There are many of people who carrying the backpack such as recreational hikers, cragsman, and also students carry heavy loads while often walking long distances over uneven terrain. The purpose of this study was to determine the effect of backpack location on postural stability in male students.Fifteen experienced male students participated in this study. Subjects were carried the backpacks with three conditions: without weight in the backpack, with a backpack weighting 10% of their body weight and with 20% of subject’s body weight. The angles at the ankle, knee, hip and cervical spine and the position of markers on the ankle, knee, hip, shoulder and temporal bone were measured in different conditions. The results indicated that the mean right hip angle increased during wearing a backpack, this increase was grated with no weight. Differences were not significant between 20% bodyweight and 10%. The hip angle when participants were not wearing a backpack also compared equally to both the 20% and 10% BW hip angles suggesting little change in hip joint angle. This result showed that in which an increase in backpack weight decreased or increased any joint angle measured. Consequently the high position may be more stable and perhaps request less energy.
