Fig.1. Theoretical Framework

This serves as a tool to help the community understand how simple daily activities,  such as walking, could help them generate electricity. This is especially useful during disasters when the wearers of the piezoelectric footwear can use it to charge essential devices like radios, cell phones, and light bulbs. The footwear prototype of this study could also serve as a motivating force for the shoe industry to make innovations and create footwear that can be a clean alternative source of electricity.

The investigation and findings on the application of piezoelectricity to various floor materials will provide the community and future researchers with valuable information and insight on which floor 

material would be the most efficient and advantageous in producing the greatest amount of electricity. The government could be motivated as well by this study to seek a long-term solution to the concerns with global warming brought on by the nation's coal-based energy system (Fecht, 2021). 

This paper may also function as a tool of understanding on the topic of piezoelectricity as a green alternative source of energy for them to innovate the current approaches being used in the electricity sector. A thorough investigation into the possibility of piezoelectric footwear in energy production on various coefficients of restitution of floor materials advance the society's knowledge of available alternative electricity sources, particularly piezoelectricity, concerning cost, accessibility, and sustainability.

Despite variations in electricity production among materials, the researchers affirm that all tested floor materials generate sufficient electricity to light a single 3mm LED bulb within the required voltage range of 2.5-3.2V. This aligns with the study's objectives, confirming the impact of floor materials on electricity generation and leading to the rejection of the null hypothesis in favor of the alternative hypothesis. The recorded data ranging from 0.007V to 1.186V, notably falling far below the specified operational range of 2.5V-3.2V for a standard 3mm LED light bulb, was still able to light the LED, is an unexpected observation from the data

The results that were obtained in the study shows that there is a relationship between the type of floor material and the vibration produced from stomping the feet indeed has an effect on the generation of electricity. The results suggest that the more inelastic the material is, the more piezoelectricity will be produced. 

The findings of the group compared to previous research in the field indicates that cement was able to help produce more electricity when mechanical pressure is applied; unlike other studies that only focused on the application of piezoelectric sensors on different devices to generate electricity as seen in the study of Naresh et al., (2018); Thakur et al., (2017) & Kaylani et al., (2015). The group findings’ would be beneficial for future scholars who wish to tackle the topic more on piezoelectricity.

The results imply that the type of flooring materials used influences the transmission of voltages. For instance, hard inelastic materials such as concrete transmit vibrations more effectively than less rigid and soft materials like wood and soil, resulting in higher voltage production when feet are stomped on concrete. Despite cement being able to produce more electricity compared to other materials, the researchers can confidently say that regardless of which material produces the most, all the different floor materials were able to produce enough electricity to light a single 3mm LED bulb, with a required voltage range of  2.5-3.2V. 

This level of voltage production was enough to light the LED bulb because of the piezoelectric material's responsiveness and sensitivity to vibrations. With this information, there are limitations that the researchers stumbled upon. One of which was addressing the gap of understanding the trend between the correlation of the coefficient of restitution of the material since the statistical analysis determined that there is no significant difference between the soil and wood floor materials due to lack of evidence.

The research can be further improved by incorporating a storage system for the generated electricity. Through external storage, the electricity produced could be utilized away from the footwear itself to charge other devices, especially in case of an electricity shortage. Studying the relationship between the restitution of the floor material and the amount of voltage produced by the AliPatos footwear concluded that the more inelastic the material used, the more piezoelectricity will be produced when mechanical pressure is applied. The information that this study provided is crucial in inventing devices that use the theory, Piezoelectric effect, since it will add efficiency to the creation of sustainable energy and human activity.

Through the gathered data and results, the researchers concluded that floor materials do indeed have an effect on the generation of electricity. Thus, they rejected the null hypothesis which states that there is no significant difference among the voltages obtained from the three different floor materials tested, giving us the alternative hypothesis stating that there is a significant difference present among the voltages obtained.