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Sharma KN, Quddus N, Hameed UA, Khan SA, Kumari A, Alghadir AH, Khan M. Mode-specific effects of concentric and eccentric isokinetic training of the hamstring muscle at slow angular velocity on the functional hamstrings-to-quadriceps ratio-a randomized trial. PeerJ 2022; 10:e13842. [PMID: 36196400 PMCID: PMC9527019 DOI: 10.7717/peerj.13842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/14/2022] [Indexed: 01/18/2023] Open
Abstract
Background Previous studies have examined the mode specificity of eccentric and concentric isokinetic training, but have reported conflicting results. Few studies have reported that eccentric and concentric isokinetic training are mode-specific, i.e., they will increase only the eccentric or concentric strength, respectively. Other studies have reported that mode specificity does not exist. Therefore, this study aimed to assess the mode-specific effects of eccentric and concentric isokinetic training of the hamstring muscle at slow angular velocity on eccentric peak torque of the hamstring (PTecc), concentric peak torque of the quadriceps (PTcon), acceleration time of the hamstring (AThams) and quadriceps (ATquad), deceleration time of the hamstring (DThams) and quadriceps (DTquad), time to peak torque of the hamstring (TPThams) and quadriceps (TPTquad), and functional Hamstring-to-Quadriceps ratio (PTecc/PTcon). Subjects A total of 30 participants were randomly divided into eccentric and concentric groups. Methods Two groups pre-test-post-test experimental design was used. In the eccentric and concentric groups, eccentric and concentric isokinetic training of hamstring muscle was performed respectively, at an angular velocity of 60°/s for 6 weeks duration. PTecc, PTcon, AThams, ATquad, DThams, DTquad, TPThams, TPTquad, and PTecc/PTcon were measured before and after the completion of training. Results In the eccentric group, a significant difference (p < 0.05) was observed in PTecc (increased by 21.55%), AThams (decreased by 42.33%), ATquad (decreased by 28.74%), and PTecc/PTcon (increased by 17.59%). No significant difference (p > 0.05) was observed in PTcon, TPThams, TPTquad, DThams, and DTquad. In the concentric group, a significant difference (p < 0.05) was observed in PTecc (increased by 12.95%), AThams (decreased by 27.38%) ATquad (decreased by 22.08%), DTquad (decreased by 26.86%), and PTecc/PTcon (increased by 8.35%). No significant difference (p > 0.05) was observed in PTquad, TPThams, TPTquad, and DThams. Between-group analysis revealed a significant difference (p < 0.05) only in TPTquad; otherwise, in the rest of the parameters, no significant difference (p > 0.05) was observed. Conclusions Both eccentric and concentric isokinetic training of the hamstring for 6 weeks increased PTecc, PTecc/PTcon, and decreased AThams and ATquad. The effects of eccentric and concentric isokinetic training of the hamstring on PTecc, PTecc/PTcon, AThams, and ATquad were not mode specific.
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Affiliation(s)
| | - Nishat Quddus
- Department of Rehabilitation Sciences, Jamia Hamdard University, New Delhi, Delhi, India
| | | | - Sohrab Ahmad Khan
- Department of Rehabilitation Sciences, Jamia Hamdard University, New Delhi, Delhi, India
| | - Anita Kumari
- Dr. Pradeep Sharma’s Pain Management Clinic, New Delhi, Delhi, India
| | - Ahmad H. Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Masood Khan
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Manzar MD, Hameed UA, Alqahtani M, Albougami A, Salahuddin M, Morgan P, Bahammam AS, Pandi-Perumal SR. Obstructive sleep apnea screening in young people: Psychometric validation of a shortened version of the STOP-BANG questionnaire using categorical data methods. Ann Thorac Med 2021; 15:215-222. [PMID: 33381236 PMCID: PMC7720742 DOI: 10.4103/atm.atm_389_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/06/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND: The STOP-BANG is an easily administrable questionnaire for the screening of obstructive sleep apnea in adults, which may be adapted for use by young people. Here, we assessed the psychometric properties of the STOP-BN, a shortened version of the STOP-BANG questionnaire, using categorical data methods. METHODS: Four hundred and three young people (age 20.71 ± 1.93 years) were selected by random sampling to participate in this cross-sectional study. Participants completed the STOP-BN, a tool for recording social and demographic characteristics, and the Epworth Sleepiness Scale (ESS), a measure of daytime sleepiness. The obtained data were analyzed using categorical data methods. RESULTS: A two-factor model was identified for the STOP-BN, using the Kaiser's criteria (eigenvalue >1) and the screen test. However, the parallel analysis based on minimum rank, and the cumulative variance criteria (>40%) identified an one-factor model. Factor loadings ranged from 0.364 to 0.745. The identified two-factor model showed acceptable fit as the reported goodness of fit index and weighted root mean square residual were in the ideal range, and the comparative fit index was close to the ideal range. Greatest lower bound to reliability for two factors of the STOP-BN was 0.67 and 0.67, indicating an acceptable internal consistency. A weak to a nonsignificant correlation between the ESS and the STOP-BN score was demonstrated, favoring STOP-BN's divergent validity. CONCLUSION: Categorical methods support the psychometric validity of the STOP-BN in the study population.
