The combined effect of industrial noise type, level and frequency characteristics on hand motor skills: A lab trial study

Work ◽  
2021 ◽  
Vol 68 (3) ◽  
pp. 711-719
Author(s):  
Parvin Nassiri ◽  
Mohammad Reza Monazzam ◽  
Somayeh Farhang Dehghan ◽  
Gholamheidar Teimori ◽  
Seyed Abolfazl Zakerian ◽  
...  
Keyword(s):  
Motor Skills ◽  
Frequency Characteristic ◽  
Noise Level ◽  
Manual Dexterity ◽  
Frequency Characteristics ◽  
Characteristic P ◽  
Industrial Noise ◽  
Noise Type ◽  
Hand Tool ◽  
Significant Difference

BACKGROUND: The study aimed to assess the interactive effects of industrial noise type, level and frequency characteristics on hand motor skills using the Minnesota Manual Dexterity Test and the Hand Tool Dexterity Test. METHODS: A total of ten nonsmoking male volunteers with normal hearing and vision were selected for this study. The study followed a full 3×3×2 factorial design. Independent variables were noise type (steady, intermittent and fluctuating), noise level (75, 85 and 95 dBA) and frequency characteristics (“roar” <2000 Hz and “hiss” >2000 Hz). RESULTS: For Minnesota Manual Dexterity Test, the lowest speed is related to steady hiss noise at 75 dBA and the highest speed is related to fluctuating roar noise at 95 dBA. The speed is being significantly affected by the frequency characteristic (P = 0.041) and noise type (P = 0.025). The effect of hiss noise on speed is greater than roar noise (P = 0.038). There is a significant difference (P = 0.035) between continuous noise and fluctuating noise. For the Hand Tool Dexterity Test, the lowest speed is related to fluctuating hiss noise at 95 dBA and the highest speed is related to steady roar noise at 95 dBA. The speed is being significantly affected by the frequency characteristic (P = 0.002), noise type (P = 0.0001) and noise level (P = 0.005). The effect of hiss noise on response variable to be greater than roar noise (P = 0.008). There is a significant difference (P = 0.0001) between steady noise and the two other types of noise, and also there is a significant difference between 75 dBA and 85 dBA level (P = 0.003). CONCLUSIONS: The results showed that on hand motor skills, speed response was influenced by three characteristics: the type of noise, frequency characteristics and noise level. Also, the effect of the hiss noise was more than the roar noise.

The interactive effect of industrial noise type, level and frequency characteristics on occupational skills

2014 ◽  
Vol 3 (2) ◽  
pp. 61-65 ◽  
Author(s):  
Parvin Nassiri ◽  
Mohammad Reza Monazzam ◽  
Mehdi Asghari ◽  
Seyed Abolfazl Zakerian ◽  
Somayeh Farhang Dehghan ◽  
...  
Keyword(s):  
Interactive Effect ◽  
Frequency Characteristics ◽  
Industrial Noise ◽  
Noise Type

scholarly journals Motor skills predict adaptive behavior in autistic children and adolescents

2021 ◽  
Author(s):  
Nicholas E Fears ◽  
Stephanie A Palmer ◽  
Haylie L Miller
Keyword(s):  
Children And Adolescents ◽  
Motor Skills ◽  
Adaptive Behavior ◽  
Manual Dexterity ◽  
Full Scale ◽  
Autistic Children ◽  
Verbal Comprehension ◽  
Significant Difference ◽  
Perceptual Reasoning

There is a well-documented difference between IQ and adaptive behavior scores in autism, with autistic children having lower adaptive behavior scores than would be predicted based on their IQ scores. Differences in motor skills may explain the variability in their adaptive behavior scores. The current study examined how motor skills might explain autistic individuals’ low adaptive behavior scores and which individual components of IQ (i.e., verbal comprehension and perceptual reasoning) and motor skills (i.e., manual dexterity, aiming and catching, and balance) may drive this effect. We examined the relationships between IQ, motor skills, calibrated severity, and adaptive behavior scores in 45 autistic children and adolescents. We found a significant difference in the full-scale IQ and the adaptive behavior scores indicating that our participants’ adaptive behavior scores were lower than would be expected given their full-scale IQ. We investigated whether motor skills predicted adaptive behavior in autistic children and adolescents and found that motor skills scores were related to adaptive behavior scores. To further investigate these relationships, we examined how individual components of IQ and motor skills predicted adaptive behavior scores in autistic children and adolescents. Our results indicated that manual dexterity scores were related to adaptive behavior scores. These findings clearly illustrate the need for further understanding of autistic individuals’ difficulties with adaptive behavior and the potential role of motor skill difficulties that may underlie these difficulties.

