Exercising for food: bringing the laboratory closer to nature
| Autor: | Danusa Dias Soares, Débora Romualdo Lacerda, Luiz Oswaldo Carneiro Rodrigues, Ivana A. T. Fonseca, Milene R. M. Lima, Fernanda de Assis Araújo, Robert J. Young, Renata Lane de Freitas Passos, Washington Pires |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Time Factors Adult male Post hoc Physiology Physical Exertion Motor Activity Aquatic Science Biology Body Temperature Running Eating Animal science Statistical significance Animals Rats Wistar Exercise physiology Molecular Biology Ecology Evolution Behavior and Systematics computer.programming_language Analysis of covariance Communication business.industry sed Repeated measures design Rats Insect Science Animal Science and Zoology Analysis of variance business computer |
| Zdroj: | Journal of Experimental Biology. |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.108191 |
| Popis: | Traditionally, exercise physiology experiments have borne little resemblance to how animals express physical activity in the wild. In this experiment, 15 adult male rats were divided into three equal-sized groups: exercise contingent (CON), non-exercise contingent (NON) and sedentary (SED). The CON group was placed in a cage with a running wheel, where the acquisition of food was contingent upon the distance run. Every three days the distance required to run to maintain food intake at free feeding levels was increased by 90% in comparison to the previous 3 days. The NON group were housed identically to the CON group, but food acquisition was not dependent upon running in the wheel. Finally, the SED group were kept in small cages with no opportunity to perform exercise. A two-way ANOVA with repeated measures was used to determine significant differences in responses between the experimental phases and treatment groups and ANCOVA to analyse growth and tissue mass variables with body length and body mass used separately as covariates. A post hoc Tukey's test was used to indicate significant differences. A Pearson's correlation was used to test the relationship between the distance travelled by the animal and the distance/food ratio. The level of significance was set at p |
| Databáze: | OpenAIRE |
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