Mišićno pamćenje

undergraduate thesis

• Title (english): Muscle memory
• Author: Bruna Faber
• Mentor: Zoran Tadić (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2023-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Pojam „mišićno pamćenje“ odnosi se na prilagodbu mišića, odnosno mišićnih vlakana, na određene
uvjete; svojstva koje mišić stekne ovim prilagodbama vidljiva su kada početni podražaj više nije
prisutan ali i kada se on nakon dužeg vremena ponovno primjeni. Restrikcija hranjivih tvari tijekom
fetalnog razvoja i pojedine epigenetičke modifikacije koje pritom nastaju, prilagođavaju mišićne i
satelitne stanice na stresne uvjete, koji nakon nekog vremena prestaju. Međutim, dobivena svojstva
... More ostaju prisutna, makar početnog podražaja više nema. Ove prilagodbe najčešće ostavljaju negativne
posljedice na organizam. S druge strane, prilagodbe na visoke fizičke napore u obliku pamćenja
hipertrofije ili povećanih epigenetičkih modifikacija uzrokovanih vježbanjem gledaju se kao
pozitivan doprinos organizmu. U slučaju hipertrofije, pamćenje se temelji na preuzimanju jezgri
od satelitnih stanica, prije hipertrofičkog rasta, zbog potrebe mišićnog vlakna za savladavanjem
velikog napora. Jezgre se akumuliraju i pri korištenju steroida. Mišići koji su preuzeli mnogo
jezgara i time povećali svoju snagu, nakon atrofije zbog prestanka izlaganja takvom naporu, više
nisu u stalnom stanju savladati količinu opterećenje koju su mogli prije atrofije - što doprinosi
uštedi stanične energije. No, ta se sposobnost mišiću brzo povrati kada je u uvjetima potrebe za
ponovnim razvojem te razine snage. Less

Abstract (english)

The term "muscle memory" refers to the adaptation of muscles, or muscle fibers, to certain
conditions. The properties that the muscle acquires through these adaptations are visible when the
initial stimulus is no longer present and when the same stimuli are applied again after a long time.
Nutrient restriction during fetal development causes a stressful environment for early muscle fibers
and stem cells. This contributes to disorders in cell metabolism by directly impacting the fiber
... More building process or by certain epigenetic modifications. Cells do eventually leave this conditions,
but acquired properties remain present, even though the initial stimulus is no longer present. These
adaptations usually leave negative consequences on the organism. On the other hand, adaptations
to high physical efforts in the form of memory hypertrophy or increased epigenetic modifications
caused by exercise are seen as a positive contribution. In the case of hypertrophy memory, the
muscle's abilities are not always in a state of overcoming the greatest previously encountered load,
but this ability is quickly recovered when necessary – this also shows the role of muscle memory
in the energy saving process. Less

• Keywords: skeletni mišići; satelitne stanice; hipertrofija; epigenetika; prilagodba
• Keywords (english): skeletal muscles; satellite cells; hypertrophy; epigenetics; adaptation
• Language: croatian
• URN:NBN: urn:nbn:hr:217:085972
• Study programme: Title: Ecology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-25 12:42:11