The influence of low energy availability (LEA) on bone mineral density (BMD) and trabecular bone microarchitecture in pubescent female athletes is unclear. This study aimed to investigate the influence of LEA on BMD and trabecular bone microarchitecture in 21 pubescent female athletes (age, 12–15 years; 11 track and field athletes, 10 gymnasts). We used two indices to assess LEA: energy availability and the percent of ideal body weight. Dual-energy X-ray absorptiometry was used to obtain total body less head, lumbar spine BMD Z-scores, and lumbar trabecular bone scores (TBS). Pearson’s or Spearman’s correlation coefficients were used to assess the relationship among EA, percent of ideal body weight, and bone parameters. The threshold for statistical significance was set at p < 0.05. The percent of ideal body weight was significantly correlated with the BMD Z-scores of the total body less head (r = 0.61; p < 0.01), lumbar spine (r = 0.55; p < 0.01), and lumbar TBS (r = 0.47; p = 0.03). However, energy availability was not correlated with bone parameters. These findings suggest that screening for low ideal body weight may be a useful predictor of low BMD and insufficient trabecular bone microarchitecture in pubescent female athletes.

This study assessed depression and fatigue among first-time mothers in Japan who were less than one year postpartum and attended parenting classes. A total of 673 mothers (mean age ± standard deviation = 33.5 ± 3.98 years) participated. The mean Edinburgh Postnatal Depression Scale (EPDS) and Subjective Fatigue Symptom Scale (SFSS) scores showed multiple comparisons based on the number of months postpartum and the maternal age. Multiple regression analyses were performed using the EPDS scores as the outcome variable and the SFSS items as explanatory variables. The results showed that current age was inversely associated with the EPDS score (β = −.185, p < .0001) and three fatigue-related variables were positively associated with the EPDS score: lower back pain (β = .201, p = .0014), eyestrain (β = .338, p = .0108), and hand/finger pain (β = .508, p = .0261). The explanatory variable accounting for the largest amount of variance in the postpartum depression scores was lower back pain. Regarding parenting support activities provided by local public agencies, it is important to implement initiatives to promote the mental and physical health of postpartum mothers by partnering with various specialist organizations. The study findings are significant as they reveal, from a fact-finding survey, the inadequacy of support toward mothers after two months postpartum.

Background: Postpartum mental health challenges are increasingly recognized as a major public health concern, particularly during the early months after childbirth when emotional vulnerability is heightened. Although aerobic exercise is known to be associated with mood improvement, few large-scale studies have examined the acute psychological effects of a single exercise session in postpartum women, especially in contexts where environmental barriers restrict opportunities for physical activity. Methods: A total of 628 postpartum mothers (2–6 months postpartum) residing in a snowbound region of northern Japan participated in a single-session indoor bounce-based aerobic exercise program. Mood states were assessed immediately before and after the session using the validated Japanese short-form Profile of Mood States (POMS). Open-ended comments were also collected and analyzed thematically. Results: Paired analyses demonstrated significant acute improvements in key mood domains. Tension–Anxiety decreased (mean difference −7.91, 95% CI [−8.82, −7.00]; d = −0.68), and Anger–Hostility decreased (−4.61, 95% CI [−5.40, −3.82]; d = −0.45), while Vigor increased (11.82, 95% CI [10.47, 13.17]; d = 0.69) (all p < 0.001). In contrast, Depression–Dejection showed no significant change (−0.33, 95% CI [−1.30, 0.64]; p = 0.613). Conclusions: A single session of indoor bounce-based aerobic exercise was associated with immediate improvements in emotional well-being among postpartum women, particularly in anxiety-related and activation-related mood states. Because this exercise modality can be performed safely at home and is well suited to regions where outdoor physical activity is restricted, it may represent an accessible strategy for supporting postpartum mental health. Future research should examine longitudinal effects, controlled designs, and optimal program frequency to determine sustained benefits.