Effects of Blended Learning on Physical Fitness and Basketball Skills of Male College Students: A Cluster Randomized Controlled Trial

Higher education institutions are increasingly recognizing their pivotal role in fostering not only academic excellence but also the cultivation of lifelong health behaviors, self-efficacy, and robust psychosocial development among students. These foundational aspects significantly influence academic performance, overall quality of life, and future trajectories. However, recent years have seen a concerning decline in the physical fitness levels of university students across China, a trend that has prompted researchers to explore innovative pedagogical approaches. A 12-week intervention study at Jiangsu University of Science and Technology has now provided compelling evidence that a blended learning methodology can significantly enhance both the physical fitness and basketball skills of male university students.

The study, employing a cluster randomized controlled trial design, involved 69 first-year male students. The findings indicate that this modern, integrated learning approach yields superior results compared to traditional teacher-centered methods. The research highlights a critical need to adapt physical education strategies to combat declining fitness levels and leverage the potential of technology in higher education.

Declining Fitness Trends and the Need for Innovation

The period of university education represents a crucial developmental stage. It is during these formative years that individuals establish habits that can last a lifetime, influencing their physical health, mental well-being, and overall life satisfaction. High-quality physical education programs are recognized for their multifaceted benefits, extending beyond physical prowess to encompass improved academic outcomes, enhanced social skills, effective emotional regulation, and a stronger sense of social responsibility through teamwork and community engagement.

Despite these recognized benefits, a persistent trend of declining physical fitness among university students has been observed globally, with China being no exception. This decline is often accompanied by a rise in the prevalence of overweight and obese individuals, contributing to a growing burden of cardiovascular risks. Several systemic factors within Chinese universities are believed to contribute to this issue, including a shortage of qualified physical education instructors, a lack of diverse instructional resources, and an over-reliance on outdated, traditional teaching methods. These limitations often result in passive learning experiences, diminished student interest in sports, and reduced motivation for independent physical activity outside of scheduled classes.

Traditional, teacher-centered models also struggle to accommodate the diverse learning needs and individual differences of students. With limited class time, educators find it challenging to provide personalized instruction. Furthermore, the evaluation systems often fall short, focusing too narrowly on outcomes rather than the learning process, and failing to accurately reflect a student’s progress and development.

In response to these challenges, educators and researchers are actively seeking more effective and adaptable instructional methods. The advent of advanced internet technologies has paved the way for blended learning, an educational paradigm that thoughtfully integrates online and traditional face-to-face instruction. This approach promises to overcome the limitations of purely traditional methods by harnessing the flexibility of online learning – offering advantages in terms of time, place, resource accessibility, and rapid feedback.

Blended Learning: A Hybrid Approach to Physical Education

Blended learning has seen successful implementation across various academic disciplines in Chinese higher education, including English, computer science, and mathematics. However, its application and rigorous evaluation within physical education, particularly concerning objective physical fitness outcomes and sport-specific skill acquisition, have remained relatively underexplored. While some studies have focused on subjective outcomes like motivation and engagement, fewer have employed robust research designs such as cluster randomized controlled trials with objective measurements.

Basketball, a sport of immense popularity among Chinese university students, particularly males, was chosen as the focus of this intervention. Its inherent complexity, encompassing a range of technical skills, tactical decision-making, and demands on various aspects of physical fitness (strength, explosive power, coordination), made it an ideal candidate for evaluating the efficacy of a blended learning approach.

The Intervention: A Structured 12-Week Program

The study meticulously designed a 12-week intervention to compare a blended learning approach with a traditional learning model. Sixty-nine male first-year students from Jiangsu University of Science and Technology were randomly assigned to either an experimental group (blended learning) or a control group (traditional learning). To ensure methodological rigor, the study adhered to the CONSORT statement guidelines for cluster randomized controlled trials.

