1 Neuromusculoskeletal disorders affecting walking ability are often difficult to manage, in part due to 2 limited understanding of how a patient’s lower extremity muscle excitations contribute to the patient’s 3 lower extremity joint moments. To assist in the study of these disorders, researchers have developed 4 electromyography (EMG) driven neuromusculoskeletal models utilizing scaled generi...

Our purpose was to determine the influence of posture and breathing route on electromyographic (EMG) activities of nasal dilator (NDM) and genioglossus (GG) muscles during exercise. Nasal and oral airflow rates and EMG activities of the NDM and GG were recorded in 10 subjects at rest and during upright and supine incremental cycling exercise to exhaustion. EMG activities immediately before and ...

Harvesting biomechanical energy from daily human body motions provides a promising and sustainable power solution for wearable electronics, whose current supplies, i.e., batteries, have unsatisfactory capacity durability due to volume, shape, flexibility constraints. Electromagnetic generators (EMGs) are favorable transducers because of their high energy-conversion efficiency, low dependence on...

AIM To analyze neuromuscular activity patterns of the trunk in healthy controls (H) and back pain patients (BPP) during one-handed lifting of light to heavy loads. METHODS After assessment of back pain (graded chronic pain scale according to von Korff) all subjects (n = 43) performed a warm-up (treadmill walking). Next, subjects were instructed to lift 3 × a 20 kg weight placed in front of th...

OBJECTIVE In order to develop a novel nerve guidance channel using porcine small intestinal submucosa (SIS) for nerve regeneration, we investigated the possibility of SIS, a tissue consisting of acellular collagen material without cellular immunogenicity, and containing many kinds of growth factors, as a natural material with a new bioactive functionality. METHODS Left sciatic nerves were cut...

background: most dentists complain of musculoskeletal disorders which can be caused by prolonged static posture, lack of suitable rest and other physical and psychological problems. objective: we evaluated a chair with a new ergonomic design which incorporated forward leaning chest and arm supports. methods: the chair was evaluated in the laboratory during task simulation and emg analysis on 12...

Exercise or Swiss balls are increasingly being used with conventional resistance exercises. There is little evidence supporting the efficacy of this approach compared to traditional resistance training on a stable surface. Previous studies have shown that force output may be reduced with no change in muscle electromyography (EMG) activity while others have shown increased muscle EMG activity wh...

The aim of this study was to analyze the electromyographic (EMG) activity of biceps brachii (BB) muscle under the same muscle contraction in three different locations. For this reason, arm wrestling contest was conducted to record the EMG signal from ten male subjects. Electrodes were placed on the three locations of upper arm BB; i.e. middle (belly) of BB (M), lower part (L) and upper part (U)...