Electromyograph (EMG) features have the properties of large variations and nonstationarity. An important issue in the classification of EMG is the classifier design. The major goal of this paper is to develop a classifier for the classification of eight kinds of prehensile postures to achieve high classification rate and reduce the online learning time. The cascaded architecture of neural netwo...

To examine the cerebral activity of the motor cortex during maximum movement, we measured regional cerebral blood flow (rCBF) in twelve normal volunteers, using near infrared spectroscopy (NIRS). Repetitive tapping of the right index finger was performed at 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 4.5 Hz, and during maximum effort (ME). The relative increase rate of rCBF during movement beginning...

Nitrate (NO3-) supplementation may enhance fatigue resistance and recovery, possibly because its additive effect on muscle blood flow (BF) during contraction. During submaximal contractions, there are numerous ways in which the decrease performance can be compensated for, such as motor unit (MU) recruitment, or increasing firing rate (MUFR). Given that changes BF correlates with MUFR, increased...

PURPOSE The purpose of this investigation was to determine the effect of stable and unstable conditions on one repetition maximum strength and muscle activity during dynamic squatting using absolute and relative loading. METHODS Ten recreationally weight-trained males participated in this study (age = 24.1 +/- 2.0 y, height = 178.0 +/- 5.6 cm, body mass = 83.7 +/- 13.4 kg, 1RM/body mass = 1.5...

Running Head:-ß1-blockade and EMG signal during exercise. ABSTRACT Aim: This study analysed the effect of selective ß1-blockade on neuromuscular recruitment characteristics during progressive endurance exercise. Methods: Ten healthy subjects ingested a selective ß1-blocker, acebutolol (200mg b.d.), for 7 days (for one of two cycling trials), with a 10-day wash out period between trials. On the ...

BACKGROUND: Many occupations require workers to stand for prolonged periods, which can cause discomfort, pain and even injures. Some supermarkets in life provide a foot pad checkout staff let them on it at work, thereby reducing standing fatigue caused by long time. The inclined platform is the same as mentioned above. That is, stepped relieved certain extent. OBJECTIVE: study aims analyze how ...

Work is intended to find out the relationship of biological signals with respect to the voluntary movement of human organs. Here the concentration is on elbow as a preliminary case, on experimental observation it is found out that the characteristics such as amplitude, frequency etc. of raw SEMG signals are very complex to relate it with the dynamics of elbow. A close analysis of Surface Electr...