19 research outputs found
Reliability and Validity of the Monitored Functional Task Evaluation (MFTE) for Patients with Chronic Obstructive Pulmonary Disease (COPD)
This article describes the development of a new functional measure — the Monitored Functional Task Evaluation (MFTE) — a symptom-limited evaluation that is used to measure the functional performance of an individual with chronic obstructive pulmonary disease (COPD), and to document a client's physiological changes through repeated testing. Stage I of the study included developing the content validity of the instrument. Stage II consisted of establishing the performance profile, test-retest and inter-rater reliability using a convenience sample of 27 inpatients and outpatients who had COPD. In stage III, the criterion-related and discriminative validity of the instrument was verified in a retrospective sample of 124 inpatients and day patients who had COPD. Results indicated that there was high intra- and inter-rater reliability for the total score of MFTE. Significant correlation of the MFTE was found with parameters such as Moser's Activities of Daily Living (ADL) class, COPD disability class, 6-minute walking distance, work capacity in terms the ratio of the metabolic rate associated with a given activity to the resting metabolic rate, and the fatigue dimension of the Chronic Respiratory Disease Questionnaire. In addition, prediction of group membership to Moser's ADL class revealed that 52.4% of the original grouped cases could be correctly classified by the MFTE alone. In conclusion, the MFTE is a useful measure to evaluate functional performance as well as document physiological changes in patients with moderate-to-severe COPD from both conceptual and empirical perspectives
A search for neutral Higgs bosons in the MSSM and models with two scalar field doublets
A search is described for the neutral Higgs bosons h^0 and A^0 predicted by models with two scalar field doublets and, in particular, the Minimal Supersymmetric Standard Model (MSSM). The search in the Z^0 h^0 and h^0 A^0 production channels is based on data corresponding to an integrated luminosity of 25 pb^{-1} from e^+e^- collisions at centre-of-mass energies between 130 and 172GeV collected with the OPAL detector at LEP. The observation of a number of candidates consistent with Standard Model background expectations is used in combination with earlier results from data collected at the Z^0 resonance to set limits on m_h and m_A in general models with two scalar field doublets and in the MSSM. For example, in the MSSM, for tan(beta) > 1, minimal and maximal scalar top quark mixing and soft SUSY-breaking masses of 1 TeV, the 95% confidence level limits m_h > 59.0 GeV and m_A > 59.5 GeV are obtained. For the first time, the MSSM parameter space is explored in a detailed scan.A search is described for the neutral Higgs bosons h^0 and A^0 predicted by models with two scalar field doublets and, in particular, the Minimal Supersymmetric Standard Model (MSSM). The search in the Z^0 h^0 and h^0 A^0 production channels is based on data corresponding to an integrated luminosity of 25 pb^{-1} from e^+e^- collisions at centre-of-mass energies between 130 and 172 GeV collected with the OPAL detector at LEP. The observation of a number of candidates consistent with Standard Model background expectations is used in combination with earlier results from data collected at the Z^0 resonance to set limits on m_h and m_A in general models with two scalar field doublets and in the MSSM. For example, in the MSSM, for tan(beta) > 1, minimal and maximal scalar top quark mixing and soft SUSY-breaking masses of 1 TeV, the 95% confidence level limits m_h > 59.0 GeV and m_A > 59.5 GeV are obtained. For the first time, the MSSM parameter space is explored in a detailed scan
Spin alignment of leading mesons in hadronic decays
Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL experiment at LEP. A preference for occupation of the helicity zero state is observed at all scaled momentum x_p values above 0.3, with the matrix element rho_00 rising to 0.66 +/- 0.11 for x_p > 0.7. The values of the real part of the off-diagonal element rho_1-1 are negative at large x_p, with a weighted average value of -0.09 +/- 0.03 for x_p > 0.3, in agreement with new theoretical predictions based on Standard Model parameters and coherent fragmentation of the qq(bar) system from the Z^0 decay. All other helicity density matrix elements measured are consistent with zero over the entire x_p range. The K^*0 fragmentation function has also been measured and the total rate determined to be 0.74 +/- 0.02 +/- 0.02 K*(892)^0 mesons per hadronic Z^0 decay.Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL experiment at LEP. A preference for occupation of the helicity zero state is observed at all scaled momentum x_p values above 0.3, with the matrix element rho_00 rising to 0.66 +/- 0.11 for x_p > 0.7. The values of the real part of the off-diagonal element rho_1-1 are negative at large x_p, with a weighted average value of -0.09 +/- 0.03 for x_p > 0.3, in agreement with new theoretical predictions based on Standard Model parameters and coherent fragmentation of the qq(bar) system from the Z^0 decay. All other helicity density matrix elements measured are consistent with zero over the entire x_p range. The K^*0 fragmentation function has also been measured and the total rate determined to be 0.74 +/- 0.02 +/- 0.02 K*(892)^0 mesons per hadronic Z^0 decay.Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL experiment at LEP. A preference for occupation of the helicity zero state is observed at all scaled momentum x_p values above 0.3, with the matrix element rho_00 rising to 0.66 +/- 0.11 for x_p > 0.7. The values of the real part of the off-diagonal element rho_1-1 are negative at large x_p, with a weighted average value of -0.09 +/- 0.03 for x_p > 0.3, in agreement with new theoretical predictions based on Standard Model parameters and coherent fragmentation of the qq(bar) system from the Z^0 decay. All other helicity density matrix elements measured are consistent with zero over the entire x_p range. The K^*0 fragmentation function has also been measured and the total rate determined to be 0.74 +/- 0.02 +/- 0.02 K*(892)^0 mesons per hadronic Z^0 decay.Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL experiment at LEP. A preference for occupation of the helicity zero state is observed at all scaled momentum x_p values above 0.3, with the matrix element rho_00 rising to 0.66 +/- 0.11 for x_p > 0.7. The values of the real part of the off-diagonal element rho_1-1 are negative at large x_p, with a weighted average value of -0.09 +/- 0.03 for x_p > 0.3, in agreement with new theoretical predictions based on Standard Model parameters and coherent fragmentation of the qq(bar) system from the Z^0 decay. All other helicity density matrix elements measured are consistent with zero over the entire x_p range. The K^*0 fragmentation function has also been measured and the total rate determined to be 0.74 +/- 0.02 +/- 0.02 K*(892)^0 mesons per hadronic Z^0 decay.Helicity density matrix elements for inclusive K ∗ (892) 0 mesons from hadronic Z 0 decays have been measured over the full range of K ∗ 0 momentum using data taken with the OPAL experiment at LEP. A preference for occupation of the helicity zero state is observed at all scaled momentum x p values above 0.3, with the matrix element ϱ 00 rising to 0.66 ± 0.11 for x p > 0.7. The values of the real part of the off-diagonal element ϱ 1 - 1 are negative at large x p , with a weighted average value of −0.09 ± 0.03 for x p > 0.3, in agreement with new theoretical predictions based on Standard Model parameters and coherent fragmentation of the q q system from the Z 0 decay. All other helicity density matrix elements measured are consistent with zero over the entire x p range. The K ∗ 0 fragmentation function has also been measured and the total rate determined to be 0.74 ± 0.02 ± 0.02 K ∗ (892) 0 mesons per hadronic Z 0 decay
Multisensory stimulation to promote upper extremity motor recovery in stroke: a pilot study
Introduction Occupational therapists have been using various preparatory methods as part of the treatment sessions to prepare clients for occupational performance and participation in occupation. Studies have shown sensory stimulation both activates brain areas inducing cortical reorganization and modulates motor cortical excitability for the stimulated afferents, hence re-establishing the disrupted sensorimotor loop due to stroke. This pilot investigates the potential effects of using multisensory stimulation as a preparatory method prior to conventional training (CT) on upper-extremity motor recovery and self-care function in stroke patients. Method This was a quasi-randomized controlled pilot. Twelve participants (age in years = 67.17 + /-11.29) with upper extremity motor deficits were randomly allocated to multisensory therapy (n = 6) or conventional (n = 6) groups for 12-week training. Assessments were conducted at baseline and post-intervention using Fugl-Meyer Assessment of Motor Recovery after Stroke (FMA), Manual Muscle Testing (MMT), Functional Test for the Hemiplegic Upper Extremity (Hong Kong version FTHUE-HK) and Modified Barthel Index (MBI). Results Significant between-group differences were shown in FMA (p = 0.003), FTHUE-HK (p = 0.028) and MMT (p = 0.034). Conclusion Multisensory stimulation could be used as a preparatory method prior to CT in improving upper extremity motor recovery in stroke rehabilitation. Further well-designed larger scale studies are needed to validate the potential benefits of this application
Systematic Review: Effectiveness of Mirror Therapy for Lower Extremity Post-Stroke
Background/Objective: This study reviewed the current evidence on the effectiveness of mirror therapy (MT) on improving the motor functions of the hemiplegic lower extremity (LE) in adult clients with stroke.
Methods: A systematic review was conducted of studies published in English in the 10-year period 2005–2015, retrieved from seven electronic databases: Medline, PubMed, CINAHL, PsychInfo, Science Direct, Cochrane and TBI Rehabilitation. Only articles that focused on the effects of MT on hemiparesis affecting LE function and performance were included. The methodological quality of the studies was appraised using the Physiotherapy Evidence Database Scale (PEDro).
Results: The literature search yielded 14 studies that satisfied the selection criteria, of which five (4 randomised controlled trials and 1 case study) were reviewed after screening. Despite the heterogeneity of the studies, they showed MT to be effective in improving some of the motor functions of the LE at different stages of stroke. However, they offered little evidence on MT's long-term effects and for when is the optimal stage to start MT after stroke onset.
Conclusion: Further research is needed to determine the best treatment regimen and optimal time to initiate MT intervention in terms of the phases of stroke. No firm conclusions can be drawn on the effectiveness of MT on the hemiplegic LE until more evidence is available
Effectiveness of Action Observation and Motor Imagery on Relearning Upper Extremity Function After Stroke: A Systematic Review and Meta-analysis
The effectiveness of action observation (AO) and motor imagery (MI) in high-quality studies with less risk of bias is rarely reported together. This systematic review evaluates the effectiveness of AO and MI on improving upper extremity function among people after stroke by combining evidence of studies with high methodological quality. Randomised controlled trials, with a score of 6 or above in the PEDro Scale, that examined the effects of AO or MI for people with stroke were selected. A narrative analysis and meta-analysis were conducted using the PRISMA guidelines. Ten randomised controlled trials from 11 articles met the inclusion criteria. The results of meta-analysis showed that AO had a small to moderate statistically significant effect on improving upper extremity motor function (standardized mean difference, SMD = 0.34; confidence interval, CI = 0.08, 0.59; P = 0.35; I2 = 0.00%) and no significant effect on MI (SMD = 0.08; CI = -0.26, 0.42; P = 0.65; I2 = 0.00%) when compared with the control intervention. Evidence was found in support of AO and it is recommended for people with acute or sub-acute stroke