Showing posts with label article. Show all posts
Showing posts with label article. Show all posts

Tuesday, April 24, 2012

ESP LTD GUITARS OFFER EMG PICKUPS.: An article from: Music Trades

ESP LTD GUITARS OFFER EMG PICKUPS.: An article from: Music Trades Review



This digital document is an article from Music Trades, published by Music Trades Corp. on July 1, 1999. The length of the article is 314 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: ESP LTD GUITARS OFFER EMG PICKUPS.
Publication:Music Trades (Magazine/Journal)
Date: July 1, 1999
Publisher: Music Trades Corp.
Volume: 147 Issue: 6 Page: 224

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Monday, March 19, 2012

EMG power frequency spectrum shifts during repeated isokinetic knee and arm movements. (Research Note).(electromyogram): An article from: Research Quarterly for Exercise and Sport

EMG power frequency spectrum shifts during repeated isokinetic knee and arm movements. (Research Note).(electromyogram): An article from: Research Quarterly for Exercise and Sport Review



This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on March 1, 2002. The length of the article is 4475 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: EMG power frequency spectrum shifts during repeated isokinetic knee and arm movements. (Research Note).(electromyogram)
Author: Raymond So
Publication:Research Quarterly for Exercise and Sport (Refereed)
Date: March 1, 2002
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: 73 Issue: 1 Page: 98(9)

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Tuesday, January 31, 2012

Inside EMG pick-ups. (EMG Inc.)(Guitar Market Reports): An article from: Music Trades

Inside EMG pick-ups. (EMG Inc.)(Guitar Market Reports): An article from: Music Trades Review



This digital document is an article from Music Trades, published by Music Trades Corp. on October 1, 1995. The length of the article is 1590 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Inside EMG pick-ups. (EMG Inc.)(Guitar Market Reports)
Publication:Music Trades (Magazine/Journal)
Date: October 1, 1995
Publisher: Music Trades Corp.
Volume: v143 Issue: n9 Page: p104(3)

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Friday, January 27, 2012

Distribution of Fractionated Response Times and EMG Recordings of Individuals With Mental Retardation.(Review) (book review): An article from: Research Quarterly for Exercise and Sport

Distribution of Fractionated Response Times and EMG Recordings of Individuals With Mental Retardation.(Review) (book review): An article from: Research Quarterly for Exercise and Sport Review



This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on March 1, 2001. The length of the article is 419 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Distribution of Fractionated Response Times and EMG Recordings of Individuals With Mental Retardation.(Review) (book review)
Publication:Research Quarterly for Exercise and Sport (Refereed)
Date: March 1, 2001
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: 72 Issue: 1 Page: A-101

Article Type: Book Review

Distributed by Thomson Gale


Friday, January 20, 2012

EMG offers HZ pickup line. (Product News).: An article from: Music Trades

EMG offers HZ pickup line. (Product News).: An article from: Music Trades Review



This digital document is an article from Music Trades, published by Music Trades Corp. on March 1, 2003. The length of the article is 799 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: EMG offers HZ pickup line. (Product News).
Publication:Music Trades (Magazine/Journal)
Date: March 1, 2003
Publisher: Music Trades Corp.
Volume: 151 Issue: 2 Page: 182(3)

Distributed by Thomson Gale


Saturday, January 14, 2012

EMG trapezius muscle activity pattern in string players: Part II-Influences of basic body awareness therapy on the violin playing technique [An article ... Journal of Industrial Ergonomics]

EMG trapezius muscle activity pattern in string players: Part II-Influences of basic body awareness therapy on the violin playing technique [An article ... Journal of Industrial Ergonomics] Review



