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Effects of neuromuscular fatigue on the electromechanical delay of the leg extensors and flexors in young and old men

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Abstract

Purpose

The purpose of this study was to investigate the effects of a fatigue-inducing bout of submaximal, intermittent isometric contractions on the electromechanical delay (EMD) of the leg extensors and flexors in young and old men.

Methods

Twenty young (mean ± SD: age = 25 ± 2.8 years) and sixteen old (age = 70.8 ± 3.8) recreationally active men performed maximal voluntary contractions (MVCs) followed by a fatigue-inducing protocol consisting of intermittent isometric contractions of the leg extensors or flexors using a 0.6 duty cycle (6 s contraction, 4 s relaxation) at 60 % of MVC until volitional fatigue. MVCs were again performed at 0, 7, 15, and 30 min post fatigue. A three-way mixed factorial ANOVA was used to analyze the EMD data.

Results

There was a two-way muscle × time interaction (P = 0.039) where the EMD of the leg flexors was greater (P = 0.001–0.034) compared with baseline at all post fatigue time periods, but was only greater at immediately post fatigue for the extensors (P = 0.001). A significant two-way interaction for muscle × age (P = 0.009) revealed that the EMD was greater (P = 0.003) for the extensors for the old compared with the young men, but not different for the flexors (P = 0.506).

Conclusions

These findings showed differential fatigue-induced EMD recovery patterns between the leg extensors and flexors with the flexors being slower to recover and also that age-related increases of EMD are muscle group specific. The sustained increased EMD of the flexors during recovery may have important injury and performance implications in a variety of populations and settings.

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References

  • Allman BL, Rice CL (2001) Incomplete recovery of voluntary isometric force after fatigue is not affected by old age. Muscle Nerve 24(9):1156–1167

    Article  PubMed  CAS  Google Scholar 

  • Allman BL, Rice CL (2002) Neuromuscular fatigue and aging: central and peripheral factors. Muscle Nerve 25(6):785–796

    Article  PubMed  Google Scholar 

  • Badier M, Guillot C, Danger C, Tagliarini F, Jammes Y (1999) M-wave changes after high- and low-frequency electrically induced fatigue in different muscles. Muscle Nerve 22(4):488–496

    Article  PubMed  CAS  Google Scholar 

  • Barry BK, Warman GE, Carson RG (2005) Age-related differences in rapid muscle activation after rate of force development training of the elbow flexors. Exp Brain Res 162(1):122–132

    Article  PubMed  Google Scholar 

  • Bell DG, Jacobs I (1986) Electro-mechanical response times and rate of force development in males and females. Med Sci Sports Exerc 18(1):31–36

    PubMed  CAS  Google Scholar 

  • Bennell K, Wajswelner H, Lew P, Schall-Riaucour A, Leslie S, Plant D, Cirone J (1998) Isokinetic strength testing does not predict hamstring injury in Australian Rules footballers. Br J Sports Med 32(4):309–314

    Article  PubMed  CAS  Google Scholar 

  • Bento PCB, Pereira G, Ugrinowitsch C, Rodacki ALF (2010) Peak torque and rate of torque development in elderly with and without fall history. Clin Biomech 25(5):450–454

    Article  Google Scholar 

  • Bigland-Ritchie B, Woods JJ (1984) Changes in muscle contractile properties and neural control during human muscular fatigue. Muscle Nerve 7(9):691–699

    Article  PubMed  CAS  Google Scholar 

  • Bigland-Ritchie B, Cafarelli E, Vollestad NK (1986) Fatigue of submaximal static contractions. Acta Physiol Scand Suppl 556:137–148

    PubMed  CAS  Google Scholar 

  • Bilodeau M, Henderson TK, Nolta BE, Pursley PJ, Sandfort GL (2001) Effect of aging on fatigue characteristics of elbow flexor muscles during sustained submaximal contraction. J Appl Physiol (Bethesda, Md: 1985) 91(6):2654–2664

    CAS  Google Scholar 

  • Blackburn JT, Bell DR, Norcross MF, Hudson JD, Engstrom LA (2009) Comparison of hamstring neuromechanical properties between healthy males and females and the influence of musculotendinous stiffness. J Electromyogr Kinesiol 19(5):e362

    Article  PubMed  Google Scholar 

  • Boncompagni S, d’Amelio L, Fulle S, Fanò G, Protasi F (2006) Progressive disorganization of the excitation–contraction coupling apparatus in aging human skeletal muscle as revealed by electron microscopy: a possible role in the decline of muscle performance. J Gerontol Ser A Biol Sci Med Sci 61(10):995–1008

    Article  Google Scholar 

  • Cavanagh PR, Komi PV (1979) Electromechanical delay in human skeletal muscle under concentric and eccentric contractions. Eur J Appl Physiol 42(3):159–163

