scholarly journals Trunk Posture Adaptations during Sitting on Dynamic Stool: A Validation Study

2020 ◽  
Vol 10 (21) ◽  
pp. 7567
Author(s):  
Alessandro Picelli ◽  
Giuliano Mazzocco ◽  
Nicola Smania
Keyword(s):  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Typical Feature ◽  
Point Of View ◽  
Spinal Curvature ◽  
The Novel ◽  
Sitting Posture ◽  
Trunk Posture ◽  
Dynamic Sitting

Back pain is a complex condition that results from multiple factors including sitting issues such as the chair type and spinal sitting posture. The physiological spinal curvature on the sagittal plane represents a typical feature of good body posture. Sitting postures matching the physiological shape of the spine on the sagittal plane during standing are deemed advantageous from a postural point of view. The aim of this study was to validate a novel dynamic stool by comparing trunk posture adaptations on the sagittal plane during dynamic sitting vs. conventional sitting (standard stool) in healthy people. In total, 100 healthy adults were included. Age, sex and body mass index were recorded. Thoracic kyphosis and lumbar lordosis were measured with the IncliMed® goniometer during standing posture, conventional sitting posture (standard stool) and dynamic sitting posture (novel dynamic stool). Sitting posture was maintained for 2 min before evaluation. Thoracic kyphosis and lumbar lordosis were significantly different between standing vs. sitting (dynamic and conventional) posture (p < 0.001) and between dynamic vs. conventional sitting posture (p < 0.001). Sitting on the novel dynamic stool tested in this study was shown to provide a greater match of thoracic kyphosis and lumbar lordosis with the physiological spinal curvature on the sagittal plane during standing than conventional sitting.

scholarly journals Sagittal imbalance of the spine is associated with poor sitting posture among primary and secondary school students in China: A cross-sectional study

2021 ◽  
Author(s):  
Li Chaoqun ◽  
Zhao Yuqi ◽  
Yu Zhenghui ◽  
Han Xu ◽  
Wen Li ◽  
...  
Keyword(s):  
Secondary School ◽  
Lumbar Lordosis ◽  
Secondary School Students ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Spinal Injury ◽  
Assessment System ◽  
Sagittal Imbalance ◽  
School Students ◽  
Sitting Posture

Abstract Background There's no definite answer as to how writing posture affects students' spine. This study attempted to compare the sagittal curvature of the spine between sitting and standing postures in adolescents. To reveal the variation rule of spinal sagittal curvature of students with learning posture, and to discover the key factors that may affect students' spinal health. Methods 1138 participants (male, 604; female, 534; age range, 6–18 y) from three schools in Tianjin, China, including 570 primary school students and 568 secondary school students. This study used SpineScan and PA200 Station Posture Assessment System to assess the sagittal curvature of the spine for three postures: sitting on a chair in an upright position, seated at a desk while reading/writing, and standing in a natural relaxed position. Analyze the difference of the spine angle of the three postures and the correlation between the sagittal plane angle of the spine and body posture. Results When some teenagers sat reading/writing, the sagittal angle of the spine markedly changed, with the lumbar lordosis angle significantly decreased (p < 0.05) and the thoracic kyphosis angle significantly increased (p < 0.05). These angles interact with each other and were positively correlated with the height of the teenager (R2 = 0.179; p < 0.05). By contrast, teenagers with lumbar lordosis and thoracic kyphosis angles within standard references ranges in a seated reading/writing posture also had good spine shape while standing. Conclusions Compared with standing posture, the angle of thoracic kyphosis gradually increases from upright sitting to reading/writing., Lumbar lordosis significantly decreasing or even disappearing, and the flexion of whole spine will increase the risk of spinal injury. Height is an important factor affecting the shape of students' sitting spine.

scholarly journals Adolescent idiopathic scoliosis: sagital plane and low density pedicle screws

2014 ◽  
Vol 13 (1) ◽  
pp. 13-15
Author(s):  
Rodrigo Augusto do Amaral ◽  
Robert Meves ◽  
Maria Fernanda Silber Caffaro ◽  
Ricardo Shigueaki Galhego Umeta ◽  
Luciano Antônio Nassar Pelegrino ◽  
...  
Keyword(s):  
Medical Records ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Pedicle Screws ◽  
Low Density ◽  
Kyphosis Correction ◽  
Pearson Coefficient ◽  
Analysis Of Dispersion

