Lower Extremities
Lower Extremities - Related Videos
01:22
Absolute and Local Extreme Values
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2026
The highest and lowest values of a function, relative to a reference axis, are known as extreme values. These include absolute maximum and absolute minimum values, which represent the highest and lowest points the function reaches across its entire domain. Within a restricted portion of the function, the highest and lowest values are referred to as local maximum and local minimum values, respectively.Periodic functions, such as sine and cosine, show extreme values at infinitely many points due...
07:44
Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
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Cited by 1 •
2016
The paper describes a method for producing extreme nanowires by melt infiltration into carbon nanotubes and how 1D systems may be characterized and investigated using Resonance Raman Spectroscopy to determine vibrational and optical excitation energies.
06:45
Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
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Cited by 4 •
2023
Traditionally, lower extremity deep venous thrombosis (DVT) is diagnosed by radiology-performed venous duplex ultrasound. Providers appropriately trained in focused point-of-care ultrasound (POCUS) can perform a rapid bedside examination with high sensitivity and specificity in critically ill patients. We describe the scanning technique for focused POCUS DVT lower extremity examination.
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
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Cited by 5 •
2013
The laser heated diamond anvil cell combined with synchrotron micro-diffraction techniques allows researchers to explore the nature and properties of new phases of matter at extreme pressure and temperature (PT) conditions. Heterogeneous samples can be characterized in situ under high pressure by 2D mapping and combined powder, single-crystal and multigrain diffraction approaches.
08:23
Standing Neurophysiological Assessment of Lower Extremity Muscles Post-Stroke
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Cited by 4 •
2021
This protocol describes the process for performing a neurophysiological assessment of the lower extremity muscles, tibialis anterior and soleus, in a standing position using TMS in people post-stroke. This position provides a greater probability of eliciting a post-stroke TMS response and allows for the use of reduced stimulator power during neurophysiological assessments.
FAQs
Movement depends on coordinated action among these structures rather than on any single component. Bones provide support, joints permit controlled motion, and muscles generate force through tendons, while ligaments help stabilize joints. Together, they allow the lower extremities to bear body weight and contribute to standing, balance, and locomotion.
Nerves and blood vessels add neurologic and vascular dimensions to the assessment. Nerve dysfunction can affect lower-extremity function, while vascular impairment may compromise the structures involved in mobility. Including both systems helps clinicians evaluate problems beyond bones and joints and recognize abnormalities that may influence movement, independence, and overall function.
Abnormalities in the bones, joints, muscles, tendons, ligaments, nerves, or blood vessels can alter how the body supports weight and coordinates movement. These changes may appear as impaired gait, reduced balance, or difficulty with locomotion. Clinical attention to movement therefore helps connect structural or functional findings with their effects on mobility.
Each approach provides different information. Physical examination evaluates clinical findings in the lower extremities, gait assessment shows how abnormalities affect movement, and diagnostic imaging can reveal structural problems such as fractures or joint disease. Used together, these methods help identify the source and functional consequences of abnormalities and support decisions about treatment or rehabilitation.
Clinical assessment examines findings relevant to support, movement, and function across the pelvis, thigh, knee, leg, ankle, and foot. Depending on the concern, clinicians may evaluate possible fractures, joint disease, muscle or tendon injuries, vascular impairment, and neurologic dysfunction. The results help determine how an abnormality affects mobility and guide subsequent care.
Gait assessment is useful when clinicians need to understand how a lower-extremity abnormality affects locomotion, balance, or independence. Observing movement complements findings from the physical examination and can show functional consequences that may not be apparent from anatomy alone. This information can help guide treatment, rehabilitation planning, and injury-prevention efforts.
Diagnostic imaging can reveal abnormalities associated with conditions such as fractures and joint disease. It provides structural information that complements the physical examination and gait assessment, which focus more directly on clinical findings and movement. By combining these sources of evidence, clinicians can better characterize a problem and guide treatment or rehabilitation.
Evaluation identifies abnormalities and clarifies their effects on mobility, independence, and overall function. Findings from examination, gait assessment, and imaging can guide rehabilitation by showing which clinical or structural problems require attention. The same information supports injury prevention by helping clinicians recognize factors that interfere with safe movement and coordinated weight bearing.