Quantitative evaluation of muscle activity by integrated electromyogram

2006 ◽  
Vol 154 (2) ◽  
pp. 52-57
Author(s):  
Yoshiaki Hara ◽  
Masaki Yoshida ◽  
Masafumi Matsumura ◽  
Noriaki Ichihashi
Keyword(s):  
Quantitative Evaluation ◽  
Muscle Activity ◽  
Integrated Electromyogram

scholarly journals The Quantitative Evaluation of the Muscle Activity by Integrated Electromyogram

2004 ◽  
Vol 124 (2) ◽  
pp. 431-435 ◽  
Author(s):  
Yoshiaki Hara ◽  
Masaki Yoshida ◽  
Masafumi Matumura ◽  
Noriaki Ichihashi
Keyword(s):  
Quantitative Evaluation ◽  
Muscle Activity ◽  
Integrated Electromyogram

scholarly journals Evaluation of Muscle Activity and Human Standing Stability Index Using the Swash Plate in a Disturbance Application

2021 ◽  
Vol 33 (4) ◽  
pp. 868-876
Author(s):  
Tsutomu Togoe ◽  
Pham Hoang Tung ◽  
Koki Honda ◽  
Yasutaka Nakashima ◽  
Motoji Yamamoto ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Lower Limb ◽  
Muscle Activity ◽  
Stability Index ◽  
Standing Position ◽  
Experimental Conditions ◽  
Lower Limb Muscles ◽  
Swash Plate ◽  
Limb Muscles ◽  
Left And Right

Human standing stability was evaluated using a swash plate drop device in a disturbance application. Under different experimental conditions using the device, electromyogram (EMG) measurements showed that the left and right lower limb muscles were used differently. It also demonstrated that the dynamics also differed depending on the experimental conditions. In particular, the dynamics of standing stabilization in a tandem standing position and a normal standing position significantly differed, and the activities of related muscles were also significantly different; this indicates that standing stability may potentially depend on the subjects. These results indicate the need for the comprehensive consideration of the standing and disturbance conditions during the quantitative evaluation of human standing stability.

Quadriceps Concentric EMG Activity Is Greater than Eccentric EMG Activity during the Lateral Step-Up Exercise

2000 ◽  
Vol 9 (2) ◽  
pp. 124-134 ◽  
Author(s):  
Angie Selseth ◽  
Marilyn Dayton ◽  
Mitchell L. Cordova ◽  
Christopher D. Ingersoll ◽  
Mark A. Merrick
Keyword(s):  
Muscle Activity ◽  
Repeated Measures ◽  
Muscle Activation ◽  
Vastus Lateralis ◽  
Previous History ◽  
Emg Activity ◽  
Maximal Voluntary Isometric Contraction ◽  
Concentric Contractions ◽  
History Of ◽  
Integrated Electromyogram

Purpose:To analyze vastus medialis obliquus (VMO) and vastus lateralis (VL) muscle activity during the concentric and eccentric phases of a lateral step-up exercise.Design:Repeated-measures. Dependent variable: the integrated electromyogram measured as a percentage of the maximal voluntary isometric contraction of the VMO and VL muscles. Independent variable: muscle contraction with 2 levels (concentric and eccentric).Subjects:Twenty-three volunteers with no previous history of knee surgery or anterior knee pain.Methods:Surface electrodes were positioned over the VMO and VL, and electromyographic data were collected during the exercise.Results:The 2 muscle phases of contraction were different when both dependent variables were considered simultaneously (F2,7= 33.2,P< .001). Concentric contractions produced greater muscle activity for VL (P< .05) and VMO (P< .05).Conclusions:Because concentric contractions produce greater activity than eccentric contractions do during the lateral step-up exercise, they provide a stronger stimulus for muscle activation, which might result in greater muscle strength gains.

Quantitative evaluation of -ray spectra from scintillation measurements

Physica ◽  
1952 ◽  
Vol 18 (2) ◽  
pp. 1147-1150
Author(s):  
D MAEDER ◽  
V WINTERSTEIGER
Keyword(s):  
Quantitative Evaluation

Myoelectric Activity Differences in Three Learning Sessions

2002 ◽  
Vol 16 (2) ◽  
pp. 92-96
Author(s):  
Tiina Ritvanen ◽  
Reijo Koskelo ◽  
Osmo H„nninen
Keyword(s):  
High School Students ◽  
Muscle Activity ◽  
Muscle Tension ◽  
Emg Activity ◽  
Traditional Learning ◽  
Myoelectric Activity ◽  
School Students ◽  
Language Laboratory ◽  
Upper Trapezius ◽  
Muscle Groups

Abstract This study follows muscle activity in three different learning sessions (computer, language laboratory, and normal classroom) while students were studying foreign languages. Myoelectric activity was measured in 21 high school students (10 girls, 11 boys, age range 17-20 years) by surface electromyography (sEMG) from the upper trapezius and frontalis muscles during three 45-min sessions. Root mean square (RMS) average from both investigated muscles was calculated. The EMG activity was highest in both muscle groups in the computer-aided session and lowest in the language laboratory. The girls had higher EMG activity in both investigated muscle groups in all three learning situations. The measured blood pressure was highest at the beginning of the sessions, decreased within 10 min, but increased again toward the end of the sessions. Our results indicate that the use of a computer as a teaching-aid evokes more constant muscle activity than the traditional learning situations. Since muscle tension can have adverse health consequences, more research is needed to determine optimal classroom conditions, especially when technical aids are used in teaching.

Investigating the effects of slipping on lumbar muscle activity, kinematics, and kinetics

2012 ◽  
Author(s):  
Ehsan Rashedi ◽  
Bochen Jia ◽  
Maury A. Nussbaum ◽  
Thurmon E. Lockhart
Keyword(s):  
Muscle Activity ◽  
Lumbar Muscle ◽  
Kinematics And Kinetics
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