The Status of Noise Pollution in the Major Traffic Intersections of Khulna Metropolitan City in Bangladesh and its Possible Effect on Noise-Exposed People

2020 ◽  
Vol 1 (5) ◽  
Author(s):  
Aliza Sultana ◽  
Ashok Kumar Paul ◽  
Meher Un Nessa
Keyword(s):  
Noise Level ◽  
Noise Pollution ◽  
Pressure Level ◽  
Pollution Level ◽  
Metropolitan City ◽  
Mixed Area ◽  
Commercial Area ◽  
Significant Difference ◽  
Traffic Intersections ◽  
The Status

This study was conducted in the Khulna metropolitan city to determine the status of noise pollution at major traffic intersections and assess the possible effect of noise on regular noise afflicted people. For this research, five busiest roadways and traffic intersections; two mixed zone and three commercial zones were selected purposively and 'ST-8850 Sound Level Meter' was used to record the noise pressure level. Average noise pressure level and some noise parameters (Leq, L10, L50, L90, and Lnp) were measured at different shifts in each location both on working days and holidays. The result evidently specified that noise level in all major traffic circles of Khulna metropolitan city was much higher than the recommended threshold of acceptable noise level set by the Department of Environment (DOE) of Bangladesh. It was observed that the mixed area (Sonadanga, Gollamari) tends to have a higher average noise level than those of the commercial area (Shibbari, Notunrasta, Dakbangla). The noise pollution level (Lnp) in mixed areas varied from 92.77 dB (A) to 104.74 dB(A) on working days and 86.9 dB(A) to 105.5 dB(A) on holidays. On working days, the highest Leq was observed 92.65 ± 4.15 dB(A) in Sonadanga (mixed area), whereas the lowest was 85.13 ± 2.83 dB(A) in Dakbangla (commercial area). However, on holidays the highest level of Leq was found 90.41 ± 2.25 dB(A) in Sonadanga, while the lowest levels were 80.43 ± 3.20 dB(A) in Dakbangla. One-way ANOVA with LSD post-hoc test results illustrated that on working days there was a significant difference between the noise pollution levels (NPL) in different shifts of day time (F = 8.412, p < .05). The respondents of the study area addressed that they were the most affected by annoyance (70%), headache (62%), and hearing loss (46%) due to regular exposure to the traffic noise. Therefore, it is recommended to enhance awareness regarding the cause and effect of noise pollution among the noise producers and oppressed people. Subsequently, administrative measures have to take to attenuate noise pollution and indemnify the quality health of the citizens.

scholarly journals Comparison of motor outcomes between preschool children with univentricular and biventricular critical heart disease not diagnosed with cerebral palsy or acquired brain injury

2021 ◽  
pp. 1-8
Author(s):  
M. Florencia Ricci ◽  
Alastair Fung ◽  
Diane Moddemann ◽  
Victoria Micek ◽  
Gwen Y. Bond ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Heart Disease ◽  
Preschool Children ◽  
Brain Injury ◽  
Standard Deviation ◽  
Motor Skills ◽  
Odds Ratio ◽  
Motor Impairment ◽  
Acquired Brain Injury ◽  
Manual Dexterity

Abstract This comparison study of two groups within an inception cohort aimed to compare the frequency of motor impairment between preschool children with univentricular and biventricular critical congenital heart disease (CHD) not diagnosed with cerebral palsy/acquired brain injury, describe and compare their motor profiles and explore predictors of motor impairment in each group. Children with an intellectual quotient <70 or cerebral palsy/acquired brain injury were excluded. Motor skills were assessed with the Movement Assessment Battery for Children-2. Total scores <5th percentile indicated motor impairment. Statistical analysis included χ2 test and multiple logistic regression analysis. At a mean age of 55.4 (standard deviation 3.77) months, motor impairment was present in 11.8% of those with biventricular critical CHD, and 32.4% (p < 0.001) of those with univentricular critical CHD. The greatest difference between children with biventricular and univentricular CHD was seen in total test scores 8.73(2.9) versus 6.44(2.8) (p < 0.01) and in balance skills, 8.84 (2.8) versus 6.97 (2.5) (p = 0.001). Manual dexterity mean scores of children with univentricular CHD were significantly below the general population mean (>than one standard deviation). Independent odds ratio for motor impairment in children with biventricular critical CHD was presence of chromosomal abnormality, odds ratio 10.9 (CI 2.13–55.8) (p = 0.004); and in children with univentricular critical CHD odds ratio were: postoperative day 1–5 highest lactate (mmol/L), OR: 1.65 (C1.04–2.62) (p = 0.034), and dialysis requirement any time before the 4.5-year-old assessment, OR: 7.8 (CI 1.08–56.5) (p = 0.042). Early assessment of motor skills, particularly balance and manual dexterity, allows for intervention and supports that can address challenges during the school years.

scholarly journals Reliability and validity of a computer game-based tool of upper extremity assessment for object manipulation tasks in children with cerebral palsy

