Effects of physical exercise on food intake and body weight: experimental study in tumor-bearing rats
Appl. cancer res
;
26(2): 56-60, Dez. 2006. ilus
Artigo
em Inglês
| LILACS, Inca
| ID: lil-445858
ABSTRACT
Cancer cachexia is frequently observed in tumor-bearing patients or animals with diabetes-like syndrome. Physical exercise has been shown to reduce insulin requirements in diabetics. Objectives:
To evaluate the effects of daily physical exercise on foodintake and body weight in an experimental tumor-bearing rat model (Walker 256 carcinosarcoma).Methods:
Wistar adult rats were submitted to a similar daily manipulation protocol except for physical exercise (running pad continuously for 60 minutes/day), and randomly distributed as to the presence of tumor or exercise into eight groups Group 1 (Saline day 1 + No exercise for 50 days), Group 2 (Tumor day 1 + No exercise for 50 days), Group 3 (Saline day 1 + Exercise for 50 days), Group 4 (Tumor day 1 + Exercise for 50 days), Group 5 (Tumor day 1 + Exercise for 25 days + No exercise for following 25 days), Group6 (Tumor day 1 + No exercise for 25 days + Exercise for following 25 days), Group 7 (Exercise for 25 days + Tumor day 25 + Exercise for following 25 days), Group 8 (Exercise for 25 days + Saline day 25 + Exercise for following 25 days).Results:
Body weight was significantly lower in Exercise (mean coefficient 1.29 ± 0.17), than in No exercise (mean coefficient 2.2 ± 0.16) - p<0.001. In the tumor-bearing rats, exercise did not affect significantly daily food intake - p=0.415.Conclusions:
Daily physical exercise significantly affected body weight in this animal model, but did not have impact on food intake.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Peso Corporal
/
Caquexia
/
Exercício Físico
/
Interpretação Estatística de Dados
/
Neoplasias
Limite:
Animais
Idioma:
Inglês
Revista:
Appl. cancer res
Assunto da revista:
Neoplasias
Ano de publicação:
2006
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
University of Sao Paulo/BR
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