scholarly journals Chronic low back pain changes in trunk controls of gait

2021 ◽  
Author(s):  
Yuki Nishi ◽  
Hayato Shigetoh ◽  
Ren Fujii ◽  
Michihiro Osumi ◽  
Shu Morioka
Keyword(s):  
Motor Control ◽  
Repeated Measures ◽  
Daily Living ◽  
Sample Entropy ◽  
Healthy Controls ◽  
Low Back ◽  
Optimal Management ◽  
Repeated Measures Anova ◽  
The Impact ◽  
Anterior Posterior

Abstract This study investigated the impact of environment in trunk controls of gait among individuals with CLBP. CLBP patients (n=20) and healthy controls (HC) with no LBP history (n=20) attached an accelerometer to the low back and performed gait in laboratory and daily-living settings. We calculated stride-to-stride standard deviation (SD) and multiscale sample entropy (MSE) as “gait variability” in both the anterior-posterior (AP) and medial-lateral (ML) directions. In repeated-measures ANOVA, SD was affected by environment in the AP direction and by group and environment in the ML direction. MSE showed no effect in the AP direction and both effects in the ML direction. These change of trunk motor control by LBP have a relation to pain intensity, fear of movement and/or RMDQ in the daily-living but not laboratory settings. Evaluation of adaptation to environment in CLBP will enhance our understanding of changes in sensory-motor control and contribute to optimal management of such patients.

scholarly journals Changes in Trunk Variability and Stability of Gait in Patients with Chronic Low Back Pain: Impact of Laboratory Versus Daily-living Environments

2020 ◽  
Author(s):  
Yuki Nishi ◽  
Hayato Shigetoh ◽  
Ren Fujii ◽  
Michihiro Osumi ◽  
Shu Morioka
Keyword(s):  
Motor Control ◽  
Repeated Measures ◽  
Daily Living ◽  
Sample Entropy ◽  
Low Back ◽  
Optimal Management ◽  
Gait Stability ◽  
Repeated Measures Anova ◽  
The Impact ◽  
Anterior Posterior

Abstract This study investigated the impact of environment and pathology in trunk variability and stability of gait among individuals with CLBP. CLBP patients (n = 20) and healthy controls (HC) with no LBP history (n = 20) attached an accelerometer to the low back and performed gait in laboratory and daily-living settings. We calculated stride-to-stride standard deviation (SD) and multiscale sample entropy (MSE) as “gait variability” and maximum Lyapunov exponents (LyE) as “gait stability” in both the anterior-posterior (AP) and medial-lateral (ML) directions. In repeated-measures ANOVA, SD was affected by environment in the AP direction and by group and environment in the ML direction. MSE showed no effect in the AP direction and both effects in the ML direction. LyE showed both effects in the AP direction, but none in the ML direction. These change of trunk motor control by LBP have a relation to pain intensity, fear of movement and/or RMDQ in the daily-living but not laboratory settings. Evaluation of adaptation to environment in CLBP will enhance our understanding of changes in sensory-motor control and contribute to optimal management of such patients.

scholarly journals The Impact of Overnight Orthokeratology on Accommodative Response in Myopic Subjects

2020 ◽  
Vol 9 (11) ◽  
pp. 3687
Author(s):  
Ana F. Pereira-da-Mota ◽  
Jéssica Costa ◽  
Ana Amorim-de-Sousa ◽  
José M. González-Méijome ◽  
António Queirós
Keyword(s):  
Repeated Measures ◽  
Friedman Test ◽  
Repeated Measures Anova ◽  
Accommodative Response ◽  
Baseline Levels ◽  
Accommodative Lag ◽  
Objectively Measured ◽  
The Impact ◽  
Lens Wear ◽  
Over Time

This study aimed to evaluate the effects of two months of orthokeratology (OK) treatment in the accommodative response of young adult myopes. Twenty eyes (21.8 ± 1.8 years) were fitted with the Paragon CRT® 100 LENS to treat myopia between −1.00 and −2.00 D. Low- and high-contrast visual acuity (LCDVA and HCDVA), central objective refraction, light disturbance (LD), and objective accommodative response (using the Grand Seiko WAM-5500 open-field autorefractometer coupled with a Badal system) were measured at baseline (BL) before lens wear and after 1, 15, 30, and 60 nights of OK. Refractive error correction was achieved during the first fifty days of OK lens wear, with minimal changes afterwards. LD analysis showed a transient increase followed by a reduction to baseline levels over the first 30 nights of treatment. The accommodative response was lower than expected for all target vergences in all visits (BL: 0.61 D at 1.00 D to 0.96 D at 5.00 D; 60 N: 0.36 D at 1.00 D to 0.79 D at 5.00 D). On average, the accommodative lag decreases over time with OK lens wear. However, these differences were not statistically significant (p > 0.050, repeated-measures ANOVA and Friedman test). This shows that overnight OK treatment does not affect objectively measured the accommodative response of young, low myopic eyes after two months of treatment stabilization.

