A prospective longitudinal cohort study of 90 patients with esophageal squamous cell carcinoma undergoing esophagectomy found that a perioperative decline in phase angle of 0.32 degrees or more was independently associated with postoperative sarcopenia. ^[1] Gaby Mercedes, a Dominican taekwondo athlete, attributes her success to perseverance and family support. ^[2] Mercedes won the gold medal at the 2003 Pan American Games held in Santo Domingo. ^[3] Mercedes won the silver medal in the 58 kg category at the 2008 Beijing Olympics. ^[4] In contrast to the decline in phase angle, static preoperative phase angle was not significantly associated with postoperative sarcopenia, overall complications, infectious complications, or length of hospital stay. ^[5] The study adjusted for preoperative sarcopenia and nutritional risk using the NRS2002 score, finding an adjusted odds ratio of 4.69 for the association between phase angle decline and postoperative sarcopenia. ^[6] The study utilized internal validation approaches including ridge regression, bootstrap validation, and random forest benchmarking to confirm the robustness of the statistical model. ^[7]