    Article  CAS  Google Scholar 

  • Chen TC, Lin KY, Chen HL, Lin MJ, Nosaka K (2011) Comparison in eccentric exercise-induced muscle damage among four limb muscles. Eur J Appl Physiol 111(2):211–223

    Article  PubMed  Google Scholar 

  • Clarkson PM, Kroll W (1978) Practice effects on fractionated response time related to age and activity level. J Mot Behav 10(4):275–286

    PubMed  CAS  Google Scholar 

  • Delecluse C (1997) Influence of strength training on sprint running performance. Current findings and implications for training. Sports Med 24(3):147–156

    Article  PubMed  CAS  Google Scholar 

  • Duchateau J, Hainaut K (1985) Electrical and mechanical failures during sustained and intermittent contractions in humans. J Appl Physiol 58(3):942–947

    PubMed  CAS  Google Scholar 

  • Fitts RH (2006) The muscular system: fatigue processes. ACSM’s advanced exercise physiology. Lippincott Williams & Wilkins, Philadelphia

    Google Scholar 

  • Garrett WE, Califf JC, Bassett FH (1984) Histochemical correlates of hamstring injuries. Am J Sports Med 12(2):98–103

    Article  PubMed  Google Scholar 

  • Green HJ (1997) Mechanisms of muscle fatigue in intense exercise. J Sports Sci 15(3):247–256

    Article  PubMed  CAS  Google Scholar 

  • Hagood S, Solomonow M, Baratta R, Zhou BH, D’Ambrosia R (1990) The effect of joint velocity on the contribution of the antagonist musculature to knee stiffness and laxity. Am J Sports Med 18(2):182–187

    Article  PubMed  CAS  Google Scholar 

  • Häkkinen K, Komi PV (1983) Electromyographic and mechanical characteristics of human skeletal muscle during fatigue under voluntary and reflex conditions. Electroencephalogr Clin Neurophysiol 55(4):436–444

    Article  PubMed  Google Scholar 

  • Herda TJ, Walter AA, Costa PB, Cramer JT (2012) The effects of a doublet stimulus and pre-tension force level on the electromechanical delay. J Strength Cond Res [Epub ahead of print]

  • Hermens HJ, Freriks B, Merletti R, Stegeman D, Blok J, Rau G, Disselhorst-Klug C, Hagg G (1999) SENIAM European recommendations for surface electromyography: results of the SENIAM Project. Roessingh Research and Development, Enschede

    Google Scholar 

  • Hill AV (1950) The series elastic component of muscle. Proc R Soc Lond B Biol Sci 137(887):273–280

    Article  PubMed  CAS  Google Scholar 

  • Howatson G (2010) The impact of damaging exercise on electromechanical delay in biceps brachii. J Electromyogr Kinesiol 20(3):477–481

    Article  PubMed  Google Scholar 

  • Jamurtas AZ, Theocharis V, Tofas T, Tsiokanos A, Yfanti C, Paschalis V, Koutedakis Y, Nosaka K (2005) Comparison between leg and arm eccentric exercises of the same relative intensity on indices of muscle damage. Eur J Appl Physiol 95(2–3):179–185

    Article  PubMed  Google Scholar 

  • Jones DA (1996) High-and low-frequency fatigue revisited. Acta Physiol Scand 156(3):265–270

    Article  PubMed  CAS  Google Scholar 

  • Kahya MC, Yavuz SU, Turker KS (2010) Cutaneous silent period in human FDI motor units. Exp Brain Res 205(4):455–463

    Article  PubMed  Google Scholar 

  • Lexell J (1995) Human aging, muscle mass, and fiber type composition. J Gerontol Ser A Biol Sci Med Sci 50(Spec No):11–16

    Google Scholar 

  • Maganaris CN (2002) Tensile properties of in vivo human tendinous tissue. J Biomech 35(8):1019–1027

    Article  PubMed  Google Scholar 

  • Mercer TH, Gleeson NP, Claridge S, Clement S (1998) Prolonged intermittent high intensity exercise impairs neuromuscular performance of the knee flexors. Eur J Appl Physiol 77(6):560–562

    Article  CAS  Google Scholar 

  • Mero A, Komi PV, Gregor RJ (1992) Biomechanics of sprint running. A review. Sports Med 13(6):376–392

    Article  PubMed  CAS  Google Scholar 

  • Miller RG, Kent-Braun JA, Sharma KR, Weiner MW (1995) Mechanisms of human muscle fatigue. Quantitating the contribution of metabolic factors and activation impairment. Adv Exp Med Biol 384:195–210

    Article  PubMed  CAS  Google Scholar 

  • Minshull C, Gleeson N, Walters-Edwards M, Eston R, Rees D (2007) Effects of acute fatigue on the volitional and magnetically-evoked electromechanical delay of the knee flexors in males and females. Eur J Appl Physiol 100(4):469–478