OBJECTIVE: To examine the sagittal curves of patients treated with CD instrumentation using exclusively pedicle screws. METHODS: Image analysis of medical records of 27 patients (26 M and 1 F) with a minimum follow-up of 6 months, who underwent surgical treatment in our service between January 2005 and December 2010. The curves were evaluated on coronal and sagittal planes, taking into account the potential correction of the technique. RESULTS: In the coronal plan the following curves were evaluated: proximal thoracic (TPx), main thoracic (TPp), and thoracolumbar; lumbar (TL, L), and the average flexibility was 52%, 52%, and 92% and the capacity of correction was 51%, 72%, and 64%, respectively. In the sagittal plane there was a mean increase in thoracic kyphosis (CT) of 41% and an average reduction of lumbar lordosis (LL) of 17%. Correlation analysis between variables showed Pearson coefficient of correlation of 0.053 and analysis of dispersion of R2 = <0.001. CONCLUSION: The method has shown satisfactory results with maintenance of kyphosis correction in patients with normal and hyper kyphotic deformities.

scholarly journals Influence of the Weight of a School Backpack on Spinal Curvature in the Sagittal Plane of Seven-Year-Old Children

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Katarzyna Walicka-Cupryś ◽  
Renata Skalska-Izdebska ◽  
Maciej Rachwał ◽  
Aleksandra Truszczyńska
Keyword(s):  
Body Weight ◽  
Lumbar Lordosis ◽  
Sagittal Plane ◽  
Body Posture ◽  
Spinal Curvature ◽  
Vertical Position ◽  
Study Group ◽  
Number Of Children ◽  
Total Length ◽  
Backpack Weight

The aim of the paper was to determine a correlation between the weight of a child’s backpack, their body weight, and certain features of their body posture.Material and Methods. The study group consisted of 109 children, all aged seven years. The parameters of body posture were determined using the Zebris Ultrasonic System.Results. The number of children carrying a school backpack in accordance with recommendations was 44 subjects (40.37%). Statistically significant changes were found in the total length of the spine (Z=2.223,p=0.026) and between backpack weight and changes in the following parameters: the total length of the spine (rs=-0.3999,p=0.017), the length and the angle of the lumbar lordosis (rs=-0.3352,p=0.049), the angle of the lumbar lordosis (rs=-0.5065,p=0.002), and the sacral angle (rs=-0.4279,p=0.010).Conclusions. Wearing a backpack heavier than 10% of one’s body weight can cause shallowing of the lumbar lordosis and a tendency towards a vertical position of the sacrum. Monitoring the weight of children’s school backpacks and enabling them to leave books and notebooks at school would probably be beneficial in reducing the daily burden put on children’s spines.

scholarly journals The Sagittal Integral Morphotype in Male and Female Rowers

2021 ◽  
Vol 18 (24) ◽  
pp. 12930
Author(s):  
Jose Ramón Alvero-Cruz ◽  
Fernando Santonja-Medina ◽  
Jose Manuel Sanz-Mengibar ◽  
Pilar Sainz de Baranda
Keyword(s):  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Trunk Flexion ◽  
Normal Range ◽  
Average Value ◽  
Rowing Performance ◽  
Thoracic Hyperkyphosis ◽  
Training Background ◽  
And Training

The goal of this study was to describe the integrated spinal assessment of the sagittal morphotype in rowers to determine whether the intense practice of rowing causes a modification of the sagittal curvatures of the spine, its relationship with the rowing technique, and training background. The second goal was to analyse how the dorsal and lumbar curves behave in the three phases of the rowing gesture, and to determine which phases can be detrimental to the correct development of the spine during growth. We analysed the spine curvatures in the sagittal plane of 29 females and 82 males, which were measured with an inclinometer in standing, slump sitting, maximal trunk flexion and during rowing performance. The average value of thoracic kyphosis in the rowers was 30° (mean, 30 + 8.27°). Thoracic hyperkyphosis was found in only two rowers (1.8%). Lumbar lordosis was within normal range in 84.1% of the males (mean, 27 + 9.57°) and 75.9% of female rowers (mean, 33°). Functional thoracic hyperkyphosis was observed in 57.4% of the males and 17.1% of the females. Functional lumbar hyperkyphosis was observed in 28 of the 69 males (40.5%) and five of 22 females (17.2%). Rowing seems to provide adequate spine alignment in the sagittal plane on standing. The integrated spinal assessment of the sagittal morphotype showed that half or our rowers presented with functional thoracic hyperkyphosis, and 43.2% presented with functional lumbar hyperkyphosis. Spine behaviour during the rowing technique shows that the thoracic kyphosis (98.2%) and lumbar spine (91%) perform within normative ranges and could explain the adequate positioning of the spine in the sagittal plane on standing. Years of rowing training tend to reduce thoracic kyphosis in males.

