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Recently, significant efforts have been dedicated to enhancing anomaly detection methods, especially concerning high-dimensional and distributed clinical datasets. The analysis of patient information in clinical environments highlights a strong emphasis on improving diagnostic precision, tailoring treatment strategies, and maximizing resource efficiency to boost health outcomes. However, this field encounters distinct difficulties, including sporadic data gathering, variable data quality, and structural differences unique to individual patients. To overcome these obstacles, this paper introduces an innovative hybrid framework that merges stochastic and heuristic techniques for detecting anomalies in clinical patient data. This approach leverages an HPO-optimized Density-Based Spatial Clustering of Applications with Noise to group patient exercise data, thereby streamlining the detection of abnormalities. Following this, an Interquartile Range-based stochastic technique filters out untrustworthy data points, guaranteeing that healthcare practitioners and diagnostic systems are supplied with only highly relevant and precise data. The main goal of this research is to provide medical experts and scholars with a reliable instrument for handling vast, high-dimensional clinical datasets, allowing for the successful separation and elimination of deviant data observations. Additionally, an advanced regression model was constructed utilizing Automated Machine Learning (AutoML) to evaluate the effectiveness of the ensemble technique for detecting abnormal patterns. Multiple statistical error evaluation methods are employed to verify the success of this hybrid strategy in conjunction with AutoML. Empirical findings indicate that applying this cutting-edge hybrid framework to patient rehabilitation data significantly boosts AutoML performance, yielding an average improvement of 0.041 in the score, thereby outperforming conventional regression models.