A report of the World Health Organization pointed out that from 2020 to 2030, due to the lack of physical exercise, nearly 500 million people worldwide will suffer from heart disease, obesity, diabetes and other non-communicable diseases [1], and the promotion of physical health of young people is an important part of the strategy of fitness for all and a strong country in sports, and it has always been a hotspot and a focus of attention for the Chinese government, the society, and academia and so on. The country has taken a number of initiatives to promote the development of youth physical health, in recent years, the development of student physical health is still unsatisfactory, the main crux of the problem still lies in the insufficiency of adolescents to participate in physical activity on a continuous basis [2].Adhering to long-term regular physical exercise is a specific interpretation of the health concept of ‘lifelong sports’ and a prerequisite for obtaining ideal exercise results. The university period is the transition from adolescence to adulthood [3], the first major transition from adolescence to early adulthood, and the last stage of college students to society [4]. The physical health of college students not only concerns personal and family harmony, but also determines social development and the future of the country. The implementation of the ‘Healthy China 2030’ planning programme, the National Health and Fitness Programme and the National Physical Fitness Standard for Students has improved and up graded the physical fitness of college students at school.However, due to the influence of individual cognition and other internal factors, a considerable portion of college students who have experienced exercise stress events will produce negative exercise tendencies such as withdrawal and avoidance [5, 6], and even more than half of them gradually quit physical exercise after finishing their physical education studies due to the lack of exercise atmosphere and other external factors [7], which brings a great challenge to the construction of a strong sports country and a healthy China, so in-depth investigation into the mechanisms influencing college students' sustained participation in physical education is imminent. Therefore, an in-depth investigation into the influence mechanisms affecting college students' sustained participation in physical activity is imminent. The successful experience of existing studies tells us that simply exploring the direct influence of individual internal or external factors on exercise adherence may fall into the misunderstanding of voluntarism or environmental determinism.Therefore, from the perspective of the interaction between the internal psychology of individuals and the external environment, based on social learning theory, social cognitive theory, expected value theory, cognitive decision-making theory of exercise adherence, embodied cognitive theory, etc., the present study explored the influencing mechanism of college students' exercise adherence based on the multiple interactive effects of exercise self-efficacy, subjective exercise value, subjective exercise experience and exercise atmosphere, which can help to clarify many potential causative factors of exercise adherence. This study will help to clarify the potential causative factors of exercise adherence, which will not only help to scientifically guide college students to establish good exercise habits, but also help them to obtain long-term exercise benefits.
Social learning theory suggests that the process of human social learning is the result of the interaction of behaviour, cognition and environment [8]. Exercise adherence is the behavioural state or tendency of an individual to maintain long-term, regular physical exercise activities based on physical exercise participation [9]. In other words, exercise adherence is a state in which the exercise subject maintains exercise based on the cognitive basis of his or her own behaviour and under the interaction of external environment, atmosphere and other variables.Exercise atmosphere is the supportive atmosphere of the social and natural environments for individuals to participate in physical activities, which plays an important role in exercise behaviour [10, 11]. Research has shown that a good exercise atmosphere can help eliminate negative self-experience, increase positive experience, develop social psychology, and promote physical activity behaviour [12]; a good exercise atmosphere can provide a positive contextual field for adolescents' adherence to physical activity, which can help the subject to mobilize positive emotional responses, improve environmental adaptability, and then maintain exercise behaviour [13]; a good exercise atmosphere can also help individuals to decide whether to exercise or not to exercise. It can provide a decision-making basis for individuals to decide whether to exercise or not, to mobilise ruminative thinking based on the exercise behaviour and performance of peers around them, and to adhere to the physical activity behaviour under the demonstration and leadership of peers [14]. Accordingly, Hypothesis H1 was proposed that exercise atmosphere can directly influence college students' exercise adherence .
Psychologist Bandura originally proposed that self-efficacy refers to an individual's expectations about his or her ability to operate behaviours in a given situation [15], arguing that expectations mediate cognition and behaviour and are determinants of behaviour. In subsequent related research he made a more precise revision, arguing that self-efficacy refers to an individual's beliefs about his or her ability to successfully operate behaviours directed towards a desired outcome in a particular domain [16], At the beginning of the 19th century he proposed the Social Cognitive Theory (SCT) that explains human psychological functioning, which suggests that there is a triadic reciprocal interaction between behaviour (B), person (P) and environment (E). This leads to the conclusion that self-efficacy, which is based on the extent to which the subject of action believes in the future accomplishment of a particular thing or task in a particular situation, environment, or atmosphere, is a factor closest to behavioural change [17] and is an extremely critical mediating variable that predicts behavioural change in an individual, and that it is extremely stable and consistent in its relationship with physically active behaviours [18].As an important cognitive motivational variable of exercise behaviour, the relationship between exercise self-efficacy and change in exercise behaviour has been extensively studied both at home and abroad, and the significant and stable predictive effect of exercise self-efficacy on exercise behaviour has been confirmed by a large number of studies (including different populations from adolescents to the elderly, and from healthy to sick) [19–22]. Exercise self-efficacy has been shown to be an important determinant of change in exercise behaviour, and adherence to physical activity is also better in those with high self-efficacy [23].According to exercise psychology, external stimuli triggered by a specific situation can trigger a series of feelings and experiences, and people always tend to assess future events and decide whether to perform or not to perform behaviours on the basis of existing experiences [24]. Accordingly, H2 is proposed: a good exercise atmosphere can improve exercise self-efficacy, forming a psychological decision-making antecedent variable has a facilitating and strengthening effect on college students' exercise adherence behaviours, in which exercise self-efficacy plays a mediating role between exercise atmosphere and exercise adherence in this pathway.
