Loading…

Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men

While concurrent training is regularly used in older populations, the inverse relationship between fibre size and oxidative capacity suggests that endurance training in resistance-trained individuals may result in some loss of resistance training-induced gains in muscle mass, which may be more prono...

Full description

Saved in:
Bibliographic Details
Published in:European journal of applied physiology 2021-11, Vol.121 (11), p.3161-3172
Main Authors: Hendrickse, Paul William, Venckunas, Tomas, Platkevicius, Justinas, Kairaitis, Ramutis, Kamandulis, Sigitas, Snieckus, Audrius, Stasiulis, Arvydas, Vitkiene, Jolanta, Subocius, Andrejus, Degens, Hans
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
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-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3
cites cdi_FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3
container_end_page 3172
container_issue 11
container_start_page 3161
container_title European journal of applied physiology
container_volume 121
creator Hendrickse, Paul William
Venckunas, Tomas
Platkevicius, Justinas
Kairaitis, Ramutis
Kamandulis, Sigitas
Snieckus, Audrius
Stasiulis, Arvydas
Vitkiene, Jolanta
Subocius, Andrejus
Degens, Hans
description While concurrent training is regularly used in older populations, the inverse relationship between fibre size and oxidative capacity suggests that endurance training in resistance-trained individuals may result in some loss of resistance training-induced gains in muscle mass, which may be more pronounced in older people. We investigated the impact of superimposed endurance training in younger (28.5 ± 4.8 years; n  = 8) and older (67.5 ± 5.5 years; n  = 7) highly resistance-trained men. Participants underwent a 10-week endurance cycling training programme consisting of five 6-min intervals at 75% max heart rate (HRmax) separated by 4-min intervals at 90% HRmax. The anatomical cross-sectional area (ACSA) of the thigh muscles, as determined with MRI, was 24% smaller in older compared to younger participants ( p  
doi_str_mv 10.1007/s00421-021-04768-4
format article
fullrecord <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_8505308</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2561492382</sourcerecordid><originalsourceid>FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3</originalsourceid><addsrcrecordid>eNp9Uctu1TAQjRCIlsIPsECW2LAJjB-J7Q0SqspDqtRNu7YcZ3LrKrEvdtJy_4DPxuG2F-iCxchjz5lzZnyq6jWF9xRAfsgAgtEa1hCyVbV4Uh1TwXXdciafHnKqj6oXOd8AgGJUPa-OeCmAAHpc_TwL_ZJscEjmZH3wYVP78uSwJz64hDZjSci0ZDciiT98b2d_i8TZrXV-3pE7P1_HZSZjzJnE4QE52XItjbu4hA0mYkNP4tiXLGH2eV4l69-SRWnC8LJ6Ntgx46v786S6-nx2efq1Pr_48u3003nthBRzrVuNVFtlRafQdV3TCt24wakOG-pcz6VtJLSUgeacco4WNDimBzrIRlvHT6qPe97t0k3YOwxliNFsk59s2plovfm3Evy12cRboxpoOKhC8O6eIMXvC-bZTD47HEcbMC7ZsKalQjOuWIG-fQS9iUsKZb2CUsUMqaksKLZHuVS-MOFwGIaCWY02e6MNrLEabURpevP3GoeWB2cLgO8BuZRWB_5o_4f2F5kltxw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2580827917</pqid></control><display><type>article</type><title>Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men</title><source>Springer Nature</source><creator>Hendrickse, Paul William ; Venckunas, Tomas ; Platkevicius, Justinas ; Kairaitis, Ramutis ; Kamandulis, Sigitas ; Snieckus, Audrius ; Stasiulis, Arvydas ; Vitkiene, Jolanta ; Subocius, Andrejus ; Degens, Hans</creator><creatorcontrib>Hendrickse, Paul William ; Venckunas, Tomas ; Platkevicius, Justinas ; Kairaitis, Ramutis ; Kamandulis, Sigitas ; Snieckus, Audrius ; Stasiulis, Arvydas ; Vitkiene, Jolanta ; Subocius, Andrejus ; Degens, Hans</creatorcontrib><description>While concurrent training is regularly used in older populations, the inverse relationship between fibre size and oxidative capacity suggests that endurance training in resistance-trained individuals may result in some loss of resistance training-induced gains in muscle mass, which may be more pronounced in older people. We investigated the impact of superimposed endurance training in younger (28.5 ± 4.8 years; n  = 8) and older (67.5 ± 5.5 years; n  = 7) highly resistance-trained men. Participants underwent a 10-week endurance cycling training programme consisting of five 6-min intervals at 75% max heart rate (HRmax) separated by 4-min intervals at 90% HRmax. The anatomical cross-sectional area (ACSA) of the thigh muscles, as determined with MRI, was 24% smaller in older compared to younger participants ( p  &lt; 0.001). Although maximal oxygen consumption (VO 2 max) was also lower in the older group ( p  &lt; 0.001), VO 2 max per kg body mass did not differ significantly between younger and older participants. Histological analyses of biopsies of the m. vastus lateralis showed that endurance training induced an increase in succinate dehydrogenase activity in both younger and older participants ( p  ≤ 0.043), and an increase in the number of capillaries around type I fibres ( p  = 0.017). The superimposed endurance training did not induce a significant decrease in thigh ACSA, fibre cross-sectional area, or knee extensor maximum voluntary isometric force. These observations indicate that adding endurance training to resistance training can lead to positive endurance-related adaptations without negative consequences for muscle size and strength in older and younger resistance-trained people.</description><identifier>ISSN: 1439-6319</identifier><identifier>EISSN: 1439-6327</identifier><identifier>DOI: 10.1007/s00421-021-04768-4</identifier><identifier>PMID: 34390401</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Adaptation ; Adaptation, Physiological - physiology ; Adult ; Aerobics ; Aged ; Biomedical and Life Sciences ; Biomedicine ; Biopsy ; Body mass ; Capillaries ; Endurance Training ; Heart rate ; Human Physiology ; Humans ; Leg - diagnostic imaging ; Leg - physiology ; Magnetic Resonance Imaging ; Male ; Muscle contraction ; Muscle, Skeletal - diagnostic imaging ; Muscle, Skeletal - metabolism ; Muscles ; Occupational Medicine/Industrial Medicine ; Original ; Original Article ; Oxygen consumption ; Oxygen Consumption - physiology ; Physical training ; Resistance Training ; Sports Medicine ; Strength training ; Succinate dehydrogenase</subject><ispartof>European journal of applied physiology, 2021-11, Vol.121 (11), p.3161-3172</ispartof><rights>The Author(s) 2021</rights><rights>2021. The Author(s).</rights><rights>The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3</citedby><cites>FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3</cites><orcidid>0000-0003-2769-7816</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,778,782,883,27911,27912</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34390401$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hendrickse, Paul William</creatorcontrib><creatorcontrib>Venckunas, Tomas</creatorcontrib><creatorcontrib>Platkevicius, Justinas</creatorcontrib><creatorcontrib>Kairaitis, Ramutis</creatorcontrib><creatorcontrib>Kamandulis, Sigitas</creatorcontrib><creatorcontrib>Snieckus, Audrius</creatorcontrib><creatorcontrib>Stasiulis, Arvydas</creatorcontrib><creatorcontrib>Vitkiene, Jolanta</creatorcontrib><creatorcontrib>Subocius, Andrejus</creatorcontrib><creatorcontrib>Degens, Hans</creatorcontrib><title>Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men</title><title>European journal of applied physiology</title><addtitle>Eur J Appl Physiol</addtitle><addtitle>Eur J Appl Physiol</addtitle><description>While concurrent training is regularly used in older populations, the inverse relationship between fibre size and oxidative capacity suggests that endurance training in resistance-trained individuals may result in some loss of resistance training-induced gains in muscle mass, which may be more pronounced in older people. We investigated the impact of superimposed endurance training in younger (28.5 ± 4.8 years; n  = 8) and older (67.5 ± 5.5 years; n  = 7) highly resistance-trained men. Participants underwent a 10-week endurance cycling training programme consisting of five 6-min intervals at 75% max heart rate (HRmax) separated by 4-min intervals at 90% HRmax. The anatomical cross-sectional area (ACSA) of the thigh muscles, as determined with MRI, was 24% smaller in older compared to younger participants ( p  &lt; 0.001). Although maximal oxygen consumption (VO 2 max) was also lower in the older group ( p  &lt; 0.001), VO 2 max per kg body mass did not differ significantly between younger and older participants. Histological analyses of biopsies of the m. vastus lateralis showed that endurance training induced an increase in succinate dehydrogenase activity in both younger and older participants ( p  ≤ 0.043), and an increase in the number of capillaries around type I fibres ( p  = 0.017). The superimposed endurance training did not induce a significant decrease in thigh ACSA, fibre cross-sectional area, or knee extensor maximum voluntary isometric force. These observations indicate that adding endurance training to resistance training can lead to positive endurance-related adaptations without negative consequences for muscle size and strength in older and younger resistance-trained people.