The aim of this study was to determine whether virtual training improves grip force control in prosthesis use, and to examine which type of augmented feedback facilitates its learning most. Thirty-two able-bodied participants trained grip force with a virtual ball-throwing game for five sessions in a two-week period, using a myoelectric simulator. They received either feedback on movement outco...

BACKGROUND In animals and fungi, dimerization is crucial for targeting GRIP domain proteins to the Golgi apparatus. Only one gene in the Arabidopsis genome, AtGRIP, codes for a GRIP domain protein. It remains unclear whether AtGRIP has properties similar to those of GRIP domain proteins. RESULTS In this study, western blot and yeast two-hybrid analyses indicated that AtGRIPs could form a para...

Background: Hand-grip strength studies with healthy adults have shown correlation between anthropometric variables and hand grip strength. There is dearth in literature in population of Saudi Arabia. The objective of this study is to describe normative data to evaluate the relationship between handgrip strength and other anthropometric variables especially hand length, forearm circumference wit...

SUMMARY Most human manual grip movements can be divided into power gripping and precision gripping, but central neural control during these tasks remains unclear. We investigated activation of the whole brain to analyze how simple hand movements are performed. The cerebral blood flow of seven healthy right-handed volunteers was measured by H2 15O positron emission tomography during right grip t...

BACKGROUND The study of the influence of life course occupational position (OP) on health in old age demands analysis of time patterns in both OP and health. We study associations between life course time patterns of OP and decline in grip strength in old age. METHODS We analyze 5 waves from the Survey of Health Ageing and Retirement in Europe (n = 5108, ages 65-90). We use a pattern-mixture ...

OBJECTIVE The purpose of this study was to establish test-retest reliability values for the newly designed grip and wrist attachments of the BTE Primus and to determine criterion-related validity of the new grip attachment against the Jamar dynamometer. An additional purpose was to explore the differences in grip and wrist flexion strength between wheelchair users and control participants witho...

It has been argued that visual perception and the visual control of action depend upon functionally distinct and anatomically separable brain systems. Electrophysiological evidence indicates that binocular vision may be particularly important for the visuomotor processing within the posterior parietal cortex, and neuropsychological and psychophysical studies confirm that binocular vision is cru...

Sir—I was pleased to read the Research Letter of Kerr et al. in the January issue of this journal [1]. In it, they report a relationship between the grip strength and discharge disposition of elders admitted to hospital. Their research, though informative, is not the first to investigate ‘the link between grip strength and outcome in non-surgical settings’. For a primarily aged cohort of patien...

Hand grasping requires the transformation of sensory signals to hand movements. Neurons in area F5 (ventral premotor cortex) represent specific grasp movements (e.g., precision grip) as well as object features like orientation, and are involved in movement preparation and execution. Here, we examined how F5 neurons represent context-dependent grasping actions in macaques. We used a delayed gras...

[Purpose] This study investigated the association between floating toe and toe grip strength. [Subjects and Methods] A total of 635 Japanese children aged 9-11 years participated in this study. Floating toe was evaluated using footprint images, while toe grip strength was measured using a toe grip dynamometer. All 1,270 feet were classified into a floating toe group and a normal toe group accor...