FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2238529892> ?p ?o ?g. }

• W2238529892 endingPage "679" @default.
• W2238529892 startingPage "678" @default.
• W2238529892 abstract "1. We compared the dynamics of the metatarsophalangeal (MTP) joint of the cat's hind paw and the motor patterns of two short and four long muscles of the digits for two walking forms, forward (FWD) and backward (BWD). Kinematic (angular displacements) data digitized from high-speed ciné film and electromyographic (EMG) data were synchronized and assessed for bouts of treadmill walking. Kinetic data (joint forces) were calculated from kinematic and anthropometric data with the use of inverse-dynamic calculations in which the MTP joint net torque was divided into gravitational, motion-dependent, ground contact (absent for swing), and muscle torque components. Swing-phase kinetics were calculated from treadmill steps and stance-phase kinetics from overground steps in which one hind paw contacted a miniature force platform embedded in the walkway. 2. The plantar angle at the intersection of the metatarsal and phalangeal segmental lines was used to measure MTP angular displacements. During swing for both walking forms, the MTP joint flexed (F) and then extended (E); however, the F-E transition occurred at the onset of FWD swing and at the end of BWD swing. For FWD walking, the MTP joint extended at a constant velocity during most of stance as the cat's weight rotated forward over the paw. During the unweighting phase at the end of stance, the MTP joint flexed rapidly before paw lift off. For BWD walking, the MTP joint extended briefly at stance onset (similar to a yield) and then flexed at a constant velocity as the cat's weight rotated backward over the paw. At the end of stance, the MTP joint extended and then flexed slightly as the paw was unweighted before paw lift off. 3. For both forms of walking, three of the six muscles tested were recruited just before paw contact and remained active for most (75-80%) of stance for both walking forms: plantaris (PLT), flexor hallucis longus (FHL), and flexor digitorum brevis (FDB). Their recruitment contributed to the flexor muscle torque at the MTP joint during most of FWD and BWD stance and was responsible for the absorption of mechanical power at the MTP joint for FWD stance and generation of mechanical power at the MTP joint during BWD stance. Also, the FHL and PLT, along with the soleus (SOL; also recorded in this study), contributed to an extensor muscle torque (described in paper IV of this series) and the generation of mechanical power at the ankle joint during stance of FWD and BWD walking. 4. The timing of activity for three muscles recruited during FWD swing was distinct for the two walking forms. The hallmark burst of the flexor digitorum longus (FDL)--a single burst, brief in duration and high in amplitude--occurred at the end of FWD swing (as the toes flexed rapidly) but shifted to the onset of BWD stance (as the claws protruded and toes extended) during paw weighting. The extensor digitorum longus (EDL) was recruited after paw off and was active for most of FWD swing; its activity contributed to an extensor muscle torque at the MTP joint and a flexor muscle torque at the ankle joint. For BWD walking, EDL recruitment shifted to an earlier phase in the step cycle and coincided with toe extension, which occurred at the end of stance before paw lift off. This pre-lift off activity continued into the first part of swing and contributed to an extensor muscle torque at the MTP joint and a flexor muscle torque at the ankle.(ABSTRACT TRUNCATED AT 250 WORDS)" @default.
• W2238529892 created "2016-06-24" @default.
• W2238529892 creator A5084230183 @default.
• W2238529892 creator A5087692165 @default.
• W2238529892 date "1996-02-01" @default.
• W2238529892 modified "2023-10-18" @default.
• W2238529892 title "Adaptive control for backward quadrupedal walking VI. metatarsophalangeal joint dynamics and motor patterns of digit muscles" @default.
• W2238529892 doi "https://doi.org/10.1152/jn.1996.75.2.678" @default.
• W2238529892 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/8714644" @default.
• W2238529892 hasPublicationYear "1996" @default.
• W2238529892 type Work @default.
• W2238529892 sameAs 2238529892 @default.
• W2238529892 citedByCount "30" @default.
• W2238529892 countsByYear W22385298922012 @default.
• W2238529892 countsByYear W22385298922015 @default.
• W2238529892 countsByYear W22385298922018 @default.
• W2238529892 countsByYear W22385298922020 @default.
• W2238529892 crossrefType "journal-article" @default.
• W2238529892 hasAuthorship W2238529892A5084230183 @default.
