Location

Suwanee, GA

Start Date

11-5-2023 1:00 PM

End Date

11-5-2023 4:00 PM

Description

INTRODUCTION: The active straight leg raise (ASLR) test assesses load transfer through the pelvis. During the ASLR, intraabdominal pressure (IAP) rises, increasing the load on the lumbopelvic region. Several studies have shown a correlation between the magnitude of bladder base displacement (BBD) during the ASLR and lumbopelvic instability. Additionally, greater depression of the bladder and pelvic floor muscles is associated with motor control impairments associated with form and force closure. Pelvic stability belts are a common therapeutic intervention for individuals who report pelvic girdle pain. Their mechanism of action is to improve form closure and assist force closure and motor control. Impaired form and force closure mechanisms through the lumbopelvic area are associated poor load transfer, low back pain, sacroiliac pain, stress urinary incontinence and chronic pelvic pain.

OBJECTIVES: This study aimed to observe and determine the impact of the ASLR test with and without a Serola lumbopelvic belt on BBD and participant self-reported level of difficulty score.

METHODS: A convenience sample of fifteen physical therapy students (mean age 25 years) who were previously identified as having lumbopelvic instability were recruited for this study. PCOM's institutional review board approved the study, and each participant provided informed consent. All participants completed a bladder filling protocol via natural diuresis to standardize bladder volumes to allow for bladder and pelvic floor delineation on ultrasound imaging. A Clarius C3 curvilinear wireless ultrasound unit was used for image acquisition with images displayed on an IPAD. The ultrasound transducer was placed suprapublically on the lower abdomen, oriented transversely, and manipulated until a clear image of the bladder base was apparent. A standard script was read to each participant to standardize testing. The magnitude of BBD was captured with cine loops across two testing conditions: the ASLR test without a lumbopelvic belt which was repeated with the participant wearing a belt. Participants also self-reported the level of difficulty for each testing condition. Participants were fitted with the lumbopelvic belt according to manufacturer’s recommendation. The belt tension was standardized using a manometer set to 20mmHG placed between the belt's anterior aspect and the participant's lower abdomen. On-screen calipers identified the lateral and medial aspects of the bladder base. All images were saved for post hoc analysis to determine the magnitude and direction of BBD between both testing conditions.

RESULTS: Descriptive statistics will be reported, and a repeated measures ANOVA will be completed to determine whether there is a statistically significant difference between the means with the level of significance set at p=.05.

CONCLUSION: TBD

Embargo Period

6-27-2023

Comments

Presented by Erin Roberts.

COinS
 
May 11th, 1:00 PM May 11th, 4:00 PM

The effect of a lumbopelvic compression belt on load transfer during the active straight leg test: A proof of concept study using ultrasound imaging

Suwanee, GA

INTRODUCTION: The active straight leg raise (ASLR) test assesses load transfer through the pelvis. During the ASLR, intraabdominal pressure (IAP) rises, increasing the load on the lumbopelvic region. Several studies have shown a correlation between the magnitude of bladder base displacement (BBD) during the ASLR and lumbopelvic instability. Additionally, greater depression of the bladder and pelvic floor muscles is associated with motor control impairments associated with form and force closure. Pelvic stability belts are a common therapeutic intervention for individuals who report pelvic girdle pain. Their mechanism of action is to improve form closure and assist force closure and motor control. Impaired form and force closure mechanisms through the lumbopelvic area are associated poor load transfer, low back pain, sacroiliac pain, stress urinary incontinence and chronic pelvic pain.

OBJECTIVES: This study aimed to observe and determine the impact of the ASLR test with and without a Serola lumbopelvic belt on BBD and participant self-reported level of difficulty score.

METHODS: A convenience sample of fifteen physical therapy students (mean age 25 years) who were previously identified as having lumbopelvic instability were recruited for this study. PCOM's institutional review board approved the study, and each participant provided informed consent. All participants completed a bladder filling protocol via natural diuresis to standardize bladder volumes to allow for bladder and pelvic floor delineation on ultrasound imaging. A Clarius C3 curvilinear wireless ultrasound unit was used for image acquisition with images displayed on an IPAD. The ultrasound transducer was placed suprapublically on the lower abdomen, oriented transversely, and manipulated until a clear image of the bladder base was apparent. A standard script was read to each participant to standardize testing. The magnitude of BBD was captured with cine loops across two testing conditions: the ASLR test without a lumbopelvic belt which was repeated with the participant wearing a belt. Participants also self-reported the level of difficulty for each testing condition. Participants were fitted with the lumbopelvic belt according to manufacturer’s recommendation. The belt tension was standardized using a manometer set to 20mmHG placed between the belt's anterior aspect and the participant's lower abdomen. On-screen calipers identified the lateral and medial aspects of the bladder base. All images were saved for post hoc analysis to determine the magnitude and direction of BBD between both testing conditions.

RESULTS: Descriptive statistics will be reported, and a repeated measures ANOVA will be completed to determine whether there is a statistically significant difference between the means with the level of significance set at p=.05.

CONCLUSION: TBD