Adolescent Nutrition Ch 14 Flashcards Preview

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Flashcards in Adolescent Nutrition Ch 14 Deck (24)
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1

menses, Tanner stages

Sexual Maturation Rating (SMR) = Tanner Stages: scale of 2ndary sexual characterisitcs used to assess the dgree of pubertal maturation
-SMR 1: prepuburtal groth&dev
-SMR 2-5: occurrences of puberty
SMR 5: sexual maturation has conclusded

2

How biological age differs from chronological age?

Biological changes of puberty:
-sexual maturation
-↑ in ht & wt
-accumulation of skeletal mass
-changes in body composition
Chronological age: how old

3

Describe biological changes during puberty

1. sexual maturation
2. inc in ht & wt
3. accumulation of skeletal mass
4. changes in body composition

4

Menarche

MENARCHE: onset of 1st menstrual period

5

Discuss factors affecting eating behavior during adolescence

Peer influence
parental modeling
food availability, preferences, cost, convenience
personal & cultural beliefs
mass media
body image

6

conceptual model for factors affecting eating behavior during adolescence

MACROSYSTEMS
environmental & personals
1. microenvironmental & immediate social environment
2. cognitive-affective & behavioral & biologic
-Lifestyles -> indie food behavior

7

conceptual model for factors affecting eating behavior during adolescence

MACROSYSTEMS
environmental & personals
1. microenvironmental & immediate social environment
2. cognitive-affective & behavioral & biologic
-Lifestyles -> indie food behavior

8

What factors influence energy & nutrient requirements of adolescents?

↑ in lean body mass, skeletal mass, & body fat
-energy & nutrient are ↑
-DRIs provide the best est. of nutrient req for adolescents
-profesh judgment needs to be uses
-nutrient requiem based on chronological rather than bio dev

9

What factors influence energy requirements of adolescents?

1. Activity level
2. BMR (basal meta rate)
3. pubertal growth & dev
-males have > ↑ in ht, wt, & LBM-> they have a ↑ caloric need than females
-level of PA ↓ during adore = ↓ energy req

10

What factors influence energy requirements of adolescents?

1. Activity level
2. BMR (basal meta rate)
3. pubertal growth & dev
-males have > ↑ in ht, wt, & LBM-> they have a ↑ caloric need than females
-level of PA ↓ during adore = ↓ energy req

11

What are the % range recommendations for macronutrients intake (AMDR)?

Carbs: 45-65% cals
Fat: 25-35%;

12

What is the protein recommendation (g/d) for adolescents?

Protein req influences by protein needed:
-to maintain existing LBM
-for growth of new LBM
*recomm in 0.85g/kg body wt
low protein intakes linked to:
-↓ in linear growth
-delays in sexual maturation
-↓ LBM

13

Describe the importance of calcium during this phase and differences in calcium absorption/retention.

Adequate intake of Ca is essential to ensure peak bone mass
Ca absorption is ↑est around:
-menarche in F
-early adore in M
-~4x > Ca retained during adore compared to early adulthood
-
Adole who do NOT inc dairy should consume Ca-fortified foods
Sodas displace nutrient-dense drinks (milk & fortified juices)
-DRI (ages 9-18) is 1300 mg/d
Avg intake:
-948 mg F
-1260 mg M
Wt-bearing activities may lead in ↑ bone mineral density

14

Describe the importance of vitamin D during this phase and differences in calcium absorption/retention.

-Essential role in facilitation intestinal absorption of Ca & P
-Essenial for bone formation
-Synthesized by the body via sun exposure of UV B rays of sunlight
-Nothern latitudes may req supp
-RDA: 600IU/day

15

How iron deficiency differs from iron deficiency anemia?

IRON DEF:
-determined by low serum iron, plasma ferritin, & tranferrin saturation
-iron def more frequent
-often undiagnosed bc of expense
IRON-DEF ANEMIA:
-determines by simple and inexpensicve hemoglobin/hematocrit levels
-indicates > advances stage of iron def
-

16

What factors are related to iron needs?

↑ iron needs related to:
-rapid rate of linear growth
-↑ in blood vol
-menarche in F

Iron needs greatest:
-after menarche in F
-during growth spurt in M

17

How iron deficiency differs from iron deficiency anemia?

IRON DEF:
-determined by low serum iron, plasma ferritin, & tranferrin saturation
-iron def more frequent
-often undiagnosed bc of expense
IRON-DEF ANEMIA:
-determines by simple and inexpensive hemoglobin/hematocrit levels
-indicates > advances stage of iron def
-

18

How iron deficiency differs from iron deficiency anemia?

IRON DEF:
-determined by low serum iron, plasma ferritin, & tranferrin saturation
-iron def more frequent
-often undiagnosed bc of expense
IRON-DEF ANEMIA:
-determines by simple and inexpensive hemoglobin/hematocrit levels
-indicates > advances stage of iron def
-

19

What are the consequences of folate deficiency and severe folate deficiency?

Folate req for DNA, RNA, & protein synthesis
DRI 400mcg
Severe folate def -> megaloblastic anemia
-severe def is rare but inadequate folate status appears to be > common

-↑ incidence of birth defects (spina bifida)
-if skip breakfast, no fortified foods = ↑ wish of folate def

20

Discuss different approaches of dietary intake assessment

1. AMA recomm all adoles receive annual health screening & guidance
-wt, ht, & BMI
-disordered eating tendencies
-blood lipid levels
-BO
-iron status (demo&hema)
-food security/insecurity-dietary intake/adequacy
2. Nutriton screening should inc brief dietary assessment:
-food frequency ?airres
-24hr recalls
-food diaries / food records

21

Describe strategies to improve nutrition counseling

1. initital componensnt of session should involve:
-getting to know adores, inc personal health or nutrition-relates concerns
-providing overview of events & content of concealing session
2. involve adole in decision-making process
3. encourage to suggest ways to change
4. work toward only 1-2 goals per session

22

and messages to adolescents

Use tech to facilitate edu & counseling
-txt msgs
-podcasts
-YT, FB, Twitter
technology can serve to convey nutrition info in an engaging way

23

Describe strategies to improve nutrition counseling

1. initital componensnt of session should involve:
-getting to know adores, inc personal health or nutrition-relates concerns
-providing overview of events & content of concealing session
2. involve adole in decision-making process
3. encourage to suggest ways to change
4. work toward only 1-2 goals per session

24

Describe strategies to send messages to adolescents

1. Use tech to facilitate edu & counseling
-txt msgs
-podcasts
-YT, FB, Twitter
2. technology can serve to convey nutrition info in an engaging way
3. use effective mutation msgs for youth
-teans are "present oriented"
-concerned about appearance
-achieving& maintaining a healthy wt
-having lots of energy
-optimizing sports performance
-environmental/moral aspects of food
4. parent involvement
5. school coordinated health programs