页数:19页文件大小:2.10 MB来源: 营养学英文版ppt课件
本课件讲解运动营养,说明运动人群的划分与能量需要,分析碳水化合物、脂肪与蛋白质在运动中的供能特点,给出运动膳食指南、大学生运动员的能量与营养素供给量以及补液与配餐原则。
Sports Nutrition
Introduction
In recent 20 years
CH2 O:Directlysupplyenergy Fat Lessutilizationthan CH2 Oabout 10-20% Proteinbeingacidmeterials
3 Dietary guidline for sport-High Level of CH2 O-Low level of fat -Suitable level protein -Enough water drinking-Suitable dietary amount-Familiar foods-Good sanitation
4.3 Important of CH2 OCH2 Oin Dietary Menuisveryimportant 55-60%,9-10g/kg BWsuchascereals,fruitsandvegetables CH2 Obedividedinto:Keepingbloodglucoselevel Especiallyaftersports Supportingenoughenergytobrainandheart
Sutablelevelindiet:25-30%/DRIs Causes 高脂肪食物胃停留时间长脂肪转换成能量所时间长脂肪分解代谢为不完全氧化β氧化-酮体:乙酰乙酸、β-羟丁酸、丙酮 Poorsportlevel 4.4 Lipids
4.5 Protein E/prot:>15%/DRIs,1.5-2.5g/kg BW50%frombetterprot.Lessprot.:Bodyprot.Exhausted Bodystatusnotkeeping Overprot.:Moreacidmeterialsinbody Musclebetiredeasily Poorsportlevel
4.6 Water Content:60 %; Free & Bound water Dehydrated:> 2-3 %,thirsty> 5-10 %, poor sport level> 20 %,being death Drinking:200ml, 30min before activity 100ml in the middle time Suitable amount after activity
Attentionsfordrinkingl 1.5-2.0 L/dl Drinkingwaterbeforefeelingthirstyl Coolwateriseasiertobeabsorbedthanhot Wl Coolwatercanlowbodytemperatuer Runinlongerdistancel 100mlbefore 2hsonebyonel 100mlbefore 10-15minl 100mlinthemiddle,10-15min/oncel 500mlafteronebyone
4.7 Minerals Exhausted:Nutrientslostmuch(Vit.Mine) Moreacidsinthebody Morewaterlostfromsweat Supplying:Keepingthebalanceofwaterminerialsacid/alkali Vit.,CH2 O&E
l Na Cl:30~40g/dl K:1.5g/d Adjustingathletes’temperatureforheat-resistant K+richerinorange,tomato,watermelonetall Ca:1000~2000mg/d Acids(lactose,urine)producedinthebodytobesalt Intakeless Na Cll Fe:20~25mg/d RBC/Hb-O&CO2l Zn&Se:Suiltableamount Takingpartinmetabolismasassistant Effectincreasing
4.8 Vitaminsl Vit.E:10~15 IU/drichinvariousfoodsas----l Vit.C:Enough 200~300mg/oncedrinkerberfor 30minl Vit.Bcom:Supplying B1、B2etal
Ration Principle
6 Schedulea. Before sport 4hs: Largeb. Before sport 3hs: Middlec. Before sport 2hs: Lessd. Before sport 1h: Litter
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