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Wyświetlanie 1-7 z 7
Tytuł:
Bodybuilding links to Upper Crossed Syndrome
Autorzy:
Daneshmandi, Hasan
Harati, Javad
Fahim Poor, Saeid
Powiązania:
https://bibliotekanauki.pl/articles/1031755.pdf
Data publikacji:
2017
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
abnormality
bodybuilders
forward head posture
upper crossed syndrome
Opis:
Introduction: Upper cross syndrome is becoming more prevalent in today’s population. The syndrome is described as a postural disorder presenting with over active pectoralis musculature and upper trapezius musculature. Also there is inhibition of lower and middle trapezius musculature, which results in winging of scapula, elevated and abducted scapula. This scapular dyskinesia, per se, resulted in rounding of shoulders. The syndrome is often associated with bad posture in routine life or occupation of a person. Little is known about the relationship between sport participation and postural body changes of bodybuilding training. Our aim is to investigate whether bodybuilding training in trained-individuals is associated with the postural abnormalities in the upper body. Methods: 60 male, trained bodybuilders (age= 24.62±3.67 years, body weight= 82.40±9 kg, height= 175±0.067 cm, body mass index (BMI( = 26.77±2.37 Kg/m2, body fat percentage = 21.58±3.21) and 30 un-trained (age= 24.67±2.24 years, body weight= 73.33±9.42 kg, height= 175±0.06 cm, body mass index (BMI) = 23.93±3.16 Kg/m2, body fat percentage = 18.17±3.76) volunteered and were thus included in the study. Postural photographs were taken in the sagittal and frontal planes, and were analyzed by using AutoCAD software. The Flexi curve ruler was used for the assessment of thoracic kyphosis and lumbar lordosis. Results: Using an independent sample t-test, significant differences were observed in the values of forward head posture between trained and untrained groups (p=0.001) and Mann-Whitney U test showed there was significant differences between the values of uneven shoulders (p=0.001), rounded shoulder (p=0.009) and kyphosis (p=0.013), but there was no significant difference between lordosis values in two groups. Conclusion: It can be concluded that there is a high incidence of upper body abnormalities among bodybuilders and this should be taken as a minatory situation on behalf of bodybuilding trainers. Therefore, strength coaches should design an appropriate training program to prevent their trainees from such abnormalities.
Źródło:
Physical Activity Review; 2017, 5; 124-131
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of the position of the head on the functioning of the human body: a systematic review
Autorzy:
Szczygieł, Elżbieta
Fudacz, Natalia
Golec, Joanna
Golec, Edward
Powiązania:
https://bibliotekanauki.pl/articles/2116542.pdf
Data publikacji:
2020-09-17
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
balance disorders
forward head posture
head
respiratory system
proprioception
neck
Opis:
The head is an important element of the biokinetic chain. Under physiological conditions, it should extend along the midline of the body. Due to its location and the fact that it constitutes approx. 6% of the total body weight, many authors believe it has a significant impact on its functioning. The aim of this study was to conduct a systematic literature search and to synthesize the evidence of the impact of the head posture on the functioning of the human body. A systematic review was conducted within 3 databases: PubMed, Medline OVID, and EBSCO, using the following terms: “forward head,” “posture,” “position,” and “neck.” For the analysis, scientific articles published after 2013 were selected. A total of 16 studies matched the inclusion criteria of this systematic review. Their results have proven that the position of the head has a significant effect on the human body. Research findings show that abnormal head position changes affect muscle activity, proprioception, the pattern of breathing and neck pain. This is the first systematic review of the relationship between the head posture, and the functioning of the human body. The results of this study seem to be promising if used in therapeutic practice.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2020, 33, 5; 559-568
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Head and neck posture in sauropod dinosaurs inferred from extant animals
Autorzy:
Taylor, M P
Wedel, M.J.
Naish, D.
Powiązania:
https://bibliotekanauki.pl/articles/22737.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
dinosaur
sauropod dinosaur
extant animal
head posture
neck posture
Dinosauria
Sauropoda
Opis:
The neck posture of sauropod dinosaurs has long been controversial. Recent reconstructions position the cervical vertebrae and skull in an “osteological neutral pose” (ONP), the best fit arrived at by articulating the vertebrae with the zygapophyses in maximum contact. This approach in isolation suggests that most or all sauropods held their necks horizontally. However, a substantial literature on extant amniotes (mammals, turtles, squamates, crocodilians and birds) shows that living animals do not habitually maintain their necks in ONP. Instead, the neck is maximally extended and the head is maximally flexed, so that the mid−cervical region is near vertical. Unless sauropods behaved differently from all extant amniote groups, they must have habitually held their necks extended and their heads flexed. The life orientation of the heads of sauropods has been inferred from the inclination of the semi−circular canals. However, extant animals show wide variation in inclination of the “horizontal” semi−circular canal: the orientation of this structure is not tightly constrained and can give only a general idea of the life posture of extinct animals’ heads.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 2; 213-220
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of airplane passenger seat armrest height on human neck comfort when using a smartphone
Autorzy:
Tang, Xing
Yu, Suihuai
Chu, Jianjie
Zhang, Luwei
Fan, Hao
Hu, Yukun
Jiang, Gang
Powiązania:
https://bibliotekanauki.pl/articles/2084809.pdf
Data publikacji:
2022-04-11
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
smartphone
airplane
armrest height
head posture
neck comfort
flexion angle
Opis:
