XXXX consumption and physical fitness among young adults.

@entity167 @entity1 @entity1068 @entity65
The relationship between @entity167 consumption and physical fitness was analyzed using data from the baseline examination of the Coronary Artery Disease Risk Development In Young Adults study (CARDIA), a longitudinal study of the evolution of risk factors for @entity65 in Black and White @entity1 and @entity1 aged 18-30 years. Two parameters of submaximal exercise treadmill testing were evaluated: time to heart rate 130 and duration of the treadmill test. In @entity1 and @entity1 qualified for treadmill testing, time to reach heart rate 130 was positively associated with @entity1068 intake. The relationship between fitness and @entity1068 intake persisted in sex-specific analysis after adjustment for age, ethnicity, systolic blood pressure, sum of subscapular and triceps skinfolds, and physical activity level. The magnitude and strength of the relationship were greater in @entity1 than in @entity1 . A negative interaction between @entity1068 intake and smoking status was evident. Linear regression coefficients in @entity1 were 0.29 sec to heart rate 130/ml @entity1068 /day in nonsmokers and -0.06 sec to heart rate 130/ml @entity1068 /day in smokers. Linear regression coefficients in @entity1 were 1.07 sec to heart rate 130/ml @entity1068 /day in nonsmokers and 0.23 sec to heart rate 130/ml @entity1068 /day in smokers. @entity1 and @entity1 who smoked showed 31 sec longer time to heart rate 130, regardless of @entity1068 intake. Mean daily @entity1068 intake was positively associated with duration of treadmill testing in @entity1 , but weakly associated with duration in @entity1 . These results show increased physical fitness as @entity1068 intake increased in @entity1 and nonsmoking @entity1 and mildly decreased physical fitness as @entity1068 consumption increases among @entity1 who smoke.(ABSTRACT TRUNCATED AT 250 WORDS)
