AbstractProper exercise execution is critical for enhancing performance and reducing the risk of injury in athletic, fitness, and rehabilitation settings. Traditional exercise correction methods, such as human coaching and biomechanical laboratory assessments, often fall short due to limitations in accessibility, subjectivity, and cost. Recent advances in machine learning (ML) and artificial intelligence (AI) offer promising alternatives by enabling real-time movement analysis and feedback through wearable sensors and computer vision-based systems. This review explores the current landscape of ML applications in exercise correction and injury prevention, analyzing 22 peer-reviewed studies that incorporate deep learning models, sensor-based activity recognition, and automated feedback mechanisms. The findings reveal that ML-driven solutions achieve high levels of accuracy in detecting posture deviations and injury-prone movements, while also providing scalable and individualized feedback to users across diverse environments. Despite these advancements, significant challenges remain in the standardization of data inputs, adaptability to biomechanical variability, and ethical concerns related to user privacy and algorithmic bias. Nonetheless, the integration of AI into exercise science holds considerable potential to democratize access to high-quality training and rehabilitation, offering a paradigm shift toward more intelligent, responsive, and injury-resilient movement systems.1. IntroductionIn sports, fitness, and rehabilitation, proper exercise form is essential for both performance and injury prevention. Patients with musculoskeletal injuries due to incorrect exercise often reported lower efficiency of athletic activity and prolonged recovery periods (An et al., 2024). It is especially important for athletes, rehabilitation patients, and fitness enthusiasts to maintain biomechanical health since deviations in movement patterns may lead to chronic injuries (Lin & Wang, 2024). Exercise injuries are prevalent; it is estimated that about 50% of all sports injuries are preventable with appropriate technique and modified training interventions (Patel et al., 2012). Such injuries result in higher healthcare expenditure, lower engagement with physical activity, and chronic impairment of the ability to perform tasks (An et al., 2024). And bad squat form hurts knee ligaments, while bad deadlifting form hurts lower backs. The correction is also important in light of the high incidence of overuse injuries seen in endurance sports (Patel et al., 2012). Traditional exercise correction relies on human guidance that involves coaching, physical therapy, and biomechanics laboratories, where feedback is provided based on visual and tactile inspection from a human expert (Patel et al., 2012). Although these methods are effective, they have shortcomings, such as the importance of reliance on subjective human analysis in motion analysis, less accessibility to remote or underserved individuals and the high cost of biomechanics lab assessments. Biomechanics labs can use motion capture systems, force plates and electromyography (EMG) to analyse movement patterns; however, these technologies are expensive and useless outside the research institutions (Patel et al., 2012). This underscores the need for scalable, cost-efficient solutions, for example, ML-based exercise correction systems. Machine learning (ML), artificial intelligence (AI), and sensor technologies are enhancing exercise monitoring by allowing for movement quality analysis and feedback techniques (An et al., 2024). Also, the popular use of wearable motion sensors, AI video analysis and deep learning algorithms can help people get real-time feedback on the exercise posture of their workout and exercise with a lower risk of injury and higher efficiency (Lin & Wang, 2024). For example, PoseNet and OpenPose are, AI computer vision models that track the skeleton keypoints and inspect wrong movements for exercises like lunges and squats (LIN & WANG, 2024). Wearable-based accelerometers and gyroscopes embedded in fitness tracking devices (e.g., smartwatches, motion analysis suits) also monitor joint angles and movement speed in real-world settings (Patel et al., 2012). Traditional forms of coaching are increasingly being supplemented with AI-based motion analysis solutions that provide: Improved precision with which it identifies movement anomalies, Scalability — users can receive training corrections regardless of where they are, and Automated feedback for individuals who are training in the absence of direct human supervision (Lin & Wang, 2024) Studies show AI-assisted training improves movement recognition accuracy over 90% than manual observation (Lin & Wang, 2024) For instance, AI-enhanced rehabilitation instruments can aid injury recuperating patients by giving specific recommendations tailored from real-time biomechanics data (An et al., 2024). Nevertheless, challenges persist in delivery formats, data variability among individuals, calibration difficulties, and ethical considerations surrounding AI applications in healthcare (Patel et al., 2012). This review aims to give an overview of the past and recent developments in machine learning for real-time exercise correction and injury prevention. Methods include wearable sensors, AI-based motion tracking, and deep learning models. Analyses: Challenges and future directions, such as improving AI performance, addressing biomechanical variability, and promoting real-world accessibility.2. MethodologyThis review adopts a systematic methodology grounded in the PRISMA framework to evaluate the application of machine learning (ML) in real-time exercise correction and injury prevention. A structured search was conducted across five major academic databases, PubMed, IEEE Xplore, ACM Digital Library, SpringerLink, and Google Scholar, for peer-reviewed studies published between January 2015 and March 2025. A combination of Boolean operators was used to search terms including ”machine learning,” ”exercise correction,” ”injury prevention,” ”real-time feedback,” ”pose estimation,” ”wearable sensors,” and ”human activity recognition.” After removal of duplicates, titles and abstracts were screened for relevance. Full-text articles were reviewed against strict eligibility criteria. The study selection process is outlined in accordance with PRISMA standards. Table 1: Inclusion and Exclusion Criteria for Study Selection