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Neuromuscular control and exercise-related leg pain in triathletes

Journal Article


Abstract


  • Previous studies have shown that cycling can directly influence neuromuscular control during subsequent running in some highly trained triathletes. A relationship between this altered neuromuscular control of running and musculoskeletal pain and injury has been proposed; however, this link has not been investigated.

    Purpose: This study aimed to evaluate the influence of cycling on neuromuscular control during subsequent running in highly trained triathletes with and without exercise-related leg pain (ERLP).

    Methods: Participants were 34 highly trained triathletes: 10 triathletes with a history of ERLP and 24 training-matched control triathletes with no history of ERLP. Knee and ankle kinematics and leg muscle recruitment were compared between a baseline run (no prior exercise) and a transition run (preceded by cycling; i.e., run vs cycle run).

    Results: Knee and ankle joint kinematics were not different between baseline and transition runs for any triathletes: absolute mean difference (±95% confidence interval) was 1.49° ± 0.17°. However, muscle recruitment was different between baseline and transition runs, defined by absolute mean difference in EMG amplitude ≥10%, in 5 of 24 control triathletes (11/130 muscles exhibited altered recruitment) and in 5 of 10 triathletes with a history of ERLP (12/50 muscles exhibited altered recruitment). This represents a relative risk of 2.40 (0.89-6.50; P = 0.089) when defined by athletes and 2.62 (1.34-6.01; P < 0.01) when defined by muscles. The magnitude of change in muscle recruitment between baseline and transition runs was not different between control (14.10% ± 2.34%) and ERLP triathletes (16.31% ± 3.64%; P = 0.41).

    Conclusions: This study demonstrates an association between ERLP in triathletes and their neuromuscular control when running off the bike.

Authors


  •   Chapman, Andrew R. (external author)
  •   Hodges, Paul W. (external author)
  •   Briggs, Andrew M. (external author)
  •   Stapley, Paul J.
  •   Vicenzino, Bill (external author)

Publication Date


  • 2010

Citation


  • Chapman, A. R., Hodges, P. W., Briggs, A. M., Stapley, P. J. & Vicenzino, B. (2010). Neuromuscular control and exercise-related leg pain in triathletes. Medicine and Science in Sports and Exercise, 42 (2), 233-243.

Scopus Eid


  • 2-s2.0-75149189197

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3218

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 233

End Page


  • 243

Volume


  • 42

Issue


  • 2

Abstract


  • Previous studies have shown that cycling can directly influence neuromuscular control during subsequent running in some highly trained triathletes. A relationship between this altered neuromuscular control of running and musculoskeletal pain and injury has been proposed; however, this link has not been investigated.

    Purpose: This study aimed to evaluate the influence of cycling on neuromuscular control during subsequent running in highly trained triathletes with and without exercise-related leg pain (ERLP).

    Methods: Participants were 34 highly trained triathletes: 10 triathletes with a history of ERLP and 24 training-matched control triathletes with no history of ERLP. Knee and ankle kinematics and leg muscle recruitment were compared between a baseline run (no prior exercise) and a transition run (preceded by cycling; i.e., run vs cycle run).

    Results: Knee and ankle joint kinematics were not different between baseline and transition runs for any triathletes: absolute mean difference (±95% confidence interval) was 1.49° ± 0.17°. However, muscle recruitment was different between baseline and transition runs, defined by absolute mean difference in EMG amplitude ≥10%, in 5 of 24 control triathletes (11/130 muscles exhibited altered recruitment) and in 5 of 10 triathletes with a history of ERLP (12/50 muscles exhibited altered recruitment). This represents a relative risk of 2.40 (0.89-6.50; P = 0.089) when defined by athletes and 2.62 (1.34-6.01; P < 0.01) when defined by muscles. The magnitude of change in muscle recruitment between baseline and transition runs was not different between control (14.10% ± 2.34%) and ERLP triathletes (16.31% ± 3.64%; P = 0.41).

    Conclusions: This study demonstrates an association between ERLP in triathletes and their neuromuscular control when running off the bike.

Authors


  •   Chapman, Andrew R. (external author)
  •   Hodges, Paul W. (external author)
  •   Briggs, Andrew M. (external author)
  •   Stapley, Paul J.
  •   Vicenzino, Bill (external author)

Publication Date


  • 2010

Citation


  • Chapman, A. R., Hodges, P. W., Briggs, A. M., Stapley, P. J. & Vicenzino, B. (2010). Neuromuscular control and exercise-related leg pain in triathletes. Medicine and Science in Sports and Exercise, 42 (2), 233-243.

Scopus Eid


  • 2-s2.0-75149189197

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3218

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 233

End Page


  • 243

Volume


  • 42

Issue


  • 2