</description><subject>Adaptation</subject><subject>Adaptation, Physiological - physiology</subject><subject>Adult</subject><subject>Aerobics</subject><subject>Aged</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Biopsy</subject><subject>Body mass</subject><subject>Capillaries</subject><subject>Endurance Training</subject><subject>Heart rate</subject><subject>Human Physiology</subject><subject>Humans</subject><subject>Leg - diagnostic imaging</subject><subject>Leg - physiology</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>Muscle contraction</subject><subject>Muscle, Skeletal - diagnostic imaging</subject><subject>Muscle, Skeletal - metabolism</subject><subject>Muscles</subject><subject>Occupational Medicine/Industrial Medicine</subject><subject>Original</subject><subject>Original Article</subject><subject>Oxygen consumption</subject><subject>Oxygen Consumption - physiology</subject><subject>Physical training</subject><subject>Resistance Training</subject><subject>Sports Medicine</subject><subject>Strength training</subject><subject>Succinate dehydrogenase</subject><issn>1439-6319</issn><issn>1439-6327</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9Uctu1TAQjRCIlsIPsECW2LAJjB-J7Q0SqspDqtRNu7YcZ3LrKrEvdtJy_4DPxuG2F-iCxchjz5lzZnyq6jWF9xRAfsgAgtEa1hCyVbV4Uh1TwXXdciafHnKqj6oXOd8AgGJUPa-OeCmAAHpc_TwL_ZJscEjmZH3wYVP78uSwJz64hDZjSci0ZDciiT98b2d_i8TZrXV-3pE7P1_HZSZjzJnE4QE52XItjbu4hA0mYkNP4tiXLGH2eV4l69-SRWnC8LJ6Ntgx46v786S6-nx2efq1Pr_48u3003nthBRzrVuNVFtlRafQdV3TCt24wakOG-pcz6VtJLSUgeacco4WNDimBzrIRlvHT6qPe97t0k3YOwxliNFsk59s2plovfm3Evy12cRboxpoOKhC8O6eIMXvC-bZTD47HEcbMC7ZsKalQjOuWIG-fQS9iUsKZb2CUsUMqaksKLZHuVS-MOFwGIaCWY02e6MNrLEabURpevP3GoeWB2cLgO8BuZRWB_5o_4f2F5kltxw</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Hendrickse, Paul William</creator><creator>Venckunas, Tomas</creator><creator>Platkevicius, Justinas</creator><creator>Kairaitis, Ramutis</creator><creator>Kamandulis, Sigitas</creator><creator>Snieckus, Audrius</creator><creator>Stasiulis, Arvydas</creator><creator>Vitkiene, Jolanta</creator><creator>Subocius, Andrejus</creator><creator>Degens, Hans</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-2769-7816</orcidid></search><sort><creationdate>20211101</creationdate><title>Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men</title><author>Hendrickse, Paul William ; Venckunas, Tomas ; Platkevicius, Justinas ; Kairaitis, Ramutis ; Kamandulis, Sigitas ; Snieckus, Audrius ; Stasiulis, Arvydas ; Vitkiene, Jolanta ; Subocius, Andrejus ; Degens, Hans</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adaptation</topic><topic>Adaptation, Physiological - physiology</topic><topic>Adult</topic><topic>Aerobics</topic><topic>Aged</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Biopsy</topic><topic>Body mass</topic><topic>Capillaries</topic><topic>Endurance Training</topic><topic>Heart rate</topic><topic>Human Physiology</topic><topic>Humans</topic><topic>Leg - diagnostic imaging</topic><topic>Leg - physiology</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Muscle contraction</topic><topic>Muscle, Skeletal - diagnostic imaging</topic><topic>Muscle, Skeletal - metabolism</topic><topic>Muscles</topic><topic>Occupational Medicine/Industrial Medicine</topic><topic>Original</topic><topic>Original Article</topic><topic>Oxygen consumption</topic><topic>Oxygen Consumption - physiology</topic><topic>Physical training</topic><topic>Resistance Training</topic><topic>Sports Medicine</topic><topic>Strength training</topic><topic>Succinate dehydrogenase</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hendrickse, Paul William</creatorcontrib><creatorcontrib>Venckunas, Tomas</creatorcontrib><creatorcontrib>Platkevicius, Justinas</creatorcontrib><creatorcontrib>Kairaitis, Ramutis</creatorcontrib><creatorcontrib>Kamandulis, Sigitas</creatorcontrib><creatorcontrib>Snieckus, Audrius</creatorcontrib><creatorcontrib>Stasiulis, Arvydas</creatorcontrib><creatorcontrib>Vitkiene, Jolanta</creatorcontrib><creatorcontrib>Subocius, Andrejus</creatorcontrib><creatorcontrib>Degens, Hans</creatorcontrib><collection>SpringerOpen</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Biological Science Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>European