Introduction: Understanding the biomechanics of the upper limb is of considerable interest in both clinical and engineering domains. Estimating elbow joint moments and triceps force plays a pivotal role in modelling musculoskeletal function. However, the use of electromyography (EMG) data is often constrained by challenges such as signal noise and calibration complexity. The objective of this study is to determine the elbow joint moment and triceps force during a Rest Pause Triceps Dumbbell Kickback exercise. Methods: This investigation utilized kinematic assessments from a cohort of 14 participants with diverse anthropometric profiles. A range of machine learning and deep learning models were employed to predict joint torque and triceps muscle force, including deep neural networks (DNN), long short-term memory networks (LSTM), convolutional neural networks (CNN), decision trees (DT), linear regression (LR), support vector machines (SVM), and random forests (RF). Model performance was systematically evaluated using multiple statistical metrics: Mean Squared Residuals (MSR), Root Mean Squared Error (RMSE), Mean Absolute Error (MAE), and the Correlation Coefficient (R). Results: The analytical outcomes demonstrated that the LSTM model yielded the highest predictive accuracy, achieving a correlation coefficient of R = 0.98374 when six input features (time, mass, forearm mass, upper arm mass, elbow angle, and height) were used. In descending order of R values, the performance of the remaining models was as follows: RF (0.92793), CNN (0.92106), DT (0.88812), DNN (0.75769), SVM (0.70011), and LR (0.44690). These findings underscore the potential of LSTM in capturing the temporal dynamics essential for biomechanical prediction. Conclusion: The findings from this study provide new insights into data-driven biomechanics and suggest that LSTM-based models may offer a promising alternative to EMG-based approaches. Accurate prediction of joint moments has significant implications for the real-time control of assistive technologies, particularly active orthoses in the future.
biomechanical modeling motion analysis RPTK upper limb deep learning.
Introduction: Understanding the biomechanics of the upper limb is of considerable interest in both clinical and engineering domains. Estimating elbow joint moments and triceps force plays a pivotal role in modelling musculoskeletal function. However, the use of electromyography (EMG) data is often constrained by challenges such as signal noise and calibration complexity. The objective of this study is to determine the elbow joint moment and triceps force during a Rest Pause Triceps Dumbbell Kickback exercise. Methods: This investigation utilized kinematic assessments from a cohort of 14 participants with diverse anthropometric profiles. A range of machine learning and deep learning models were employed to predict joint torque and triceps muscle force, including deep neural networks (DNN), long short-term memory networks (LSTM), convolutional neural networks (CNN), decision trees (DT), linear regression (LR), support vector machines (SVM), and random forests (RF). Model performance was systematically evaluated using multiple statistical metrics: Mean Squared Residuals (MSR), Root Mean Squared Error (RMSE), Mean Absolute Error (MAE), and the Correlation Coefficient (R). Results: The analytical outcomes demonstrated that the LSTM model yielded the highest predictive accuracy, achieving a correlation coefficient of R = 0.98374 when six input features (time, mass, forearm mass, upper arm mass, elbow angle, and height) were used. In descending order of R values, the performance of the remaining models was as follows: RF (0.92793), CNN (0.92106), DT (0.88812), DNN (0.75769), SVM (0.70011), and LR (0.44690). These findings underscore the potential of LSTM in capturing the temporal dynamics essential for biomechanical prediction. Conclusion: The findings from this study provide new insights into data-driven biomechanics and suggest that LSTM-based models may offer a promising alternative to EMG-based approaches. Accurate prediction of joint moments has significant implications for the real-time control of assistive technologies, particularly active orthoses in the future.
biomechanical modeling motion analysis RPTK upper limb deep learning.
| Birincil Dil | İngilizce |
|---|---|
| Konular | Biyomekanik |
| Bölüm | Araştırma Makalesi |
| Yazarlar | |
| Erken Görünüm Tarihi | 31 Ekim 2025 |
| Yayımlanma Tarihi | 16 Kasım 2025 |
| Gönderilme Tarihi | 22 Nisan 2025 |
| Kabul Tarihi | 1 Ağustos 2025 |
| Yayımlandığı Sayı | Yıl 2025 ERKEN GÖRÜNÜM |
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