Experimental Group: Blended Learning Components

The experimental group engaged in a sophisticated blended learning strategy that integrated several key components:

• Pre-Class Preparation: Students accessed pre-recorded instructional videos on the Chinese University MOOC platform. These short, focused videos, created by experienced coaches, covered fundamental basketball knowledge, offensive and defensive techniques, and physical conditioning exercises. The platform tracked student engagement, including viewing duration and quiz completion, allowing the instructor to monitor progress and provide timely feedback.
• In-Class Differentiated Skill Training: The traditional 90-minute class session was restructured. The 20-minute preparation phase involved reviewing pre-class quiz results and addressing challenging points identified online. The core 60-minute session shifted from passive explanation and demonstration to active, differentiated skill practice. This included targeted correction of common mistakes identified from online video submissions, group competitive drills (e.g., 3v3), and intensive physical training tailored to basketball-specific demands. The final 10-minute conclusion phase incorporated guided relaxation and personalized improvement suggestions.
• Post-Class Online Quizzes and Reflective Tasks: Following each class, students completed short, automatically graded online quizzes to reinforce learning. They were also assigned reflective tasks, often involving submitting practice videos for teacher review and participating in peer evaluations. A dedicated WeChat group facilitated ongoing communication, allowing students to ask questions and receive prompt assistance from the instructor.

Control Group: Traditional Learning

In contrast, the control group followed a conventional teacher-centered model. Their learning primarily consisted of in-class explanations, demonstrations, and practice sessions. Pre- and post-class learning activities were left to the students’ self-direction, with no structured online components or direct instructor interaction outside of scheduled class time.

Rigorous Evaluation of Physical Fitness and Skills

The effectiveness of the intervention was assessed through a comprehensive battery of tests administered by experienced fitness professionals under double-blind conditions. These evaluations closely followed the "National Student Physical Health Standard (2014 Revision)," a widely accepted framework in Chinese universities.

Physical Fitness Measures:

• Body Mass Index (BMI): Calculated as weight (kg) divided by height squared (m²).
• Lung Capacity: Measured in milliliters (ml).
• Physical Ability Tests:
  • 50-meter sprint (seconds)
  • Standing long jump (centimeters)
  • Pull-ups (number of repetitions)
  • 1,000-meter run (minutes and seconds)

Basketball Skills Measures:

• Set Shot Test: Students attempted ten shots from the free-throw line, with successful shots recorded.
• Half-Court Dribbling and Shooting Test: This test assessed agility and skill execution, measuring the time taken to complete a sequence of dribbling, shooting, and returning to the starting point.

Statistical analyses were conducted using SPSS 27.0, with significance levels set at p < 0.05. Cohen’s d was used to calculate effect sizes, providing a standardized measure of the magnitude of the observed differences.

Key Findings: Blended Learning Outperforms Traditional Methods

The 12-week intervention yielded significant and encouraging results, particularly for the blended learning group.

Physical Fitness Outcomes:

While both groups showed improvements in overall physical fitness, the blended learning approach led to notably greater gains in several key areas. Specifically, the experimental group demonstrated significant enhancements in:

• Lung Capacity: A large effect size (d = 1.14) indicated a substantial improvement.
• Standing Long Jump (Explosive Power): A large effect size (d = 1.04) highlighted the effectiveness of the blended approach in developing explosive strength.
• Pull-ups (Muscular Endurance/Strength): A very large effect size (d = 2.03) pointed to a significant boost in upper body strength and endurance.

Interestingly, the experimental group also showed a greater reduction in BMI (d = -0.54) and a more favorable improvement in 50-meter sprint times (d = -0.30) compared to the control group. These negative effect sizes for BMI and sprint times, when interpreted in the context of the overall improvements, suggest a shift in body composition rather than a detriment. The increase in lean muscle mass, indicated by improved strength and power, may have offset fat loss, leading to less dramatic changes in BMI or sprint speed in the short term.

However, the study found no significant difference between the groups for the 1,000-meter run (p = 0.597). This suggests that the 12-week blended learning intervention, as structured, may not have been sufficient to induce significant improvements in aerobic endurance, a finding consistent with previous research.

