Ms Tanya Hamilton Professor Dave Gerrard North/Sun_room10_0832_Hamilton... · 2018-06-09 · Ms...
Transcript of Ms Tanya Hamilton Professor Dave Gerrard North/Sun_room10_0832_Hamilton... · 2018-06-09 · Ms...
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Ms Tanya HamiltonSenior Performance Nutritionist
High Performance Sport New Zealand
(HPSNZ)
Auckland
8:30 - 9:25 WS #192: Sports Nutrition 101 for GPs - a panel
9:35 - 10:30 WS #204: Sports Nutrition 101 for GPs - A panel (Repeated)
Ms Jeni PearceHead of Performance Nutrition
High Performance Sport New Zealand
Auckland
Professor Dave
GerrardDunedin School of Medicine
High Performance Sport New Zealand
(HPSNZ)
Auckland
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NUTRITION FOR DEVELOPING
ATHLETESTanya Hamilton
HPSNZ Performance Nutritionist
Copyright Tanya Hamilton 2018.
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Setting the scene
12-18 year old athletes:
Competitive verses active
Physical (puberty, growth spurts)
Cognitive
Social
Studying
+ sport (type, intensity and volume)
E.g.14-15 yr old Swimmer
Active: 2- 4hr/week +/- other sports
Competitive: 14.5hr/week +/- other sports
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Big rocks
■ Energy availability
■ At risk nutrients
■ Supplements
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Energy Availability (EA)
■ EA = Energy Intake – Exercise Energy Expenditure
■ Energy requirements high E.g. 14 yo swimmer 4hr/day training ~14,000 KJ/day
■ Difficult to estimate energy requirements
■ When is it an issue?
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Is energy adequate?✓ Growing
✓ Healthy
Recurrent illness
Unexplained injury/fractures
Poor response to training
Failing growth milestones/weight loss
Ongoing fatigue
Following certain diets
Eating disorder/disordered eating
GI issues
Chronic low mood / motivation
Lack of/disturbed sleep
Nutrient deficiencies
Chronic poor appetite
Not performing as expected
Irregular/absent menses/abnormal hormone profile
Poor concentration/suffering school work
Suffering relationships
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At risk nutrients
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Calcium:
Higher than adult
(1300mg/day)
Energy production/performance
Haemoglobin synthesis
Bone health
Immunity
Protection against oxidative
damage
Synthesis and repair of muscle
tissue
Vitamin D:
(5ug or 400IU/day, AI
5mg/day)
Bone density
Muscle strength & function
Immunity
Physical performance
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At risk nutrients
Copyright Tanya Hamilton 2018.
Iron:
11 15mg/day
Energy metabolism
Immunity
Technical skills performance
Physical performance
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Food focused
Food group guided
■ Correct inadequacies
■ Aim for daily consistency
Patterns
■ 2-3 hourly meals and snacks
■ Constant state of preparation and
recovery
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Supplements? simply…no
Copyright Tanya Hamilton 2018.
Undermines everything else
Safety & effects = unknown
Athletes are unique
Individualise, customise and periodise
Prescribed supplements
(NZ Formulary listed as medicine or AUST R number)
Contamination
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Manufacturing IS important
Purity
Efficacy
DIETARY SUPPLEMENTS
Efficacy
Purity
MEDICINES
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Chapters
17 & 5
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Thank you
Questions
Key references
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14,400kj day
Copyright Tanya Hamilton 2018.