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To investigate the daily dietary nutrient intake and energy expenditure of university students in Sichuan, in order to understand the levels of dietary nutrient intake and physical activity among college students. To evaluate the adequacy of the students’ nutritional requirements by analyzing the intake and energy contribution of the three major macronutrients, as well as the daily energy expenditure and its composition from physical activities.
A convenient sample of 200 college students in a university of Sichuan were included in the study. Body mass index (BMI) and body fat ratio (BFR) were measured using a body composition analyzer. A three-day 24-hour dietary recall method was used to investigate dietary intake, while the Bouchard Physical Activity Diary and triaxial accelerometer AntiGraph wGT3X-BT were used to investigate subjects’ physical activity and energy expenditure.
The median daily energy intake was 2 237 kcal/d for male students and 1 620 kcal/d for female students. The median daily macronutrient intakes for males were: protein 81 g/d, fat 72 g/d, and carbohydrate 295 g/d,and for females: protein 65 g/d, fat 58 g/d, and carbohydrate 210 g/d. The macronutrient energy ratios were 53∶15∶32 for both genders. The median daily energy expenditure was 473 kcal/d for males and 309 kcal/d for females.
Male college students’ daily energy intake and expenditure are significantly higher than females. College students generally show issues of relatively insufficient energy intake, high fat intake, relatively low carbohydrate intake, and insufficient moderate to high-intensity exercise. College students generally lack moderate-to-vigorous physical activity. Students should be encouraged to actively participate in physical activities to promote balanced diets and a healthy lifestyle.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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