Patients who present with a femoral neck fracture and have a prosthesis replacement often complain of experiencing respiratory difficulties when walking, and this is often attributed to a decrease in physical strength resulting from aging. It is thought that, with the addition of invasive surgery, because of protein catabolism accentuation caused by hemorrhage and inflammation, since there is a decrease in red blood cells (below, RBC), which originated as protein, and hemoglobin (below, Hb), the oxygen transport capacity decreases. In this research, the value of total protein (below, TP), which indicates the state of nourishment, was classified into two groups of normal value (6.7mg/dl) or above (below, high nourishment group), and less than normal value (below, low nourishment group). Motor function, individual characteristics, respiratory function, blood biochemistry tests, and state of nourishment were tested and measured, the relationship between the state of nourishment and the blood biochemistry findings was investigated, and the effect that these exerted on the motor function was examined. Statistical analysis was conducted by the non-paired t-test. The results found a significant difference between the two groups in the C reactive protein (below, CRP), total protein, albumen (below, Alb.), RBC, Hb, the six-minute walking distance test (below, 6MD), SpO2, and the Borg scale. As a result of the protein catabolism accentuation, with the background of the effect of the invasive surgery, at the same time as showing low nutrition, the oxygen transport capacity decreased, while there was also a drop in the continuous walking distance and an increase in experiencing respiratory difficulties. It was inferred that, as evaluation items after prosthesis replacement surgery, there is a need to be aware of the state of nourishment, inflammation, and oxygen transport capacity from the blood biochemistry findings.
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