Introduction: Studies have demonstrated that resistance training and blood flow restriction (BFR) has notable advantages, including enhancing muscle growth, boosting muscle activation, and improving function. In the field of neuromuscular research, muscle electromyography (EMG) is a widely utilized method for understanding and analyzing neuromuscular recruitment patterns and identifying any adaptive changes that may occur. Purpose: The objective of this study was to examine the impact of blood flow restriction (BFR) on the amplitude pattern of six lower extremity (LE) muscles during resisted sled pushing activity at two different walking speeds: 80 bpm and 140 bpm. Methods: A convenience sample of 32 healthy individuals, an average of 23.8 years old (±1.42 SD). Surface electromyography was used on subjects’ tibialis anterior (TA), gastrocnemius (GA), vastus medialis (VM), biceps femoris (BF), gluteus maximus (GMa), and gluteus medius (GMe) on their dominant LE. The subjects then pushed a resistive sled with 40 feet for three trials at 80 and 140 bpm. After adding BFR at 80% limb occlusion pressure, all the trials were repeated. Statistical Analysis: A 2 × 6 (BFR group and muscle) repeated measures analysis of variance (ANOVA) test was used for significant interactions and main effects during each speed and BFR condition. The minimum (MIN), average (AVG), and maximum (MAX) electromyography (EMG) values are presented for each muscle. Results: ANOVA revealed a significant interaction between the BFR group and muscles with AVG F (1.92, 59. 39)=4.23,p=.021, and MAX F(2.53,78.56)=3.751, p=.019 at 80 bpm. The main effects between muscle groups were found with MIN at 80 bpm and AVG and MAX at 140 bpm. The main effects for the BFR group were AVG and MAX at 80 bpm and AVG and MAX at 140 bpm. When comparing AVG BFR 80 to 140 bpm, the main effects were found for both speeds and increased activation of all six muscles, most notably the GA and VM. Conclusion: At 80 bpm, BFR affected the GA, VM, and GMa. At 140 bpm, all six muscles showed increased AVG and MAX activation. When comparing 80 to 140 bpm, all six muscles showed increased activation at the BFR faster pace, most notably the GA and VM.

The research aimed to derive predictive equations for the skill performance in terms of the offensive tactical behavior of futsal players, while the research areas included the human field, which was represented by futsal players, and determined the time range for the period from (5/1/2023) until (15/3/2023). The researcher used the descriptive approach in the style of correlation and predictive relations, and the research sample consisted of (100) players from the clubs of Maysan province futsal, and the researcher applied skill performance tests and tactical behavior; Predictive equations were also extracted through which skill performance can be predicted in terms of offensive tactical behavior, and the researcher recommended the need for coaches to pay attention to offensive situations because of their great role in the performance of skills being one of the basic requirements that affect sports performance.

Against the backdrop of quality education, integrating physical education and health courses in China has been regarded as essential to fostering students' comprehensive development. This study explores leveraging interdisciplinary case-based teaching to promote the in-depth integration and fusion of physical education and health courses in China. The research systematically reviews the theoretical foundations of integrating physical education and health courses, interdisciplinary teaching, and case-based teaching methods in China. The study summarizes the comprehensive cases for conducting interdisciplinary case-based teaching while also pointing out the challenges in the implementation process, such as teachers' professional development lag, deficiencies in the evaluation system, and the scarcity of high-quality case resources. Finally, the study proposes strategies and recommendations in management, teacher development, and evaluation for promoting integrating physical education and health courses through interdisciplinary case-based teaching. This research provides a new practical path for optimizing physical education and health courses in China. It offers valuable insights for the integration of other disciplines, possessing both theoretical value and practical significance.