Journal: Biosensors

Article Title: Hybrid Functional Near-Infrared Spectroscopy System and Electromyography for Prosthetic Knee Control

doi: 10.3390/bios14110553

Figure Lengend Snippet: The experimental framework: sEMG electrodes are placed on the thigh, and fNIRS optodes are positioned on the head. The acquired HbO and EMG signals are pre-processed, and features are extracted from both types of data. These features are used in classifiers to differentiate between knee movements, with system feedback aiding in refining control in future phases.

Article Snippet: The muscular activity of the quadriceps femoris and hamstring muscles was measured using sEMG electrodes connected to a Cyton biosensing OpenBCI board, an Arduino-compatible device with an 8-channel bio-amplifier and a 32-bit processor.

Techniques: Refining, Control

Journal: Biosensors

Article Title: Hybrid Functional Near-Infrared Spectroscopy System and Electromyography for Prosthetic Knee Control

doi: 10.3390/bios14110553

Figure Lengend Snippet: ( A ) Placement of sEMG electrodes on targeted muscles and ( B ) placement of sEMG electrodes on a participant.

Article Snippet: The muscular activity of the quadriceps femoris and hamstring muscles was measured using sEMG electrodes connected to a Cyton biosensing OpenBCI board, an Arduino-compatible device with an 8-channel bio-amplifier and a 32-bit processor.

Techniques: Muscles

Journal: The Journal of Physiological Sciences : JPS

Article Title: Monopolar surface electromyography: a better tool to assess motoneuron excitability upon passive muscle stretching

doi: 10.1007/s12576-009-0027-9

Figure Lengend Snippet: Arrangement of surface electromyography (sEMG) electrodes. The G1 electrode position is 2 cm distal to the insertion of the medial gastrocnemius muscle (MG) into the Achilles tendon and is used for both sEMG methods (bipolar and monopolar). In the bipolar sEMG, the G2 electrode (BG2) is placed 3 cm distal to G1. In the monopolar sEMG, the G2 electrode (MG2) is placed 3 cm medially and 2 cm superiorly to medial malleolus (MM) and over the Achilles tendon. The reference electrode (R) of both methods is placed anterior over the tibial bone at a distance between the stimulus site and G1 electrode (dashed circle).The stimulating site (S) is approximately 1 cm lateral to the popliteal crease mid-point (PCM)

Article Snippet: The arrangement of the electrodes is illustrated in Fig. , and a circular disposable self-adhesive sEMG electrode with a diameter of 20 mm (VIASYS healthcare, Neurocare group, Conshohocken, PA) was used.

Techniques:

Journal: The Journal of Physiological Sciences : JPS

Article Title: Monopolar surface electromyography: a better tool to assess motoneuron excitability upon passive muscle stretching

doi: 10.1007/s12576-009-0027-9

Figure Lengend Snippet: Absolute maximal H-wave (Hmax) and maximal M-wave (Mmax) values. Mean ± standard error (SE, n = 12) of the bipolar sEMG (a) and ordinary monopolar sEMG (b) at a resting (R) condition and passive stretching (PS) speed of 2, 5 and 10° s−1 (R, PS2, PS5, and PS10, respectively). *P < 0.001, **P = 0.011

Article Snippet: The arrangement of the electrodes is illustrated in Fig. , and a circular disposable self-adhesive sEMG electrode with a diameter of 20 mm (VIASYS healthcare, Neurocare group, Conshohocken, PA) was used.

Techniques:

Journal: The Journal of Physiological Sciences : JPS

Article Title: Monopolar surface electromyography: a better tool to assess motoneuron excitability upon passive muscle stretching

doi: 10.1007/s12576-009-0027-9

Figure Lengend Snippet: Hmax/Mmax ratio. Mean ± SE (n = 12) at the bipolar sEMG (a) and the ordinary monopolar sEMG (b). Abbreviations are the same as in Fig. 2. *P < 0.001, **P = 0.028

Article Snippet: The arrangement of the electrodes is illustrated in Fig. , and a circular disposable self-adhesive sEMG electrode with a diameter of 20 mm (VIASYS healthcare, Neurocare group, Conshohocken, PA) was used.

Techniques:

Journal: The Journal of Physiological Sciences : JPS

Article Title: Monopolar surface electromyography: a better tool to assess motoneuron excitability upon passive muscle stretching

doi: 10.1007/s12576-009-0027-9

Figure Lengend Snippet: H-wave at 50% of Mmax (mean ± SE; n = 5) at bipolar sEMG (G1-BG2, BI), suggested monopolar sEMG (BG2-MG2, MA) and the ordinary monopolar sEMG (G1-MG2, MB). Abbreviations are the same as in Fig. 2. *P = 0.002, **P < 0.05

Article Snippet: The arrangement of the electrodes is illustrated in Fig. , and a circular disposable self-adhesive sEMG electrode with a diameter of 20 mm (VIASYS healthcare, Neurocare group, Conshohocken, PA) was used.

Techniques: