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Emg and aging

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https://www.readbyqxmd.com/read/28527720/overactive-bladder-oab-a-symptom-in-search-of-a-disease-its-relationship-to-specific-lower-urinary-tract-symptoms-and-conditions
#1
Jason P Van Batavia, Andrew J Combs, Angela M Fast, Kenneth I Glassberg
BACKGROUND: The ICCS defines OAB by the subjective symptom of urgency; detrusor overactivity (DO) is only implied. While no other symptom is required, OAB can also be associated with urinary frequency, decreased functional bladder capacity, and incontinence. OBJECTIVE: We sought to determine how often these associated findings occur in OAB and what if any uroflow/EMG-defined conditions are found to be associated with it. METHODS: The charts of 548 children (231M, 318F; mean age 9...
March 10, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28497384/physiological-responses-to-incremental-interval-and-continuous-counterweighted-single-leg-and-double-leg-cycling-at-the-same-relative-intensities
#2
Martin J MacInnis, Nathaniel Morris, Michael W Sonne, Amanda Farias Zuniga, Peter J Keir, Jim R Potvin, Martin J Gibala
PURPOSE: We compared physiological responses to incremental, interval, and continuous counterweighted single-leg and double-leg cycling at the same relative intensities. The primary hypothesis was that the counterweight method would elicit greater normalized power (i.e., power/active leg), greater electromyography (EMG) responses, and lower cardiorespiratory demand. METHODS: Graded-exercise tests performed by 12 men (age: 21 ± 2 years; BMI: 24 ± 3 kg/m(2)) initially established that peak oxygen uptake ([Formula: see text]; 76 ± 8...
May 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28493220/continuous-intraoperative-neural-monitoring-in-thyroid-surgery-a-mexican-experience
#3
Karla Verónica Chávez, Jackeline Ramírez, Juan Pablo Pantoja, Mauricio Sierra, David Velázquez-Fernández, Miguel F Herrera
Intraoperative continuous neural monitoring (C-IONM) during thyroid surgery has been recognized as a useful tool to identify and confirm recurrent laryngeal nerve integrity. The aim of the present study is to analyze electromyographic features and thresholds for normal vocal fold function in our initial experience with C-IONM in thyroid surgery. C-IONM was utilized in 57 patients who underwent thyroid surgery between July 2012 and December 2015. EMG parameters were analyzed looking for potential predictors of postoperative vocal fold dismotility...
May 10, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28477392/validity-of-different-tools-to-assess-sleep-bruxism-a-meta-analysis
#4
REVIEW
Elora Casett, Jéssica C Réus, Juliana Stuginski-Barbosa, André L Porporatti, Maria C Carra, Marco A Peres, Graziela De L Canto, Daniele Manfredini
This systematic review and meta-analysis (MA) aimed to evaluate the diagnostic validity of questionnaires, clinical assessment, and portable diagnostic devices compared to the reference standard method polysomnography (PSG) in assessing sleep bruxism (SB). Two reviewers searched electronic databases for diagnostic test accuracy studies that compared questionnaires, clinical assessment or portable diagnostic devices for SB, with the reference standard method PSG, comprising previous studies from all languages and with no restrictions regarding age, gender or time of publication...
May 6, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28476512/reactivity-of-alpha-rhythms-to-eyes-opening-the-berger-effect-during-menstrual-cycle-phases
#5
Olga M Bazanova, E D Nikolenko, Robert J Barry
The impact of the menstrual cycle on the alpha EEG reactivity to eyes opening (Berger effect) was studied in relation to hormonal and EMG indices. Repeated measurements of salivary progesterone and cortisol, forehead EMG, and EEG alpha-activity indices in 76 healthy women aged 18-27 were obtained in resting eyes closed (1min) and eyes open (30s) conditions. Ten recording sessions occurred, at 2-3day intervals, during 1-2 menstrual cycles. For example, if a participant had a menstrual cycle length of 30-32days, she could finish the investigation during 1cycle, but if she had a 24day cycle, she would finish the investigation over 1 1/2cycles...
