Abstrak
Latar Belakang : Usia anak di bawah dua tahun (baduta) merupakan periode emas (golden period) tumbuh kembang anak. Ketrampilan motorik merupakan salah satu bagian perkembangan anak. Memiliki kontrol motor yang baik membantu anak mengeksplorasi lingkungan sekitar juga membantu meningkatkan perkembangan. Penelitian ini bertujuan menjelaskan pengaruh berat badan lahir, pendidikan ibu, pemberian stimulasi dan status gizi terhadap perkembangan motorik anak (baduta)
Subjek dan metode : Metode penelitian analitik observational, pendekatan kohor restrospektif. Teknik sampling  cluster sampling, diklasifikasikan BBLR dan tidak BBLR (fixed exposure sampling). Tempat penelitian di Kabupaten Banyumas : Kecamatan Kembaran, Somagede, Cilongok dan Sumpiuh. Jumlah subyek 120 anak dengan 50 anak lahir BBLR dan 70 berat badan normal. Variabel eksogen : Berat Badan Lahir, ASI eksklusif, pendidikan ibu, pemberian stimulasi. Variabel endogen : status gizi, perkembangan motorik. Pengumpulan data melalui pemeriksaan SDIDTK dan kuesioner. Teknik analisis data menggunakan analisis jalur.
Hasil : Ada pengaruh langsung status gizi terhadap perkembangan motorik (b=0.12, SE= 0.05, p=0.006), frekuensi stimulasi terhadap motorik (b=0.04, SE= 0.01, p=0.005), berat badan lahir terhadap motorik (b=0.33, SE=0.06 p=<0 b=0.02, SE=0.07, p=0.719). b =0.10, SE=0.15  p=0.507), b=0.23, SE=0.13 p=0.078). b=0.38, SE=0.12  p=0.002).>Kesimpulan : Ada pengaruh signifikan Berat Badan Lahir, frekuensi stimulasi dari lingkungan, status gizi terhadap perkembangan motorik, sedangkan pengaruh pendidikan ibu tidak signifikan. Ada pengaruh pemberian ASI eksklusif terhadap status gizi namun tidak signifikan, pendidikan ibu mendekati signifikan dan berat badan lahir signifikan terhadap status gizi.

Kata kunci: Berat Badan Lahir, ASI eksklusif, stimulasi dari lingkungan, pendidikan ibu, status gizi, perkembangan motorik

Abstact
Background: The first two years of childhood is a sensitive period for growth and development. Motoric skill is one of essential elements in child development. Good command of motoric control helps children to explore their environment and to improve development. This study aimed to determine the effect of birthweight, maternal education, stimulation, exclusive breastfeeding, and nutritional status on motoric development in children aged 6-24 months in Banyumas district, Central Java, using path analysis.
Subjects and Method: This was an analytic observational study with retrospective cohort design. This study was conducted at 4 sub-districts (Kembaran, Somagede, Cilongok, and Sumpiuh), Banyumas District, Central Java. A sample of 120 children aged 6-24 months, consisting of 50 children with low birthweight and 70 children with normal birthweight, were selected by fixed exposure sampling. The exogenous variables included birthweight, exclusive breastfeeding, maternal education, and stimulation. The endogenous variable was nutritional status and motoric development. The data on motoric development was collected by SDIDTK test, while some other variables were collected by questionnaire. The data were analyzed by path analysis.
Results: Motoric development was directly affected by nutritional status (b=0.12; SE=0.04; p=0.006), frequency of stimulation (b=0.04; SE= 0.01; p=0.005), birthweight  (b=0.38; SE=0.12; p=0.002).  and maternal education (b=0.02; SE=0.07; p=0.719). Nutritional status was affected by exclusive breastfeeding (b =0.10; SE=0.15; p=0.507), maternal education (b=0.23; SE=0.13; p=0.078), and birthweight (b=0.38; SE=0.12; p=0.002).
Conclusion: Motoric development was directly affected by nutritional status, frequency of stimulation, birthweight, and maternal education. Motoric development was indirectly affected by exclusive breastfeeding, maternal education, and birthweight.

Keywords: birthweight, exclusive breastfeeding, stimulation, maternal education, nutritional status, motoric development