Vol. 7, No 1, 2009 pp.55 - 67
UDC 796:616.127-005.0     796:616.519
Original empirical article

THE EFFECTS OF A PHYSICAL ACTIVITY PROGRAM ON THE VOLUME AND
SUBCUTANEOUS FATTY TISSUE AMONG PEOPLE WHO SUFFERED MYOCARDIAL INFARCTIONS
Saša Pantelić, Dušica Jović, Ratomir Đurašković, Radmila Kostić, Dobrica Živković
The Faculty of Sport and Physical Education, University of Niš, Serbia
E-mail: spantelic2002@yahoo.com

Abstract. Our research included 60 male subjects aged 50 to 60, 30 of which made up the experimental group, and the remaining 30 made up the control group. We studied the effects of a physical activity program on the changes in volume and the subcutaneous fatty tissue of individuals who had suffered myocardial infarctions (MI). The experimental physical activity program was realized over a period of 21 days, and the activities were divided into three parts: 1) gymnastics exercises, 2) walking along health trails and 3) riding on a bicycle ergometer. The overall duration of each daily exercise session was 45 minutes at the beginning and 60 minutes at the end of the program. Ten variables were included in the research, which covered the area of voluminosity and subcutaneous fatty tissue. We calculated the basic descriptive parameters, and in order to determine the differences between the groups at the initial and final measuring and the differences between the initial and final measuring of each group, we used the t-test. We used a multivaraite and univariate analysis of covariance (MANCOVA/ANCOVA) to determine the actual effects of the physical activity. The level of statistical significance was 0.05. All of the statistical analyses were calculated with the help of the Statistica 6.0 statistics package. The results from the final measuring have indicated that the realized physical acitivity program had a positive effect on the changes in the volume and subcutaneous fatty tissue of the subjects in the experimental group, or in other words, that it led to changes in body mass (р= .000), average thorax volume (р= .003), abdomen volume (р= .000), thigh volume (р= .021), abdominal skin folds (р= .032) and thigh skin folds (р= .003). Our research confirmed the positive effects of the program of physical activity on changes in volume and subcutaneous fatty tissue in the sense that it led to their decrease among people who had suffered myocardial infarctions.
Key words:  physical activity, myocardial infarction, voluminosity, subcutaneous fatty tissue

EFEKTI PROGRAMA FIZIČKIH AKTIVNOSTI NA VOLUMEN
I POTKOŽNO MASNO TKIVO OSOBA SA INFARKTOM MIOKARDA
Istraživanjem je obuhvaćeno 60 muškaraca hronološke starosti 50 do 60 godina, od kojih je 30 činilo eksperimentalnu, a 30 kontrolnu grupu. Istraživani su efekti programa fizičkih aktivnosti na promene volumena i potkožnog masnog tkiva osoba sa infarktom miokarda. Eksperimentalni program fizičkih aktivnosti realizovan je ukupno 21 dan, a aktivnosti su podeljene na tri dela i to: 1) gimnastičke vežbe, 2) hodanje na stazama zdravlja i 3) vožnja na bicikl ergometru. Ukupno vreme svakodnevnog vežbanja iznosilo je od 45 minuta na početku do 60 minuta na kraju programa. Istraživanjem je obuhvaćeno 10 mera koje su pokrivale prostor voluminoznosti i potkožnog masnog tkiva. Izračunati su osnovni parametri deskriptivne statistike, a za utvrđivanje razlika između grupa na inicijalnom i na finalnom merenju i razlika između inicijalnog i finalnog merenja kod svake grupe, primenjen je t-test. Multivarijantna i univariajntna analiza kovarijanse (MANKOVA/ANKOVA) upotrebljena je za utvrđivanje realnih ostvarenih efekata fizičkih aktivnosti. Nivo statističke značajnosti bio je 0.05. Sve statističke analize izračunate su pomoću statističkog paketa Statistica 6.0. Rezultati na finalnom merenju pokazali su da je realizovani program fizičkih aktivnosti imao pozitivne efekte na promene volumena i potkožnog masnog tkiva ispitanika eksperimetalne grupe, odnosno da je doveo do promena kod telesne mase (r= .000), srednjeg obima grudnog koša (r= .003), obima trbuha (r= .000), obima butine (r= .021), kožnog nabora na trbuhu (r= .032) i kožnog nabora butine (r= .003). Istraživanje je potvrdilo pozitivne efekte programa fizičkih aktivnosti na promene volumena i potkožnog masnog tkiva u smislu njihovog smanjenja kod osoba sa infarktom miokarda.
Ključne reči: fizička aktivnost, infarkt miokarda, voluminoznost, potkožno masno tkivo