May 2, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28476511/training-of-support-afferentation-in-postmenopausal-women
#6
O M Bazanova, N V Kholodina, E D Nikolenko, J Payet
We have recently shown a diminishing of the Menopause Index in old-aged women who underwent special training directed at the enhancement of support afferentation by increasing the plantar forefoot sensitivity (Bazanova et al., 2015). Based on these results we hypothesized, that purposeful training of support afferentation through stimulation of plantar graviceptors by Aikido practice will decrease excessive postural and psychoemotional tension not only in rest condition, but during cognitive and manual task performance too...
May 2, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28474495/children-with-chronic-stress-induced-recurrent-muscle-pain-have-enhanced-startle-reaction
#7
G Alfvén, S Grillner, E Andersson
BACKGROUND: Children with recurrent pain of negative chronic stress origin from different locations have a characteristic pattern of tender points in the temporal, trapezoid, great pectoral and abdominal muscles. We tested the hypothesis that the startle reaction is activated in these children and that some of the startle-activated muscles are related to the tender point pattern and the recurrent pain. METHODS: In children/adolescents, aged 10-17 years, 19 with recurrent psychosomatic pain (PAIN) and 23 controls (CON) we measured and analysed resting activity and acoustic startle response with electromyography (EMG) for the muscles involved in the pattern of tender points and also the lumbar erector spinae...
May 4, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28469567/the-spatial-distribution-of-ankle-muscles-activity-discriminates-aged-from-young-subjects-during-standing
#8
Fabio V Dos Anjos, Talita P Pinto, Marco Gazzoni, Taian M Vieira
During standing, age-related differences in the activation of ankle muscles have been reported from surface electromyograms (EMGs) sampled locally. Given though activity seems to distribute unevenly within ankle muscles, the local sampling of surface EMGs may provide a biased view on how often and how much elderly and young individuals activate these muscles during standing. This study aimed therefore at sampling EMGs from multiple regions of individual ankle muscles to evaluate whether the distribution of muscle activity differs between aged and young subjects during standing...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28468994/spike-timing-dependent-plasticity-in-lower-limb-motoneurons-after-human-spinal-cord-injury
#9
M A Urbin, Recep Ali Ozdemir, Toshiki Tazoe, Monica A Perez
Recovery of lower-limb function after spinal cord injury (SCI) likely depends on transmission in the corticospinal pathway. Here, we examined whether paired corticospinal-motoneuronal stimulation (PCMS) changes transmission at spinal synapses of lower-limb motoneurons in humans with chronic incomplete SCI and aged-matched controls. We used 200 pairs of stimuli where corticospinal volleys evoked by transcranial magnetic stimulation (TMS) over the leg representation of the motor cortex were timed to arrive at corticospinal-motoneuronal synapses of the tibialis anterior (TA) muscle 2 ms before antidromic potentials evoked in motoneurons by electrical stimulation of the common peroneal nerve (PCMS+) or when antidromic potentials arrived 15 or 28 ms before corticospinal volleys (PCMS-) on separate days...
May 3, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28463899/acute-metabolic-response-energy-expenditure-and-emg-activity-in-sitting-and-standing
#10
Ying Gao, Mika Silvennoinen, Arto Pesola, Heikki Kainulainen, Neil J Cronin, Taija Finni
PURPOSE: While merely standing up interrupts sedentary behavior, it is important to study acute metabolic responses during single bouts of sitting and standing to understand the physiological processes affecting the health of office workers. METHODS: 18 healthy middle aged women aged 49.4 ± 7.9 years (range: 40 to 64) with a BMI of 23.4 ± 2.8 kg·m volunteered for this laboratory-based randomized crossover trial where they performed two hours desk work either in sitting or standing postures after overnight fasting...
