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May 10, 2026Open Access

Assessment of the objective, subjective quality and perceived impact of a group of mobile applications used for the development of body flexibility

Key Points

This study evaluates the objective and subjective quality, as well as the perceived impact, of mobile applications for body flexibility.
Delphi research method was employed to assess five mobile applications via expert consensus.
Evaluation involved a panel of physiotherapists, fitness professionals, and flexibility specialists.
The user version of the Mobile Application Rating Scale (uMARS) was used for assessment.
The 'Exercises for children at home' app had the highest objective quality, praised for its interactivity and graphics.
The 'Stretching' app received top ratings in subjective quality due to customizable features and reminders.
'Stretching exercises, flexibility training' was recognized for its perceived impact, offering structured plans that improved users' flexibility and posture.

Abstract

Body flexibility is crucial for physical performance, injury prevention and health maintenance. With the rise of mobile applications, it is necessary to review the quality of their content and determine if they really do what they offer. The purpose of the study was to evaluate the objective, subjective quality as well as the perceived impact of a group of mobile applications used in the development of body flexibility. The Delphi research was adopted, allowing evaluation of five mobile applications through the consensus by a panel of experts. This panel included physiotherapists, fitness professionals, flexibility specialists and sports professionals. The instrument used was the user version of the Mobile Application Rating Scale (uMARS). The results showed that the “Exercises for children at home” app excelled in terms of objective quality, highlighting its interactivity and intuitive graphics. The “Stretching” application was the best rated in subjective quality, offering customizable options and configurable reminders that were highly appreciated by users. Meanwhile, “Stretching exercises, flexibility training” stood out for its perceived impact, providing structured training plans that significantly improved the flexibility and postural health of users. In conclusion, it is necessary to carry out thorough reviews of the impact and quality of mobile applications developed in the field of sports and other areas of knowledge, emphasizing the importance of these technological resources in promoting the health and well-being of people.

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