Experimental development for thumb-index pinch force measurements during object manipulation with application to robotic hands

Wireless Sensing of Lower Lip and Thumb-Index Finger ‘Ramp-and-Hold’ Isometric Force Dynamics in a Small Cohort of Unilateral MCA Stroke: Discussion of Preliminary Findings

“…Peak force overshoot has been observed in neurotypical adults performing object prehension using the thumb-index finger [33,62] and during lower lip isometric compression maneuvers [26,33]. This phenomena may reflect a motor control strategy to produce an acceptable tradeoff between the rate of force recruitment (dF/dt max ) and force end-point accuracy.…”

“…Another interesting approach considers the cortical regulation of agonist and antagonist muscle activations by quantifying the magnitude of corticomuscular coherence which may be relevant in specific populations (stroke, cerebral palsy, cervical spinal cord injury) who manifest impaired antagonist muscle control [101]. The inclusion of biomechanical measures in a clinical setting using portable wireless force sensing technology and automated signal processing methods is expected to promote the development of individualized treatment programs for rehabilitation of orofacial and hand-digit motor skills which are often impaired in cerebrovascular stroke and brain injury [2,11,32,33,62].…”

Wireless Isometric Force Sensor Platform for Bedside Automated Evaluation and Therapeutics of Orofacial and Hand Muscle Systems Across the Lifespan

“…The ForceWIN10 platform described in the present report offers clinicians and scientists a portable, wireless, and versatile tool for measurement of isometric force dynamics in orofacial and hand/digit muscle systems. ForceWIN10 has already been used to generate a neurotypical database in young adults [3], with ongoing studies in children (ages 7-12 years) [19], and older adults (35-70 years) to characterize fine force regulation and maximum voluntary force generation across the lifespan. A small database of orofacial and thumb-index force dynamics has also been collected in patients who have sustained unilateral middle cerebral artery infarcts resulting from ischemic stroke with promising results.…”

“…A small database of orofacial and thumb-index force dynamics has also been collected in patients who have sustained unilateral middle cerebral artery infarcts resulting from ischemic stroke with promising results. Improved portability and operational ease of biomechanical assessment instruments will result in broader clinical use in patients with movement disorders [3,15,[17][18][19][20]. The inclusion of such biomechanical measures is expected to promote individualized treatment programs to support the rehabilitation of orofacial and hand-digit motor skills which are often impaired in neuromotor disease and injury.…”