Hubungan Asupan Zat Besi Dan Kadar Hemoglobin dengan Kesegaran Jasmani pada Remaja Putri di SMA N 1 Polokarto Kabupaten Sukoharjo
Abstract
Physical fitness is needed for daily activities. Someone with a good physical fitness, the
effectiveness and productivity can be maintained or increased. The intake of iron and the level
of hemoglobin are factors that influence physical fitness. The precentage of anemic in senior
high school of Polokarto was 68% in 2014, and there was not obsevation about physical fitness
yet. To determine the relationship between iron intake and hemoglobin level with physical
fitness in female adolescent at Senior High School of Polokarto, Sukoharjo. This study was an
obsevational with cross-sectional approach and the subjects were 68 students whom chosen
by purposive random sampling from 10th and 11th grade students. Data an iron intake were
obtained using semi quantitative food frequencies. The hemoglobin levels was measured using
cyanmethhaemoglobin method, whereas physical fitness level was measured using harvard step
test. This research showed that there were 52 subjects (76,4%) categorized as having low iron
intake. Whereas there were 37 subjects who were (54,4%) anemic. There were 37 subjects
(54,4%) who had low physical fitness. Simple regression analysis showed that iron intake
contributed 31,9% variant to physical fitness level. Whereas hemoglobin level contributed
15,2% variant to physical fitness. There was a relationship between iron intake and physical
fitness (p=0,0001) and there was a relationship between hemoglobin level and physcal fitness
(p=0,001).