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Affiliation(s)
- Md Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952, Saudi Arabia
| | - Unaise Abdul Hameed
- Department of Physiotherapy, Fatima College of Health Sciences, Al Mafraq, Abu Dhabi City, United Arab Emirates.,Department of Physiotherapy, Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia
| | - Mazen Alqahtani
- Department of Physiotherapy, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952, Saudi Arabia
| | - Abdulrhman Albougami
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952, Saudi Arabia
| | - Mohammed Salahuddin
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus), Mizan-Aman, Ethiopia
| | - Prue Morgan
- Department of Physiotherapy, Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia
| | - Ahmed S Bahammam
- The University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia.,The Strategic Technologies Program of the National Plan for Sciences and Technology and Innovation, King Saud University, Saudi Arabia
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Salahuddin M, Manzar MD, Hassen HY, Unissa A, Abdul Hameed U, Spence DW, Pandi-Perumal SR. Prevalence and Predictors of Neurocognitive Impairment in Ethiopian Population Living with HIV. HIV AIDS (Auckl) 2020; 12:559-572. [PMID: 33116918 PMCID: PMC7568595 DOI: 10.2147/hiv.s260831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/22/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Modern antiretroviral therapy has extended the life expectancies of people living with HIV; however, the prevention and treatment of their associated neurocognitive decline have remained a challenge. Consequently, it is desirable to investigate the prevalence and predictors of neurocognitive impairment to help in targeted screening and disease prevention. MATERIALS AND METHODS Two hundred and forty-four people living with HIV were interviewed in a study using a cross-sectional design and the International HIV Dementia Scale (IHDS). Additionally, the sociodemographic, clinical, and psychosocial characteristics of the patients were recorded. Chi-square and binary logistic regression analysis were used to determine the level of significance among the independent risk factors and probable neurocognitive impairment. RESULTS The point prevalence of neurocognitive impairment was found to be 39.3%. Participants' characteristics of being older than 40 years (AOR= 2.81 (95% CI; 1.11-7.15)), having a history of recreational drug use (AOR= 13.67 (95% CI; 6.42-29.13)), and being non-compliant with prescribed medications (AOR= 2.99 (95% CI; 1.01-8.87)) were independent risk factors for neurocognitive impairment. CONCLUSION The identification of predictors, in the Ethiopian people living with HIV, may help in the targeted screening of vulnerable groups during cART follow-up visits. This may greatly help in strategizing and implementation of the prevention program, more so, because (i) HIV-associated neurocognitive impairment is an asymptomatic condition for considerable durations, and (ii) clinical trials on neurocognitive impairment therapies have been unsuccessful.
