Impact of Physical Activity During Pregnancy on Gestational Hypertension

Gao, Yajie; Ren, Shuaijun; Zhou, Huanzhen; Xuan, Rongrong

doi:10.5334/paah.49

Cited by 9 publications

(8 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The static force was applied as we assumed that the stretch was uniform and constant during the simulation. However, it may not affect our results as it has no influence on the inherent geometric difference between the size of fetal biparietal diameter and the prelabor urogenital hiatus [28,29]. Nevertheless, further research using the directional pelvic floor force is warranted for verification.…”

Section: Discussionmentioning

confidence: 95%

A Simulation Analysis of Maternal Pelvic Floor Muscle

Xuan

Yang

Gao

et al. 2021

IJERPH

Self Cite

View full text Add to dashboard Cite

Pelvic floor disorder (PFD) is a common disease affecting the quality of life of middle-aged and elderly women. Pelvic floor muscle (PFM) damage is related to delivery mode, fetal size, and parity. Spontaneous vaginal delivery causes especially great damage to PFM. The purpose of this study was to summarize the characteristics of PFM action during the second stage of labor by collecting female pelvic MRI (magnetic resonance imaging) data and, further, to try to investigate the potential pathogenetic mechanism of PFD. A three-dimensional model was established to study the influence factors and characteristics of PFM strength. In the second stage of labor, the mechanical responses, possible damage, and the key parts of postpartum lesions of PFM due to the different fetal biparietal diameter (BPD) sizes were analyzed by finite element simulations. The research results showed that the peak stress and strain of PFM appeared at one-half of the delivery period and at the attachment point of the pubococcygeus to the skeleton. In addition, during the simulation process, the pubococcygeus was stretched by about 1.2 times and the levator ani muscle was stretched by more than two-fold. There was also greater stress and strain in the middle area of the levator ani muscle and pubococcygeus. According to the statistics, either being too young or in old maternal age will increase the probability of postpartum PFM injury. During delivery, the entire PFM underwent the huge deformation, in which the levator ani muscle and the pubococcygeus were seriously stretched and the attachment point between the pubococcygeus and the skeleton were the places with the highest probability of postpartum lesions.

show abstract

Section: Discussionmentioning

confidence: 95%

A Simulation Analysis of Maternal Pelvic Floor Muscle

Xuan

Yang

Gao

et al. 2021

IJERPH

Self Cite

View full text Add to dashboard Cite

show abstract

“…Biomechanical testing combined with the cine-MRI and musculoskeletal modeling methods attempt to characterize fetal movement quantitatively. Finite element analysis and musculoskeletal measurement can quantify the kick forces and associated muscle forces, as well as fetal bone stress and strains [ 35 , 72 , 73 ]. The lower limb muscle forces generated by kicking at a certain gestational age can be quantified using the finite element analysis and adult musculoskeletal modeling method.…”

Section: Discussionmentioning

confidence: 99%

Computation of Fetal Kicking in Various Fetal Health Examinations: A Systematic Review

Liu

Xuan

et al. 2022

IJERPH

Self Cite

View full text Add to dashboard Cite

Fetal movement has always been considered an essential indicator to evaluate the health of the unborn fetus. Many factors affect fetal movement. The frequency of fetal kicking is an important measurement of whether fetal development is progressing and healthy. Various instruments and methods of detecting fetal movement have been used and each method has its advantages and disadvantages. Although limited by the fetal environment in utero, the finite element method and musculoskeletal model can be used to calculate fetal lower limb movement. This review aims to summarize the current detection techniques for fetal movement, especially in the lower limbs. These will be outlined by describing the different measurements of fetal movement, and the related biomechanical analyses of fetal lower limb skeletogenesis and the associated muscular development to better evaluate and calculate the movements of the fetus in the womb.

show abstract

“…The angular velocity of the fetal joints can be used to evaluate the impact of cocaine exposure on the fetus [19]. Exposure of pregnant women to drugs before childbirth have specific effects on the fetus [20]. Fetal knee angular velocity can be quantitatively assessed with a high degree of reliability.…”

Section: Discussionmentioning

confidence: 99%

Kinematic Comparison on Lower Limb Kicking Action of Fetuses in Different Gestational Weeks: A Pilot Study

et al. 2021

Self Cite

View full text Add to dashboard Cite

The fetal movements during different gestational weeks are essential for normal musculoskeletal development. The kinematic characteristics of fetuses with small differences in gestational weeks may be different and important. Ultrasonographic videos of fetal kicking action and plantarflexion action were collected from three healthy pregnant women (24, 27, and 30 gestational weeks) with normal fetal development. The kinematic characteristics, including angular range and angular velocity, were analyzed. These kinematic parameters were measured using simi motion. The final knee angle was found to decrease with progressive gestational weeks. Compared with 24 w, the knee joint angle at 27 w and 30 w was significantly reduced at the end of a kick-type movement (p < 0.01). Except for the mean angular velocity of the knee joint, there were no significant differences in the other conditions. The value at 30 w for mean angular velocity was significantly higher than that at 24 w (p = 0.02). In the ankle joint, no significant differences were observed between different conditions. Therefore, we can conclude that there was no significant difference in the kinematic characteristics of the ankle joint for small gestational age gaps, but there was a significant difference in the knee joint. As the gestation weeks increase, the range of kicking motion tends to decrease. The reason may be that with the increase of gestational weeks, fetal lower limb musculoskeletal development is gradually enhanced; the slower growth rate indicates that development reaches a peak level in weeks 24 to 30.

show abstract

Impact of Physical Activity During Pregnancy on Gestational Hypertension

Cited by 9 publications

References 52 publications

A Simulation Analysis of Maternal Pelvic Floor Muscle

A Simulation Analysis of Maternal Pelvic Floor Muscle

Computation of Fetal Kicking in Various Fetal Health Examinations: A Systematic Review

Kinematic Comparison on Lower Limb Kicking Action of Fetuses in Different Gestational Weeks: A Pilot Study

Contact Info

Product

Resources

About