Age related changes in pelvis size among adolescent and adult females with reference to parturition from Naraingarh, Haryana (India)

Developmental origins of variability in pelvic dimensions: Evidence from nulliparous South Asian women in the United Kingdom

“…An early study by Pan () found no association between height and pelvic dimensions in Indian women. Our results, however, are in line with a number of subsequent studies, which reported positive associations between adult height and the pelvis (Bernard, ; Cox, ; Holland et al, ; Kakoma, ; Sharma et al, ). To investigate the impact of earlier vs later linear growth on pelvis size, we partitioned height into tibia length, which is suggested to be a sensitive marker of early‐life environmental conditions and thus may act to index growth in this period (Bailey et al, ; Pomeroy et al, ), and height‐residual.…”

“…The current study suggests, however, that variability in several pelvic dimensions may be sensitive to linear growth both in and after the first 2 to 3 years of postnatal life. Growth of the pelvis may broadly track growth in stature, despite adult height being achieved prior to the cessation of pelvic growth (Moerman, ; Sharma et al, ). Our findings do not confirm, but they are consistent, with the notion that an environmental insult in one growth period could be offset to some degree by improved conditions in another.…”

“…Shorter women are more likely to experience disproportion between dimensions of the pelvic canal and fetal body (Aitken & Walls, ; Toh‐adam, Srisupundit, & Tongsong, ; Tsu, ), despite some evidence for a protective effect of maternal height‐pelvic shape covariance (Fischer & Mitteroecker, ; Kurki, ). Adult height of women has been linked to their pelvis size in several studies (Bernard, ; Cox, ; Holland, Cran, Elwood, Pinkerton, & Thompson, ; Kakoma, ; Sharma, Gupta, & Shandilya, ), although others have reported more complex associations (Tague, ), or no association (Pan, ). With respect to fetal size, most attention has been directed to the head; however, components of birth size such as weight and shoulder width are also relevant (Merchant et al, ; Stulp et al, ; Trevathan & Rosenberg, ).…”

Variation in obstetric dimensions of the human bony pelvis in relation to age‐at‐death and latitude

“…Ideally, a longitudinal study of size and shape changes in the human pelvis from clinical data would demonstrate if the female pelvis does continue to grow in some true pelvis dimensions with age, and the male pelvis does not. Sharma et al (), as one of the few studies to examine the growth of the pelvis in a sample of living individuals, provide some evidence that this is the case, though it remains uncertain which regional segments of the pelvis are continuing to grow through early adulthood, and if this remodeling is evident in males. Such studies as Sharma et al () have the advantage of documenting changes in association with activity, pregnancy, as well as hormonal and metabolic shifts.…”

“…However, Tague indicated that such age differences in dimensions may have resulted from continued growth through early adulthood, a finding supported by recent studies. Sharma, Gupta, and Shandilya () showed that the overall size of the pelvis, measured from external pelvic dimensions among women from the Haryana state in India, continues to increase in early adulthood in association with remodeling related to parturition and increased body mass. In another recent study, Huseynov et al () examined a modern forensic sample that demonstrated the same morphological changes in the female pelvis reported by Tague () after early adult age.…”