<![CDATA[Background: Anemia remains an important health concern among adolescent girls and young women. Reproductive Health Gymnastics (RHG) may offer a complementary physical-activity approach, but evidence regarding its short-term association with hemoglobin (Hb) concentration is limited. Objective: To evaluate the short-term effectiveness of RHG in increasing Hb concentration among female midwifery students at Bhakti Asih Polytechnic Purwakarta. Methods: This quasi-experimental pretest-posttest control-group study included 64 first-year female midwifery students selected by purposive sampling and analyzed in an RHG group (n = 32) and a control group (n = 32). The RHG group participated in a 12-day structured program comprising aerobic movements, stretching, core-muscle strengthening, breathing exercises, and pelvic-rocking movements delivered with standardized video guidance and monitored using a compliance logbook; the control group continued routine activities. Capillary Hb was measured before and after the intervention using an Easy Touch GCHb digital hemoglobin meter. Because Hb data were non-normally distributed, within-group changes were analyzed using the Wilcoxon signed-rank test and between-group differences in Hb change (posttest minus pretest) using the Mann-Whitney U test (two-sided alpha = 0.05). The study record did not retain the original nonrandom allocation mechanism, a priori sample-size calculation, or complete intervention-dose and Hb-standardization details; these limitations are reported explicitly rather than reconstructed retrospectively. Results: The reported mean Hb increase was 1.38 g/dL in the RHG group and 0.14 g/dL in the control group, corresponding to an unadjusted arithmetic difference in mean change of 1.24 g/dL. The intervention group showed a significant pretest-posttest change (Wilcoxon Z = -4.953; p < 0.001; rank-based r = 0.88). The between-group comparison of Hb change was reported as significant (Mann-Whitney U test, p < 0.05). However, the archived study record does not retain group-specific absolute pretest and posttest Hb summaries, SD/IQR or range values, the control-group Wilcoxon output, the Mann-Whitney U statistic and exact p-value, or 95% confidence intervals. These unavailable statistics were not reconstructed, and the precision and clinical significance of the comparative effect therefore remain incompletely quantified. Conclusion: In this single-institution sample of first-year female midwifery students, participation in a 12-day RHG program was associated with a greater short-term increase in measured Hb concentration than routine activities. The finding should be interpreted cautiously given the quasi-experimental design, short follow-up, and incomplete control of potential confounding factors.]]>
