The study demonstrated that implementing a humanistic approach in physical education programs results in significant improvements in flexibility, and prone plank aspects of physical fitness in shy children. The current study, consistent with prior research (
7), demonstrated a significant improvement in the mascular endurance and flexibility component of physical fitness in the experimental group compared to the control group. Physicality is an issue for shy children (
18) because they tend to shy away from participating in physical activities, being withdrawn and cautious (
12,
16). Hence, this finding implies that appropriate educational strategies can assist shy children in developing greater physical fitness and engaging in physical endeavors with enhanced motivation, self-efficacy and enjoyment (
5,
8,
32).
However, in line with previous research (
6), no significant difference was observed between the two groups in cardiorespiratory endurance, agility and muscle strength. Shy children may have different reactions to physical activity depending on their unique physical and psychological characteristics, resulting in varying results in cardiorespiratory fitness. Shy children experience higher levels of anxiety compared to their peers (
11), leading to potential physiological implications (
33). An anxious individual's elevated heart rate and blood pressure lead to decreased efficiency in physical activities, resulting in reduced cardiorespiratory endurance. Anxiety can also cause shallow and fast breathing, which can decrease oxygen supply to the muscles and lower cardiorespiratory endurance. Anxiety-induced muscle tension may be the next factor to negatively impact cardiovascular endurance. Long-term stress changes metabolism by enhancing the degradation of glycogen and fat reserves (
34). Although it can offer a fast energy boost, it also results in the exhaustion of these reserves, leading to premature fatigue during endurance exercises. Moreover, the psychological impact of shyness-induced anxiety should not be overlooked. Experiencing stress or anxiety can increase the feeling of effort and discomfort during exercise. A higher sense of exertion can lead to reduced capacity for physical activity and earlier cessation of exercise, ultimately reducing endurance. Anxiety can hinder focus and concentration (
35), making it challenging to uphold proper form and technique while working out. Inefficient form and technique can lower movement efficiency, requiring more energy and reducing endurance. The same could apply to the lack of significance in agility and strength. In addition, the humanistic approach's structure might not offer enough intensity and frequency to enhance agility and muscle strength, and it may necessitate utilizing weights to see improvements in muscle strength. It is also possible that the measurement instruments utilized in the current research failed to pick up on subtle advancements and the evaluation circumstances were not conducive for shy children. A humanistic approach focuses more on enjoyment, personal growth, and social interaction, which may not provide the necessary conditions for improvements in cardiorespiratory endurance, agility, and muscular strength. To improve cardiorespiratory endurance, there needs to be regular and structured exercises of relatively high intensity that are followed seriously. Shy children tend to gravitate towards activities that align with their skills, leading to less intense physical activity that is important for strengthening cardiovascular endurance. Possibly merging clinical therapies with humanistic-based physical activities could be an all-encompassing approach to assisting children dealing with shyness.
In this study, it was shown that an educational program with an emphasis on individual and social responsibility, promoted the daily physical activity of the experimental group, which is in line with past research (
6-
8). In any case, flexibility and muscle endurance in shy children significantly improved through the presentation of physical exercises with a humanistic approach in this study. Increased flexibility results in a wider range of motion within the joints, which ultimately makes participating in physical activities more effortless and enjoyable. Children who are shy may feel more comfortable participating in physical activities if they have flexible muscles and joints that are less likely to get injured. Engaging in flexibility exercises assists in developing a deeper comprehension of body mechanics and movements, resulting in heightened body awareness and self-confidence. As children enhance their flexibility, they experience a feeling of achievement that can enhance their self-confidence and motivate them to engage more in physical activities. Children can engage in physical activities for a longer duration without feeling fatigued thanks to improved muscle endurance, which makes exercise more pleasant and less daunting. Enhanced muscle endurance plays a key role in overall physical preparedness, which is essential for maintaining healthy growth and development. Due to the negative relationship between shyness, sports participation and physical fitness (
18,
25), the findings of the current study are crucial as they can help teachers and coaches better understand and assist this group of children.