Muscle Function analysis with using the Logger Lite Software In Biology Classes in Secondary Scholl

Jožica Brecl
[email protected]
Škofijska gimnazija Antona Martina Slomška

Predstavitev

Povzetek

V oktobru in novembru 2011 smo v 2. letnikih pri urah za vaje pri predmetu biologija izvedli računalniško podprto laboratorijsko raziskovanje delovanja mišic. S pomočjo laborantke ge. Brigite Žaucer smo izvedli testiranje segrevanja mišic, mišične moči in elektromiografijo (EMG). Po 4 dijaki so s pomočjo navodil samostojno izvedli vaje. Merili so segrevanje dvoglave in troglave mišice ter ugotavljali vzroke za razlike med začetno in končno temperaturo. Izmerili so mišično moč leve in desne roke, repetitivno moč in mišično moč med palcem in drugimi prsti na desni roki ter pojasnili razlike med spoloma, razlike v delovanju mišičnih vlaken in v moči med različnimi kombinacijami prstov desne roke. Izmerili so tudi mišično aktivnost žvekalne mišice in pojasnili, kako delujejo mišice, kadar žvečimo žvečilni gumi ali korenje. Dijaki so zapisovali hipoteze in pričakovane dobljene podatke med seboj primerjali, kar jih je vzpodbudilo k razmišljanju o gibalnih vajah, ki bi izboljšale dobljene rezultate meritev. Razumevanje dobljenih rezultatov smo preverili in ocenili s tremi nalogami. Ugotavljamo, da dijaki znajo meriti, zbirati, zapisovati in analizirati podatke, manj zainteresirani so pri postavljanju hipotez. Nadarjeni dijaki so bili sposobni postaviti hipoteze in povezati praktično dobljene rezultate s teoretičnim znanjem.

Ključne besede
IKT, računalniško podprto laboratorijsko delo, biologija, delovanje mišic, digitalna kompetenca

Abstract

In October and November 2011 during biology lessons for the 2nd grade students, we implemented computer supported laboratory research of muscles. Our laboratory assistant, Mrs Brigit Žaucer, helped us to perform the testing of warming up the muscles, their strength and electromyography (EMG). After the instructions had been given, 4 students in each group performed the exercise independently. They were estimating the warming up of »double-headed« and »three-headed« muscles and  observing the causes for differences between the initial and final temperatures. They measured the muscle strength of the left and right hands, repetitive muscle strength and power between the thumb and other fingers on the right hand, and clarified the differences between the sexes, differences in muscle fiber and the power of the different combinations of fingers of the right hand. They also measured the muscle activity of the masseter muscle, and explained how the muscles work when we chew a piece of chewing gum or a carrot. Students wrote down the hypotheses and the expected results data were compared with each student's  results, which encouraged them to think of motion exercises that would improve the results of the obtained measurements . Understanding of the obtained  results was checked and evaluated with three tasks. We assume that students are able to measure, collect, record and analyze data. They are less interested in the case of setting the hypotheses. Gifted students were able to set up hypotheses and integrate the practical results into their theoretical knowledge.
    
Key words
ICT, computer supported laboratory work, muscle function, digital competence