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The deep longitudinal subsystem
Continuing Education2 Credits

Deep Longitudinal Subsystem (DLS)

Deep longitudinal subsystem (DLS). The role and function of the fibularis (peroneal) muscles, erector spinae, sacrotuberous ligament, and biceps femoris in the stability, strength, and power produced between the lower and upper body. Summary of the function, arthrokinematics, integration between individual subsystems, behavior in postural dysfunction, exercise selection for the DLS, and examples of subsystem exercises and progressions.

Course Description: Deep Longitudinal Subsystem

This course describes the deep longitudinal subsystem (DLS). The deep longitudinal subsystem may also be referred to as the deep longitudinal sling, deep longitudinal system, deep posterior subsystem, deep posterior sling, deep posterior myofascial synergy, and is similar to the concepts of body slings, muscle synergies, myofascial lines, myofascial trains, anatomy trains, superficial back line, spiral line, and the serape effect. This course covers a detailed analysis of the posterior oblique subsystem (sling) including anatomy, research, integration techniques and a sample routine.

The Deep Longitudinal Subsystem (DLS) is comprised of:

The concepts and techniques described in this course may be particularly beneficial for neuromuscular re-education, coordination, motor pattern integration, whole-body strength, functional strength, and sports performance. Sports medicine professionals (personal trainers, fitness instructors, physical therapists, massage therapists, chiropractors, occupational therapists, athletic trainers, etc.) should consider adding these exercises to their repertoire to improve the outcomes of their integrated exercise programs, sports performance programs, and therapeutic (rehabilitation) interventions.

For additional self-administered joint mobilization techniques check out:

Study Guide: Deep Longitudinal Subsystem


Research Corner

More on Function

Compensation and Models of Postural Dysfunction:



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