scholarly journals Surface Electromyography of the Longissimus and Gluteus Medius Muscles in Greyhounds Walking and Trotting on Ground Flat, Up, and Downhill

Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 968
Author(s):  
Francisco Miró ◽  
Alfonso M. Galisteo ◽  
Juan L. Garrido-Castro ◽  
Joaquín Vivo
Keyword(s):  
Surface Electromyography ◽  
Physical Therapists ◽  
Gluteus Medius ◽  
Maximum Activity ◽  
Electromyographic Activity ◽  
Veterinary Surgeons ◽  
Therapeutic Value ◽  
Therapeutic Exercises ◽  
The Mean ◽  
Insight Into

In the field of canine rehabilitation, knowledge of muscle function in the therapeutic exercises prescribed is needed by physical therapists and veterinary surgeons. To gain insight into the function of longissimus dorsi (LD) and gluteus medius (GM) muscles in dogs, five Greyhounds performing leash walking and trotting on the ground flat, up (+7%), and downhill (−7%) were studied by surface electromyography, and the mean and maximum activity was compared. For the same incline, the surface electromyography (sEMG) of LD was higher (p < 0.05) at the trot than at the walk. In LD muscle, trotting uphill showed significantly higher maximum activity than any other exercise. A change of +7% incline or −7% decline affected (increased or decreased, respectively) the mean sEMG of the LD and GM muscles of dogs walking or trotting on the ground. When combined, the influence of gait and incline on electromyographic activity was analyzed, and walking at certain inclines showed no difference with trotting at certain inclines. Walking and trotting up and downhill added separate therapeutic value to flat motion. The results of the present study might contribute to a better understanding of the function of LD and GM muscles in dogs, this being especially useful for the field of canine rehabilitation.

scholarly journals What is Important in E-health Interventions for Stroke Rehabilitation? A Survey Study among Patients, Informal Caregivers, and Health Professionals.

2018 ◽  
Vol 10 (1) ◽  
pp. 15-28 ◽  
Author(s):  
Manon M. Wentink ◽  
Leti Van Bodegom-Vos ◽  
Berber Brouns ◽  
Henk J. Arwert ◽  
Thea P.M. Vliet Vlieland ◽  
...  
Keyword(s):  
Health Professionals ◽  
Stroke Rehabilitation ◽  
Physical Therapists ◽  
Informal Caregivers ◽  
Occupational Therapists ◽  
Survey Study ◽  
User Requirements ◽  
Stroke Patients ◽  
The Mean ◽  
Insight Into

Incorporating user requirements in the design of e-rehabilitation interventions facilitates their implementation. However, insight into requirements for e-rehabilitation after stroke is lacking. This study investigated which user requirements for stroke e-rehabilitation are important to stroke patients, informal caregivers, and health professionals. The methodology consisted of a survey study amongst stroke patients, informal caregivers, and health professionals (physicians, physical therapists and occupational therapists). The survey consisted of statements about requirements regarding accessibility, usability and content of a comprehensive stroke e-health intervention (4-point Likert scale, 1=unimportant/4=important). The mean with standard deviation was the metric used to determine the importance of requirements. Patients (N=125), informal caregivers (N=43), and health professionals (N=105) completed the survey. The mean score of user requirements regarding accessibility, usability and content for stroke e-rehabilitation was 3.1 for patients, 3.4 for informal caregivers and 3.4 for health professionals.  Data showed that a large number of user requirements are important and should be incorporated into the design of stroke e-rehabilitation to facilitate their implementation. 

scholarly journals Descriptive electromyography signals analysis of equine longissimus dorsi, rectus abdominis and gluteus medius muscles during maneuvers used to activate the core

2021 ◽  
Vol 73 (4) ◽  
pp. 843-852
Author(s):  
R.R. Barsanti ◽  
B.P.A. Fonseca ◽  
A.P. Silvatti ◽  
S.P. Simonato ◽  
V.G. Pereira ◽  
...  
Keyword(s):  
Surface Electromyography ◽  
Gluteus Medius ◽  
Rectus Abdominis ◽  
Longissimus Dorsi ◽  
Electromyographic Activity ◽  
Practical Application ◽  
Non Invasive ◽  
Transient Activation ◽  
Animal Muscle ◽  
Electromyography Signals

ABSTRACT Maneuvers to activate the equine's core can make a difference in their physical and psychic health. Although these activities are recommended and practiced, there is little research proving their effectiveness. This article aims to describe, through surface electromyography, the occurrences, durations and sequences activity of longissimus dorsi, rectus abdominis and gluteus medius during thoracolumbar flexion (TLF), lumbar and lumbosacral flexion (LLSF), global flexion (GF), which is the combination of TLF and LLSF, and tail traction (TT). Seven healthy adult horses of three different breeds performed five repetitions of these movements for five seconds (sec). Electromyographic activity was captured with non-invasive superficial sensors positioned in the skin regions covering these muscles. The sequence was performed once per animal, muscle activity captured by surface electromyography, data from two replicates of each animal were selected, analyzed on matLab software and data tabulation were described during each maneuver. These maneuvers provoked punctual and transient activation of muscles mentioned above, confirming the ability to activate equine core muscles. However, responses were not standardized, which means there were variations of occurrence, duration and sequence, suggesting that for practical application of those maneuvers it is necessary to perform more repetitions with longer durations to activate more muscles.