Twenty-Four-Hour Melatonin and Cortisol Plasma Levels in Relation to Timing of Cluster Headache

Cephalalgia ◽  
1995 ◽  
Vol 15 (3) ◽  
pp. 224-229 ◽  
Author(s):  
M Leone ◽  
V Lucini ◽  
D D'Amico ◽  
F Moschiano ◽  
C Maltempo ◽  
...  
Keyword(s):  
Cluster Headache ◽  
Repeated Measures ◽  
Group Analysis ◽  
Cortisol Secretion ◽  
Healthy Controls ◽  
Headache Attack ◽  
Repeated Measures Anova ◽  
Duration Of Illness ◽  
Dark Room ◽  
Age And Sex

The cyclic recurrence of cluster periods and the regular timing of headache occurrence in cluster headache (CH) induced us to study the circadian secretion of melatonin and cortisol in 12 patients with episodic CH, during a cluster period, and compare them with 7 age- and sex-matched healthy controls. Blood was sampled every 2, h for 24 h. All subjects were confined to a dark room from 22.00 to 08.00. Plasma melatonin levels were significantly reduced in CH patients (repeated measures ANOVA p < 0.03; mesor p < 0.02), and the cortisol mesor was significantly increased ( p < 0.03). Amplitudes and acrophases did not differ between the groups. Individual cosinor analysis showed that 4/12 (33.3%) CH patients had no significant melatonin rhythm, and that 5/11 (45.5%) had no cortisol rhythm. Group analysis of cosinor revealed significant rhythmicity of melatonin and cortisol secretion in both groups. In controls, the timing of melatonin and cortisol acrophase significantly correlated with each other, indicating that the biorhythm controllers for the secretion of these hormones were synchronized. Such correlation was not found in the CH patients; mesor, amplitude and acrophase of melatonin and cortisol did not correlate with duration of illness, duration of headache in course, or time since last headache attack.

scholarly journals Changing maladaptive beliefs among individuals with coronary heart disease using video information

2021 ◽  
Vol 6 (2) ◽  
pp. 215-228
Author(s):  
Henndy Ginting ◽  
Gérard W. B. Näring ◽  
Eni Sabrine Becker ◽  
Pintoko Tedjokusumo
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Repeated Measures ◽  
Anxiety And Depression ◽  
Control Group ◽  
Baseline Measure ◽  
Repeated Measures Anova ◽  
Video Information ◽  
Maladaptive Beliefs ◽  
The Impact

Many individuals with coronary heart disease (CHD) have maladaptive beliefs which might increase anxiety and depression. This study investigates the impact of using video information to convey facts and correct misconceptions about CHD in individuals. 150 individuals with CHD were assigned to either the control group or one of two experimental groups. The participants completed the York Cardiac Beliefs Questionnaire in the baseline measure immediately after first viewing the video (time 1), and after viewing the video for six times within two weeks (time 2). The Beck Anxiety Inventory and Beck Depression Inventory II were completed in the baseline and at time 2. Multiple repeated measures anova shows that after the intervention, participants’ maladaptive beliefs, anxiety and depression were reduced in both experimental groups. Yet, it did not happen in the control group. It indicates that the video information corrects maladaptive beliefs, and reduces anxiety and depression levels in individuals with CHD.  

scholarly journals Lumbopelvic motor control function between patients with chronic low back pain and healthy controls

Medicine ◽  
2020 ◽  
Vol 99 (15) ◽  
pp. e19621 ◽  
Author(s):  
Sung-hoon Jung ◽  
Ui-jae Hwang ◽  
Sun-hee Ahn ◽  
Hyun-a Kim ◽  
Jun-hee Kim ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Motor Control ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Control Function ◽  
Healthy Controls ◽  
Low Back

Comparative Assessment of Novel Sailing Trapeze Harness Designs

1989 ◽  
Vol 5 (3) ◽  
pp. 289-296 ◽  
Author(s):  
Susan J. Hall ◽  
Jane A. Kent ◽  
Vern R. Dickinson
Keyword(s):  
Low Back Pain ◽  
Repeated Measures ◽  
Comparative Assessment ◽  
Myoelectric Activity ◽  
Low Back ◽  
Repeated Measures Anova ◽  
Muscular Tension ◽  
Pilot Work ◽  
Integrated Emg ◽  
Over Time

