Ten subjects were instructed to squeeze a dynamometer in a prescribed manner in order to assess the effects of motor preparation on event-preceding brain potentials. Right and left hand responses were required in 5 different experimental conditions allowing different degrees of advance preparation. Six channels of EEG (F3, F4, C3', C4', P3, P4) and two channels of EMG were digitized over a 3000...

The purpose of the study is to establish absolute reliability and concurrent validity between hand-held dynamometers (HHDs) and isokinetic dynamometers (IDs) in lower extremity peak torque assessment. Medline, Embase, CINAHL databases were searched for studies related to psychometric properties in muscle dynamometry. Studies considering standard error of measurement SEM (%) or limit of agreemen...

BACKGROUND Reliable quantification of hip abductor strength in a clinical setting is challenging. OBJECTIVES To examine the intrarater and interrater reliability of three commonly used commercial dynamometers in the measurement of hip abduction. METHODS Supine gravity minimised measures of unilateral hip abduction strength were recorded in 10 women (mean (SD) age 23.5 (1.9) years) using thr...

At OSU, we have substantially completed a major instru-mentation upgrade of the undergraduate energy conversion laboratory. We are now utilizing digital signal acquisition and virtual instrumentation (using National Instruments' LabVIEW software) to collect and visualize data. Data from GPIB digital oscilloscopes can also be acquired in our setup. Dynamometers have been purchased which interfac...

: A new approach towards a model-based optimization of IC engine control on dynamometers is presented in this paper. The proposed methodology comprises advanced measurement strategies for a fast dynamic measurement of engine characteristics on dynamometers (DYNMET), a model-based offline optimization of feedforward control maps (STATOPT), and the optimization of dynamic transitions of turbochar...

In order to ensure an acceptable quality even at the highest spinning or weaving speeds, tensile instruments and testing conditions have to be improved. Therefore, a new high-speed dynamometer and a new method to subject yarns at strain rates similar to those found in current textile operations have been developed. This high-speed dynamometer has then been used to investigate the influence of h...

Abstract Background Given the severe economic and performance implications of hamstring injuries, there are different attempts to identify their risk factors for subsequently developing injury prevention strategies reduce these injuries. One reported in scientific literature is application interventions with eccentric exercises. To verify effectiveness interventions, strength measurements have ...

Background Muscle strength is usually measured in individuals with stroke with Portable dynamometers (gold standard). However, no studies have investigated the reliability, the standard error of measurement (SEM) and the minimal detectable difference (MDD95%) of the dynamometry for the measurement of hand grip, pinch grip and trunk strength in subjects with subacute stroke. Objective 1) To in...

Muscular strength is generally measured using either of the following methods, one repetition maximum (1RM) of a weight-lifting exercise, a resisted maximal effort and portable or laboratory-based dynamometry. The 1RM method refers to measurements of maximum strength using a strength training device such as a barbell or stationary weight-lifting machine. Dynamometry can be divided into two sepa...