Abstract
Manual therapies, directed to the knee and lumbopelvic region, have demonstrated the ability to improve neuromuscular quadriceps function in individuals with knee pathology. It remains unknown if manual therapies may alter impaired spinal reflex excitability, thus identifying a potential mechanism in which manual therapy may improve neuromuscular function following knee injury. Aim: To determine the effect of local and distant mobilisation/manipulation interventions on quadriceps spinal reflex excitability. Methods: Seventy-five individuals with a history of knee joint injury and current quadriceps inhibition volunteered for this study. Participants were randomised to one of five intervention groups: lumbopelvic manipulation (grade V), lumbopelvic manipulation positioning (no thrust), grade IV patellar mobilisation, grade I patellar mobilisation, and control (no treatment). Changes in spinal reflex excitability were quantified by assessing the Hoffmann reflex (H-reflex), presynaptic, and postsynaptic excitability. A hierarchical linear-mixed model for repeated measures was performed to compare changes in outcome variables between groups over time (pre, post 0, 30, 60, 90min). Results: There were no significant differences in H-reflex, presynaptic, or postsynaptic excitability between groups across time. Conclusions: Manual therapies directed to the knee or lumbopelvic region did not acutely change quadriceps spinal reflex excitability. Although manual therapies may improve impairments and functional outcomes the underlying mechanism does not appear to be related to changes in spinal reflex excitability.
| Original language | English |
|---|---|
| Pages (from-to) | 299-305 |
| Number of pages | 7 |
| Journal | Manual Therapy |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2014 |
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All Science Journal Classification (ASJC) codes
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Manual therapy directed at the knee or lumbopelvic region does not influence quadriceps spinal reflex excitability. / Grindstaff, Terry L.; Pietrosimone, Brian G.; Sauer, Lindsay D.; Kerrigan, D. Casey; Patrie, James T.; Hertel, Jay; Ingersoll, Christopher D.
In: Manual Therapy, Vol. 19, No. 4, 2014, p. 299-305.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Manual therapy directed at the knee or lumbopelvic region does not influence quadriceps spinal reflex excitability
AU - Grindstaff, Terry L.
AU - Pietrosimone, Brian G.
AU - Sauer, Lindsay D.
AU - Kerrigan, D. Casey
AU - Patrie, James T.
AU - Hertel, Jay
AU - Ingersoll, Christopher D.
PY - 2014
Y1 - 2014
N2 - Manual therapies, directed to the knee and lumbopelvic region, have demonstrated the ability to improve neuromuscular quadriceps function in individuals with knee pathology. It remains unknown if manual therapies may alter impaired spinal reflex excitability, thus identifying a potential mechanism in which manual therapy may improve neuromuscular function following knee injury. Aim: To determine the effect of local and distant mobilisation/manipulation interventions on quadriceps spinal reflex excitability. Methods: Seventy-five individuals with a history of knee joint injury and current quadriceps inhibition volunteered for this study. Participants were randomised to one of five intervention groups: lumbopelvic manipulation (grade V), lumbopelvic manipulation positioning (no thrust), grade IV patellar mobilisation, grade I patellar mobilisation, and control (no treatment). Changes in spinal reflex excitability were quantified by assessing the Hoffmann reflex (H-reflex), presynaptic, and postsynaptic excitability. A hierarchical linear-mixed model for repeated measures was performed to compare changes in outcome variables between groups over time (pre, post 0, 30, 60, 90min). Results: There were no significant differences in H-reflex, presynaptic, or postsynaptic excitability between groups across time. Conclusions: Manual therapies directed to the knee or lumbopelvic region did not acutely change quadriceps spinal reflex excitability. Although manual therapies may improve impairments and functional outcomes the underlying mechanism does not appear to be related to changes in spinal reflex excitability.
AB - Manual therapies, directed to the knee and lumbopelvic region, have demonstrated the ability to improve neuromuscular quadriceps function in individuals with knee pathology. It remains unknown if manual therapies may alter impaired spinal reflex excitability, thus identifying a potential mechanism in which manual therapy may improve neuromuscular function following knee injury. Aim: To determine the effect of local and distant mobilisation/manipulation interventions on quadriceps spinal reflex excitability. Methods: Seventy-five individuals with a history of knee joint injury and current quadriceps inhibition volunteered for this study. Participants were randomised to one of five intervention groups: lumbopelvic manipulation (grade V), lumbopelvic manipulation positioning (no thrust), grade IV patellar mobilisation, grade I patellar mobilisation, and control (no treatment). Changes in spinal reflex excitability were quantified by assessing the Hoffmann reflex (H-reflex), presynaptic, and postsynaptic excitability. A hierarchical linear-mixed model for repeated measures was performed to compare changes in outcome variables between groups over time (pre, post 0, 30, 60, 90min). Results: There were no significant differences in H-reflex, presynaptic, or postsynaptic excitability between groups across time. Conclusions: Manual therapies directed to the knee or lumbopelvic region did not acutely change quadriceps spinal reflex excitability. Although manual therapies may improve impairments and functional outcomes the underlying mechanism does not appear to be related to changes in spinal reflex excitability.
UR - http://www.scopus.com/inward/record.url?scp=84902117879&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902117879&partnerID=8YFLogxK
U2 - 10.1016/j.math.2014.03.010
DO - 10.1016/j.math.2014.03.010
M3 - Article
VL - 19
SP - 299
EP - 305
JO - Musculoskeletal Science and Practice
JF - Musculoskeletal Science and Practice
SN - 2468-8630
IS - 4
ER -