May 2, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28457006/quantitative-emg-in-ambulatory-dmd-boys
#11
Sumit Verma, Jenny Lin, Curtis Travers, Courtney McCracken, Durga Shah
INTRODUCTION: This study's objective was to evaluate quantitative EMG (QEMG) using multi-MUP analysis in Duchenne Muscular Dystrophy (DMD). METHODS: Ambulatory DMD boys, ages 5-15 years, were evaluated with QEMG at 6 month intervals over 14 months. EMG was performed in the right biceps brachii (BB) and tibialis anterior (TA) muscles. Normative QEMG data was obtained from age-matched healthy boys. Wilcoxon signed-rank tests were performed. RESULTS: Eighteen DMD subjects were enrolled with a median age of 7 years (interquartile range: 7 - 10)...
April 29, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28453441/fetal-cardiac-time-intervals-in-healthy-pregnancies-an-observational-study-by-fetal-ecg-monica-healthcare-system
#12
Annette Wacker-Gussmann, Cordula Plankl, Maria Sewald, Karl-Theo Maria Schneider, Renate Oberhoffer, Silvia M Lobmaier
BACKGROUND: Fetal electrocardiogram (fECG) can detect QRS signals in fetuses from as early as 17 weeks' gestation; however, the technique is limited by the minute size of the fetal signal relative to noise ratio. The aim of this study was to evaluate precise fetal cardiac time intervals (fCTIs) with the help of a newly developed fetal ECG device (Monica Healthcare System). METHODS: In a prospective manner we included 15-18 healthy fetuses per gestational week from 32 weeks onwards...
April 28, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28433870/automated-detection-of-premature-delivery-using-empirical-mode-and-wavelet-packet-decomposition-techniques-with-uterine-electromyogram-signals
#13
U Rajendra Acharya, Vidya K Sudarshan, Soon Qing Rong, Zechariah Tan, Choo Min Lim, Joel Ew Koh, Sujatha Nayak, Sulatha V Bhandary
An accurate detection of preterm labor and the risk of preterm delivery before 37 weeks of gestational age is crucial to increase the chance of survival rate for both mother and the infant. Thus, the uterine contractions measured using uterine electromyogram (EMG) or electro hysterogram (EHG) need to have high sensitivity in the detection of true preterm labor signs. However, visual observation and manual interpretation of EHG signals at the time of emergency situation may lead to errors. Therefore, the employment of computer-based approaches can assist in fast and accurate detection during the emergency situation...
April 18, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28426509/log-transformed-emg-amplitude-power-output-relationship-single-leg-knee-extensor-versus-single-leg-cycle-ergometry
#14
Eric B Noble, Joshua M Pilarski, Harshal K Vora, Jorge M Zuniga, Moh H Malek
Comparing and contrasting motor unit recruitment and activation for the same muscles for multiple versus single-joint exercise may provide a better understanding of neuromuscular fatigue. The purpose of this study, therefore, is to compare the slope and y-intercept terms for the three superficial quadriceps femoris (vastus lateralis, rectus femoris, and vastus medialis) muscles derived from the log-transformed EMG amplitude-power output relationship between the single-leg knee-extensor ergometry and the single-leg cycle ergometry...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28422571/reliability-of-measuring-lower-limb-muscle-emg-activity-ratio-in-activities-of-daily-living-with-electrodes-embedded-in-the-clothing
#15
Dagny Bengs, Ira Jeglinsky, Jukka Surakka, Thomas Hellsten, Joachim Ring, Jyrki Kettunen
CONTEXT: Using technical clothes with electrodes embedded in the clothing makes it possible to record the electrical activity produced by the activity of the skeletal muscles in activities of daily living. OBJECTIVE: The aim of the study was to investigate the reliability of measuring lower-limb left-right electromyography (EMG) activity ratio with smart shorts during stair descent, stair ascent, and repeated unloaded squats among healthy working-aged subjects. METHODS: Seventeen females (mean age 25...