scholarly journals Dynamics of Schoolchildren`s Spine Sagittal Curves, Parameters of Cardiovascular System and their Coherence

2018 ◽  
Vol 2 (73) ◽  
Author(s):  
Vilma Mauricienė ◽  
Arūnas Emeljanovas ◽  
Kristina Bačiulienė ◽  
Algė Daunoravičienė
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Activity Level ◽  
Age Changes ◽  
System Parameters ◽  
Gender And Age ◽  
Significant Difference

Objective. We aimed to investigate the peculiarities of cardiovascular system parameters and changes in spine sagittal curves with age in schoolchildren and also possible interrelation between parameters in those two systems. Material and methods. 124 schoolchildren (aged 7—18 years) were divided into three groups according to their age. For evaluation of cardiovascular system the bicycle ergometry test with modified Bruce protocol was performed and computerized functional test analysis system “Kaunas — Load” was used. Load, arterial blood pressure, ECG in 12 standard derivations were synchronously recorded at every step. Evaluation of spine sagittal plane was performed using flexible ruler-cirtometer. Angular values of thoracic kyphosis and lumbar lordosis were measured. Results. Parameters of sagittal spine had few differences according to gender and age. Changes in sagittal plane curves with age were greater in boys than in girls. In the group of boys the expression of both sagittal curves had decreasing tendencies with age. Changes in girls’ sagittal curves were inconsistent with age. However, we found many significant differences in the parameters of cardiovascular system’s depending on gender and age. Different correlations between spinal sagittal curves and cardiovascular parameters according to gender and age could beassociated with different state in musculoskeletal system and development, different physical activity level and manyother factors, which vary among girls and boys and also changes with age. Conclusions. There was no significant difference of lumbar lordosis according to gender in all age groups. The thoracic kyphosis had significant different expression only among boys and girls in 7—10 years age group. We found significant difference of such cardiovascular system parameters as index of health, maximal power, pressure rate index, half recovery period of heart rate and change of double product according to gender. Thoracic kyphosis had more correlations with cardiovascular system parameters than lumbar lordosis. Blood pressure reactions had more correlations with spine sagittal curves in older girls and younger boys.Keywords: sagittal spine curves, cardiovascular system, lumbar lordosis, thoracic kyphosis.

Does vertebral level of pedicle subtraction osteotomy correlate with degree of spinopelvic parameter correction?

2011 ◽  
Vol 14 (2) ◽  
pp. 184-191 ◽  
Author(s):  
Virginie Lafage ◽  
Frank Schwab ◽  
Shaleen Vira ◽  
Robert Hart ◽  
Douglas Burton ◽  
...  
Keyword(s):  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Pedicle Subtraction Osteotomy ◽  
Sacral Slope ◽  
Spinopelvic Parameters ◽  
Sagittal Vertical Axis ◽  
Significant Difference ◽  
Spinopelvic Parameter ◽  
Spinal Imbalance

