scholarly journals Greater Cortical Thickness in Elderly Female Yoga Practitioners—A Cross-Sectional Study

Author(s):  
Rui F. Afonso ◽  
Joana B. Balardin ◽  
Sara Lazar ◽  
João R. Sato ◽  
Nadja Igarashi ◽  
...  
2017 ◽  
Author(s):  
Rui F. Afonso ◽  
Joana B. Balardin ◽  
Sara Lazar ◽  
João R. Sato ◽  
Nadja Igarashi ◽  
...  

Yoga, a mind-body activity that requires attentional engagement, has been associated with positive changes in brain structure and function, especially in areas related to awareness, attention, executive functions and memory. Normal aging, on the other hand, has also been associated with structural and functional brain changes, but these generally involve decreased cognitive functions. The aim of this cross-sectional study was to compare brain cortical thickness (CT) in elderly yoga practitioners and a group of age-matched healthy non-practitioners. We tested 21 older women who had practiced hatha yoga for at least 8 years and 21 women naive to yoga, meditation or any mind-body interventions who were matched to the first group in age, years of formal education and physical activity level. A T1-weighted MPRAGE sequence was acquired for each participant. Yoga practitioners showed significantly greater CT in a left prefrontal lobe cluster, which included portions of the lateral middle frontal gyrus, anterior superior frontal gyrus and dorsal superior frontal gyrus. We found greater CT in the left prefrontal cortex of healthy elderly women who trained yoga for a minimum of 8 years compared with women in the control group.


2015 ◽  
Vol 7 (3) ◽  
pp. 322-329 ◽  
Author(s):  
Sang Yoon Lee ◽  
Won Kim ◽  
Hee-Won Park ◽  
Sang Chul Park ◽  
In Kwon Kim ◽  
...  

PEDIATRICS ◽  
1972 ◽  
Vol 50 (6) ◽  
pp. 912-915
Author(s):  
Ricardo A. Blanco ◽  
Roy M. Acheson ◽  
Cipriano Canosa ◽  
Joao B. Salomón

This is a cross sectional study of the cortical thickness of the second metacarpal as judged from radiographs of the hand and wrist of 1,409 children under 7 years of age (691 boys and 718 girls) from a rural area of Guatemala. The data were compared with standards of United States children. All the films were read by the senior author. It was found that after reaching the age of 2 years the cortices of the boys were consistently thinner than those of the girls. Both sexes had age-specific mean values which were significantly lower than those of healthy U.S. children of the same age. However, the boys lagged further behind the U.S. standards than did the girls, and this difference in retardation between the sexes was significant.


2015 ◽  
Vol 8 (2) ◽  
pp. 148 ◽  
Author(s):  
Aarti Jagannathan ◽  
VV Narayanan ◽  
Isha Kulkarni ◽  
SonaliP Jogdand ◽  
Subramanya Pailoor ◽  
...  

2021 ◽  
Vol 65 ◽  
pp. 127-131
Author(s):  
Niranjan Kala ◽  
Sushma Pal ◽  
Sachin Kumar Sharma ◽  
Shirley Telles ◽  
Acharya Balkrishna

Objectives: The present study compared yoga practitioners with age- and gender-matched yoga naïve persons on performance in a mirror tracing task which involved tracing a star pattern on a sheet of paper while looking at its reflection in a mirror. Materials and Methods: The present cross-sectional study included twenty yoga practitioners of both sexes (15 females; group mean age ± SD; 24.8 ± 3.4 years) and twenty yoga naïve persons (15 females; group mean age ± SD; 24.2 ± 3.8 years) of the same age range. Both groups were assessed for performance in the mirror tracing task in three trials. The distance covered, total errors, and time taken to complete the task were noted. Results: Yoga practitioners made significantly less errors (P < 0.05) in the third trial and covered greater distance in star tracing in the first (P < 0.05) and second (P < 0.05) trials compared to yoga naïve participants. Mann– Whitney U-test was used for all comparisons. Conclusion: Yoga practice may be useful to facilitate learning in the tasks that require better perceptual and motor skills.


Author(s):  
Nikkoh P. Muñoz ◽  
Adrian F. Fernando ◽  
Samantha S. Castañeda

Objective: To determine if the anatomic dimensions (length, cross-sectional width, cortical             thickness) of the Filipino fibula are ideal for mandibular reconstruction. Method: Design:           Cross-sectional study Setting:           Anatomy dissection laboratory Patients:         40 fibulas from 20 adult cadavers Results: Morphometric examination showed the mean length of the harvested fibulas was 33.5 cm. The mean horizontal (a-d) and vertical (b-c) widths of the proximal cross-section (point B) were 15.1 ± 0.28 mm and 9.9 ± 0.15 mm respectively. The mean horizontal (a-d) and vertical (b-c) widths of the distal cross-section (point D) were 15.4 ± 0.24 mm and 10.3 ± 0.49 mm respectively. The mean cortical thickness of the anterior (a), lateral (b), posterior (c) and medial (d) aspects of the proximal cross-section (point B) were 5.2 ± 0.1 mm, 3.2 ± 0.04 mm, 3.6 ± 0.01 mm, and 2.9 ± 0.06 mm respectively. The mean cortical thickness of the anterior (a), lateral (b), posterior (c) and medial (d) aspects of the distal cross-section (point D) were 5.1 ± 0.21 mm, 3.1 ± 0.11 mm, 3.5 ± 0.04 mm, and 2.9 ± 0.09 mm respectively. Conclusion: Our findings show that the Filipino fibulas studied have dimensions that are ideal for mandibular reconstruction. Keywords: Mandibular reconstruction, Fibula, Free Flaps, Fibular bone dimensions, Filipino


2020 ◽  
Vol 3 (3) ◽  
pp. 1
Author(s):  
Fadhlil Ulum Abdul Rahman ◽  
Alongsyah Zulkarnaen Ramadhan ◽  
Farina Pramanik ◽  
Ria Noerianingsih Firman

Objectives: The aim of this study was to obtain the value of mandibular cortical thickness in HIV-infected children and adolescents based on panoramic radiographs. Material and Methods: This descriptive and cross-sectional study was carried out on 43 panoramic radiographs of HIV-infected children and adolescents. The value of mandibular cortical thickness were measured by three indices regarded as mental index (MI), gonial index (GI), and antegonial index (AGI) using a digital calipers directly on the panoramic radiographs which had been taken previously. Results: Among 43 panoramic radiographs, 18 (41,86%) were boys and 25 (58,14%) were girls. Based on age range, there are 30 samples (69,77%) were categorized as children with age range 5-11 years  and 13 samples (30,23%) were categorized as adolescents with age range 12-16 years. The lower value of mandibular cortical thickness based on MI, AGI, and AGI was seen in girls compared to boys. The adolescents have a higher value of mandibular cortical thickness compared with the children. Conclusion: There are different values of mandibular cortical thickness in HIV-infected children and adolescents based on sex and age.


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