Uninzi lwezinto ezichaphazela ukuphuhlisa ngokomzimba:
1. Impilo.
2. Umoya wangaphandle.
3. Imfundo yezemvelo.
4. Ukuthobela ulawulo lomhla.
5. Isondlo.
6. Ukukhawuleza.
7. Ulungelelaniso lwamaxabiso.
Ubunzima bomntwana ozalwayo ngokutsha luyi-2500-3500 gm. Ngonyaka o-1 wobomi, ubunzima bomzimba bomntwana bukhula ngokukhawuleza. Ngonyaka kufuneka ukuba kathathu.
Ixabiso lentengo lokufumana ubunzima kwinyanga nganye yesigama sokuqala sonyaka, hm:
Inyanga yokuqala-500-600
Inyanga yesi-2 - 800-900
Inyanga yesithathu - 800
Inyanga yesine - 750
Inyanga yesi-5 - 700
Inyanga yesi-6 - 650
Inyanga yesi-7 - 600
Inyanga ye-8 - 550
Inyanga ye-9 - 500
Inyanga ye-10 - 450
Inyanga ye-11 - 400
Inyanga ye-12 ngu-350.
Ubungakanani bemivuzo yenyanga nganye ngonyaka wokuqala wokuphila lunokumiselwa ngolu hlobo:
800 g - (50 x n),
Ubunzima bomzimba kunyaka wokuqala wobomi bunokumiselwa ngolu hlobo;
Kwiinyanga ezintandathu zokuqala kule fomyula, ubunzima bomzimba ngu:
ubunzima ekuzalweni + (800 x n),
apho n inani leenyanga, i-800 iyona inzuzo yesondlo yenyanga ngenyanga kwisahlulo sokuqala sonyaka.
Ngesiqingatha sesibini sonyaka umzimba wobukhulu:
ubunzima ekuzalweni + (800 x 6) (inzuzo yesisindo kwisahlulo sokuqala sonyaka) -
400 g x (n-6)
apho 800 g = 6 - isisindo sokwanda kwesahlulo sokuqala sonyaka;
n lixesha kwiinyanga;
400 g - inzuzo yesondlo yenyanga rhoqo kwisigamu sesibini sonyaka.
Umntwana oneminyaka elilodwa ubudala ulinganisa u-10 kg ngesilinganiso.
Emva komnyaka wokuqala wobomi, izinga lokukhula lokunyuka komzimba lancipha kancane, landa kuphela ngexesha lokukhulelwa.
Ubunzima bomzimba bomntwana oneminyaka engama-2 ukuya kwe11-11 lunokumiselwa ngolu hlobo:
10 kg + (2 x n),
apho n inani leminyaka.
Ngoko, umntwana oneminyaka eyi-10 kufuneka aqikelele:
10 kg + (2 x 10) = 30 kg.
Ubude (ubude bomzimba).
Kwiinyanga ezi-3, ukuphakama komyinge ku-60 cm. Kwiinyanga ezili-9, 70 cm, ngonyaka-75 cm kubafana kunye ne-1-2 cm encinane kumantombazana.
1, 2, 3 - nganye inyanga ye-3 cm = 9 cm.
4, 5, 6 - nganye inyanga i-2.5 cm = 7.5 cm.
7, 8, 9 - nganye inyanga i-1.5 cm = 4.5 cm.
10, 11, 12 - nganye inyanga ye-1 cm = 3 cm.
Ngenxa yoko, ngomyinge umntwana ukhula ngo-24-25 cm (74-77 cm).
Amalungu ahlukeneyo omzimba womntwana akhula ngokungalinganiyo, ininzi kakhulu imilenze engezantsi, ubude bawo bukhula kancinci ezintlanu ngexesha lonke lokukhula, ubude beenyawo ezingaphezulu 4, isiqu izikhathi ezili-3, nokuphakama kwentloko kabini.
Ixesha lokuqala lokukhula okunamandla lwenzeka kwiminyaka emi-5-6.
Ukongezwa okwesibini nguminyaka eyi-12-16.
Ukuphakama komyinge womntwana oneminyaka engaphantsi kweminyaka emi-4 kugqitywa ngufomula :
100 cm-8 (4-n),
apho n inani leminyaka, i-100 cm kukukhula komntwana kwiminyaka emine.
Ukuba umntwana uneminyaka engaphezu kwe-4 ubudala , ukukhula kwayo kuyafana:
100 cm + 6 (4 - n),
apho n inani leminyaka.
Ukudibanisa kwentloko kunye ne-thorax
Umjikelezo weentloko zintsana i-32-34 cm. Intambo yekhanda iyanda ngokukhawuleza kwiinyanga zokuqala zokuphila:
kwi-trimester yokuqala-2 cm ngenyanga;
kwi-trimester yesibili - 1 cm ngenyanga;
kwisahlulo sesithathu sonyaka - 0.5 cm ngenyanga.
Kuthetha ukuthinteka kwentloko kubantwana beeminyaka ezahlukeneyo
Ubudala - Isithintelo seNtloko, cm
Olutsha 34-35
3 inyanga - 40
6 inyanga - 43
Ezili-12 inyanga - 46
2 iminyaka - 48
4 iminyaka - 50
12 ubudala - 52
Umjikelezo wesifuba kwintsana esandula kutshatyalaliswa ngu-1-2 cm ngaphantsi kwe-circumference yentloko. Ukufikelela kwiinyanga ezi-4 kukho ukulingana kwe-thorax nentloko, kamva i-circumference ye-thorax ikhula ngokukhawuleza kunokugqitha kwentloko.
Umjikelezo wesisu kufuneka ube ncinane encinci (ngo-1 cm) kwi-circumference yesifuba. Esi sibonakaliso sinolwazi oluyiminyaka emi-3.