2021 ◽  
Vol 8 ◽  
pp. 205566832110140
Author(s):  
Anuprita Kanitkar ◽  
Sanjay T Parmar ◽  
Tony J Szturm ◽  
Gayle Restall ◽  
Gina Rempel ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Upper Extremity ◽  
Performance Measures ◽  
Assessment Tool ◽  
Computer Game ◽  
Object Manipulation ◽  
Manual Dexterity ◽  
Assessment Tools ◽  
Significant Difference ◽  
Children With Cerebral Palsy

Introduction A computer game-based upper extremity (CUE) assessment tool is developed to quantify manual dexterity of children with Cerebral Palsy (CP). The purpose of this study was to determine test-retest reliability of the CUE performance measures (success rate, movement onset time, movement error, and movement variation) and convergent validity with the Peabody Developmental Motor Scale version 2 (PDMS-2) and the Quality of Upper Extremity Skills Test (QUEST). Methods Thirty-five children with CP aged four to ten years were tested on two occasions two weeks apart. Results CUE performance measures of five chosen object manipulation tasks exhibited high to moderate intra-class correlation coefficient (ICC) values. There was no significant difference in the CUE performance measures between test periods. With few exceptions, there was no significant correlation between the CUE performance measures and the PDMS-2 or the QUEST test scores. Conclusions The high to moderate ICC values and lack of systematic errors indicate that the CUE assessment tool has the ability to repeatedly record reliable performance measures of different object manipulation tasks. The lack of a correlation between the CUE and the PDMS-2 or QUEST scores indicates that performance measures of these assessment tools represent distinct attributes of manual dexterity.

Efficacy of fine motor and balance exercises on fine motor skills in children with sensorineural hearing loss

2021 ◽  
pp. 1-10
Author(s):  
Elsayed S. Mehrem ◽  
Lamyaa A. Fergany ◽  
Said A. Mohamed ◽  
Hany M. Fares ◽  
Roshdy M. Kamel
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Motor Skills ◽  
Motor Performance ◽  
Fine Motor ◽  
Control Group ◽  
Fine Motor Skills ◽  
Significant Difference ◽  
Balance Exercises ◽  
Fine Motor Performance

Background: Childhood hearing impairment is a major disability associated with delayed motor development. The affected Fine motor performance in children with sensorineural hearing loss (SNHL) could be due to dynamic balance deficits and visual-motor incoordination. Objective: This study was designed to investigate the effects of fine motor exercises with or without balancing exercises on fine motor skills in children with SNHL. Methods: One hundred and eighty (180) children their age ranged from 8 to 18 years old diagnosed with SNHL were selected. They were divided into three groups, 60 children (control group) practiced only their ordinary activities of daily living, 60 children (fine motor exercises group) practiced fine motor exercises, and 60 children (fine motor and balance exercise) group practiced fine motor and balance exercises. The outcomes were assessed by the Bruininks Oseretsky Test of the motor proficiency second edition scale (BOT-2). Results: Generally, there was a statistically significant difference between control group and fine motor exercises group where (p <  0.05), besides, there was a statistically significant difference between control group and fine motor and balance exercises group where (p <  0.05). But, there was no statistically significant difference between fine motor exercises group and fine motor and balance exercises group where (p >  0.05). Conclusions: The Fine Motor performance of children with SNHL has been improved by Fine motor with or without balancing exercises according to (BOT-2).

Noise Levels: A database of industrial noise level measurements

Online Review ◽  
1988 ◽  
Vol 12 (4) ◽  
pp. 211-217 ◽  
Author(s):  
J. Robert ◽  
B.P. Pathak
Keyword(s):  
Noise Level ◽  
Noise Levels ◽  
Industrial Noise

scholarly journals Comparison of Acceptable Noise Level Generated Using Different Transducers and Response Modes

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Liang Xia ◽  
Jingchun He ◽  
Yuanyuan Sun ◽  
Yi Chen ◽  
Qiong Luo ◽  
...  
Keyword(s):  
Noise Level ◽  
Sound Field ◽  
Normal Hearing ◽  
Noise Levels ◽  
Presentation Modes ◽  
Significant Difference ◽  
Acceptable Noise Level ◽  
The Subject ◽  
Response Modes ◽  
Chinese Subjects

The acceptable noise level (ANL) was defined by subtracting the background noise level (BNL) from the most comfortable listening level (MCL) (ANL = MCL − BNL). This study compared the ANL obtained through different methods in 20 Chinese subjects with normal hearing. ANL was tested with Mandarin speech materials using a loudspeaker or earphones, with each subject tested by himself or by the audiologist. The presentation and response modes were as follows: (1) loudspeaker with self-adjusted noise levels using audiometer controls (LS method); (2) loudspeaker with the subject signaling the audiologist to adjust speech and noise levels (LA method); (3) earphones with self-adjusted noise levels using audiometer controls (ES method); and (4) earphones with the subject signaling the audiologist to adjust speech and noise levels (EA method). ANL was calculated from three measurements with each method. There was no significant difference in the ANL obtained through different presentation modes or response modes sound. The correlations between ANL, MCL, and BNL obtained from each two methods were significant. In conclusion, the ANL in normal-hearing Mandarin listeners may not be affected by presentation modes such as a loudspeaker or earphones nor is it affected by self-adjusted or audiologist-adjusted response modes. Earphone audiometry is as reliable as sound field audiometry and provides an easy and convenient way to measure ANL.

