Most manual grips can be divided in precision and power grips on the basis of phylogenetic and functional considerations. We used functional magnetic resonance imaging to compare human brain activity during force production by the right hand when subjects used a precision grip and a power grip. During the precision-grip task, subjects applied fine grip forces between the tips of the index finge...

BACKGROUND Measuring grip and pinch strength is an important part of hand injury evaluation. Currently, there are no standardized values of normal grip and pinch strength among the Korean population, and lack of such data prevents objective evaluation of post-surgical recovery in strength. This study was designed to establish the normal values of grip and pinch strength among the healthy Korean...

background: lateral epicondylitis, also known as tennis elbow, is the most common overuse syndrome of the elbow. the severity of pain may not be directly caused by tendinopathy of wrist extensors since trigger points of the shoulder muscles have a referral zone in the arm and elbow. therefore the aim of this study was to evaluate the effect of dry needling of shoulder myofascial trigger points ...

Hand osteoarthritis (OA) usually results in decreased strength and function of the hand and deficits in motor control. However, no data exists on the relationship among these symptomatological features of hand OA. Ten females with hand OA and ten matched, nondisabled control subjects participated in this study. The outcomes of the Moberg Pickup Test (MPUT) and other functional hand tests were c...

PURPOSE This study aimed to compare the laterality, and its gender difference, of hand grip and elbow flexion power according to load in right hand-dominant individuals. METHODS The subjects were 15 healthy young males (age 22.1 +/- 0.7 y, height 171.3 +/- 3.4 cm, mass 64.5 +/- 4.1 kg) and 15 healthy young females (age 22.4 +/- 1.0 y, height 161.1 +/- 3.0 cm, mass 55.4 +/- 4.6 kg). Isotonic p...

OBJECTIVE To investigate the relationship between grip and pinch strength and independence in activities of daily living (ADL) in stroke patients. METHODS Medical records of 577 stroke patients from January 2010 to February 2013 were retrospectively reviewed. Patients' grip and pinch strength of both hemiplegic and non-hemiplegic hands and the Korean version of Modified Barthel Index (K-MBI) ...

The purpose of the present study was to investigate whether corticospinal projections from human supplementary motor area (SMA) are functional during precise force control with the precision grip (thumb-index opposition). Since beta band corticomuscular coherence (CMC) is well-accepted to reflect efferent corticospinal transmission, we analyzed the beta band CMC obtained with simultaneous recor...

A characteristic of skilled movement is the ability of the CNS to predict the consequences of motor commands. When we lift an object there is an anticipatory increase in grip force that prevents a grasped object from slipping. When an object is pulled from our grasp by an external force, a reflexive modulation in grip force prevents slippage. Here we examine how external perturbations to a gras...

A METHOD OF PUTTING FEATURES THE GOLFER’S DOMINANT HAND SO THAT THE GOLFER CAN IMPROVE CONTROL OVER PUTTING SPEED AND DIRECTION. THE GOLFER’S NON-DOMINANT HAND STABILIZES THE DOMINANT HAND AND THE ORIENTATION OF THE PUTTER BLADE, BUT DOES NOT OTHERWISE SUBSTANTIALLY INTERFERE WITH THE PUTTING STROKE. IN PARTICULAR, A RIGHT-HANDED GOLFER GRIPS THE PUTTER GRIP WITH THEIR [SIC] RIGHT HAND IN A CON...