Response of lumbar paraspinal muscles spindles is greater to spinal manipulative loading compared with slower loading under length control

Abstract

The results indicate that the duration and amplitude of a spinal manipulation elicit a pattern of discharge from paraspinal muscle spindles different from slower mechanical inputs. Clinically, these parameters may be important determinants of an HVLA-SM's therapeutic benefit.

The Effect of Cervical Spine Manipulation on Postural Sway in Patients With Nonspecific Neck Pain

“…This is supported by observations that spinal manipulation is associated with changes in both central and peripheral nervous system activity (Dishman & Burke, 2003;Dishman, Greco, & Burke, 2008;Haavik-Taylor & Murphy, 2007b. It has been hypothesised that these changes are the product of reduced nociceptive activity and a synchronous barrage of afferent input produced by direct activation of peripheral receptors within the paraspinal structures (Maigne & Vautravers, 2003;Pickar, 2002;Pickar & 40 Bolton, 2012;Pickar, Sung, Kang, & Ge, 2007;Triano, 2001). Concurrent measurements of improved proprioceptive performance and decreased pain levels lends support to this theory …”

“…These findings suggest that spinal manipulation results in a 45 relatively synchronous, high frequency, barrage of sensory input from the activation of these receptors, as well as the physical event of the movement itself. This would all occur over the very brief (<150 ms) duration of the manipulative thrust (Pickar, 2002;Pickar et al, 2007).…”

The basis for spinal manipulation: Chiropractic perspective of indications and theory

“…However, a number of chiropractic practitioners, educators, and researchers challenge this fundamental assumption (Huijbregts, 2007;Keating et al, 2005). Pickar et al have demonstrated SM loading effects in cats without targeting a predetermined mechanical derangement (Pickar et al, 2007;Pickar and Kang, 2006). Chiradejnant et al examined whether clinician-selected mobilization techniques were more effective in relieving low back pain than randomly-selected mobilization techniques (Chiradejnant et al, 2003).…”

Acceleration of clinician hand movements during spinal manipulative therapy

“…Although most commonly associated with the chiropractic profession, an increasing number of allied health care providers such as physicians, physiotherapists, osteopaths and orthopedic specialists are also incorporating SMT into their practices (Symons et al, 2002;Tsung et al, 2005;Pickar et al, 2007).…”

“…force) or the body's response to such an input (eg. vertebral displacement) Kirstukas & Backman, 1999;Keller et al, 2006b;Keller et al, 2006a;Colloca et al, 2006;Triano, 2001;Solinger, 2000;Keller & Colloca, 2002;Sung et al, 2005;Dishman et al, 2005;Pickar & Kang, 2006;Pickar et al, 2007;). …”