.pages=135-136&rft.issn=0905-7188&rft.eissn=1600-0838&rft_id=info:doi/10.1111/j.1600-0838.2005.453_1.x&rft_dat=%3Cproquest_cross%3E17123670%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c2281-de2387f07eb5d7fe9f4af3a56a87c4894064aeb9e2cb1b06c90e7395ede6807b3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=17123670&rft_id=info:pmid/&rfr_iscdi=true