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Affiliation(s)
- Mohammed Salahuddin
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus), Mizan, Ethiopia
- Pharmacology Division, Department of BioMolecular Sciences, University of Mississippi, Oxford, Mississippi, USA
| | - Md Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Al Majmaah11952, Saudi Arabia
| | - Hamid Yimam Hassen
- Department of Public Health, College of Health Sciences, Mizan Tepi University, (Mizan Campus), Mizan, Ethiopia
- Department of Primary and Interdisciplinary Care, College of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Aleem Unissa
- Malla Reddy College of Pharmacy, Hyderabad, Telangana, India
| | - Unaise Abdul Hameed
- Department of Physiotherapy, Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia
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Manzar MD, Hameed UA, Salahuddin M, Khan MYA, Nureye D, Wakene W, Alamri M, Albougami A, PandiPerumal SR, Bahammam AS. Migraine screen questionnaire: further psychometric evidence from categorical data methods. Health Qual Life Outcomes 2020; 18:113. [PMID: 32345313 PMCID: PMC7189686 DOI: 10.1186/s12955-020-01361-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/13/2020] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Psychometric investigations of tools used in the screening of migraine including the migraine screen questionnaire (MS-Q), using an adequate statistical approach is needed. We assessed the psychometric properties of the migraine screen questionnaire (MS-Q) using categorical data methods. MATERIAL AND METHODS A total of 343 students at Mizan-Tepi University, Ethiopia, age range = 18-35 years were selected by a simple random sampling method to participate in a cross-sectional study. The respondents completed the MS-Q, a semi-structured socio-demographic questionnaire, and a visual analog scale for attention (VAS-A). RESULTS The cumulative variance rule (> 40%), the Kaiser's criteria (Eigenvalue> 1), the Scree test and, the parallel analysis (minimum rank) identified a 1-factor model for the MS-Q with the factor loadings in the range of 0.78 to 0.84. Fit indices favored a 1-factor model of the MS-Q as indicated by comparative fit index (0.993), weighted root mean square residual (0.048), root mean square error of approximation (0.067), the goodness of fit index (1.00), and non-normed fit index (0.987). The values of the Factor Determinacy Index (0.953), marginal reliability (0.909), H-latent (0.909), H-observed (0.727), explained common variance (0.906) and the mean item residual absolute loadings (0.225) further complimented finding of the 1-Factor model. McDonald's Omega (0.903) suggested adequate internal consistency. Discriminative validity was supported by significantly higher scores for the total and all the MS-Q items except one among those with complaints of attention. CONCLUSION The categorical methods support the psychometric validity of the MS-Q in the study population.
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Affiliation(s)
- Md. Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952 Saudi Arabia
| | - Unaise Abdul Hameed
- Department of Physiotherapy, Fatima College of Health Sciences, Al Mafraq, Abu Dhabi City, UAE
| | - Mohammed Salahuddin
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus), Mizan-Aman, Ethiopia
- Pharmacology Division, Department of BioMolecular Sciences, University of Mississippi, Oxford, USA
| | - Mohammad Yunus Ali Khan
- Department of Biomedical Sciences, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus), Mizan-Aman, Ethiopia
- Department of Anatomy, Arabian Gulf University, Manama, Bahrain
| | - Dejen Nureye
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus), Mizan-Aman, Ethiopia
| | - Wakuma Wakene
- Department of Clinical Pharmacy, Mettu University, Mettu, Ethiopia
| | - Majed Alamri
- Nursing Department, College of Applied Medical Sciences, University of Hafr Al Batin, Haf Al Batin, Saudi Arabia
| | - Abdulrhman Albougami
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952 Saudi Arabia
| | | | - Ahmed S. Bahammam
- The University Sleep Disorders Center, College of Medicine, King Saud University, Box 225503, Riyadh, 11324 Saudi Arabia
- National Plan for Science and Technology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Anwer S, Manzar MD, Alghadir AH, Salahuddin M, Abdul Hameed U. Psychometric Analysis of the Perceived Stress Scale Among Healthy University Students. Neuropsychiatr Dis Treat 2020; 16:2389-2396. [PMID: 33116538 PMCID: PMC7585521 DOI: 10.2147/ndt.s268582] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/31/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND There is a gradual increase in the prevalence of stress during professional courses. Previous studies reported a high incidence of stress among university students. The psychometric properties of the perceived stress scale-10 (PSS-10) have been established in different populations. The current study aimed to assess psychometric properties of the PSS-10 in Saudi university students. METHODS Healthy university students (n= 192) participated in this cross-sectional study. All the participants were explained about the aim and procedures of the study. Participants were requested to complete the English version of the PSS, the generalized anxiety disorder-7 (GAD-7), the sleep hygiene index (SHI), and demographic details. RESULTS The range of the PSS-10 total score was 0-35; 1% reported minimum score of 0, but none reported maximum score of 40. Therefore, there was no issue of ceiling or floor effect in the PSS-10 total score. Positive and significant correlations of the PSS total and the PSS Factor-1 (distress perception) with the GAD-7 total score, SHI item-8 and SHI item-13 score support its convergent validity. Negative or no correlation of the PSS Factor-2 score (coping perception) with the GAD-7 total score, SHI item-8 and SHI item-13 scores demonstrate its divergent validity. The internal homogeneity test indicated moderate to strong positive correlations (r=0.60-0.82) between the PSS Factors and the items loading on them. The internal consistency test showed a good agreement for the PSS Factor-1 and the PSS Factor-2 scores (Cronbach's alpha 0.78 and 0.71, respectively), suggesting an acceptable level of consistency. Factor analysis favored a 2-Factor model of the PSS in the Saudi students. CONCLUSION The current study supported the use of the PSS-10 to assess the perceived stress among Saudi university students.