ObjectivesThe objective of this study was to explore the relationship between seat armrest height and human neck comfort when using a smartphone while sitting on a passenger seat during the flight.Material and MethodsThe authors used a wireless angle-measuring instrument and subjective comfort scale to evaluate the changes of head flexion angle and neck comfort level of 24 young smartphone users in an aircraft simulated cabin.ResultsThe study results indicated that using a smartphone while sitting on a passenger seat during the flight would pose a larger discomfort to the neck, and the discomfort would be higher for gaming than reading tasks. Seat armrest height is related to the comfort level of the neck when using a smartphone, increasing the height of the armrest can effectively alleviate discomfort in this state.ConclusionsConsidering the prevalence of passengers using smartphones in aircraft, a seat armrest that can be properly adjusted in height, which can effectively reduce the risk of passenger head flexion angle and neck discomfort.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2022, 35, 2; 199-208
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the impact of certain exercises on the spatial head posture
Autorzy:
Szczygieł, Elżbieta
Sieradzki, Bartosz
Masłoń, Agata
Golec, Joanna
Czechowska, Dorota
Węglarz, Karolina
Szczygieł, Radosław
Golec, Edward
Powiązania:
https://bibliotekanauki.pl/articles/2161991.pdf
Data publikacji:
2019-02-27
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
forward head posture
head
exercises
craniovertebral angle
job workers
prophylactic of neck pains
Opis:
Objectives The head constitutes 6% of the total body weight, which is linked to the cervical spine and all other joints through the kinematic chain by various muscles. The forward head posture is one of the most common postural disorders and seems to be especially dangerous. The goal of the work was to assess the impact of 4 weeks of training neck and nape muscles on the head posture. Material and Methods The subjects were 20 participants, who performed neck exercises for 20 days. The head posture in a sagittal and frontal plane was assessed photogrammetrically twice: before and after the exercises. The following have been used for the assessment: craniovertebral (CV) angle, head tilt angle (HT), and frontal head tilt angle (FHT). Results After a 20-day program of neck and nape exercises the values of specific angles were compared. The results indicated significant changes in the head posture. In the sagittal plane: the average value of the CV angle before the training was 47.17°, and 50.82° after the training; the average value of the HT angle before the exercises was at 20.99°, and 24.31° after. In the frontal plane the average value of the FHT angle before the exercises was at 2.71°, and after 20 days of training the average value of this angle decreased to 2°. Conclusions The results demonstrate that a short, home-based targeted exercise program can improve head posture. Int J Occup Med Environ Health. 2019;32(1):43–51
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2019, 32, 1; 43-51
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The study of correlation between forward head posture and neck pain in Iranian office workers
Autorzy:
Nejati, Parisa
Lotfian, Sara
Moezy, Azar
Nejati, Mina
Powiązania:
https://bibliotekanauki.pl/articles/2177383.pdf
Data publikacji:
2015-03-12
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
neck pain
craniovertebral angle
forward head posture
high thoracic angle
office employee
Opis:
Introduction Factors such as prolonged sitting at work or improper posture of head during work may have a great role in neck pain occurrence among office employees, particularly among those who work with computers. Although some studies claim a significant difference in head posture between patients and pain-free participants, in literature the forward head posture (FHP) has not always been associated with neck pain. Since head, cervical and thoracic postures and their relation with neck pain has not been studied in Iranian office employees, the purpose of this study was to investigate the relationship between some work-related and individual factors, such as poor posture, with neck pain in the office employees. Material and methods It was a cross-sectional correlation study carried out to explore the relationship between neck pain and sagittal postures of cervical and thoracic spine among office employees in forward looking position and also in a working position. Forty-six subjects without neck pain and 55 with neck pain were examined using a photographic method. Thoracic and cervical postures were measured using the high thoracic (HT) and craniovertebral (CV) angles, respectively. Results High thoracic and CV angles were positively correlated with the presence of neck pain only in working position (p < 0.05). In forward looking position, there was no statistically significant difference between the 2 groups (p > 0.05). Conclusions Our findings have revealed that office employees had a defective posture while working and that the improper posture was more severe in the office employees who suffered from the neck pain.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 2; 295-303
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomechanical influences on head posture and the respiratory movements of the chest
Autorzy:
Szczygieł, E.
Węglarz, K.
Piotrowski, K.
Mazur, T.
Miętel, S.
Golec, J.
Powiązania:
https://bibliotekanauki.pl/articles/306621.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
klatka piersiowa
głowa
postawa
chest
head
posture
Opis:
Purpose. The head represents 6% of total body weight, therefore it can significantly affect the biomechanics of human posture control, movements and activities. When set out of vertical body axis, head position interferes with the work of the other links in the kinematic chain. The aim of our study was to evaluate the effect of head posture on the breathing activities of the chest. Material and methods: The research was conducted on a group of 65 patients (51 years ± 9.8 years), including 48 women and 17 men. Head posture and chest movements were assessed using a photogrammetric method. Results: The results confirmed the existence of a negative correlation between head position in the sagittal plane and movements of lower ribs. Forward head posture resulted in lower amplitude of costal arch motion: for the transverse plane Spearman’s R = –0.296, for the frontal plane; –0.273, –0.289. Tilting the head in the frontal plane also influenced the change in the biomechanics of breathing and contributed to a reduction of respiratory movements of the lower ribs Spearman’s R = –0.260. Conclusions: Changing the position of the head causes disturbances in the three-dimensional shape of the chest and its respiratory movements.
Źródło:
Acta of Bioengineering and Biomechanics; 2015, 17, 2; 143-148
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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