The effect of general anesthesia on passive-knee-extension range of motion

T. P. Dompier; C. R. Denegar; W. E. Buckley; S. J. Miller; J. Hertel; W. J. Sebastianelli

doi:10.1123/jsr.10.4.257

The effect of general anesthesia on passive-knee-extension range of motion

T. P. Dompier, C. R. Denegar, W. E. Buckley, S. J. Miller, J. Hertel, W. J. Sebastianelli

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Context: Flexibility is promoted as essential to physical fitness, but the mechanisms limiting it are not fully understood. Objective: To investigate the effects of general anesthesia on hamstring extensibility. Design: Repeated measures. Setting: Hospital operating room. Subjects: Eight volunteers undergoing orthopedic surgeries unrelated to the tested limb. Measurement: Three measurements of passive knee extension (PKE) taken before and after administration of general anesthesia. The force applied during the measurements was consistent between trials. Results: Mean PKE range of motion (ROM) was significantly greater before anesthesia (75.0° ± 11.8°) than after (53.3° ± 17°; t = 5.6, P < .001). Pearson product correlation revealed a significant correlation between the mean difference in PKE ROM between treatment conditions and subjects' body weight (r = .91, P < .05). Conclusions: The findings might be attributable to diminished neural drive to the antagonist muscle groups and suggest a more complex neural control of flexibility than simply neural drive to an agonist muscle.

Original language	English (US)
Pages (from-to)	257-266
Number of pages	10
Journal	Journal of Sport Rehabilitation
Volume	10
Issue number	4
DOIs	https://doi.org/10.1123/jsr.10.4.257
State	Published - 2001

All Science Journal Classification (ASJC) codes

Biophysics
Orthopedics and Sports Medicine
Physical Therapy, Sports Therapy and Rehabilitation
Rehabilitation

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10.1123/jsr.10.4.257

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title = "The effect of general anesthesia on passive-knee-extension range of motion",

abstract = "Context: Flexibility is promoted as essential to physical fitness, but the mechanisms limiting it are not fully understood. Objective: To investigate the effects of general anesthesia on hamstring extensibility. Design: Repeated measures. Setting: Hospital operating room. Subjects: Eight volunteers undergoing orthopedic surgeries unrelated to the tested limb. Measurement: Three measurements of passive knee extension (PKE) taken before and after administration of general anesthesia. The force applied during the measurements was consistent between trials. Results: Mean PKE range of motion (ROM) was significantly greater before anesthesia (75.0° ± 11.8°) than after (53.3° ± 17°; t = 5.6, P < .001). Pearson product correlation revealed a significant correlation between the mean difference in PKE ROM between treatment conditions and subjects' body weight (r = .91, P < .05). Conclusions: The findings might be attributable to diminished neural drive to the antagonist muscle groups and suggest a more complex neural control of flexibility than simply neural drive to an agonist muscle.",

author = "Dompier, {T. P.} and Denegar, {C. R.} and Buckley, {W. E.} and Miller, {S. J.} and J. Hertel and Sebastianelli, {W. J.}",

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language = "English (US)",

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T1 - The effect of general anesthesia on passive-knee-extension range of motion

AU - Dompier, T. P.

AU - Denegar, C. R.

AU - Buckley, W. E.

AU - Miller, S. J.

AU - Hertel, J.

AU - Sebastianelli, W. J.

PY - 2001

Y1 - 2001

N2 - Context: Flexibility is promoted as essential to physical fitness, but the mechanisms limiting it are not fully understood. Objective: To investigate the effects of general anesthesia on hamstring extensibility. Design: Repeated measures. Setting: Hospital operating room. Subjects: Eight volunteers undergoing orthopedic surgeries unrelated to the tested limb. Measurement: Three measurements of passive knee extension (PKE) taken before and after administration of general anesthesia. The force applied during the measurements was consistent between trials. Results: Mean PKE range of motion (ROM) was significantly greater before anesthesia (75.0° ± 11.8°) than after (53.3° ± 17°; t = 5.6, P < .001). Pearson product correlation revealed a significant correlation between the mean difference in PKE ROM between treatment conditions and subjects' body weight (r = .91, P < .05). Conclusions: The findings might be attributable to diminished neural drive to the antagonist muscle groups and suggest a more complex neural control of flexibility than simply neural drive to an agonist muscle.

AB - Context: Flexibility is promoted as essential to physical fitness, but the mechanisms limiting it are not fully understood. Objective: To investigate the effects of general anesthesia on hamstring extensibility. Design: Repeated measures. Setting: Hospital operating room. Subjects: Eight volunteers undergoing orthopedic surgeries unrelated to the tested limb. Measurement: Three measurements of passive knee extension (PKE) taken before and after administration of general anesthesia. The force applied during the measurements was consistent between trials. Results: Mean PKE range of motion (ROM) was significantly greater before anesthesia (75.0° ± 11.8°) than after (53.3° ± 17°; t = 5.6, P < .001). Pearson product correlation revealed a significant correlation between the mean difference in PKE ROM between treatment conditions and subjects' body weight (r = .91, P < .05). Conclusions: The findings might be attributable to diminished neural drive to the antagonist muscle groups and suggest a more complex neural control of flexibility than simply neural drive to an agonist muscle.

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The effect of general anesthesia on passive-knee-extension range of motion

Abstract

All Science Journal Classification (ASJC) codes

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