Related Experiment Video
Updated: Jun 4, 2025

The use of Biofeedback in Clinical Virtual Reality: The INTREPID Project
Published on: November 12, 2009
Development, Validation, and Usability of a Virtual Game for Consciousness and Relaxation of the Pelvic Floor Muscles
Robson Arruda Souza1,2, Alberto Galvão de Moura-Filho1,2, Renato S Melo1,2
1Department of Physical Therapy, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil.
Background:
Applicability of the virtual games has been increasingly added to rehabilitation treatments, including women's health interventions.
Objective:
To develop a virtual interface designed to increase consciousness and relax the pelvic floor muscles, validate its content and appearance, and check the level of usability and satisfaction.
Methods:
Physiotherapy specialists with experience in pelvic floor rehabilitation and database research were consulted to define the content. Thus, 13 physiotherapists specialized in the area participated in the content and appearance validation of the virtual game with a minimum agreement level of 80%. An evaluation of the usability level was conducted through MATCH (Checklist for Evaluation of the Usability of Applications for Touchscreen Phones) and the satisfaction level through a visual analog scale.
Results:
The game is presented in two-dimensional (2D) configuration and is based on parachuting. The main activity required is muscle relaxation to open the parachute and descend to the target. The goal is to reach the target by traveling as long as possible with the parachute open. A physical exercise protocol from the American College of Sports Medicine was used to define the contraction/relaxation time. A total of 4 of the 15 items which represented the content and appearance for validation needed a second round to reach the desired level of agreement. The game showed a high level of usability M: 63.04 (±5.28) and the level of satisfaction of the virtual game showed an average of 9.7 (±0.55).
Conclusion:
The virtual game developed for the pelvic floor muscle relaxation training showed content validity and adequate appearance and a high level of usability and satisfaction.
Related Concept Videos
Muscles of the Pelvic Floor and Perineum
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
The Micturition Reflex
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...