Expectancy-Value Theory, as a cognitive theory, is one of the dominant theoretical frameworks for studying individual achievement motivation, and scholars such as Vroom (1966), Wigfield and Eccles (2000) have made a number of new extensions and refinements to the theory, which, compared with the earlier theories that emphasised the characteristics of psychological neediness, have taken environmental factors into account. Pointing out that an individual's perception of a task and choice of an action outcome depends not only on his or her own level of cognition, but also on the influences of culture, environment, behaviours, beliefs, and values [25, 26].It also emphasises the role of social cognition in regulating and controlling behaviour, and that individual behaviour can be influenced, regulated and predicted through the perception, anticipation and judgement of the environment by individual social cognitive factors[27], and the exercise value perceptions is the individual's understanding of the benefits of exercise to health, which is mainly dependent on the provision of exercise-related educational resources and the promotion of exercise knowledge (Wu etal.,2021) [28], and the interaction between the individual and the exercise environment (Jafetal.,2023) [29], the more appropriate the exercise environment, the more harmonious the exercise atmosphere, the more enthusiastic individuals are about the pursuit of success, and the easier it is for them to continue to participate in physical activity [30].Exercise atmosphere can influence college students’ perception of exercise value, and students with higher exercise value perception tend to be more active and positive in physical education classes, and they will have certain expectations of themselves based on the standards of their classmates’ and friends’ ability to complete the task, which affects their motivation and behavioural choices, and it has been concluded from the empirical studies that exercise value perception positively predicts adolescents’ participation in physical education and sports [31–33]. Accordingly, we propose H3: Exercise atmosphere affects exercise value perceptions, thus predicting college students' exercise adherence, and exercise value perceptions mediate the relationship between exercise atmosphere and exercise adherence.
Adherence to exercise behaviour is often influenced by a number of irrational factors, among which Subjective Exercise Experience (SEE) is an important antecedent variable [34], which is an individual's feelings and impressions of past exercise emotions, and is a self-assessment of the exerciser’ s post-exercise experience of positive/negative emotional states and physiological exertion [35].The cognitive decision theory of exercise adherence suggests that natural environments and interpersonal atmospheres can motivate individuals to adhere to exercise on the basis of enriched exercise participation options and improved exercise opportunities [36], and that positive subjective experiences have a significant value-added contribution in this mechanism [37]. On the one hand, natural atmospheres such as venues and equipment predict exercise opportunities, conditions, and satisfaction, which benefit from enriching exercisers' pleasure experiences, feelings, positive emotions, and desire to participate, and serve as an informative memory for decision-making to exercise, making it possible for individuals to maintain regular, frequent, and self-directed exercise [38].On the other hand, the interpersonal atmosphere of friendship and support conveys a kind of emotional care for the subject, which can motivate individuals to display themselves and establish group identity [39], so that exercise adherence becomes a ‘label’ for the subject to ‘restrain’ his/her own behaviours and differentiate from others,and shapes exercise into a habit. Accordingly, we propose H4: subjective exercise experience mediates the relationship between exercise atmosphere and exercise adherence, and a good exercise atmosphere can enhance college students' subjective exercise experience and positively predict exercise adherence.
Related studies have confirmed that a good exercise atmosphere can significantly and positively predict college students’ exercise self-efficacy, and that a good subjective exercise experience can enhance college students’ exercise adherence. There are few empirical studies on self-efficacy and subjective exercise experience at home and abroad. In reality, the degree of excellence that the same person performs in different atmospheres when completing the same task is sometimes completely different, indicating that although people know what they should do, their outward performance may be the same or different, which is the manifestation of self-efficacy and its mechanism of action. Self-efficacy affects the way people think and react emotionally. In the face of potentially dangerous situations such as misfortunes and disasters, self-efficacy determines the individual's psychosomatic processes such as stress, anxiety and depression [40].In the process of interaction with the external environment, people with low self-efficacy are more likely to think too much about their own shortcomings and deficiencies, and exaggerate the actual degree of difficulty, which will produce more worry, anxiety, tension and other psychological pressure and negative emotions, and can not effectively use their ability to achieve the goal; on the contrary, people with high self-efficacy tend to be full of emotion and self-confidence when performing certain behaviours or tasks, focusing their attention on the requirements and solutions of the tasks, and even in the face of difficult situations, they will work harder and be inspired with a strong will to overcome the difficulties, and the likelihood of their success is greater. The achievement or non-achievement of the goal will affect the performer's experience. Based on the above, Hypothesis H5: Exercise atmosphere can influence college students' exercise adherence through exercise self-efficacy and subjective exercise experience, and exercise self-efficacy and subjective exercise experience play a chain mediating role between exercise atmosphere and exercise adherence.
At the end of the 20th century, the theory of embodied cognition proposed by Lakoff et al. argues that cognition is essentially a kind of processing and re-computing of bodily experience, and that the diverse contents of cognitive sources are formed through various types of bodily experiences such as sight, hearing, and touch, etc., and the important role of empirical bodily sensations in cognition is also obvious [41], who argues that the human brain is not the only source of cognitive processes, and that the body is also coupled with the brain under specific scenarios and atmospheres coupled with the brain, and while accomplishing behavioural goals, the body and its perceptions replace the need for complex internal mental representations, creating a mutual embedding between the brain, the body, and the environment. Therefore, the subjective exercise atmosphere is not only influenced by the environmental atmosphere, but also can provide the most intuitive body sensation to form the most realistic experience reserve and value judgement standard, thus influencing individual behavioural choices. Accordingly, H6 is proposed: exercise atmosphere will affect college students’ adherence to physical activity by influencing exercise value perception and subjective exercise experience, i.e.: exercise value perception and subjective exercise experience have a chain mediating role in the process of exercise atmosphere predicting college students’ exercise adherence. The hypothesised model of this study is shown in Fig. 1.