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A 2022 biomechanical/sonographic analysis modeled five common coital positions and measured changes in clitoral blood flow.
Laboratory studies define the female orgasm using a range of physiological markers—vaginal blood flow/engorgement, pelvic and uterine muscle contractions, and neuroendocrine changes such as prolactin ...
Ambulatory (at‑home) genital arousal measurement trades some of the experimental control of institutional laboratories for greater ecological validity, producing larger genital responses in some healt...
Modern imaging—primarily MRI and newer 3‑D reconstruction techniques—shows the clitoris to be a complex, multiplanar organ whose size, volume and visible configuration vary substantially between indiv...
Magnetic resonance imaging (MRI) studies of coitus show reproducible anatomic patterns of penile contact—most commonly preferential contact with the anterior vaginal wall and anterior fornix in face‑t...
Recent biomechanical and clinical literature converges on a clear, evidence-backed point: face‑to‑face alignments of the pelvis—especially modified missionary variants that bring the base of the penis...