Object Pedicle subtraction osteotomy (PSO) is a spinal realignment technique that may be used to correct sagittal spinal imbalance. Theoretically, the level and degree of resection via a PSO should impact the degree of sagittal plane correction in the setting of deformity. However, the quantitative effect of PSO level and focal angular change on postoperative spinopelvic parameters has not been well described. The purpose of this study is to analyze the relationship between the level/degree of PSO and changes in global sagittal balance and spinopelvic parameters. Methods In this multicenter retrospective study, 70 patients (54 women and 16 men) underwent lumbar PSO surgery for spinal imbalance. Preoperative and postoperative free-standing sagittal radiographs were obtained and analyzed by regional curves (lumbar, thoracic, and thoracolumbar), pelvic parameters (pelvic incidence and pelvic tilt [PT]) and global balance (sagittal vertical axis [SVA] and T-1 spinopelvic inclination). Correlations between PSO parameters (level and degree of change in angle between the 2 adjacent vertebrae) and spinopelvic measurements were analyzed. Results Pedicle subtraction osteotomy distribution by level and degree of correction was as follows: L-1 (6 patients, 24°), L-2 (15 patients, 24°), L-3 (29 patients, 25°), and L-4 (20 patients, 22°). There was no significant difference in the focal correction achieved by PSO by level. All patients demonstrated changes in preoperative to postoperative parameters including increased lumbar lordosis (from 20° to 49°, p < 0.001), increased thoracic kyphosis (from 30° to 38°, p < 0.001), decreased SVA and T-1 spinopelvic inclination (from 122 to 34 mm, p < 0.001 and from +3° to −4°, p < 0.001, respectively), and decreased PT (from 31° to 23°, p < 0.001). More caudal PSO was correlated with greater PT reduction (r = −0.410, p < 0.05). No correlation was found between SVA correction and PSO location. The PSO degree was correlated with change in thoracic kyphosis (r = −0.474, p < 0.001), lumbar lordosis (r = 0.667, p < 0.001), sacral slope (r = 0.426, p < 0.001), and PT (r = −0.358, p < 0.005). Conclusions The degree of PSO resection correlates more with spinopelvic parameters (lumbar lordosis, thoracic kyphosis, PT, and sacral slope) than PSO level. More importantly, PSO level impacts postoperative PT correction but not SVA.

Differences on Spinal Curvature in Standing Position by Gender, Age and Weight Status Using a Noninvasive Method

2011 ◽  
Vol 27 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Morin Lang-Tapia ◽  
Vanesa España-Romero ◽  
Juan Anelo ◽  
Manuel J. Castillo
Keyword(s):  
Healthy Subjects ◽  
Lumbar Lordosis ◽  
Weight Status ◽  
Thoracic Kyphosis ◽  
Standing Position ◽  
Healthy People ◽  
Spinal Curvature ◽  
Noninvasive Method ◽  
Study Participants ◽  
Determinant Factor

This aim was to examine differences on lumbar lordosis and thoracic kyphosis in standing position by gender, age and weight status in healthy subjects using a noninvasive method. A total of 297 women (36.6 ± 7.3 years) and 362 men (39.8 ± 7.5 years) participated in this study. Participants were categorized according to the international BMI (kg/m2) cut-off points. Age was stratified by ten years increments starting from 20 y. Men showed smaller lumbar lordosis (17.3 ± 9.3) and larger thoracic kyphosis (42.8 ± 8.8°) than women (29.6 ± 11.3 and 40.4 ± 9.5° respectively; bothp< .001). Older groups presented smaller lumbar lordosis and larger thoracic kyphosis values compared with the 20–29 y group (20.9 ± 10.4, 20.8 ± 11.2 and 23.6 ± 12.6° for ≥50, 40–49 and 30–39 y, respectively vs. 26.7 ± 12.2° for 20–29 y in lumbar lordosis and 42.6 ± 9.8, 42.61 ± 8.7 and 41.8 ± 8.9° for ≥50, 40–49 and 30–39 y, respectively vs. 37.5 ± 10.9° for 20–29 y in thoracic kyphosis; bothp< .05). Finally, overweight and obese groups showed smaller lumbar lordosis (19.4 ± 11.1 and 20.9 ± 11.8° respectively) and larger thoracic kyphosis values (42.7 ± 8.9 and 42.8 ± 9.4° respectively) compared with nonoverweight participants (25.1 ± 12.4 and 40.6 ± 9.2° for lumbar lordosis and thoracic kyphosis respectively; allp< .05). However, when gender, age and weight status were take into account all together only gender seems to influence the lumbar lordosis curvature. The results of this study suggest that gender could be the only determinant factor of lumbar lordosis in healthy people.

scholarly journals Postural analysis in female Bharatanatyam dancers: a cross-sectional study

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Vrushali P. Panhale ◽  
Prachita P. Walankar ◽  
Aishwarya Sridhar
Keyword(s):  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Pelvic Tilt ◽  
Sagittal Plane ◽  
Cross Sectional Study ◽  
The Body ◽  
Cervical Lordosis ◽  
Sectional Study ◽  
Cross Sectional ◽  
Significant Difference

