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Biomedical subjects

Stella Lucia Volpe

Publications and source records attributed to Stella Lucia Volpe.

4 recordsLinked to original sources

Effect of maximal exercise on the short-term kinetics of zinc metabolism in sedentary men.

OBJECTIVE: To examine the effect of acute exhaustive exercise versus rest on short-term zinc kinetics in men. DESIGN: Crossover design, wherein all subjects were their own control. SETTING: University setting, where subjects were free living. PARTICIPANTS: 12 healthy, sedentary men, 25-35 years of age. INTERVENTIONS: (70)Zn was infused 10 min after exercise or at rest. Plasma zinc concentrations were measured at baseline and 2, 5, 10, 15, 30, 45, 60, 75, 90 and 120 min after exercise or rest. Haematocrit was measured before and after exercise to assess changes in plasma volume. MAIN OUTCOME MEASUREMENTS: Plasma zinc (primary), serum creatine kinase and serum cortisol concentrations (secondary). RESULTS: Plasma zinc concentrations decreased (p<0.05) after exercise, with a mean (SD) nadir of 13.9% (4.1%) observed at 70 min after exercise. There were increases in the size of the rapidly exchangeable plasma zinc pool (Qa; from 3.1 (0.2) to 3.6 (0.2) mg; p<0.05) and the liver zinc pool (Qb; from 10.2 (0.6) to 11.4 (0.8) mg; p = 0.12). CONCLUSION: Exercise seems to cause a shift of plasma zinc into the interstitial fluid and liver after exercise, which may reflect the acute stress response of strenuous exercise.

Adult↗

Effect of nutrition supplement education on nutrition supplement knowledge among high school students from a low-income community.

Research has shown that adolescents from low-income communities receive less educational resources and support and may possess insufficient knowledge of nutrition and sport supplements to make health conscious decisions. The purpose of this investigation was to determine the effectiveness of a nutrition supplement educational intervention in improving the nutrition supplement knowledge of adolescents from a low-income community. Thirty-nine high school students from a low-income community were separated into experimental (E) (n = 22) and control (C) (n = 17) groups. E received 5 nutrition lessons on various nutrition and sport supplement topics. C did not receive any nutrition education. E consisted of 5 freshmen, 5 sophomores, 6 juniors, and 6 seniors. The ethnic backgrounds of E were: 15 African-Americans, 3 Hispanic-Americans, and 4 "others." There were 14 females and 8 males in E. C consisted of 9 freshmen, 1 sophomore, 4 juniors, and 3 seniors. The ethnic backgrounds of C were: 14 African-Americans, 1 Hispanic-American, and 2 "others." There were 10 females and 7 males in C. Both groups were administered a validated nutrition and sport supplement questionnaire at baseline and post-intervention that consisted of 28 questions. Mean baseline knowledge scores for E and C were 5.73 +/- 3.34 and 8.18 +/- 3.82, respectively (p = 0.040). Post-intervention scores were: 14.45 +/- 4.81 and 7.82 +/- 4.79 for E and C, respectively (p = 0.0001). These results indicate that a short-term nutrition education program can significantly improve nutrition and sport supplement knowledge in high school students of low socioeconomic status.

Adolescent↗

Popular weight reduction diets.

The percentage of people who are overweight and obese has increased tremendously over the last 30 years. It has become a worldwide epidemic. This is evident by the number of children are being diagnosed with a body mass index >85th percentile, and the number of children begin diagnosed with type 2 diabetes mellitus, a disease previously reserved for adults. The weight loss industry has also gained from this epidemic; it is a billion dollar industry. People pay large sums of money on diet pills, remedies, and books, with the hope of losing weight permanently. Despite these efforts, the number of individuals who are overweight or obese continues to increase. Obesity is a complex, multifactorial disorder. It would be impossible to address all aspects of diet, exercise, and weight loss in this review. Therefore, this article will review popular weight loss diets, with particular attention given to comparing low fat diets with low carbohydrate diets. In addition, the role that the environment plays on both diet and exercise and how they impact obesity will be addressed. Finally, the National Weight Control Registry will be discussed.

Attitude to Health↗