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Showing 1 to 20 of 193 for “"Forearm"”.
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A forearm controller and tactile display
… of a small wireless device that is worn on the forearm. Designed to be portable, intuitive, and low cost, the device tracks the orientation of the arm with accelerometers, magnetic field sensors, and gyroscopes, fusing the data with a quaternion based Unscented Kalman Filter. The orientation …
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Investigating Forearm Muscle Activity Across Violin String Heights
… of this work was to evaluate differences in forearm and upper trapezius muscle activity and co-contraction indices during performance of a four-octave G-major scale on two identical violins with a low and a high string height. Surface electromyography was collected from six forearm muscles …
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Muscle fatigue and other factors influencing forearm muscle activity
The wrist extensor muscles of the forearm exhibit relatively greater muscle activity than the wrist flexors during most hand/wrist tasks. Since the extensors operate at a greater percentage of maximum to balance wrist joint moments, this could contribute to their higher incidence of overuse injury. …
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Thermographic Assessment of the Forearm During Data Entry Tasks: A Reliability Study
… surface temperature measurements of the dorsal forearm were obtained from 12 participants (6 females, 6 males) during a data entry task (35 minutes) and a 30-minute post-task period. Participants also reported their perceived forearm discomfort during data entry and recovery. Three forearm …
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The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm
Objectives. To examine the efficacy of a dynamic forearm rotation orthosis used as the sole intervention and in combination with the Occupational Therapy Task-Oriented (OTTO) approach as well as to evaluate the efficacy of the OTTO approach on the functional performance of persons post-stroke with …
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Forearm Loading (FAL) Study: A Recreational Gymnastics Intervention within a Physical Education Setting
… to investigate the effectiveness of an 8-month forearm loading intervention, based on a recreational gymnastics loading model, on bone health of children in grade 5. Methods: Forty-one participants (20 intervention and 21 comparison), 10-years of age, were recruited and measured at baseline and …
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Examining the roles of core and local temperature on forearm skin blood flow
… of rectal (Tre) and local (Tloc) temperature on forearm SkBF regulation at normal and elevated body temperatures, and to investigate the interaction between local and reflexive SkBF control. While either normothermic (Tre ~37.0°C) or hyperthermic (∆Tre +1.1°C), SkBF was assessed on the dorsal …
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Load Sharing in the Forearm Muscles Prior to Impact in Tennis Backhand Strokes
Made available in DSpace on 2014-12-14T16:06:56Z (GMT). No. of bitstreams: 1 7821012.pdf: 7042367 bytes, checksum: b94fbef308c33391f731e6e40f2e2519 (MD5) Previous issue date: 1978
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Heat Flux Measurements from a Human Forearm under Natural Convection and Isothermal Jets
… and a model cylinder. Heat transfer from a human forearm to a large jet, representative of a building HVAC vent/outlet was studied using both an IR camera and a heat flux sensor. The isothermal jet was discharged horizontally from a wind tunnel, at the same temperature as the ambient air. The …
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Novel Methods for Recording and Analysing High-Density EMG Signals of the Hand & Forearm
… high-density EMG signals from the hand and forearm to apply them to design novel machine-human interfaces for robotic control. A variety of flexible high-density electrodes were designed and fabricated to efficiently and accurately record myoelectric activity from the hand and forearm. Among …
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The Effects of Instrument Handle Design on Forearm Muscle Activity During Scaling by Dental Hygienists
… 6.35 mm diameter) on the muscle activity of four forearm muscles during a simulated scaling experience. Methods: A convenience sample of 27 dental hygienists used a Columbia 13/14 curet with four different instrument handles to scale artificial calculus. While scaling, each participant’s muscle …
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The effects of hand and forearm cooling on self-paced cycling performance in the heat.
… study investigated the effectiveness of hand and forearm per-cooling on self-paced cycling performance in the heat. We hypothesized that continuous, localized cooling would attenuate thermal strain and improve thermal sensation, thereby enhancing performance during a 20-km cycling time trial (TT). …
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Quantifying Localized Muscle Fatigue of the Forearm during Simulations of High Pressure Cleaning Lance Tasks
… LMF and quantify muscle activity of select forearm muscles during simulations of high pressure cleaning lance tasks common in the chemical production industry. Twenty participants, twelve males and eight females, with no musculoskeletal injuries and meeting criteria for upper extremity …
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Effects of acute and chronic exercise on forearm blood flow in patients with chronic heart failure
… study is a cross-sectional study comparing forearm blood flow (FBF) in CHF patients and age-matched healthy volunteers. The third study was the primary focus of this dissertation, with the emphases on the effects of resistance exercise training on FBF in patients with CHF using a prospective …
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Resting forearm blood-tissue lactate and gas exchange kinetics during supine leg exercise / by Peter Catcheside.
… observation that during leg exercise, resting forearm lactate kinetics appear to resemble closely the blood-tissue exchange kinetics of inert gases that have been reported in many organs during inert gas inhalation. Two mathematical models of forearm lactate uptake were developed, and three …
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Inhibitory effect of subthreshold transcranial magnetic stimulation on the stretch-evoked long latency response of forearm muscles
The central nervous system controls human movements using multiple pathways that relay neural input to the muscles. The reticulospinal tract (RST) is a prominent secondary motor pathway, as it extends the function of the primary motor pathway, the corticospinal tract (CST). The RST is especially …
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Fatigue-Independent Alterations in Muscle Activation and Effort Perception During Forearm Exercise: The Role of Local Oxygen Delivery
… unanswered questions by intermittently reducing forearm blood flow (FBF) during human (n = 16) handgrip exercise. When FBF was reduced, electrical activity and perception of effort increased. Interestingly, upon the first restoration of FBF neither electrical activity nor perception of effort …
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The role of neuromuscular performance on bone strength and properties in the forearm and lower leg of children
… (mean age 10.5; SD 1.6y) had their dominant forearm and lower leg imaged using peripheral quantitative computed tomography (pQCT) and high resolution pQCT (HR-pQCT). Bone mass, density, area and estimated strength were assessed. Muscle area was determined from the pQCT scans and grip strength …
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The biomechanical response of the interosseous membrane of the human forearm : an in-vitro investigation using robotics technology
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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