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Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms.

Publication ,  Journal Article
Cobian, DG; Koch, CM; Amendola, A; Williams, GN
Published in: J Orthop Sports Phys Ther
December 2017

Study Design Descriptive, prospective single-cohort longitudinal study. Background Though rapid torque development is essential in activities of daily living and sports, it hasn't been specifically tested by most physical therapists or incorporated into rehabilitation programs until late in the treatment process. Little evidence is available on quadriceps torque development capacity before and after arthroscopic knee surgery. Objectives To study knee extensor rate of torque development, contributing mechanisms, and associations with strength and patient-reported outcomes before and during the first 6 weeks after arthroscopic partial meniscectomy. Methods Twenty subjects (mean ± SD age, 42.3 ± 13.7 years; body mass index, 26.6 ± 3.1 kg/m2) were tested before surgery, and at 2 and 5 weeks after surgery. Quadriceps muscle volume, strength, activation, rate of torque development, and patient-reported outcomes were evaluated across the study period. Results Significant side-to-side differences in quadriceps strength and voluntary rate of torque development were observed at each time point (P<.05). Changes in muscle activity were associated with changes in rapid torque development capacity. Side-to-side rate of torque development deficits after surgery were associated with lower patient-reported outcomes scores. Conclusion Diminished rapid torque development capacity is common in arthroscopic meniscal debridement patients. This reduced capacity is associated with an inability to quickly recruit and drive the quadriceps muscles (neural mechanisms) and not muscle atrophy or other peripheral factors tested. Patient-reported outcomes are associated with quadriceps rate of torque development, but not strength or muscle size. Rapid torque development warrants greater attention in rehabilitation. J Orthop Sports Phys Ther 2017;47(12):945-956. Epub 9 Oct 2017. doi:10.2519/jospt.2017.7310.

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Published In

J Orthop Sports Phys Ther

DOI

EISSN

1938-1344

Publication Date

December 2017

Volume

47

Issue

12

Start / End Page

945 / 956

Location

United States

Related Subject Headings

  • Torque
  • Tibial Meniscus Injuries
  • Quadriceps Muscle
  • Prospective Studies
  • Patient Reported Outcome Measures
  • Orthopedics
  • Muscle Strength
  • Meniscectomy
  • Male
  • Longitudinal Studies
 

Citation

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Cobian, D. G., Koch, C. M., Amendola, A., & Williams, G. N. (2017). Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms. J Orthop Sports Phys Ther, 47(12), 945–956. https://doi.org/10.2519/jospt.2017.7310
Cobian, Daniel G., Cameron M. Koch, Annunziato Amendola, and Glenn N. Williams. “Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms.J Orthop Sports Phys Ther 47, no. 12 (December 2017): 945–56. https://doi.org/10.2519/jospt.2017.7310.
Cobian DG, Koch CM, Amendola A, Williams GN. Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms. J Orthop Sports Phys Ther. 2017 Dec;47(12):945–56.
Cobian, Daniel G., et al. “Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms.J Orthop Sports Phys Ther, vol. 47, no. 12, Dec. 2017, pp. 945–56. Pubmed, doi:10.2519/jospt.2017.7310.
Cobian DG, Koch CM, Amendola A, Williams GN. Knee Extensor Rate of Torque Development Before and After Arthroscopic Partial Meniscectomy, With Analysis of Neuromuscular Mechanisms. J Orthop Sports Phys Ther. 2017 Dec;47(12):945–956.

Published In

J Orthop Sports Phys Ther

DOI

EISSN

1938-1344

Publication Date

December 2017

Volume

47

Issue

12

Start / End Page

945 / 956

Location

United States

Related Subject Headings

  • Torque
  • Tibial Meniscus Injuries
  • Quadriceps Muscle
  • Prospective Studies
  • Patient Reported Outcome Measures
  • Orthopedics
  • Muscle Strength
  • Meniscectomy
  • Male
  • Longitudinal Studies