Some Explicit Results for the Mean Spherical Approximation for Mixtures of Yukawa Fluids

2008 ◽  
Vol 73 (3) ◽  
pp. 424-438 ◽  
Author(s):  
Douglas J. Henderson ◽  
Osvaldo H. Scalise
Keyword(s):  
Integral Equation ◽  
Spherical Approximation ◽  
Mean Spherical Approximation ◽  
Inverse Temperature ◽  
Temperature Expansion ◽  
Yukawa Fluid ◽  
The Mean ◽  
Full Solution ◽  
Insight Into ◽  
Reasonable Model

The mean spherical approximation (MSA) is of interest because it produces an integral equation that yields useful analytical results for a number of fluids. One such case is the Yukawa fluid, which is a reasonable model for a simple fluid. The original MSA solution for this fluid, due to Waisman, is analytic but not explicit. Ginoza has simplified this solution. However, Ginoza's result is not quite explicit. Some years ago, Henderson, Blum, and Noworyta obtained explicit results for the thermodynamic functions of a single-component Yukawa fluid that have proven useful. They expanded Ginoza's result in an inverse-temperature expansion. Even when this expansion is truncated at fifth, or even lower, order, this expansion is nearly as accurate as the full solution and provides insight into the form of the higher-order coefficients in this expansion. In this paper Ginoza's implicit result for the case of a rather special mixture of Yukawa fluids is considered. Explicit results are obtained, again using an inverse-temperature expansion. Numerical results are given for the coefficients in this expansion. Some thoughts concerning the generalization of these results to a general mixture of Yukawa fluids are presented.

A reduced-peak equivalence for queues with a mixture of light-tailed and heavy-tailed input flows

2003 ◽  
Vol 35 (03) ◽  
pp. 793-805 ◽  
Author(s):  
Sem Borst ◽  
Bert Zwart
Keyword(s):  
Service Rate ◽  
Opposite Case ◽  
Peak Rate ◽  
Workload Distribution ◽  
The Mean ◽  
Heavy Tailed ◽  
Insight Into

We determine the exact large-buffer asymptotics for a mixture of light-tailed and heavy-tailed input flows. Earlier studies have found a ‘reduced-load equivalence’ in situations where the peak rate of the heavy-tailed flows plus the mean rate of the light-tailed flows is larger than the service rate. In that case, the workload is asymptotically equivalent to that in a reduced system, which consists of a certain ‘dominant’ subset of the heavy-tailed flows, with the service rate reduced by the mean rate of all other flows. In the present paper, we focus on the opposite case where the peak rate of the heavy-tailed flows plus the mean rate of the light-tailed flows is smaller than the service rate. Under mild assumptions, we prove that the workload distribution is asymptotically equivalent to that in a somewhat ‘dual’ reduced system, multiplied by a certain prefactor. The reduced system now consists of only the light-tailed flows, with the service rate reduced by the peak rate of the heavy-tailed flows. The prefactor represents the probability that the heavy-tailed flows have sent at their peak rate for more than a certain amount of time, which may be interpreted as the ‘time to overflow’ for the light-tailed flows in the reduced system. The results provide crucial insight into the typical overflow scenario.

scholarly journals Quality Traits of Longissimus thoracis and lumborum and Gluteus medium Muscles from Cull Dairy Holstein-Friesian Cows

2015 ◽  
Vol 4 (6) ◽  
pp. 82
Author(s):  
Carlos Santos ◽  
Carlos Moniz ◽  
Cristina Roseiro ◽  
Vera Medeiros ◽  
Isabel Afonso ◽  
...  
Keyword(s):  
Aging Time ◽  
Gluteus Medius ◽  
Meat Tenderness ◽  
Mean Values ◽  
Lactating Cows ◽  
Holstein Friesian ◽  
The Mean ◽  
Sensorial Attributes ◽  
Main Effects ◽  
Friesian Cows