Basketball Skills Outcomes:

The blended learning approach proved exceptionally effective in enhancing basketball-specific skills. Both groups improved in the set shot and half-court dribbling and shooting tests, but the experimental group’s progress was markedly superior.

• Set Shot Test: The experimental group achieved a large effect size (d = 1.63) in successful shots, significantly outperforming the control group’s large but relatively smaller effect size (d = 1.25).
• Half-Court Dribbling and Shooting Test: The blended learning group again demonstrated a large effect size (d = 1.55) in terms of improved performance (faster completion times), while the control group showed only a small effect size (d = 0.41).

These results underscore the efficacy of blended learning in promoting the acquisition and refinement of complex motor skills within a sport context.

Analysis and Implications: The Power of Integration

The study’s findings provide strong support for the integration of blended learning into university physical education programs. The success of the experimental group can be attributed to several synergistic factors rooted in pedagogical theory:

• Enhanced Self-Regulated Learning (SRL): The blended approach empowered students to take greater ownership of their learning journey. The flexibility of online modules, coupled with immediate feedback from quizzes and reflective tasks, fostered a cycle of planning, monitoring, and adjustment. This aligns with Self-Regulated Learning theory, which posits that active management of one’s learning leads to superior outcomes. By providing opportunities for autonomous preparation and self-assessment, students developed better metacognitive skills, leading to more effective practice and longer-term knowledge retention.
• Optimized Zone of Proximal Development (ZPD): By shifting foundational knowledge acquisition online, in-class time in the experimental group was freed up to focus on practical application and skill development within each student’s Zone of Proximal Development (ZPD). The instructor could provide more individualized scaffolding and targeted feedback during active practice sessions, while peer interactions further facilitated collaborative learning. This Vygotskian concept highlights how structured support within a student’s ZPD is crucial for effective skill acquisition.

The observed improvements in strength, power, and muscular endurance, along with the pronounced gains in basketball skills, suggest that the blended learning model creates a more dynamic and personalized learning environment. The ability to review content at one’s own pace and then engage in focused, practical application with instructor guidance appears to be a powerful combination for skill mastery and physical development.

Areas for Further Development

Despite the positive outcomes, the study also identified areas where the blended learning approach might require refinement. The lack of significant improvement in aerobic endurance (1,000-meter run) suggests that while the intervention was effective for strength and power, a greater emphasis on sustained cardiovascular training might be needed. This could involve designing more frequent, higher-intensity aerobic sessions within the blended framework or encouraging greater student engagement in independent aerobic activities.

The findings related to BMI and 50-meter sprint warrant nuanced interpretation. While the effect sizes were negative relative to the control group, this might indicate an increase in lean muscle mass rather than a decrease in fitness. Future research incorporating direct body composition measures (e.g., body fat percentage) would provide a clearer picture.

Limitations and Future Directions

This study, while robust in its design, has certain limitations. The relatively small sample size and the single-institution setting mean that the findings may not be universally generalizable. The 12-week duration might also be insufficient to observe substantial changes in aerobic endurance. Future research should aim to include larger, more diverse student populations across multiple institutions and extend the intervention period. The inclusion of direct measures of body composition would also strengthen the interpretation of BMI-related results.

Conclusion: A Promising Path Forward

In conclusion, this study provides compelling evidence that a 12-week blended learning intervention significantly enhances the physical fitness and basketball skills of male university students. The approach fosters greater improvements in muscular endurance, explosive power, and sport-specific skills compared to traditional teaching methods. While its impact on BMI and sprint performance requires further investigation, the overall effectiveness of blended learning in creating a more engaging, flexible, and efficient physical education experience is clear. These findings offer valuable insights for universities seeking to modernize their physical education curricula, combat declining student fitness, and leverage the power of technology to promote holistic student development. The continued exploration and refinement of blended learning models hold immense potential for shaping the future of physical education in higher learning institutions.