Passive tensile stress and energy of the human hamstring muscles in vivo

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Deutscher übersetzter Titel:Muskelspannung und Energieabsorption bei passiver Dehnung in den menschlichen Hamstrings in vivo
Autor:Magnusson, S.P.; Aagaard, P.; Simonsen, E.B.; Bojsen-Moeller, F.
Erschienen in:Scandinavian journal of medicine & science in sports
Veröffentlicht:10 (2000), 6, S. 351-359, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource Elektronische Ressource (online)
Sprache:Englisch
ISSN:0905-7188, 1600-0838
DOI:10.1034/j.1600-0838.2000.010006351.x
Schlagworte:
Online Zugang:
Erfassungsnummer:PU199912409367
Quelle:BISp
id PU199912409367
bisp-collection db
format Literatur
last_indexed 2023-11-23T08:36:59Z
first_indexed 2001-07-24T13:56:37Z
publication_source BISp
subformat Zeitschriftenartikel
hierarchy_top_id JO00000001282
hierarchy_parent_id JOI200000060001282
hierarchy_top_title Scandinavian journal of medicine & science in sports
hierarchy_parent_title Scandinavian journal of medicine & science in sports, 2000, 6
is_hierarchy_id PU199912409367
is_hierarchy_title Passive tensile stress and energy of the human hamstring muscles in vivo
hierarchy_sequence 0351
recordtype bisparticle
publishDate 2000
publishDate_facet 2000
language eng
title Passive tensile stress and energy of the human hamstring muscles in vivo
spellingShingle Passive tensile stress and energy of the human hamstring muscles in vivo
Energieumwandlung
Magnetresonanztomographie
Muskeldehnung
Muskelelastizität
Muskelspannung
Muskulatur, ischiocrurale
Skelettmuskulatur
Sportmedizin
title_sort passive tensile stress and energy of the human hamstring muscles in vivo
title_short Passive tensile stress and energy of the human hamstring muscles in vivo
title_alt Muskelspannung und Energieabsorption bei passiver Dehnung in den menschlichen Hamstrings in vivo
title_alt_lang deu
media_type Gedruckte Ressource
Elektronische Ressource (online)
city Oxford
abstract The present study measured passive resistance to stretch in the hamstring muscles during a standardized stretch maneuver to estimate tensile forces and energy of the individual hamstring muscles in 7 flexible and 6 inflexible persons defined according to joint range of motion. Using a dynamometer, knee joint moment was measured during slow passive knee extension to a maximal angle (dynamic phase) followed by a 90-s static phase. Cross-sectional areas (CSA) of the separate hamstring muscles were obtained with magnetic resonance (MR) imaging. Mathematical modeling was used to calculate instantaneous muscle length and joint moment arm for each muscle. Subsequently, passive muscle tension (N/cm**2) was calculated based on moment arm lengths, knee joint moments, and CSA. Maximal toIerated joint angle was greater in flexible (delta 1.30+/-0.06 rad) than inflexible (delta 0.84+/-0.06 rad) subjects, P<0.01. The peak tension at maximal angle was greater in flexible (81.8+/-12.5 N/cm**2) than inflexible subjects (29.3+/-4.1 N/cm**2), P<0.001. For the separate muscles the overall change in muscle length (delta cm) and moment arm (delta cm) differed between groups, P<0.01. Similarly, muscle stiffness (delta tension/delta muscle length) was greater in flexible than inflexible subjects in the final 3 cm, P<0.01, and in the final 20% of length change, P<0.01. Absorbed energy (mJ/cm**2) was greater in flexible than inflexible subjects in the final 40% of length change, P<0.05. These data show that flexible persons can attain a greater angle of stretch with an accompanying greater tensile stress and energy than inflexible persons due to an apparent greater tolerance to the externally applied load, and larger change in moment arm. The obtained stress data appear to be in the toe region of a 'classical' stress-strain curve, and energy rather than stiffness may therefore be more appropriate to analyze during the stretch procedure. Verf.-Referat
abstract_lang eng
abstract_type author
author2 Magnusson, S.P.
Aagaard, P.
Simonsen, E.B.
Bojsen-Moeller, F.
author_facet Magnusson, S.P.
Aagaard, P.
Simonsen, E.B.
Bojsen-Moeller, F.
author2-role Autor
Autor
Autor
Autor
author2-authorityid P74362



author_author_facet Magnusson, S.P.
Aagaard, P.
Simonsen, E.B.
Bojsen-Moeller, F.
author2-synonym Magnusson, Stig Peter



author2_hierarchy_facet 0/Autor/
1/Autor/Magnusson, S.P./
0/Autor/
1/Autor/Aagaard, P./
0/Autor/
1/Autor/Simonsen, E.B./
0/Autor/
1/Autor/Bojsen-Moeller, F./
doi 10.1034/j.1600-0838.2000.010006351.x
spelling 10.1034/j.1600-0838.2000.010006351.x
0905-7188
1600-0838
SMSSEO
1077418-x
Energieumwandlung
Magnetresonanztomographie
Muskeldehnung
Muskelelastizität
Muskelspannung
Muskulatur, ischiocrurale
Skelettmuskulatur
Sportmedizin
energy conversion
hamstrings
magnetic resonance tomography
muscle elasticity
muscle stretching
muscle tension
skeletal muscles
sports medicine
Dehnung
Muskeldehnbarkeit
Muskulatur
Skelettmuskel
Muskel
Medizin
Geschichte der Medizin
Untersuchung, sportmedizinische
Wasserdampf
magnetic resonance imaging
Passive tensile stress and energy of the human hamstring muscles in vivo
PU199912409367
199912409367
url https://dx.doi.org/10.1034/j.1600-0838.2000.010006351.x
url-type fulltext
url-free 0
issn 0905-7188
1600-0838
coden SMSSEO
zdb 1077418-x
location_hierarchy_facet 0/Großbritannien/
1/Großbritannien/England/
topic Energieumwandlung
Magnetresonanztomographie
Muskeldehnung
Muskelelastizität
Muskelspannung
Muskulatur, ischiocrurale
Skelettmuskulatur
Sportmedizin
topic_facet Energieumwandlung
Magnetresonanztomographie
Muskeldehnung
Muskelelastizität
Muskelspannung
Muskulatur, ischiocrurale
Skelettmuskulatur
Sportmedizin
topic_en energy conversion
hamstrings
magnetic resonance tomography
muscle elasticity
muscle stretching
muscle tension
skeletal muscles
sports medicine
topic_en_facet energy conversion
hamstrings
magnetic resonance tomography
muscle elasticity
muscle stretching
muscle tension
skeletal muscles
sports medicine
synonym Dehnung
Muskeldehnbarkeit
Muskulatur
Skelettmuskel
Muskel
Medizin
Geschichte der Medizin
Untersuchung, sportmedizinische
Wasserdampf
synonym_en magnetic resonance imaging
journal_facet Scandinavian journal of medicine & science in sports
container_title Scandinavian journal of medicine & science in sports
container_volume 10
container_issue 6
container_start_page S. 351-359
has_references 1
institution BISp
journal_fac JO00000001282
journal_year 2000
journal_issue 6
_version_ 1810305979289436160
score 13,2632065