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Kinesiology 3347A/B

1Lecture 12 Monday Feb 6thUnit 4 Somatic GrowthCh34pg 224227Measurements somatic somabody anthropometry quantifying body dimensions use of specific landmarks methods of measurement instrumentationImportance of height and weight most common measures cultural values and social premiums status positively associated with height population health infant birth weight for estimates of population health infant development genetic potential nutrition and diseaseStature increases 35x from birth to maturity unidimensional Gaussian distribution create statistical categories ie tall short population variances more consistent than weight doesnt fluctuate as much better measure chronic growth and maturatin issues genotypic contribution more influentialBody SizeStature linear measurement composite measure skeletal growth birth to 2 years recumbent length lying supine Afterwards sole of foot to vertex of skull while erectVariance in stature within 20 of medianNormal 20 belowshort 20 abovetall dwarfism and giants 40 or more deviation from median generally genetic inherited traits not growth problems for about half cannot be this at a young age must be at matureadult state late maturers males vary to a greater extent than females in all dimensionsBody SizeWeight 20x from birth to maturity vs mass linear measure 1 axis downward 3dimensional different tissue types composite measure3 fat skeletalHeight diurnal variation daily variance shortterm studies intervertebral discs up to 2cm as gravity acts on us compresses our body posture tone pelvis and vertebral column illness slouch when dont feel well children generally have poor postureWeight diurnal variation caloric consumption vs expenditure bladder and bowel voiding physical activity water balance menstruation water retention dietary habitsComponents of stature composite sitting height seat surfacevertexStaturesitting heightsubischial length infants up to 2 yearssupine lower extremity length
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