Jānis Vētra
Biographic Data
| ID | 126271 |
|---|---|
| NAME | Jānis Vētra |
| GIVEN NAMES | Jānis |
| FAMILY NAME | Vētra |
| SIGNATURE | VĒTRA J |
| AFFILIATIONS | Riga Stradiņš University |
| ORCID | 0000-0002-5643-4014 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Analysis of distantia cristarum and distantia spinarum in Latvian female residents from different regions based on 1930s data
Background: Distantia spinarum and distantia cristarum are external pelvic measurements used in obstetrics. Historically, external pelvimetry was used as a screening tool because very small external pelvic measurements may suggest a generally small pelvis. Objectives: This study aims to analyse distantia cristarum and distantia spinarum using data collected in the 1930s from individuals across different regions of Latvia. The findings provide a r…
Longitudinal Growth Patterns in Boys and Girls Aged 9–14 Years by Birth Season
Longitudinal Analysis of Latvian Child Growth: Anthropometric Parameters Dynamics from Birth to Adolescence
This study provides a comprehensive analysis of the physical development patterns from birth to adolescence, utilizing a longitudinal dataset of 70 children monitored from birth until 17 years of age. The research focuses on the variability of growth trajectories, emphasizing the role of genetic and environmental factors in influencing these patterns. Key findings indicate that most children undergo one or two periods of accelerated growth, with …
Craniofacial Measurements and Indices Trends in Latvian Children Aged 1–15
This study provides valuable insights into the craniofacial development of Latvian children, highlighting the measurements, cranial and facial types, and their variations across age groups
Documentary Assessment of the Abilities of Kyrgyzstan's Research Ethics Committees During Public Health Emergency and Non-Emergency Situations
Institutional Research Ethics Committees (RECs) play crucial roles in the impartial and competent review of scientific research, particularly during public health emergencies. In this report, we examined their ability and capacity to provide this basic service during public health emergencies and non-emergency situations. Our qualitative documentary analysis revealed that there are currently no legal regulations guiding the activities of Kyrgyz R…
Significant change in muscular strength based on the head and neck position
We present our study of the influence of the head 30 degrees flexion position on the changes in the muscle strength of the upper extremities. This position is typical for a person working in front of a computer.The study involved 100 healthy volunteers and was performed at the Department of Morphology in Riga Stradiņš University, Riga, Latvia. For measurements we have used the MicroFET2 Hand Held Digital Muscle Tester to determine the strength of…
Estimation of body weight and stature in Latvian hospitalized seniors
Introduction. Weight and height are important measurements for many medical procedures. They are difficult to measure in bedridden patients. They can be estimated through equations based on anthropometric measurements generated in other countries, however their adequacy in different ethnical groups has been poorly studied.Objective. To confirm the adequacy of formulae suggested in literature and to develop weight and height predicting equations f…
Age specific relation in blood pressure with some anthropometrical variables of women in Latvia: A Rural-Urban Comparison
The aims of this study were to describe and compare the relationships between some variables of anthropometrical measurements and the blood pressure of women according to the age group categories in the urban and the rural population in Latvia. For this purpose 369 women (urban, 197 and rural, 172) were anthropometrically examined during the period of 2001–2005. The body height, the body weight, three circumferences (chest, waist, hip) and four s…
Predictors of the narrowest pelvic cavity diameter in live females and males
The aim of this study was to specify the predictors of the narrowest pelvic diameter in females and males. Possible common tendencies and sexual dimorphism in this prediction are in question for measures in live humans. In addition, the relationship between the false pelvis and the true pelvis was not explored in males. The research sample included 211 females and 181 males, who underwent the computer tomography examination in the Hospital Gailez…
Sexual dimorphism of pelvic morphology variation in live humans
This study represents the comparison of the morphology variation in different planes of female and male pelvis. Anthropological literature represents two different views of the pelvic morphology variation. On the one hand, the variation is considered lower in females than in males. On the other hand, some empirical findings demonstrated no differences in the pelvic morphology variation between sexes. Moreover, some measures of female pelvis demon…
Comparative analysis of the central body fat distribution of women in the urban population in Latvia
The aims of this study were to determine and compare the differences between the regional adiposity and some indexes of central body fat distribution of women according to age group categories in the urban population in Latvia. For this purpose 373 women were anthropometrically examined during the period 2001–2005. The body height, body weight, three circumferences (chest, waist, hip) and four skinfolds (biceps, triceps, subscapular, suprailiac) …
Female pelvis types and age differences in their distribution
The aim of this study was a statistics-based exploration of a typology of the female pelvis. The research sample included 172 females aged from 18 to 69. For measurements, the three dimensional CT images of pelvis were used. A cluster analysis was performed on anteroposterion and transverse diameters of the pelvic inlet and the midplane. The results revealed three clusters representing gynecoid, “narrow”, and intermediate types of female pelvis. …
Documentary Assessment of the Abilities of Kyrgyzstan's Research Ethics Committees During Public Health Emergency and Non-Emergency Situations
