Write your message

Search published articles


Showing 4 results for Yazdi
Assessing the appropriateness of educational furniture with body size of students in Yazd
Mohammad Ghofrani, Habib Noori, Ahmad Roshan Bakhsh Yazdi,
Volume 2, Issue 3 (Journal of Ergonomics 2014)
Abstract
 

Introduction: Due to the deleterious effects of mismatch between body dimensions of students and educational furniture, this study aimed to assess the size of students’ body in Yazd.

Material and Methods: The study population included all high school students in Yazd city. Popliteal height, buttock-popliteal length, elbow rest height, hips width, thighs thickness and scapular elevation were measured in 307 students. Besides, in furniture used in the schools studied, two chairs and two benches that had a greater frequency of analysis were chosen.

Results: The results of the statistical comparisons showed that type 1 furniture, seat width was acceptable for 96.74% and thigh freedom was 100% fit. The type 2 furniture depth for most students was appropriate, and seat width was acceptable for 96.42% of students. Thigh freedom was fit for 100% with a good rating. In type 3 furniture, there was not any parameter with good fit and in type 4 furniture, wide seat width and thigh freedom was desirable.

Conclusions: In general, the furniture conformity with students’ anthropometry was not desirable.


Work Limitation and its Related Factors in Patients with Acute and Chronic Low Back Pain Referred to the Rheumatology Clinic of Qazvin Bu-Ali Hospital
Zohreh Yazdi, Mahnaz Abbasi, Freshteh Shamsi,
Volume 4, Issue 1 (Journal of Ergonomics 2016)
Abstract

Introduction: Low back pain is the most common cause of chronic pain syndrome which leads to activity limitation in people younger than 45 years old.

Objectives: This study aimed to evaluate the relationship between severity of low back pain and work limitation in patients with acute and chronic low back pain.

Methods: Ninety patients with acute and chronic low back pain who attended the rheumatology Clinic of Booali Hospital were evaluated in this cross-sectional study. A questionnaire containing demographic information and one about the onset and cause of low back pain were asked from patients. Work Limitation Questionnaire was asked from patients. Severity of pain was measured by Visual Analogue Scale. All the data were analysed using SPSS software.

Results: The results showed that the most common cause of low back pain was discopathy with 33 patients (36.7%). There was no significant difference between males and females in terms of work limitation (P = 0.66). Patients with discopathy showed the most severe work limitations (72%). Also, there was a significant relationship between severity of work limitation and patients' age. Older patients had more severity of work limitations (P < 0.001, r = 0.42). There was a significant correlation between work limitation and severity of pain. Patients with increasing pain had more severity of work limitations (P < 0.001).

Conclusions: Our results showed that with increasing age and pain work limitations will increase due to low back pain.


The Effect of Non-Slippery Flooring on Postural Stability and Gait Parameters in Severe Osteoporosis Elderly
Ramin Rafeie, Mohammad Eftekhari Yazdi, Koorosh Nakhaee, Siamak Khorramymehr,
Volume 10, Issue 3 (Iranian Journal of Ergonomics 2022)
Abstract
Objectives: Investigating the effective factors in controlling and increasing stability due to weakening of the balance parts of the body in the elderly with osteoporosis, in order to prevent falling is of particular importance, so in this study, the effect of anti-slip flooring in the stimulation of the somatosensory part of the sole of the foot to improve postural stability and gait balance has been evaluated in the elderly with osteoporosis.
Methods: 22 elderlies participated (11 elderly women with severe osteoporosis,11 healthy elderly women) in this study in two static and dynamic condition on three different surfaces including sponge non-slippery flooring (FL), PVC patterned non-slippery flooring (SF) and control surface (CO). In the static part, each participant was standing on the force plate for 30 seconds with eyes open and eyes closed. The values of the length, sway and average velocity of the anterior-posterior and internal-external center of pressure of the foot were measured. In the dynamic part, each participant walked at a selected speed on different surfaces and the values of the normalized step and stride length, step width, step and stride time, and average step and stride velocity were measured.
Results: PVC non-slippery flooring (SF) and control surface (CO) reduced all postural stability and gait variables (P < 0.05) in osteoporosis and healthy elderly than soft Sponge Surface (SF). Moreover, all postural stability variable and spatial and temporal gait parameters were significantly more in the osteoporosis elderly than in healthy elderlies (P < 0.05). Moreover, anterior-posterior mean velocity in open-eyed state significantly reduced in both elderly groups than close-eyed state (P < 0.05).
Conclusion: Stiff and patterned surfaces are more effective than soft spongy surfaces in stimulating the somatosensory part of the foot sole to improve stability in both osteoporotic and healthy elderly groups. The results of this study may be helpful to understand the characteristics of the elderly while walking and standing on non-slippery flooring in different environments and the ergonomic design of the environment in order to reduce slips and falls and as a result possible fracture in the elderly with severe osteoporosis. In addition, observation of instability between the elderly with osteoporosis and healthy suggests the need for further investigation and the use of auxiliary exercises to correct and improve stability.

Investigating the Cognitive Abilities of Nurses after Working in Infectious Disease Departments in Hospitals
Niloofar Chinisaz, Marzieh Sadeghian, Amir Akbari, Maryam Yazdi,
Volume 12, Issue 2 (Iranian Journal of Ergonomics 2024)
Abstract
Objectives: High workload, shift work, risk of disease, and mental workload caused by the possibility of transmission can create challenging and stressful situations for nurses. The present study aimed to assess the cognitive performance of nurses before and after working in COVID-19 wards to understand the potential effects.
Methods: A total of 250 nurses from hospitals in Ahvaz in 2020 who had more than two years of work experience and had not worked in departments in direct contact with COVID-19 patients were included in the study. The participants were asked to complete the cognitive ability assessment questionnaire before starting to work in COVID-19 departments and after two months of their work. The results before and after working in COVID-19 wards were compared using paired t-tests.
Results: The cognitive ability score after working in COVID-19 wards decreased significantly (mean difference±standard deviation: 23.92±12.00; P<0.001). The scores of all cognitive ability subscales except social cognition (mean difference±standard deviation: 3.03±2.43; P< 0.001) also decreased after working in COVID-19 wards.
Conclusion: Working in COVID-19 wards leads to a marked decrease in cognitive abilities of nurses. Given that the weakening of nurses' cognitive ability has a significant role in the quality of patient care measures, it is necessary to prioritize measures to improve their working conditions in order to improve cognitive abilities.

Page 1 from 1     

© 2025 CC BY-NC 4.0 | Iranian Journal of Ergonomics

Designed & Developed by : Yektaweb |