journal of applied physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hendrickse, Paul William</au><au>Venckunas, Tomas</au><au>Platkevicius, Justinas</au><au>Kairaitis, Ramutis</au><au>Kamandulis, Sigitas</au><au>Snieckus, Audrius</au><au>Stasiulis, Arvydas</au><au>Vitkiene, Jolanta</au><au>Subocius, Andrejus</au><au>Degens, Hans</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men</atitle><jtitle>European journal of applied physiology</jtitle><stitle>Eur J Appl Physiol</stitle><addtitle>Eur J Appl Physiol</addtitle><date>2021-11-01</date><risdate>2021</risdate><volume>121</volume><issue>11</issue><spage>3161</spage><epage>3172</epage><pages>3161-3172</pages><issn>1439-6319</issn><eissn>1439-6327</eissn><abstract>While concurrent training is regularly used in older populations, the inverse relationship between fibre size and oxidative capacity suggests that endurance training in resistance-trained individuals may result in some loss of resistance training-induced gains in muscle mass, which may be more pronounced in older people. We investigated the impact of superimposed endurance training in younger (28.5 ± 4.8 years; n  = 8) and older (67.5 ± 5.5 years; n  = 7) highly resistance-trained men. Participants underwent a 10-week endurance cycling training programme consisting of five 6-min intervals at 75% max heart rate (HRmax) separated by 4-min intervals at 90% HRmax. The anatomical cross-sectional area (ACSA) of the thigh muscles, as determined with MRI, was 24% smaller in older compared to younger participants ( p  &lt; 0.001). Although maximal oxygen consumption (VO 2 max) was also lower in the older group ( p  &lt; 0.001), VO 2 max per kg body mass did not differ significantly between younger and older participants. Histological analyses of biopsies of the m. vastus lateralis showed that endurance training induced an increase in succinate dehydrogenase activity in both younger and older participants ( p  ≤ 0.043), and an increase in the number of capillaries around type I fibres ( p  = 0.017). The superimposed endurance training did not induce a significant decrease in thigh ACSA, fibre cross-sectional area, or knee extensor maximum voluntary isometric force. These observations indicate that adding endurance training to resistance training can lead to positive endurance-related adaptations without negative consequences for muscle size and strength in older and younger resistance-trained people.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>34390401</pmid><doi>10.1007/s00421-021-04768-4</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0003-2769-7816</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1439-6319
ispartof European journal of applied physiology, 2021-11, Vol.121 (11), p.3161-3172
issn 1439-6319
1439-6327
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_8505308
source Springer Nature
subjects Adaptation
Adaptation, Physiological - physiology
Adult
Aerobics
Aged
Biomedical and Life Sciences
Biomedicine
Biopsy
Body mass
Capillaries
Endurance Training
Heart rate
Human Physiology
Humans
Leg - diagnostic imaging
Leg - physiology
Magnetic Resonance Imaging
Male
Muscle contraction
Muscle, Skeletal - diagnostic imaging
Muscle, Skeletal - metabolism
Muscles
Occupational Medicine/Industrial Medicine
Original
Original Article
Oxygen consumption
Oxygen Consumption - physiology
Physical training
Resistance Training
Sports Medicine
Strength training
Succinate dehydrogenase
title Endurance training-induced increase in muscle oxidative capacity without loss of muscle mass in younger and older resistance-trained men
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-15T16%3A58%3A20IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Endurance%20training-induced%20increase%20in%20muscle%20oxidative%20capacity%20without%20loss%20of%20muscle%20mass%20in%20younger%20and%20older%20resistance-trained%20men&rft.jtitle=European%20journal%20of%20applied%20physiology&rft.au=Hendrickse,%20Paul%20William&rft.date=2021-11-01&rft.volume=121&rft.issue=11&rft.spage=3161&rft.epage=3172&rft.pages=3161-3172&rft.issn=1439-6319&rft.eissn=1439-6327&rft_id=info:doi/10.1007/s00421-021-04768-4&rft_dat=%3Cproquest_pubme%3E2561492382%3C/proquest_pubme%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c474t-969e19a8a4b8ecbb56495cfc8be51ccd37a5706120933133ea090c29f1f759ac3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2580827917&rft_id=info:pmid/34390401&rfr_iscdi=true