• W2238529892 hasAuthorship W2238529892A5087692165 @default.
• W2238529892 hasConcept C105702510 @default.
• W2238529892 hasConcept C108439606 @default.
• W2238529892 hasConcept C121332964 @default.
• W2238529892 hasConcept C127413603 @default.
• W2238529892 hasConcept C144171764 @default.
• W2238529892 hasConcept C18555067 @default.
• W2238529892 hasConcept C1862650 @default.
• W2238529892 hasConcept C187523126 @default.
• W2238529892 hasConcept C18903297 @default.
• W2238529892 hasConcept C24890656 @default.
• W2238529892 hasConcept C2524010 @default.
• W2238529892 hasConcept C2781197403 @default.
• W2238529892 hasConcept C2781464450 @default.
• W2238529892 hasConcept C33923547 @default.
• W2238529892 hasConcept C39920418 @default.
• W2238529892 hasConcept C41008148 @default.
• W2238529892 hasConcept C44154836 @default.
• W2238529892 hasConcept C65655974 @default.
• W2238529892 hasConcept C66938386 @default.
• W2238529892 hasConcept C71924100 @default.
• W2238529892 hasConcept C74650414 @default.
• W2238529892 hasConcept C86803240 @default.
• W2238529892 hasConcept C96332660 @default.
• W2238529892 hasConcept C97355855 @default.
• W2238529892 hasConcept C99508421 @default.
• W2238529892 hasConceptScore W2238529892C105702510 @default.
• W2238529892 hasConceptScore W2238529892C108439606 @default.
• W2238529892 hasConceptScore W2238529892C121332964 @default.
• W2238529892 hasConceptScore W2238529892C127413603 @default.
• W2238529892 hasConceptScore W2238529892C144171764 @default.
• W2238529892 hasConceptScore W2238529892C18555067 @default.
• W2238529892 hasConceptScore W2238529892C1862650 @default.
• W2238529892 hasConceptScore W2238529892C187523126 @default.
• W2238529892 hasConceptScore W2238529892C18903297 @default.
• W2238529892 hasConceptScore W2238529892C24890656 @default.
• W2238529892 hasConceptScore W2238529892C2524010 @default.
• W2238529892 hasConceptScore W2238529892C2781197403 @default.
• W2238529892 hasConceptScore W2238529892C2781464450 @default.
• W2238529892 hasConceptScore W2238529892C33923547 @default.
• W2238529892 hasConceptScore W2238529892C39920418 @default.
• W2238529892 hasConceptScore W2238529892C41008148 @default.
• W2238529892 hasConceptScore W2238529892C44154836 @default.
• W2238529892 hasConceptScore W2238529892C65655974 @default.
• W2238529892 hasConceptScore W2238529892C66938386 @default.
• W2238529892 hasConceptScore W2238529892C71924100 @default.
• W2238529892 hasConceptScore W2238529892C74650414 @default.
• W2238529892 hasConceptScore W2238529892C86803240 @default.
• W2238529892 hasConceptScore W2238529892C96332660 @default.
• W2238529892 hasConceptScore W2238529892C97355855 @default.
• W2238529892 hasConceptScore W2238529892C99508421 @default.
• W2238529892 hasIssue "2" @default.
• W2238529892 hasLocation W22385298921 @default.
• W2238529892 hasLocation W22385298922 @default.
• W2238529892 hasOpenAccess W2238529892 @default.
• W2238529892 hasPrimaryLocation W22385298921 @default.
• W2238529892 hasRelatedWork W1980265911 @default.
• W2238529892 hasRelatedWork W1984522950 @default.
• W2238529892 hasRelatedWork W1998360778 @default.
• W2238529892 hasRelatedWork W2068728865 @default.
• W2238529892 hasRelatedWork W2116766908 @default.
• W2238529892 hasRelatedWork W2238529892 @default.
• W2238529892 hasRelatedWork W2283683776 @default.
• W2238529892 hasRelatedWork W2295172496 @default.
• W2238529892 hasRelatedWork W2519070115 @default.
• W2238529892 hasRelatedWork W331103622 @default.
• W2238529892 hasVolume "75" @default.
• W2238529892 isParatext "false" @default.
• W2238529892 isRetracted "false" @default.
• W2238529892 magId "2238529892" @default.
• W2238529892 workType "article" @default.