<em>Longissimus thoracis</em> and <em>lumborum</em> (LTL) and <em>Gluteus medius</em> (Gm) muscles of culled dairy cows, differing in production status (Ps) at slaughter and carcass weight were assessed for intramuscular fat and myoglobin, color, shear force (SF) and sensorial characteristics, after being aged for 2, 7, 14, 28 and 42 days. Meat from dried-off cows was lighter, redder and had higher yellowness and chroma (<em>P </em>&lt; 0.05) than lactating cows. Meat of finished fed cows improved in color in relation to counterparts directly slaughtered, but not significantly. Color parameters increased with aging time and the mean values of LTL and Gm significantly differed mostly among lactating cows. SF of meat was affected by aging time, muscle type, Ps and by their respective interactions (<em>P</em> &lt; 0.001), with a greater impact in LTL muscle. Meat from LTL muscle of dried-off cows had lower SF (47.30 N) than that of lactating cows (65.61 N) (<em>P</em> &lt; 0.05), but such differences were not significant for Gm muscle. Meat tenderness of finished fed cows was higher than counterparts not finished (<em>P</em> &gt; 0.05). Main effects and the results from their interactions were significant for all sensorial attributes (<em>P</em> &lt; 0.001).

scholarly journals Evidence-based practice questionnaire for physical therapists: Portuguese translation, adaptation, validity, and reliability

2019 ◽  
Vol 1 (2) ◽  
pp. 83
Author(s):  
Ricardo Maia Ferreira ◽  
Pedro Lopes Ferreira ◽  
Luis Cavalheiro ◽  
José Alberto Duarte ◽  
Rui Soles Gonçalves
Keyword(s):  
Internal Consistency ◽  
Evidence Based Practice ◽  
Physical Therapists ◽  
Evidence Based ◽  
Validity And Reliability ◽  
Average Percentage ◽  
European Portuguese ◽  
Draft Version ◽  
The Mean ◽  
Test Retest Reliability

BACKGROUND: Evidence-Based Practice (EBP) is becoming increasingly important in Physical Therapy (PT). For proper designing, implementing, disseminating and evaluating EBP in PT, a valid and reliable questionnaire measuring attitudes, knowledge, behavior, prerequisites, and barriers related to EBP and guidelines is needed. One questionnaire that could be used to collect this information is the “EBP Questionnaire”, developed by Jette et al. 2003. However, to our knowledge, no Portuguese version or published study with the Portuguese PT population was performed using this questionnaire. OBJECTIVE: The aim of this study was to translate, cross-culturally adapt and validate the “EBP Questionnaire” to European Portuguese and for the PT population. Material and Methods: A draft version was pilot tested for content validity (n=17), and a revised version was tested for test-retest reliability (n=72). The percentage of agreement and the Kappa coefficients between the 2 tests were analyzed. Additionally, the internal consistency was calculated. RESULTS: The preliminary final version of the European Portuguese EBP questionnaire was well accepted (only the items 22, 23, 45-51 needed to be reviewed). The mean average percentage of agreement was 82% (ranged 58–97%), and the Kappa coefficients were 0.658 (ranged 0.336–0.844). In the internal consistency, the mean average Cronbach’s α coefficients were 0.665 (ranged 0.365–0.879). CONCLUSION: The results suggested that this questionnaire can be a useful instrument for measuring self-reported beliefs, attitudes, knowledge, and behaviors related to EBP in the Portuguese PTs context.

scholarly journals WORK ABILITY AND PSYCHOLOGICAL WELL-BEING IN HOSPITAL STAFF

2016 ◽  
Vol 4 ◽  
pp. 750-755
Author(s):  
Gergana Sandeva ◽  
Kasimira Koleva
Keyword(s):  
Work Ability ◽  
Physical Therapists ◽  
Well Being ◽  
Hospital Staff ◽  
Work Ability Index ◽  
Length Of Service ◽  
Psychological Well Being ◽  
Ability Index ◽  
The Mean ◽  
Implementing Strategies

Healthcare is an economic sector characterized by unfavorable working conditions, such as psychosocial stress, shift work, and manual handling of loads. It is important to opportunely assess the work ability and psychological well-being of hospital staff to evaluate workers’ functional capacity and plan appropriate preventive measures.Objectives: To assess the work ability and psychological well-being in hospital staff and to determine factors that might influence them.Methods: Work Ability Index Questionnaire, Psychological Well-being Questionnaire, and statistical analyses.Results: The mean Work Ability Index (WAI) score was 40.8 ±4.8, which corresponded to suitable work ability. The lowest mean WAI score was registered for the physical therapists (38 ±3.8), and was significantly lower than the WAI score for nurses (41.6 ±4.8). The mean Psychological Well-being score for all subjects was 187.6 ±18.4. The youngest workers (200.8 ±14.7), and those with shortest length of service (196.7 ±18.4) had significantly higher mean Psychological Well-being scores than older (180.8 ±19.9) and more experienced workers (180.3 ±18.3). A positive correlation was found between WAI and Psychological Well-being scores (r = 0.37, p = 0.003).Conclusion: Hospital managers should consider implementing strategies focused on the work ability of hospital staff, as well as on their psychological well-being, to keep workers fit and healthy for longer.

