## 1 Introduction  
Cardiac arrest (CA) is an issue for infants around the world, which causes undesirable morbidity and mortality rates. Subjects who have CA need instant cardiopulmonary trans resuscitation (CPR) to save their lives. The purpose of CPR is to supply vital organs with sufficient oxygen-rich blood [1]. It is a first aid technique that allows the prevention of physiological damage while awaiting the arrival of more advanced medical intervention. It is essential to perform CPR as quickly after arrest as possible, because when cardiac arrest occurs, oxygen is no longer circulated to the brain tissues, which will result in the loss of brain function [1]. Other muscle tissues in the body are considered to be regenerative, unlike brain tissues. The CPR process involves performing alternating chest compression (CC) and artificial ventilation to physically preserve the full function of the brain of a subject who has cardiac arrest [1, 2, 3]. It is essential to increase the cardiac arrest survival rate of infant populations. Therefore, high-quality CPR is a significant factor in controlling the survival rate. When high-quality infant CPR is performed, morbidity and complications are substantially reduced. Hence, in terms of increasing the infant survival rate from cardiac arrest, significant studies and research has been undertaken by specialists working in CPR, who have presented CPR standards and recommendations. These standards and recommendations provide a reliable information system to supervise and document the measured quality of CC [4]. There are two types of compression techniques taught when delivering infant CPR. The Two-Finger (TF) and the Two-Thumb (TT) technique [4; 5; 6], as shown in Figure 1. The TT technique is achieved by squeezing the thorax between the two thumbs [7]. The TF technique is achieved by placing the two fingers above the lower third of the sternum and applying chest compression [6]. Thus, the only differences between the two techniques are the position of the hand. Different researchers have evaluated the effectiveness of these techniques using animal surrogates [8; 9] and infant CPR models [5; 10; 11] These studies showed that performing the TT technique when delivering CPR reduces the rescuer fatigue compared to the TF technique [10]. Thus, the TT technique was advised for performing infant CPR [5; 6; 7; 8; 9; 10; 11]. The American Heart Association (AHA) and the International Liaison Committee on Resuscitation (ILCOR) have chosen the TT technique for delivering infant CPR [12]. The CPR standards are recommended by the AHA guidelines [12; 13; 14] and consider the key factors to assess the CPR quality such as: chest compression depths, chest release force, chest compression rate, and compression duty cycle. Those individuals who apply the CPR process must secure a recognized set of skills in delivering successful CPR that could save a subject's life [14; 15]. Pediatric CPR differs from adult CPR because children are anatomically and physiologically different from adults [16]. In infants, cardiac arrest is not considered to be the only reason for which CPR needs to be delivered [17]. Also both hypoxia, which is \"deficiency in the amount of O2 reaching tissues\", and asphyxia (suffocation) are considered to be reasons for delivering of CPR [13; 17]. It is challenging to identify the cause as well as the effect of infant cardiac arrest. Thus, CPR is considered to be a more difficult skill to perform on an infant or young child than adult CPR. Therefore, a training method is required to educate people about infant CPR techniques to improve the quality and rate of CPR success on infants suffering from CA [14; 18]. For CPR to be efficient, and training to be consistent, recommended standards should be achieved. It is believed that instantaneous performance feedback could affect the performance of chest compression quality during simulated infant CPR. A study by [PERSON] et al. [19], [PERSON] et al. [20], and [PERSON] et al.