Institutional Research Ethics Committees (RECs) play crucial roles in the impartial and competent review of scientific research, particularly during public health emergencies. In this report, we examined their ability and capacity to provide this basic service during public health emergencies and non-emergency situations. Our qualitative documentary analysis revealed that there are currently no legal regulations guiding the activities of Kyrgyz R…
Sexual dimorphism of pelvic morphology variation in live humans
This study represents the comparison of the morphology variation in different planes of female and male pelvis. Anthropological literature represents two different views of the pelvic morphology variation. On the one hand, the variation is considered lower in females than in males. On the other hand, some empirical findings demonstrated no differences in the pelvic morphology variation between sexes. Moreover, some measures of female pelvis demon…
Comparative analysis of the central body fat distribution of women in the urban population in Latvia
The aims of this study were to determine and compare the differences between the regional adiposity and some indexes of central body fat distribution of women according to age group categories in the urban population in Latvia. For this purpose 373 women were anthropometrically examined during the period 2001–2005. The body height, body weight, three circumferences (chest, waist, hip) and four skinfolds (biceps, triceps, subscapular, suprailiac) …
Female pelvis types and age differences in their distribution
The aim of this study was a statistics-based exploration of a typology of the female pelvis. The research sample included 172 females aged from 18 to 69. For measurements, the three dimensional CT images of pelvis were used. A cluster analysis was performed on anteroposterion and transverse diameters of the pelvic inlet and the midplane. The results revealed three clusters representing gynecoid, “narrow”, and intermediate types of female pelvis. …
Age specific relation in blood pressure with some anthropometrical variables of women in Latvia: A Rural-Urban Comparison
The aims of this study were to describe and compare the relationships between some variables of anthropometrical measurements and the blood pressure of women according to the age group categories in the urban and the rural population in Latvia. For this purpose 369 women (urban, 197 and rural, 172) were anthropometrically examined during the period of 2001–2005. The body height, the body weight, three circumferences (chest, waist, hip) and four s…
Predictors of the narrowest pelvic cavity diameter in live females and males
The aim of this study was to specify the predictors of the narrowest pelvic diameter in females and males. Possible common tendencies and sexual dimorphism in this prediction are in question for measures in live humans. In addition, the relationship between the false pelvis and the true pelvis was not explored in males. The research sample included 211 females and 181 males, who underwent the computer tomography examination in the Hospital Gailez…
Estimation of body weight and stature in Latvian hospitalized seniors
Introduction. Weight and height are important measurements for many medical procedures. They are difficult to measure in bedridden patients. They can be estimated through equations based on anthropometric measurements generated in other countries, however their adequacy in different ethnical groups has been poorly studied.Objective. To confirm the adequacy of formulae suggested in literature and to develop weight and height predicting equations f…
Significant change in muscular strength based on the head and neck position
We present our study of the influence of the head 30 degrees flexion position on the changes in the muscle strength of the upper extremities. This position is typical for a person working in front of a computer.The study involved 100 healthy volunteers and was performed at the Department of Morphology in Riga Stradiņš University, Riga, Latvia. For measurements we have used the MicroFET2 Hand Held Digital Muscle Tester to determine the strength of…
Documentary Assessment of the Abilities of Kyrgyzstan's Research Ethics Committees During Public Health Emergency and Non-Emergency Situations
Institutional Research Ethics Committees (RECs) play crucial roles in the impartial and competent review of scientific research, particularly during public health emergencies. In this report, we examined their ability and capacity to provide this basic service during public health emergencies and non-emergency situations. Our qualitative documentary analysis revealed that there are currently no legal regulations guiding the activities of Kyrgyz R…
Longitudinal Analysis of Latvian Child Growth: Anthropometric Parameters Dynamics from Birth to Adolescence
This study provides a comprehensive analysis of the physical development patterns from birth to adolescence, utilizing a longitudinal dataset of 70 children monitored from birth until 17 years of age. The research focuses on the variability of growth trajectories, emphasizing the role of genetic and environmental factors in influencing these patterns. Key findings indicate that most children undergo one or two periods of accelerated growth, with …
Craniofacial Measurements and Indices Trends in Latvian Children Aged 1–15
This study provides valuable insights into the craniofacial development of Latvian children, highlighting the measurements, cranial and facial types, and their variations across age groups
Analysis of distantia cristarum and distantia spinarum in Latvian female residents from different regions based on 1930s data
Background: Distantia spinarum and distantia cristarum are external pelvic measurements used in obstetrics. Historically, external pelvimetry was used as a screening tool because very small external pelvic measurements may suggest a generally small pelvis. Objectives: This study aims to analyse distantia cristarum and distantia spinarum using data collected in the 1930s from individuals across different regions of Latvia. The findings provide a r…
Longitudinal Growth Patterns in Boys and Girls Aged 9–14 Years by Birth Season
Medicine (9 works) · Anthropometry (7 works) · Demography (6 works) · Anatomy (5 works) · Body Composition Measurement Techniques (4 works) · Internal Medicine (4 works) · Female pelvis (3 works) · Latvian (3 works) · Pelvimetry (3 works) · Pelvis (3 works)