Slump test: sensory responses in asymptomatic subjects

Area of Science:

• Neurology
• Orthopedics
• Physical Therapy

Background:

• The Slump Test is a common clinical assessment for leg and back pain.
• Understanding normative responses in asymptomatic individuals is crucial for accurate diagnosis.

Purpose of the Study:

• To establish normative sensory responses to the Slump Test in subjects without leg or back pain.
• To provide a reference for interpreting Slump Test results in clinical practice.

Main Methods:

• Eighty-four asymptomatic subjects underwent a standardized Slump Test procedure.
• Sensory responses (prevalence, intensity, location, nature) were recorded at each test stage: Slumped Sitting (SS), Knee Extension (KE), Ankle Dorsiflexion (AD), and Cervical Extension (CE).

Main Results:

• Nearly all subjects (97.6%) reported sensory responses during the test.
• Response prevalence peaked at Knee Extension (94%) and Ankle Dorsiflexion (97.6%), with intensity increasing through Ankle Dorsiflexion.
• Responses, often described as "stretch" or "tight," were typically located in the posterior leg and resolved with Cervical Extension, suggesting a neurogenic origin.

Conclusions:

• The Slump Test elicits predictable neurogenic responses in asymptomatic individuals.
• Established normative data can help differentiate between normal physiological responses and those indicative of pathology.
• This study provides essential reference data for clinicians evaluating patients with leg and back pain.