This digital document is a journal article from International Journal of Industrial Ergonomics, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
This study used electromyography (EMG) to investigate if violinists could play with a greater variation in the trapezius muscle activity pattern after an 8-week training program with Basic Body Awareness Therapy (Basic BAT), as compared with a reference group. Five professional orchestra violinists who trained Basic BAT were compared to nine violinists working as violin teachers or music students at higher education level who did not take part in any training. The trapezius muscle activity, while playing a piece of music, was monitored by bilateral surface EMG before and after the 8-week training period. Exposure Variation Analysis (EVA) and Principal Component Analysis (PCA) were used for the EMG analyses. No significant differences were found in the trapezius muscle activation between the Basic BAT-trained group and the reference group. The training group perceived positive changes in breathing, muscular tension, postural control and concentration mainly during practice sessions. Musicians might benefit from practicing warming up, taking regular pauses to recover and proper working technique in activities other than playing an instrument. Relevance to industry: Proper work technique, work postures and movements are important to prevent neck and shoulder problems. This study shows a pedagogical approach to modify posture and bodily reactions during work tasks.


Friday, January 13, 2012

EMG PICKUPS.: An article from: Music Trades

EMG PICKUPS.: An article from: Music Trades Review



This digital document is an article from Music Trades, published by Music Trades Corp. on February 1, 2001. The length of the article is 1850 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: EMG PICKUPS.
Publication:Music Trades (Magazine/Journal)
Date: February 1, 2001
Publisher: Music Trades Corp.
Volume: 149 Issue: 1 Page: 198

Distributed by Thomson Gale


Wednesday, January 4, 2012

Mechanical load and EMG activity in the neck induced by different head-worn equipment and neck postures [An article from: International Journal of Industrial Ergonomics]

Mechanical load and EMG activity in the neck induced by different head-worn equipment and neck postures [An article from: International Journal of Industrial Ergonomics] Review



This digital document is a journal article from International Journal of Industrial Ergonomics, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Background: When working in darkness, helicopter pilots often use night vision goggles (NVG) and a counterweight (CW) attached to the helmet. In addition, missions also entail whole-body vibration and ergonomically unfavorable neck and body postures. The present aim was to assess the mechanical load and compare it with previously published data comprising recordings of muscle activity induced by different head-worn equipment used by helicopter pilots. Methods: Activity in left upper and lower dorsal neck muscles was recorded in 14 Swedish helicopter pilots, using electromyography (EMG) when wearing (i) helmet, (ii) helmet and NVG, and (iii) helmet, NVG and CW in a laboratory setting. The activity was recorded in a random order with the head in neutral position and at 20^o neck flexion. The induced load for the cervical spine in these conditions was calculated using a sagittal, static, biomechanical model. Results: The induced flexing load moment and muscle activity increased with the NVG and decreased from that level with the CW. However, the magnitude of the induced load was higher than the muscle activity indicated, especially when related to maximum strength. Conclusion: At low loads, as apparent in the present study, substantial increases in induced load moment are entailed, with only a comparatively small increase in neck-muscle activation levels. This must be considered when using EMG in the assessment of work load and in ergonomic interventions. Relevance to industry: As EMG is a common method of assessing excessive muscle activity as a sign of workload exposure, it is essential to note the non-linear relation between the neck-muscle activity and the induced flexing load moment caused by head-worn equipment.


Friday, December 30, 2011

EMG trapezius muscle activity pattern in string players: [An article from: International Journal of Industrial Ergonomics]

EMG trapezius muscle activity pattern in string players: [An article from: International Journal of Industrial Ergonomics] Review



This digital document is a journal article from International Journal of Industrial Ergonomics, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Work related neck and shoulder disorders are a great problem for string musicians. A playing technique with more relaxed muscles and a greater variation in the muscle activity pattern, i.e., with shorter sequences at a varied number of amplitude levels as reflected by electromyography (EMG), might prevent pain. This study used EMG to study variations in the trapezius muscle activity pattern in 12 string musicians performing a piece of music at two playing sessions separated by a ten-week interval. Nine of the string musicians played violin, two viola and one cello. Exposure variation analysis and principal component analysis were used for analysis of the EMG. The trapezius muscle activity pattern was similar in the first and second playing sessions showing that each musician repeated his/her own muscular activity pattern. However, there was considerable variability in the muscle activity pattern between cello, violin and viola players and between individual violin players. Thus, this EMG method has the potential to identify variations and reproducibility of trapezius muscle activity in string musicians. This method may be used to analyse individual differences when performing a musical work task and to evaluate intervention studies. Relevance to industry: Intervention studies on muscle activity pattern which try to change the work technique need to be evaluated.


