Multimodal analysis of the biomechanical impact of knee angle on the Sit-to-Stand transition

O’Keeffe, Clodagh; Gill, Conor; Etzelmueller, Mark; Taylor, Clare; Hablani, Surbhi; Reilly, Richard B.; Fleming, Neil

doi:10.1016/j.gaitpost.2023.07.283

Gait & Posture

2023

DOI: 10.1016/j.gaitpost.2023.07.283

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Multimodal analysis of the biomechanical impact of knee angle on the Sit-to-Stand transition

Clodagh O’Keeffe,

Conor Gill,

Mark Etzelmueller

et al.

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2024

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Cited by 2 publications

References 24 publications

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Brain (EEG) and muscle (EMG) activity related to 3D sit-to-stand kinematics in healthy adults and in central neurological pathology – A systematic review

McDonald,

El Yaakoubi,

Lennon

2024

Gait & Posture

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Brain (EEG) and muscle (EMG) activity related to 3D sit-to-stand kinematics in healthy adults and in central neurological pathology – A systematic review

McDonald,

El Yaakoubi,

Lennon

2024

Gait & Posture

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A Novel CNN-BiLSTM Ensemble Model With Attention Mechanism for Sit-to-Stand Phase Identification Using Wearable Inertial Sensors

Chen,

Cai,

et al. 2024

IEEE Trans. Neural Syst. Rehabil. Eng.

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Sit-to-stand transition phase identification is vital in the control of a wearable exoskeleton robot for assisting patients to stand stably. In this study, we aim to propose a method for segmenting and identifying the sit-tostand phase using two inertial sensors. First, we defined the sit-to-stand transition into five phases, namely, the initial sitting phase, the flexion momentum phase, the momentum transfer phase, the extension phase, and the stable standing phase based on the preprocessed acceleration and angular velocity data. We then employed a threshold method to recognize the initial sitting and the stable standing phases. Finally, we designed a novel CNN-BiLSTM-Attention algorithm to identify the three transition phases, namely, the flexion momentum phase, the momentum transfer phase, and the extension phase. Fifteen subjects were recruited to perform sit-to-stand transition experiments under a specific paradigm. A combination of the acceleration and angular velocity data features for the sit-to-stand transition phase identification were validated for the model performance improvements. The integration of the CNN, Bi-LSTM, and Attention modules demonstrated the reasonableness of the proposed algorithms. The experimental results showed that the proposed CNN-BiLSTM-Attention algorithm achieved the highest average classification accuracy of 99.5% for all five phases when compared to both traditional machine learning algorithms and deep learning algorithms on our customized dataset (STS-PD). The proposed sit-to-stand phase recognition algorithm could serve as a foundation for the control of wearable exoskeletons and is important for the further development of intelligent wearable exoskeleton rehabilitation robots.

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Multimodal analysis of the biomechanical impact of knee angle on the Sit-to-Stand transition

Cited by 2 publications

References 24 publications

Brain (EEG) and muscle (EMG) activity related to 3D sit-to-stand kinematics in healthy adults and in central neurological pathology – A systematic review

Brain (EEG) and muscle (EMG) activity related to 3D sit-to-stand kinematics in healthy adults and in central neurological pathology – A systematic review

A Novel CNN-BiLSTM Ensemble Model With Attention Mechanism for Sit-to-Stand Phase Identification Using Wearable Inertial Sensors

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