[Effects of acute exercise on postprandial lipemia in sedentary men].
OBJECTIVE
To examine the effects of a single session of isometric physical exercise on postprandial triglyceridemia in sedentary male individuals with fasting triglycerides values < 150 mg/dl (NTG) or > " 150 mg/dl (TG ALT).


METHODS
Twenty-seven individuals (10 NTG and 17 TG ALT), aged between 30-55 years were assessed in the study. Triglycerides were determined in the beginning, and at two, four and six hours after the oral ingestion of a solution with 50 g/m2 of fat in two occasions: at rest and after treadmill isometric exercise.


RESULTS
Acute exercise did not affect the levels of postprandial triglycerides or the area under the curve (AUC) of triglycerides. However, the abnormal pattern of postprandial lipemia curve was associated with higher basal triglyceridemia with exercise (basal TG: 147 +/- 90 vs. 238 +/- 89 mg/dl, p = 0.02) and without exercise (basal TG: 168 +/- 93 vs. 265 +/- 140 mg/dl, p = 0.04). Analysis of the receiver operating characteristics (ROC) curves showed cut-off values for basal triglycerides with exercise of 166.5 mg/dl (sensitivity: 0.78; specificity: 0.72) and AUC of 0.772 [CI 95%: 0.588-0.955], and without exercise of 172 mg/dl (sensitivity: 0.78; specificity: 0.61) and AUC: 0.722 [CI 95%: 0.530-0.914].


CONCLUSIONS
Acute exercise did not affect postprandial triglyceridemia in sedentary male individuals, and basal triglyceride levels are predictors of an abnormal response of postprandial triglycerides.
Teixeira
Mônica
M
Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP.
Kasinski
Nelson
N
Izar
Maria Cristina de Oliveira
MC
Barbosa
Luiz Alberto
LA
Novazzi
José Paulo
JP
Pinto
Leonor Almeida
LA
Tufik
Sérgio
S
Leite
Turíbio Ferreira
TF
Fonseca
Francisco Antonio Helfenstein
FA
D000328:Adult; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D006801:Humans; D006949:Hyperlipidemias / Q000097:blood* / Q000503:physiopathology; D008055:Lipids / Q000097:blood*; D008297:Male; D008875:Middle Aged; D019518:Postprandial Period; D012372:ROC Curve; D014280:Triglycerides / Q000097:blood
D008055:Lipids; D014280:Triglycerides