April 19, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28418363/-correlation-of-the-intra-operative-neuromonitoring-data-and-emg-characteristics-of-post-operative-motor-deficit-in-patients-with-spinal-deformities
#16
А P Shein, М S Sayphutdinov, А А Skripnikov, G А Krivoruchko, S О Ryabykh
AIM: To correlate electroneuromyigraphic (ENMG) manifestations of post-operative motor deficit developed in patients after spinal deformity correction with qualitative evaluation of the severity of intra-operative pyramidal disorders according to protocol of intra-operative neuromonitoring (IONM). MATERIAL AND METHODS: ENMG data of 87 patients aged 6-43 years with spinal deformities of different etiology were analyzed before and after surgical correction and were correlated with intra-operative neuromonitoring course...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28416354/unilateral-jumps-in-different-directions-a-novel-assessment-of-soccer-associated-power
#17
Conall F Murtagh, Jos Vanrenterghem, Andrew O'Boyle, Ryland Morgans, Barry Drust, Robert M Erskine
OBJECTIVES: We aimed to determine whether countermovement jumps (CMJs; unilateral and bilateral) performed in different directions assessed independent lower-limb power qualities, and if unilateral CMJs would better differentiate between elite and non-elite soccer players than the bilateral vertical (BV) CMJ. DESIGN: Elite (n=23; age, 18.1±1.0years) and non-elite (n=20; age, 22.3±2.7years) soccer players performed three BV, unilateral vertical (UV), unilateral horizontal-forward (UH) and unilateral medial (UM) CMJs...
March 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28413116/trunk-muscle-emg-during-intermediate-pilates-mat-exercises-in-beginner-healthy-and-chronic-low-back-pain-individuals
#18
Ivye L R Pereira, Bergson Queiroz, Jefferson Loss, César Amorim, Isabel C N Sacco
OBJECTIVE: The purpose of this study was to compare the electromyographic pattern of core muscles during intermediate Pilates mat exercises between healthy people and those with low back pain. METHODS: We evaluated healthy participants (n = 19; mean ± standard deviation [SD]: age 28 ± 8 years, body mass 65 ± 10 kg, height 160.0 ± 9.1 cm) and a low back pain group (n = 13; mean ± SD: age 30 ± 9 years, body mass 67 ± 12 kg, height 170.0 ± 6.6 cm). Electromyographic analysis assessed the multifidus, external oblique, internal oblique, and rectus abdominis muscles during classical Pilates exercises (single leg stretch, criss-cross, and dead bug)...
April 13, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28411442/ankle-muscle-co-contractions-during-quiet-standing-are-associated-with-decreased-postural-steadiness-in-the-elderly
#19
Albert H Vette, Dimitry G Sayenko, Michael Jones, Masaki O Abe, Kimitaka Nakazawa, Kei Masani
It has been reported that the elderly use co-contraction of the tibialis anterior (TA) and plantarflexor muscles for longer duration during quiet standing than the young. However, the particular role of ankle muscle co-contractions in the elderly during quiet standing remains unclear. Therefore, the objective of this study was to investigate the association between ankle muscle co-contractions and postural steadiness during standing in the elderly. Twenty-seven young (27.2±4.5yrs) and twenty-three elderly (66...
April 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28408873/neurofeedback-of-slow-cortical-potentials-in-children-with-attention-deficit-hyperactivity-disorder-a-multicenter-randomized-trial-controlling-for-unspecific-effects
#20
Ute Strehl, Pascal Aggensteiner, Daniel Wachtlin, Daniel Brandeis, Björn Albrecht, Maria Arana, Christiane Bach, Tobias Banaschewski, Thorsten Bogen, Andrea Flaig-Röhr, Christine M Freitag, Yvonne Fuchsenberger, Stephanie Gest, Holger Gevensleben, Laura Herde, Sarah Hohmann, Tanja Legenbauer, Anna-Maria Marx, Sabina Millenet, Benjamin Pniewski, Aribert Rothenberger, Christian Ruckes, Sonja Wörz, Martin Holtmann
Background: Neurofeedback (NF) in children with attention-deficit/hyperactivity disorder (ADHD) has been investigated in a series of studies over the last years. Previous studies did not unanimously support NF as a treatment in ADHD. Most studies did not control for unspecific treatment effects and did not demonstrate that self-regulation took place. The present study examined the efficacy of NF in comparison to electromyographic (EMG) feedback to control for unspecific effects of the treatment, and assessed self-regulation of slow cortical potentials (SCPs)...
2017: Frontiers in Human Neuroscience
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