Sensorineural hearing loss imprint on fine motor skills: A pediatric and adolescent innovative study

2021 ◽  
pp. 1-8
Author(s):  
Roshdy M. Kamel ◽  
Samir M Mounir ◽  
Mohamed Ahmed Elbedewy ◽  
Mohamed M. Essa ◽  
Lamyaa A. Fergany ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Motor Skills ◽  
Sensorineural Hearing ◽  
Fine Motor ◽  
Normative Values ◽  
Control Group ◽  
P Value ◽  
Fine Motor Skills ◽  
Significant Difference

BACKGROUND: Sensorineural hearing loss is the most common type of permanent hearing impairment and results in balance and motor deficits in children which may affect and/or delay all developmental indicators. OBJECTIVE: The purpose of this study was to investigate the consequences of sensorineural hearing loss regarding fine motor skills in children and adolescents. METHODS: Two hundred children with an age range between 7 to 18 years and diagnosed with sensorineural hearing loss were selected from the Public School for the Deaf and Hard of Hearing in El-Minia district, Minia governorate, Egypt. The outcome was assessed by the use of Bruininks-Oseretsky Test of Motor Proficiency Second Edition scale (BOT-2) to measure fine motor skills. RESULTS: There was a statistically significant difference between the scores of Fine Motor Precision and Fine Motor Integration subtests of each study subgroup and its counterpart subgroup in the control group (normative values according to the scale) which has the same age and gender characteristics where p value equals (0.0008 or less, 0.0009 or less) respectively, with a large effect size less than –0.83. CONCLUSION: The findings of this study suggest that children with sensorineural hearing loss have a defect in their fine motor skills when compared to normal children of the same gender and age groups according to Bruininks-Oseretsky scale.

scholarly journals The Management and Outcome of Higher Order Multifetal Pregnancies: Obstetric, Neonatal and Follow-up Data

Twin Research ◽  
2001 ◽  
Vol 4 (1) ◽  
pp. 4-11
Author(s):  
Mark H. Yudin ◽  
Elizabeth V. Asztalos ◽  
Ann Jefferies ◽  
Jon F.R. Barrett
Keyword(s):  
Statistical Analysis ◽  
Motor Skills ◽  
Gestational Age ◽  
Neurodevelopmental Outcome ◽  
Higher Order ◽  
Neurodevelopmental Outcomes ◽  
Significant Difference ◽  
Before And After

AbstractThe objective of this study was to describe current obstetric, neonatal, and long-term neurodevelopmental outcomes of higher order multifetal gestations (≥ 3 fetuses) in the 1990s. We also intended to identify a target gestational age at which neonatal and neurodevelopmental morbidities are low. Records from all multifetal pregnancies (≥ 3 viable fetuses ≥ 20 weeks gestation) delivered at the two perinatal centers in Toronto, Ontario, Canada during the study period (January 1, 1990–December 31, 1996) were reviewed. Data were collected on obstetric, neonatal, and long-term neurodevelopmental outcomes. Follow up data were gathered regarding the presence of a severe deficit in four categories (vision, hearing, cognition, and motor skills). Statistical analysis was performed to determine a gestational age at which a significant decrease in deficit occurred. During the study period 165 multifetal pregnancies were delivered. This resulted in 511 fetuses, of which 496 were live births. Of these 496 infants, 453 survived to discharge. Follow up data were obtained on 332 (73.3 per cent) infants. Infant survival increased with gestational age, and was approximately 90 per cent or greater at 26 weeks or more. Of all infants followed, the proportion of those without deficit increased with increasing gestational age, such that the per cent without deficit was 96.9 at 31 weeks or greater. Of all infants followed, 301 (90.7 per cent) had no deficit. Statistical analysis revealed a significant difference in long-term neurodevelopmental outcome between infants born before and after 28 weeks gestation. The incidence of a major deficit was 44.1 per cent for those born earlier than and 5.4 per cent for those born later than this gestational age (p = 0.001). In our cohort, survival figures were high. Even in lower gestational groupings, survival was high, but not without serious concerns about severe morbidity. This information is useful when counseling parents of higher order multifetal pregnancies.

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