Prolonged trapezing during sailing often results in low back pain among elite sailors. Modifications of the trapeze harness have been proposed as one approach to ameliorating this problem. To evaluate six harnesses incorporating novel features that had tested well during pilot work, myoelectric activity was monitored at C5, T6, and L5 levels of sacrospinalis and at an abdominal site while five elite sailors wore the harnesses. Integrated EMG (IEMG) values were stored by a microcomputer at periodic intervals during each 10-min trial, as each subject maintained a static horizontal trapezing position in the laboratory. Factorial repeated-measures ANOVA indicated no change in IEMG values over time, but significant (p<0.001) differences among harnesses at all four electrode sites. Features of trapeze harness design that appear to minimize muscular tension include heavy, rigid padding throughout the harness, full-length shoulder-to-buttocks support of the trunk, and adjustable leg strap supports as opposed to a crotch strap.

The Effects of Training the Humeral Rotators on Arm Elevation in the Scapular Plane

2001 ◽  
Vol 10 (2) ◽  
pp. 79-92 ◽  
Author(s):  
Chris J Durall ◽  
George J Davies ◽  
Thomas W Kernozek ◽  
Mark H Gibson ◽  
Dennis CW Fater ◽  
...  
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Peak Torque ◽  
Control Group ◽  
Neutral Position ◽  
Repeated Measures Anova ◽  
Angular Velocities ◽  
Arm Elevation ◽  
The Impact ◽  
Scapular Plane

Context:It has been hypothesized that the fibers of the infraspinatus and subscapularis superior to the glenohumeral axis of rotation contribute directly to arm elevation.Objective:To test this hypothesis by assessing the impact of 5 weeks of concentric isokinetic humeral-rotator training in a modified neutral position on scapular-plane arm-elevation peak torque.Design:Prospective, pretest/posttest with control group.Participants:24 female and 6 male noninjured college students (N = 30).Main Outcome Measures:Scapular-plane-elevation peak torque at 60, 180, and 300°/s.Results:Repeated-measures ANOVA indicated no difference in peak torque between groups at any of the angular velocities tested (P< .05)Conclusions:5 weeks of concentric isokinetic humeral-rotator training did not significantly increase scapular-plane-elevation peak torque.

The Value of Trust in Knowledge Sharing

2003 ◽  
pp. 116-130 ◽  
Author(s):  
Ran Wang ◽  
Bonnie Rubenstein-Montano
Keyword(s):  
Statistical Analysis ◽  
Knowledge Sharing ◽  
Repeated Measures ◽  
Completion Time ◽  
Task Complexity ◽  
Task Completion ◽  
Electronic Business ◽  
Repeated Measures Anova ◽  
The Impact

Knowledge sharing is currently at the forefront of research in the areas of organizational management and electronic business. Research has focused on aspects of knowledge sharing such as trust, quality of knowledge shared, and task complexity. This chapter builds on past inquiries of trust in knowledge sharing by examining how the benefits obtained from knowledge sharing change as trust levels change. A Repeated Measures ANOVA design is used to test the impact of trust on knowledge sharing. Task completion time, the dependent variable, measures the effect of knowledge sharing. Statistical analysis suggests that the benefit obtained from knowledge sharing increases as trust level increases.

A Study of the Impact of Team Functions in a First Year Design Course on Student Performance in Later Design Courses

2011 ◽  
Author(s):  
Ramsey F. Hamade ◽  
Nesreen Ghaddar
Keyword(s):  
Student Performance ◽  
Repeated Measures ◽  
First Year ◽  
Strong Impact ◽  
Repeated Measures Anova ◽  
Introductory Course ◽  
Engineering Studies ◽  
Course Grades ◽  
Capstone Project ◽  
The Impact

In this paper, the authors report on a longitudinal study of the impact of the function that a student assumes in this introductory course on his/her performance in design courses taken later in their engineering studies. The study tracks the performance of 204 students through the curriculum up to and including the final year’s capstone design project. Tracking is accomplished using repeated measures ANOVA (RMANOVA). Potential correlations are statistically examined between the introductory course grades and subgrades of the major deliverables (report and contest) and those from the later design courses after being segregated according to team function. The findings reveal strong impact of team functions on performance in design courses taken by the students up to three years later in the curriculum. Furthermore, it was also found that 64% of all teams formed for the capstone project contained two or more of the team original members formed in ME Tools.

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