Hip and Trunk Muscle Activity During the Star Excursion Balance Test in Healthy Adults

2019 ◽  
Vol 28 (7) ◽  
pp. 682-691 ◽  
Author(s):  
Kunal Bhanot ◽  
Navpreet Kaur ◽  
Lori Thein Brody ◽  
Jennifer Bridges ◽  
David C. Berry ◽  
...  
Keyword(s):  
Dynamic Balance ◽  
Gluteus Maximus ◽  
Gluteus Medius ◽  
Healthy Adults ◽  
Rectus Abdominis ◽  
Erector Spinae ◽  
Trunk Muscles ◽  
Electromyographic Activity ◽  
Balance Test ◽  
External Oblique

Context:Dynamic balance is a measure of core stability. Deficits in the dynamic balance have been related to injuries in the athletic populations. The Star Excursion Balance Test (SEBT) is suggested to measure and improve dynamic balance when used as a rehabilitative tool.Objective:To determine the electromyographic activity of the hip and the trunk muscles during the SEBT.Design:Descriptive.Setting:University campus.Participants:Twenty-two healthy adults (11 males and 11 females; 23.3 [3.8] y, 170.3 [7.6] cm, 67.8 [10.3] kg, and 15.1% [5.0%] body fat).Intervention:Surface electromyographic data were collected on 22 healthy adults of the erector spinae, external oblique, and rectus abdominis bilaterally, and gluteus medius and gluteus maximus muscle of the stance leg. A 2-way repeated measures analysis of variance was used to determine the interaction between the percentage maximal voluntary isometric contraction (%MVIC) and the reach directions. The %MVIC for each muscle was compared across the 8 reach directions using the Sidak post hoc test withαat .05.Main Outcome Measures:%MVIC.Results:Significant differences were observed for all the 8 muscles. Highest electromyographic activity was found for the tested muscles in the following reach directions—ipsilateral external oblique (44.5% [38.4%]): anterolateral; contralateral external oblique (52.3% [40.8%]): medial; ipsilateral rectus abdominis (8% [6.6%]): anterior; contralateral rectus abdominis (8% [5.3%]): anteromedial; ipsilateral erector spinae (46.4% [20.2%]): posterolateral; contralateral erector spinae (33.5% [11.3%]): posteromedial; gluteus maximus (27.4% [11.7%]): posterior; and gluteus medius (54.6% [26.1%]): medial direction.Conclusions:Trunk and hip muscle activation was direction dependent during the SEBT. This information can be used during rehabilitation of the hip and the trunk muscles.

Relationship between muscular and bony anatomy in native hips: a theoretical background for approach-specific implant positioning

2018 ◽  
Vol 29 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Doruk Akgün ◽  
Philipp von Roth ◽  
Tobias Winkler ◽  
Carsten Perka ◽  
Adam Trepczynski ◽  
...  
Keyword(s):  
Gluteus Maximus ◽  
Gluteus Medius ◽  
Theoretical Background ◽  
Surgical Approaches ◽  
Acetabular Anteversion ◽  
Joint Orientation ◽  
Combined Anteversion ◽  
Bony Anatomy ◽  
The Mean ◽  
Tensor Fasciae Latae

Introduction: The aim of this study was to analyse the relationship between bony joint orientation and the distribution of hip musculature. Methods: The bone anatomy of the hip (femoral antetorsion (AT), acetabular anteversion (AV), and combined anteversion (AV/AT)) and the muscle volume of the gluteal muscles and the tensor fasciae latae were analysed bilaterally using computed tomography data of 49 patients. Muscle force direction (MFD) was determined for each muscle. The total MFD of the hip musculature was calculated and then correlated with the bony anatomy. Results: The mean AV, AT, and AV/AT were 21.9° ± 5.9°, 7.22° ± 7.4°, and 29.2° ± 9°, respectively. We found the following mean muscle volumes: gluteus maximus: 780 ± 227 cm3, gluteus medius: 322 ± 82 cm3, gluteus minimus: 85 ± 20 cm3, and tensor fasciae latae: 68 ± 22 cm3. The mean MFD was 18.92° ± 1.29°. We found a uniform distribution of the musculature that was not correlated with the bone anatomy. Conclusion: This study highlights the variability in native acetabular and femoral anatomy and that bone hip anatomy does not correlate with the distribution of hip musculature. Although native acetabular anteversion matches the suggested targets for cup insertion, native combined anteversion is not related to current implant insertion targets. Understanding native muscular anatomy and the alterations that occur with different surgical approaches can serve as an explanatory model for THAs that has become unstable despite the components being implanted within the safe zone.

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