Sex differences in neuromuscular recruitment are not related to patellar tendon load

Ina Janssen, Julie R. Steele, Bridget J. Munro, Nicholas A T Brown

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Purpose: Although male volleyball players report a greater prevalence of patellar tendinopathy than female players, it remains unknown whether higher patellar tendon loading generated during landing by male players is related to sex-specific neuromuscular recruitment patterns. This study aimed to investigate the relationship between neuromuscular recruitment patterns and patellar tendon loading during landing and to determine whether there were any significant differences in lower limb neuromuscular recruitment patterns displayed by male and female volleyball players during landing. Methods: The neuromuscular recruitment patterns and patellar tendon loading of 20 male and 20 female volleyball players performing a lateral stop-jump block movement were recorded and calculated. Pearson product-moment correlations were conducted to determine whether neuromuscular recruitment patterns were related to the peak patellar tendon force or patellar tendon force loading rate generated at landing. Independent t-tests were applied to a subset of data for 13 males and 13 females matched for jump height to identify any between-sex differences in neuromuscular recruitment patterns. Results: Later onset of rectus femoris (r = 0.312), vastus medialis (r = 0.455), and biceps femoris (r = 0.330) were significantly correlated with a higher patellar tendon force loading rate, although these correlation values were weak. Male volleyball players displayed significantly earlier biceps femoris and semitendinosus onset, and significantly earlier peak semitendinosus activity compared with their female counterparts. Conclusion: Although male and female volleyball players displayed significantly different muscle onset times, these patterns were not strongly related to patellar tendon loading at landing. It is likely that a multitude of factors, including the frequency of patellar tendon loading, more strongly contributes to developing patellar tendinopathy than neuromuscular recruitment patterns in isolation.

Original languageEnglish
Pages (from-to)1410-1416
Number of pages7
JournalMedicine and Science in Sports and Exercise
Volume46
Issue number7
DOIs
Publication statusPublished - 2014
Externally publishedYes

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Patellar Ligament
Sex Characteristics
Volleyball
Tendinopathy
Quadriceps Muscle
Lower Extremity
Muscles
Hamstring Muscles

Cite this

Janssen, Ina ; Steele, Julie R. ; Munro, Bridget J. ; Brown, Nicholas A T. / Sex differences in neuromuscular recruitment are not related to patellar tendon load. In: Medicine and Science in Sports and Exercise. 2014 ; Vol. 46, No. 7. pp. 1410-1416.
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Sex differences in neuromuscular recruitment are not related to patellar tendon load. / Janssen, Ina; Steele, Julie R.; Munro, Bridget J.; Brown, Nicholas A T.

In: Medicine and Science in Sports and Exercise, Vol. 46, No. 7, 2014, p. 1410-1416.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sex differences in neuromuscular recruitment are not related to patellar tendon load

AU - Janssen, Ina

AU - Steele, Julie R.

AU - Munro, Bridget J.

AU - Brown, Nicholas A T

PY - 2014

Y1 - 2014

N2 - Purpose: Although male volleyball players report a greater prevalence of patellar tendinopathy than female players, it remains unknown whether higher patellar tendon loading generated during landing by male players is related to sex-specific neuromuscular recruitment patterns. This study aimed to investigate the relationship between neuromuscular recruitment patterns and patellar tendon loading during landing and to determine whether there were any significant differences in lower limb neuromuscular recruitment patterns displayed by male and female volleyball players during landing. Methods: The neuromuscular recruitment patterns and patellar tendon loading of 20 male and 20 female volleyball players performing a lateral stop-jump block movement were recorded and calculated. Pearson product-moment correlations were conducted to determine whether neuromuscular recruitment patterns were related to the peak patellar tendon force or patellar tendon force loading rate generated at landing. Independent t-tests were applied to a subset of data for 13 males and 13 females matched for jump height to identify any between-sex differences in neuromuscular recruitment patterns. Results: Later onset of rectus femoris (r = 0.312), vastus medialis (r = 0.455), and biceps femoris (r = 0.330) were significantly correlated with a higher patellar tendon force loading rate, although these correlation values were weak. Male volleyball players displayed significantly earlier biceps femoris and semitendinosus onset, and significantly earlier peak semitendinosus activity compared with their female counterparts. Conclusion: Although male and female volleyball players displayed significantly different muscle onset times, these patterns were not strongly related to patellar tendon loading at landing. It is likely that a multitude of factors, including the frequency of patellar tendon loading, more strongly contributes to developing patellar tendinopathy than neuromuscular recruitment patterns in isolation.

AB - Purpose: Although male volleyball players report a greater prevalence of patellar tendinopathy than female players, it remains unknown whether higher patellar tendon loading generated during landing by male players is related to sex-specific neuromuscular recruitment patterns. This study aimed to investigate the relationship between neuromuscular recruitment patterns and patellar tendon loading during landing and to determine whether there were any significant differences in lower limb neuromuscular recruitment patterns displayed by male and female volleyball players during landing. Methods: The neuromuscular recruitment patterns and patellar tendon loading of 20 male and 20 female volleyball players performing a lateral stop-jump block movement were recorded and calculated. Pearson product-moment correlations were conducted to determine whether neuromuscular recruitment patterns were related to the peak patellar tendon force or patellar tendon force loading rate generated at landing. Independent t-tests were applied to a subset of data for 13 males and 13 females matched for jump height to identify any between-sex differences in neuromuscular recruitment patterns. Results: Later onset of rectus femoris (r = 0.312), vastus medialis (r = 0.455), and biceps femoris (r = 0.330) were significantly correlated with a higher patellar tendon force loading rate, although these correlation values were weak. Male volleyball players displayed significantly earlier biceps femoris and semitendinosus onset, and significantly earlier peak semitendinosus activity compared with their female counterparts. Conclusion: Although male and female volleyball players displayed significantly different muscle onset times, these patterns were not strongly related to patellar tendon loading at landing. It is likely that a multitude of factors, including the frequency of patellar tendon loading, more strongly contributes to developing patellar tendinopathy than neuromuscular recruitment patterns in isolation.

KW - biomechanics

KW - Knee

KW - patellar tendinopathy

KW - volleyball

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DO - 10.1249/MSS.0000000000000252

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JO - Medicine Science in Sports Exercise

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SN - 0195-9131

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