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https://www.readbyqxmd.com/read/28639056/relevance-of-the-clinical-and-psychophysiological-variables-in-the-dyssynergic-defecation-a-comparative-study-in-elderly-subjects
#1
Miguel A Simón, Ana M Bueno
The relevance of several clinical and psychophysiological variables in the dyssynergic defecation in elderly subjects was investigated in this study. To accomplish this, 30 elderly subjects (10 without anorectal disorders, 10 with chronic constipation and 10 with dyssynergic defecation) were repeatedly assessed once per week for 4 weeks, with the following measures being collected at each session: EMG-activity (µV) of the external anal sphincter (at rest, during squeezing, and during straining to defecate), stool frequency, difficulty defecation level, pain grade during defecation, and satisfaction level after evacuation...
June 21, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28579089/muscle-strength-and-force-development-in-high-and-low-functioning-elderly-men-influence-of-muscular-and-neural-factors
#2
Charlotte H Pion, Sébastien Barbat-Artigas, Félix St-Jean-Pelletier, Stéphanie Chevalier, Pierrette Gaudreau, Gilles Gouspillou, José A Morais, Marc Bélanger, Mylène Aubertin-Leheudre
BACKGROUND: Aging leads to a loss of muscle strength and functional capacity likely resulting from a combination of neural and muscle alterations. The aim of this study was to identify possible disparities in muscle strength and force development profiles in high- and low-functioning elderly men and to investigate muscular and neurophysiological factors that could explain the differences. METHODS: Sixty community-dwelling men in good general health were divided in two groups based on a functional capacity (FC) z-score derived from 6 tests of the Short Physical Performance Battery and Senior Fitness Test (Normal and fast 4m-walk tests, normal and fast Timed-up and go, chair and stair tests)...
June 1, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28469567/the-spatial-distribution-of-ankle-muscles-activity-discriminates-aged-from-young-subjects-during-standing
#3
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/28411442/ankle-muscle-co-contractions-during-quiet-standing-are-associated-with-decreased-postural-steadiness-in-the-elderly
#4
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/28345674/skeletal-muscle-pump-drives-control-of-cardiovascular-and-postural-systems
#5
Ajay K Verma, Amanmeet Garg, Da Xu, Michelle Bruner, Reza Fazel-Rezai, Andrew P Blaber, Kouhyar Tavakolian
The causal interaction between cardio-postural-musculoskeletal systems is critical in maintaining postural stability under orthostatic challenge. The absence or reduction of such interactions could lead to fainting and falls often experienced by elderly individuals. The causal relationship between systolic blood pressure (SBP), calf electromyography (EMG), and resultant center of pressure (COPr) can quantify the behavior of cardio-postural control loop. Convergent cross mapping (CCM) is a non-linear approach to establish causality, thus, expected to decipher nonlinear causal cardio-postural-musculoskeletal interactions...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194659/activity-of-erector-spinae-during-trunk-forward-bending-and-backward-return-the-effects-of-age
#6
Iman Shojaei, Babak Bazrgari
Electromyography (EMG)-based measures of the trunk muscles behavior have been used for objective assessment of biomechanical impairments in patients with low back pain (LBP); yet the literature on normal age-related differences in such measures is scant. A cross-sectional study was designed to assess age-related differences in activity of trunk extensors during forward bending and backward return. Sixty asymptomatic individuals were recruited to form five gender-balanced age groups between 20 and 70 years old...
June 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28059942/efficacy-of-biofeedback-therapy-in-the-treatment-of-dyssynergic-defecation-in-community-dwelling-elderly-women
#7
Miguel A Simón, Ana M Bueno
AIM OF THE STUDY: The aim of this study was to evaluate the efficacy of biofeedback therapy in the treatment of dyssynergic defecation in chronically constipated community-dwelling elderly women. MATERIALS AND METHODS: After an initial assessment phase carried out during 1 month, 20 chronically constipated women with dyssynergic defecation were randomly assigned to either electromyographic biofeedback (EMG-BF) group (n=10) or control group (n=10). Outcome measures used to evaluate the efficacy of treatment were weekly stool frequency, sensation of incomplete evacuation, difficulty evacuation level, mean EMG-activity (μV) of the external anal sphincter during straining to defecate and Anismus index...
January 5, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27931004/increasing-trend-of-wearables-and-multimodal-interface-for-human-activity-monitoring-a-review
#8
REVIEW
Preeti Kumari, Lini Mathew, Poonam Syal
Activity recognition technology is one of the most important technologies for life-logging and for the care of elderly persons. Elderly people prefer to live in their own houses, within their own locality. If, they are capable to do so, several benefits can follow in terms of society and economy. However, living alone may have high risks. Wearable sensors have been developed to overcome these risks and these sensors are supposed to be ready for medical uses. It can help in monitoring the wellness of elderly persons living alone by unobtrusively monitoring their daily activities...