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Affiliation(s)
- Shahnawaz Anwer
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Building and Real Estate, Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region
| | - Md Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Al Majmaah 11952, Saudi Arabia
| | - Ahmad H Alghadir
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Salahuddin
- Pharmacology Division, Department of BioMolecular Sciences, University of Mississippi, Oxford, MS, USA
| | - Unaise Abdul Hameed
- Department of Physiotherapy, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
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Hameed UA, Manzar D, Raza S, Shareef MY, Hussain ME. Resistance Training Leads to Clinically Meaningful Improvements in Control of Glycemia and Muscular Strength in Untrained Middle-aged Patients with type 2 Diabetes Mellitus. N Am J Med Sci 2012; 4:336-43. [PMID: 22912941 PMCID: PMC3421911 DOI: 10.4103/1947-2714.99507] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background: Previous studies in diverse ethnic groups have reported that progressive resistance training is effective for glycemic control. However, it is unknown whether this form of exercise therapy leads to clinically meaningful changes in metabolic, cardiovascular and anthropometric parameters in Asian Indians. Aim: The study was designed to investigate the efficacy of progressive resistance training on glycemic, musculoskeletal, anthropometric and cardiovascular variables in untrained middle-aged type 2 diabetic patients living in North India. Materials and Methods: Forty-eight untrained patients, 35 men and 13 women (mean ± SD age, 44.7 ± 4.2 years), with a diagnosis of type 2 diabetes were randomly divided into 2 groups: A group receiving progressive resistance training and a control group who provided participative involvement. The primary outcomes were glycemic control and muscle strength. Additionally, anthropometric and cardiovascular risk parameters were evaluated at baseline and after intervention or control program at 8 weeks. Results: Mixed ANOVA revealed a significant group-by-time interaction for the main outcomes of the study. Change in glycosylated hemoglobin was mean ± SD, 0.6 ± 0.5 in progressive resistance training group compared to no change in control group (P < .001). Progressive resistance training group showed a greater improvement in upper and lower body muscle strength (P < .001), waist circumference (P = .008), and high density lipoprotein cholesterol (P = .004). However, no significant group-by-time interaction was detected on body weight, total cholesterol, triglycerides, low density lipoprotein cholesterol, and systolic and diastolic blood pressure. Conclusions: A short-term progressive resistance training program leads to clinically meaningful improvements in glycemic control and muscle strength in untrained middle-aged type 2 diabetic patients of Asian Indian ethnicity.
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Affiliation(s)
- Unaise Abdul Hameed
- Centre for Physiotherapy and Rehabilitation Sciences, Central University, Jamia Nagar, New Delhi, India
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Manzar MD, Hameed UA, Hussain ME. Total sleep deprivation study in delayed sleep-phase syndrome. Indian J Med Sci 2011; 65:168-171. [PMID: 23250347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Delayed sleep-phase syndrome (DSPS) is characterized by delayed sleep onset against the desired clock time. It often presents with symptoms of sleep-onset insomnia or difficulty in awakening at the desired time. We report the finding of sleep studies after 24 h total sleep deprivation (TSD) in a 28-year-old DSPS male patient. He had characteristics of mild chronic DSPS, which may have been precipitated by his frequent night shift assignments. The TSD improved the patients sleep latency and efficiency but all other sleep variables showed marked differences.
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Affiliation(s)
- Md Dilshad Manzar
- Sleep Research Unit, Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, Maulana Mohammad Ali Jauhar Marg, Jamia Nagar, New Delhi, India
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