This investigation examined the perceptual-motor distortions induced by mixed reality head-mounted displays during spatial navigation tasks. Employing a two-phase experimental paradigm, we initially quantified kinematic differences between helmet and non-helmet conditions, subsequently assessing sensorimotor adaptation through repeated bidirectional trajectory navigation. Fifty participants executed standardized trajectories while three-dimensional movement kinematics were recorded via spatial tracking. Statistical analyses revealed significant alterations in movement parameters during helmet use, characterized by increased trajectory tortuosity and elevated oscillation frequency. Qualitative assessment of movement patterns demonstrated systematic lateral deviations perpendicular to the intended vector, suggesting distortion of depth perception and spatial mapping processes. Longitudinal analysis of adaptation metrics indicated a 42.72% reduction in oscillation frequency between early and late trials, though this effect did not reach conventional statistical significance. These findings contribute to the theoretical understanding of technologically induced perturbations to spatial cognition and motor control, while establishing trajectory tortuosity as a sensitive metric for quantifying mixed reality performance decrements. The documented adaptation phenomena have significant implications for training protocols in professional applications of mixed reality technology.