April 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27855311/effect-of-aging-on-regional-neuromuscular-regulation-within-human-rectus-femoris-muscle-during-stair-ascent-and-descent
#9
Kohei Watanabe, Motoki Kouzaki, Toshio Moritani
Our recent studies showed the rectus femoris (RF) muscle is regionally regulated during the level walking and this unique neuromuscular activation pattern is influenced by aging (Watanabe et al., 2014, 2016 J Biomech). We aimed to investigate and compare regional neuromuscular activation patterns along the RF muscle between the young and elderly during the stair walking. Fourteen young men (age: 20.4±1.0years) and 14 elderly men (age: 73.8±5.9years) performed the stair ascent and descent. Fifteen trials of three steps were performed for both stair ascent and descent...
November 10, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27799694/the-effect-of-intervention-according-to-muscle-contraction-type-on-the-cerebral-cortex-of-the-elderly
#10
Jeong-Il Kang, Dae-Keun Jeong, Hyun Choi
[Purpose] Here we investigated the activity of the cerebral cortex after resistance training in the elderly. We evaluated the clinical neuropsychological basis of 2 contractile types, and determined the usefulness of a movement-related cortical potential (MRCP) from an electroencephalography (EEG). [Subjects and Methods] The subjects were 11 females and 11 males aged between 65 and 70 years. The subjects were randomly assigned into a group that performed an eccentric contraction exercise (experimental group I, n=11) and a group that performed a concentric contraction exercise (experimental group II, n=11)...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27720736/the-effect-of-a-crunchy-pseudo-chewing-sound-on-perceived-texture-of-softened-foods
#11
Hiroshi Endo, Shuichi Ino, Waka Fujisaki
Elderly individuals whose ability to chew and swallow has declined are often restricted to unpleasant diets of very soft food, leading to a poor appetite. To address this problem, we aimed to investigate the influence of altered auditory input of chewing sounds on the perception of food texture. The modified chewing sound was reported to influence the perception of food texture in normal foods. We investigated whether the perceived sensations of nursing care foods could be altered by providing altered auditory feedback of chewing sounds, even if the actual food texture is dull...
December 1, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27632533/altered-emg-patterns-in-diabetic-neuropathic-and-not-neuropathic-patients-during-step-ascending-and-descending
#12
Fabiola Spolaor, Zimi Sawacha, Gabriella Guarneri, Silvia Del Din, Angelo Avogaro, Claudio Cobelli
Diabetic peripheral neuropathy (DPN) causes motor control alterations during daily life activities. Tripping during walking or stair climbing is the predominant cause of falls in the elderly subjects with DPN and without (NoDPN). Surface Electromyography (sEMG) has been shown to be a valid tool for detecting alterations of motor functions in subjects with DPN. This study aims at investigating the presence of functional alterations in diabetic subjects during stair climbing and at exploring the relationship between altered muscle activation and temporal parameter...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27616640/electromyography-evaluation-of-masseter-and-temporalis-bite-force-and-quality-of-life-in-elderly-patients-during-the-adaptation-of-mandibular-implant-supported-overdentures
#13
Mariana Vilela Sônego, Marcelo Coelho Goiato, Daniela Micheline Dos Santos
OBJECTIVES: The aim of this study was to investigate the outcomes of the installation of two implant-supported overdentures until such treatment is complete. Although this treatment is well established in the literature, there are no studies comparing what happens to muscles and the quality of life (QoL) of patients during the treatment. METHODS: We selected 13 completely edentulous patients, according to inclusion and exclusion criteria, to rehabilitate with mandibular overdentures retained by two dental implants and a complete denture as antagonists...
September 11, 2016: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27534548/modulation-of-upper-esophageal-sphincter-ues-relaxation-and-opening-during-volume-swallowing
#14
Charles Cock, Corinne A Jones, Michael J Hammer, Taher I Omari, Timothy M McCulloch
UES opening occurs following cricopharyngeus deactivation and submental muscle contraction causing hyolaryngeal elevation and UES distraction. During impedance manometry, the inverse of impedance (admittance) can be used to measure bolus presence and infer UES opening. We hypothesized that the temporal relationship between UES relaxation, opening and hyolaryngeal elevation would change with increasing bolus volume. Simultaneous intramuscular cricopharyngeal (CP) electromyography (EMG), surface submental EMG (SM-EMG), and high-resolution impedance manometry were recorded in eight (aged 27 ± 7 years, 5 M) healthy volunteers, while swallowing 0...