Abstract Background Gaining proficiency in Bharatanatyam dance form necessitates maintenance of different postures for prolonged duration. These repetitive movements place tremendous physical demands on the body at young age and may alter the postural profile of the dancer. The study aimed to evaluate the differences in terms of posture between female Bharatanatyam dancers and age-matched non-dancers. A cross-sectional study was conducted in 40 female Bharatanatyam dancers and 40 age-matched female non-dancers in the age group of 18 to 30 years. Analysis of erect standing posture of dancers and non-dancers was conducted in a reserved environment using a photogrammetric method. Static photographs of the subjects were taken in the sagittal plane. The measurement of the angles of the digitized photographs was performed using KINOVEA 0.8.15 software. Head protrusion angle, cervical lordosis angle, thoracic kyphosis angle, lumbar lordosis angle, and pelvic tilt angle were evaluated. Results There was no significant difference between the dancers and non-dancers with respect to head protrusion angle (p = 0.081), cervical lordosis (p = 0.15), and thoracic kyphosis (p = 0.33). Significant differences were identified between the dancers and non-dancers for lumbar lordosis (p = 0.00) and pelvic tilt (p = 0.00) using independent t test with dancers. Higher values of lumbar lordosis and pelvic tilt were observed in dancers. Conclusion Increased lumbar lordosis and anterior pelvic tilt were observed in Bharatanatyam dancers as compared to non-dancers. Hence, it is vital to establish preventive measures like postural re-education, muscular balance, and flexibility to prevent erroneous postural patterns capable of causing pain and injuries.

scholarly journals Spinal curvatures of yoga practitioners compared to control participants—a cross-sectional study

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12185
Author(s):  
Małgorzata Grabara
Keyword(s):  
Body Mass ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Body Height ◽  
Cross Sectional Study ◽  
Control Group ◽  
Cross Sectional ◽  
Spinal Curvatures ◽  
Yoga Practitioners

Purpose The angles of thoracic kyphosis and lumbar lordosis determine the spinal alignment in the sagittal plane. The aim of this study was to compare the thoracic kyphosis and lumbar lordosis of male and female yoga practitioners with non-practicing participants and to determine the possible dependencies between sagittal spinal curvatures and somatic parameters, time spent on yoga exercise, and undertaking other physical activities in yoga practitioners. Methods The study involved 576 women and 91 men ages 18–68 years (mean = 38.5 ± 9) who were practicing yoga, and 402 women and 176 men ages 18–30 years (mean = 20.2 ± 1.3) as a control group. The angles of thoracic kyphosis and lumbar lordosis were measured using a Plurimeter-V gravity inclinometer. Results The two-way ANOVA demonstrated the influence of group (p < .0001) and sex (p = .03) on the angle of thoracic kyphosis, as well as the influence of group (p < .0001) and sex (p < .0001) on the angle of lumbar lordosis. It was noted that yoga practitioners had less pronounced thoracic kyphosis and lumbar lordosis and were more often characterized by normal or smaller thoracic kyphosis and lumbar lordosis than students from the control group. In yoga practitioners, the angle of thoracic kyphosis was positively correlated with age, body mass, BMI, and undertaking other forms of physical activity. The angle of lumbar lordosis was negatively correlated with body height and body mass. Conclusions The results suggest that yoga exercises can affect the shape of the anterior-posterior curves of the spine and may be an efficient training method for shaping proper posture in adults.

Lumbar Sagittal Plane Spinal Curvature and Junior-Level Cricket Players

2016 ◽  
Vol 21 (2) ◽  
pp. 47-52 ◽  
Author(s):  
Mark D. Hecimovich ◽  
Norman J. Stomski
Keyword(s):  
Lumbar Lordosis ◽  
Sagittal Plane ◽  
Spinal Curvature ◽  
Back Injury ◽  
Low Back ◽  
Lower Back ◽  
Significant Difference ◽  
Measurement Results ◽  
Lower Back Injury ◽  
The Relationship

Lumbar lordosis may be a risk factor for injury in junior-level athletes involved in sport which requires excessive amounts of extension. The purpose of this study was to examine the relationship between lumbar lordosis in junior-level cricket players with and without previous low back injury. Results demonstrated a statistically significant difference in lumbar lordosis between the two groups (LBI = 42.53 ± 9.10°; no LBI = 30.33 ± 8.36°; p < .01), with previous lower back injury accounting for 32% variation in lumbar lordosis (p < .01). The results indicate lumbar lordosis may be an issue worth examining in those athletes who partake in sports which have high levels of extension; but, as there is no accepted definition to lumbar postures, it is difficult to accurately interpret measurement results.

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