Saturday, December 24, 2011

Archery performance level and repeatability of event-related EMG [An article from: Human Movement Science]

Archery performance level and repeatability of event-related EMG [An article from: Human Movement Science] Review



This digital document is a journal article from Human Movement Science, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The purpose of the current study was to compare the repeatability of electromyographic linear envelopes (LE) of archery groups. Surface electromyography (EMG) signals of musculus flexor digitorum superficialis (MFDS) and extensor digitorum (MED) of 23 participants (seven skilled, six beginner archers and ten non-archers) were recorded during archery shooting. Two-second periods (clicker falls at first second) of 12 shots' EMG data were recorded, full-wave rectified and filtered (60ms moving-average filter) for each participant's drawing arm. Repeatability was investigated by using a statistical criterion, variance ratio (VR). Archers' performances were evaluated in terms of FITA scores. The results showed that FITA scores were significantly correlated to the VRs of MFDS and MED. EMG LEs were more repeatable among archers than non-archers. Therefore, we inferred that VRs of MFDS and MED might be important variables for (a) assessing shooting techniques, (b) evaluation of archers' progress, and (c) selection of talented archers.


Saturday, December 17, 2011

Velocity-dependent EMG activity of masseter and sternocleidomastoideus muscles during a ballistic arm thrusting movement [An article from: Human Movement Science]

Velocity-dependent EMG activity of masseter and sternocleidomastoideus muscles during a ballistic arm thrusting movement [An article from: Human Movement Science] Review



This digital document is a journal article from Human Movement Science, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Two experiments were conducted to investigate the functional relationship between the general somatic motor function and the oral motor function. In Experiment 1, we analyzed the relationship between the amount of masseter muscle (MSS) activity and the velocity of a ballistic, 'karate-do' arm thrusting movement (ThrMov). ThrMov velocity was measured from video images taken with a high-speed CCD camera at a frequency of 500Hz. EMGs of MSS and sternocleidomastoideus (SCM) muscles as well as other related muscles were recorded simultaneously with video images in 6 varsity 'karate-do' athletes. Pearson's correlation coefficients were calculated between EMG amplitude and movement velocity. EMG activity of MSS as well as the other muscles increased as a function of ThrMov velocity in all participants, as evidenced by highly significant (p<.01) correlation coefficients, ranging from .64 to .87 (mean: .75). MSS EMG activity attained during ThrMovs performed at maximum velocity ranged between 14.6% and 113.8% of this muscle's MVC (45.7+/-39.3% MVC, mean+/-SD). SCM was also strongly active and closely associated with MSS. Besides changes in amount of EMG activity, it was further found that R-MSS EMG onset progressively shifted to the earlier phase of the ThrMov as ThrMov velocity increased. EMG onset time of R-MSS as well as R- and L-SCMs was negatively correlated with ThrMov velocity; when performed at maximum velocity MSS activation preceded the start of ThrMov by more than 100ms, whereas MSS was recruited last at ~150ms after the start of ThrMov when performed at moderate speed (~50% of maximum). In Experiment 2, the effects of head movement relative to the trunk on R-MSS and SCMs EMG activity were tested in both gazing and sidelong glancing conditions. A much smaller head rotation relative to the trunk was necessary during the ThrMov in the sidelong glancing condition compared to the gazing condition. R-MSS EMG activity was affected significantly by the difference between these conditions and decreased by 5.2% MVC in the sidelong glancing condition compared to the gazing condition. In association with the change in requirement for head movement between those conditions, EMG balance between the bilateral SCMs changed substantially. Finally, marked muscle activity during ThrMov was found in the MSS that was not directly involved in performing this movement, indicating a form of 'remote facilitation'.


