[Acute responses on lipid profile by practicing cycling].
BACKGROUND
it has been demonstrated an association between the increase in physical activity and improvements in the lipid profile.


OBJECTIVE
to evaluate changes in the serum lipids caused by spinning practice.


METHODS
nine men and twelve women were studied, they underwent to an initial evaluation that included a treadmill effort test, in order to establish the physical fitness level. With the purpose of determine the lipids change, a blood sample was obtained before and after a typical spinning session. The design was prospective, experimental, longitudinal and comparative study. Student's t-test and regression model were used to determine the changes in the lipids concentrations, and its relation with the physical fitness level. A p value < or = 0.05 was required for statistical significance.


RESULTS
lipids increase concentrations were observed (p < 0.05), except at triglycerides in men, in which it had a decrease. It was statistically significant relation between the physical fitness level and the percentage of high-density lipoproteins variation (r = 0.44, p = 0.046).


CONCLUSIONS
the percentage of high-density lipoproteins variation was greater when the values of VO(2)max were higher. At greater level of medical fitness greater positive answer in this lipoproteins. In the case of the rest serum lipids, it was not observed relation between the level of medical fitness and the percentage of variation due to the execution of the spinning session.
Díaz-Ríos
Lillian Karina
LK
Departamento de Fisiología, Club Deportivo Punto Verde, Mexico. harinitta@yahoo.com.mx
Rivera-Cisneros
Antonio Eugenio
AE
Macías-Cervantes
Maciste Habacuc
MH
Sánchez-González
Jorge Manuel
JM
Guerrero-Martínez
Francisco Javier
FJ
D000328:Adult; D002784:Cholesterol / Q000097:blood*; D015444:Exercise; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D010809:Physical Fitness; D011446:Prospective Studies; D014280:Triglycerides / Q000378:metabolism
D014280:Triglycerides; D002784:Cholesterol