Core stability is fundamental to posture, balance, and force transmission throughout the kinetic chain. Although traditionally associated with athletic performance, emerging research highlights its broader applicability to recreational fitness. This study investigates the effects of an eight-week core training program on muscle hypertrophy, static balance, and neuromuscular control in recreationally active, non-athletic adults. Participants will undertake a structured intervention comprising progressive triads targeting core stability, strength, and power. Assessment methods include surface electromyography (EMG), ultrasound imaging, three-dimensional force plates, Kinovea motion analysis, and the Satisfaction With Life Scale (SWLS) questionnaire. Expected outcomes include enhanced core muscle activation, improved static balance, and increased core-generated force during overhead medicine ball slam trials. Additionally, the intervention aims to facilitate hypertrophy of the transverse abdominis, internal oblique, and lumbar multifidus muscles, contributing to spinal resilience and motor control. This protocol bridges gaps in core training methodologies and advances their scalability for recreational populations. The proposed model offers a structured, evidence-informed framework for improving core activation, postural stability, muscle adaptation, movement efficiency, and perceived quality of life in recreationally active individuals.

Background: Hatha yoga has gained increasing popularity worldwide and has been associated with benefits for mental health and short-term emotional functioning. Objective: The present study examined pre–post changes in mood states following a single Hatha yoga session in adult women participating in community-based exercise programs. Methods: A total of 253 adult women participated in the study. Participants completed the Profile of Mood States (POMS) questionnaire immediately before and after a single 60 min Hatha yoga session. The questionnaire assesses anxiety–tension, depression, anger, fatigue, confusion, and vigor. Repeated measures ANOVA was used to examine the changes in mood states and the potential differences between the age groups. Results: Significant improvements in mood states were observed following the session. Anxiety–tension, depression, anger, fatigue, and confusion decreased, while vigor increased. No significant time × age group interaction was observed for most mood variables. However, a significant interaction was found for vigor, indicating that women aged 41 and older showed a greater increase following the session. Conclusions: Participation in a single Hatha yoga session was associated with short-term changes in mood states among adult women, suggesting that yoga may represent a potentially beneficial community-based activity for supporting short-term mood regulation.