Thursday, December 15, 2011

On some aspects of accuracy of the geopotential model EMG96 at the territory of Canada.: An article from: Revista Cartográfica

On some aspects of accuracy of the geopotential model EMG96 at the territory of Canada.: An article from: Revista Cartográfica Review



This digital document is an article from Revista Cartográfica, published by Thomson Gale on January 1, 2004. The length of the article is 4012 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: On some aspects of accuracy of the geopotential model EMG96 at the territory of Canada.
Author: Robert Tenzer
Publication:Revista Cartográfica (Magazine/Journal)
Date: January 1, 2004
Publisher: Thomson Gale
Issue: 78-79 Page: 13(10)

Distributed by Thomson Gale


Wednesday, December 14, 2011

EMG reveals subtle postpartum nerve injury.(Gynecology): An article from: OB GYN News

EMG reveals subtle postpartum nerve injury.(Gynecology): An article from: OB GYN News Review



This digital document is an article from OB GYN News, published by International Medical News Group on January 15, 2005. The length of the article is 489 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: EMG reveals subtle postpartum nerve injury.(Gynecology)
Author: Michele G. Sullivan
Publication:OB GYN News (Magazine/Journal)
Date: January 15, 2005
Publisher: International Medical News Group
Volume: 40 Issue: 2 Page: 11(1)

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Monday, December 12, 2011

Distinction between computer workers with and without work-related neck-shoulder complaints based on multiple surface EMG parameters [An article from: International Journal of Industrial Ergonomics]

Distinction between computer workers with and without work-related neck-shoulder complaints based on multiple surface EMG parameters [An article from: International Journal of Industrial Ergonomics] Review



This digital document is a journal article from International Journal of Industrial Ergonomics, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The aim of this study was to investigate whether it is possible to distinguish between computer workers with (cases) and without (controls) work-related neck-shoulder complaints by combining multiple surface electromyography (EMG) parameters in a logistic regression model. Fourteen controls and 13 cases performed five tasks: a unilateral dynamic hand task, a typing task, an editing task, a mouse task and a stress task. EMG of the trapezius muscle was measured using multi-channel electrode arrays. Root-mean-square value and median power frequency, the number of motor unit action potentials (MUAPs) per second and MUAP shape properties were assessed. Logistic regression models were developed for each task with data from ten controls and nine cases. The mouse task resulted in the most discriminative model with correct classification of 89% (jackknife evaluation). MUAP-related parameters were selected as most discriminative. Explorative evaluation with the remaining subjects resulted in a sensitivity and specificity of 3 out of 4 in both groups. In conclusion, a combination of multiple surface EMG parameters was capable of distinguishing computer workers with and without neck-shoulder complaints in a small pilot sample. Relevance to industry: The results are promising for development of an objective assessment method that can identify workers who are at risk to develop chronic neck-shoulder complaints.


Friday, December 9, 2011

Isokinetic Muscle Strength and Median Frequency of EMG Subsequent to a 10-Week Progressive Resistance Exercise Program.: An article from: Research Quarterly for Exercise and Sport

Isokinetic Muscle Strength and Median Frequency of EMG Subsequent to a 10-Week Progressive Resistance Exercise Program.: An article from: Research Quarterly for Exercise and Sport Review



This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on March 1, 2000. The length of the article is 653 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Isokinetic Muscle Strength and Median Frequency of EMG Subsequent to a 10-Week Progressive Resistance Exercise Program.
Publication:Research Quarterly for Exercise and Sport (Refereed)
Date: March 1, 2000
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: 71 Issue: 1 Page: A-108

Distributed by Thomson Gale