HIỆU QUẢ BỔ SUNG ĐA VI CHẤT LÊN THỂ LỰC CỦA NỮ VỊ THÀNH NIÊN TRUNG HỌC PHỔ THÔNG MIỀN NÚI TỈNH THANH HÓA NĂM 2019 - 2020

Abstract

This is a community intervention study with a placebo group to assess the effectiveness
of multiple micronutrient supplementation on physical fitness among adolescent girls in a
mountainous high school in Thanh Hoa province in 2019 - 2020. A double-blind randomized
controlled trial was conducted among 240 school girls being randomly divided into 2 groups.
The multi-micronutrient supplements consisted of 23 vitamins and minerals, including iron
(60 mg), folic acid (2.8 mg), zinc (10.8 mg), vitamin A (550 mcg), and 19 other micronutrients. The control group took a placebo pill, once a week for 9 months. All of the adolescent
girls were dewormed by Albendazole 400 mg at baseline. The physical fitness of adolescent
girls before and after the intervention was assessed according to the standards of the Ministry
of Education and Training. Results after 9 months of intervention with multi-micronutrient
supplementation, the strength and endurance of adolescent girls were significantly increased,
the physical fitness level of the intervention group was rated as passed at 67.5% and good
at 20.0%, higher than the placebo group with the passed of 36.7% and good at 6.7%. In the
intervention group, the percentage of failed physical rating decreased by 53.6% compared to
the placebo group (p<0.001)