## 5 Conclusions  
Consequently, all examined physiological variables were found to be higher for AVGs than the resting condition, and the AVGs played were shown to be enjoyable. According to ACSM criteria, three of AVGs (Fruit Ninja AVG, Just Dance AVG, and Shape Up Muscle AVG) were defined as moderate PA (MET 3.0-5.9; ACSM [35]), and two of them (Shape Up Cardio AVG, and Fighter Within AVG) were defined as vigorous PA (MET 6.0-8.7; ACSM [35]) for college students. Contrary to previous studies conducted with classical continuous exercise [54], no negative correlation was found between RPE and enjoyment, similar to the results of intermittent exercise [24; 53]. The present study demonstrated that even if the energy consumption of different AVGs is similar, it can be different the relative contribution of carbohydrates and lipids to overall energy expenditure when evaluated in terms of RER.  
Based on the current findings, young adults can choose a game by knowing the game's physiological responses and amount of burned calories, e.g., in the range of 80-150 kcal for 15 min. When AVGs are used as PA, it could be possible to exercise vigorously and have more fun. This could support ensuring the continuity of participation of PA. Using this knowledge, exergaming stations can be installed as recreational areas in any location where the AVG systems can be applied. Also, it can offer an attractive and effective opportunity to participate in PA with different game alternatives. Furthermore, young adults, especially college students, may choose to buy AVG equipment instead of sedentary-based video games, minimizing physical inactivity and increasing enjoyable PA.  
Innovative approaches are needed to address the societal problem of sedentary behavior and physical inactivity, maintain public health, and prevent chronic diseases. Traditional forms of physical activities such as walking, running, and cycling have proven the physiological benefits. However, technology-based and funny exercise models can also play an effective role in participating and maintaining the PA.  
**Author Contributions:** Conceptualization, C.A. and H.C.-A.; methodology, C.A. and H.G.-A.; software, C.A.; validation, C.A. and H.C.-A.; formal analysis, C.A.; investigation, C.A.; resources, C.A.; data curation, C.A.; writing--original draft preparation, C.A.; writing--review and editing, H.C.-A.; visualization, C.A. and H.C.-A.; supervision, H.C.-A.; project administration, C.A. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
The study was conducted in accordance with the Declaration of Helsinki and approved by the Institutional Review Board of Eskisehir Technical University (IRB protocol number 14411 and date of approval 27 May 2019).  
Informed Consent Statement: Informed consent was obtained from all subjects involved in the study. Written informed consent has been obtained from the participants to publish this paper if applicable.  
The data are not publicly available due to the participants' privacy. The data presented in this study are available on request from the corresponding author.  
We extend our gratitude to the students of Eskisehir Technical University for their participation in this research, which is based on the Scientific Research Project (19 ADP184) of Eskisehir Technical University.  
The authors declare no conflict of interest.