August 17, 2016: Dysphagia
https://www.readbyqxmd.com/read/27446781/emg-activity-of-masseter-muscles-in-the-elderly-according-to-rheological-properties-of-solid-food
#15
Au Jin Kang, Don-Kyu Kim, Si Hyun Kang, Kyung Mook Seo, Hyoung Su Park, Ki-Hwan Park
OBJECTIVE: To assess the impact of aging on masticatory muscle function according to changes in hardness of solid food. METHODS: Each of fifteen healthy elderly and young people were selected. Subjects were asked to consume cooked rice, which was processed using the guidelines of the Universal Design Foods concept for elderly people (Japan Care Food Conference 2012). The properties of each cooked rice were categorized as grade 1, 2, 3 and 4 (5×10(3), 2×10(4), 5×10(4), and 5×10(5) N/m(2)) respectively...
June 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27189591/effects-of-age-and-sex-on-neuromuscular-mechanical-determinants-of-muscle-strength
#16
Rui Wu, Eamonn Delahunt, Massimiliano Ditroilo, Madeleine Lowery, Giuseppe De Vito
The aim of this study was to concurrently assess the effect of age on neuromuscular and mechanical properties in 24 young (23.6 ± 3.7 years) and 20 older (66.5 ± 3.8 years) healthy males and females. Maximal strength of knee extensors (KE) and flexors (KF), contractile rate of torque development (RTD) and neural activation of agonist-antagonist muscles (surface EMG) were examined during maximal voluntary isometric contraction (MVIC). Tissue stiffness (i.e. musculo-articular stiffness (MAS) and muscle stiffness (MS)) was examined via the free-oscillation technique, whereas muscle architecture (MA) of the vastus lateralis and subcutaneous fat were measured by ultrasonography...
June 2016: Age (2005-)
https://www.readbyqxmd.com/read/27177097/forward-and-inverse-dynamic-study-during-pedaling-comparison-between-the-young-and-the-elderly
#17
COMPARATIVE STUDY
Jeongwoo Seo, Jinseung Choi, Dongwon Kang, Seungtae Yang, Daehyeok Kim, Gyerae Tack
BACKGROUND: As it is not easy to investigate various variables that affect exercise efficacies and cause injuries while pedaling in the actual experiment, especially for the elderly, the musculoskeletal model simulation with a comparison of measured electromyography (EMG) data could be used to minimize experimental trials. OBJECTIVE: The measured EMG data were compared with the muscle activities from the musculoskeletal model through forward (FD) and inverse dynamic (ID) analysis...
April 29, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27105700/the-effect-of-vertical-whole-body-vibration-on-lower-limb-muscle-activation-in-elderly-adults-influence-of-vibration-frequency-amplitude-and-exercise
#18
Freddy M H Lam, L R Liao, Timothy C Y Kwok, Marco Y C Pang
OBJECTIVE: This study aimed to investigate how whole-body vibration (WBV) and exercise and their interactions influenced leg muscle activity in elderly adults. STUDY DESIGN: An experimental study with repeated measures design that involved a group of ambulatory, community-dwelling elderly adults (n=30; 23 women; mean age=61.4±5.3years). MAIN OUTCOME MEASURES: Muscle activity of the vastus lateralis (VL), biceps femoris (BF), tibialis anterior (TA), and gastrocnemius (GS) was measured by surface electromyography (EMG), while participants were performing seven different exercises during 4 WBV conditions (condition 1: frequency=30Hz, amplitude=0...
June 2016: Maturitas
https://www.readbyqxmd.com/read/26963478/a-method-for-early-detection-of-the-initiation-of-sit-to-stand-posture-transitions
#19
Abul Doulah, Xiangrong Shen, Edward Sazonov
A powered lower extremity orthotic brace can potentially be used to assist frail elderly during daily activities. This paper presents a method for an early detection of the initiation of sit-to-stand (SiSt) posture transition that can be used in the control of the powered orthosis. Unlike the methods used in prosthetic devices that rely on surface electromyography (EMG), the proposed method uses only sensors embedded into the orthosis brace attached to the limb. The method was developed and validated using data from a human study with 10 individuals...
April 2016: Physiological Measurement
https://www.readbyqxmd.com/read/26909030/the-effects-of-tai-chi-practice-on-intermuscular-beta-coherence-and-the-rubber-hand-illusion
#20
Catherine E Kerr, Uday Agrawal, Sandeep Nayak
Tai Chi (TC) is a slow-motion contemplative exercise that is associated with improvements in sensorimotor measures, including decreased force variability, enhanced tactile acuity, and improved proprioception, especially in elderly populations. Here, we carried out two studies evaluating the effect of TC practice on measures associated with sensorimotor processing. In study 1, we evaluated TC's effects on an oscillatory parameter associated with motor function, beta rhythm (15-30 Hz) coherence, focusing specifically on beta rhythm intermuscular coherence (IMC), which is tightly coupled to beta corticomuscular coherence (CMC)...
2016: Frontiers in Human Neuroscience
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