    Article  PubMed  Google Scholar 

  • Minshull C, Eston R, Bailey A, Rees D, Gleeson N (2012a) Repeated exercise stress impairs volitional but not magnetically evoked electromechanical delay of the knee flexors. J Sports Sci 30(2):217–225

    Article  PubMed  Google Scholar 

  • Minshull C, Eston R, Rees D, Gleeson N (2012b) Knee joint neuromuscular activation performance during muscle damage and superimposed fatigue. J Sports Sci 30(10):1015–1024

    Article  PubMed  Google Scholar 

  • Mitchell C, Cohen R, Dotan R, Gabriel D, Klentrou P, Falk B (2011) Rate of muscle activation in power-and endurance-trained boys. Int J Sports Physiol Perform 6(1):94

    PubMed  Google Scholar 

  • Morse CI, Thom JM, Birch KM, Narici MV (2005) Tendon elongation influences the amplitude of interpolated doublets in the assessment of activation in elderly men. J Appl Physiol 98(1):221–226

    Article  PubMed  Google Scholar 

  • Nilsson J, Tesch P, Thorstensson A (1977) Fatigue and EMG of repeated fast voluntary contractions in man. Acta Physiol Scand 101(2):194–198

    Article  PubMed  CAS  Google Scholar 

  • Nordez A, Gallot T, Catheline S, Guevel A, Cornu C, Hug F (2009) Electromechanical delay revisited using very high frame rate ultrasound. J Appl Physiol 106(6):1970–1975

    Article  PubMed  Google Scholar 

  • Noyes FR, Butler DL, Grood ES, Zernicke RF, Hefzy MS (1984) Biomechanical analysis of human ligament grafts used in knee-ligament repairs and reconstructions. J Bone Jt Surg Am 66(3):344–352

    CAS  Google Scholar 

  • Ochala J, Lambertz D, Van Hoecke J, Pousson M (2005) Effect of strength training on musculotendinous stiffness in elderly individuals. Eur J Appl Physiol 94(1–2):126–133

    Article  PubMed  Google Scholar 

  • Pijnappels M, van der Burg PJ, Reeves ND, van Dieën JH (2008) Identification of elderly fallers by muscle strength measures. Eur J Appl Physiol 102(5):585–592

    Article  PubMed  Google Scholar 

  • Rack PM, Ross HF, Thilmann AF, Walters DK (1983) Reflex responses at the human ankle: the importance of tendon compliance. J Physiol 344:503–524

    PubMed  CAS  Google Scholar 

  • Reeves ND, Maganaris CN, Narici MV (2003) Effect of strength training on human patella tendon mechanical properties of older individuals. J Physiol 548(Pt 3):971–981

    Article  PubMed  CAS  Google Scholar 

  • Sasaki K, Sasaki T, Ishii N (2011) Acceleration and force reveal different mechanisms of electromechanical delay. Med Sci Sports Exerc 43(7):1200–1206

    Article  PubMed  Google Scholar 

  • Sjøgaard G (1990) Exercise-induced muscle fatigue: the significance of potassium. Acta Physiol Scand Suppl 593:1–63

    PubMed  Google Scholar 

  • Thompson BJ, Ryan ED, Sobolewski EJ, Smith DB, Conchola EC, Akehi K, Buckminster T (2012) Can maximal and rapid isometric torque characteristics predict playing level in division I American collegiate football players? J Strength Cond Res 27(3):655–661

    Google Scholar 

  • Thompson BJ, Ryan ED, Sobolewski EJ, Conchola EC, Cramer JT (2013a) Age related differences in maximal and rapid torque characteristics of the leg extensors and flexors in young, middle-aged and old men. Exp Gerontol 48(2):277–282

    Article  PubMed  Google Scholar 

  • Thompson BJ, Ryan ED, Sobolewski EJ, Smith DB, Akehi K, Conchola EC, Buckminster T (2013b) Relationships between rapid isometric torque characteristics and vertical jump performance in Division I collegiate American football players: Influence of body mass normalization. J Strength Cond Res [Epub ahead of print]

  • Thorlund JB, Michalsik LB, Madsen K, Aagaard P (2008) Acute fatigue-induced changes in muscle mechanical properties and neuromuscular activity in elite handball players following a handball match. Scand J Med Sci Sports 18(4):462–472

    Article  PubMed  CAS  Google Scholar 

  • Twist C, Gleeson N, Eston R (2008) The effects of plyometric exercise on unilateral balance performance. J Sports Sci 26(10):1073–1080

    Article  PubMed  Google Scholar 

  • Valour D, Pousson M (2003) Compliance changes of the series elastic component of elbow flexor muscles with age in humans. Pflugers Arch Eur J Physiol 445(6):721–727

    CAS  Google Scholar 

  • Viitasalo JT, Komi PV (1981) Interrelationships between electromyographic, mechanical, muscle structure and reflex time measurements in man. Acta Physiol Scand 111(1):97–103

    Article  PubMed  CAS  Google Scholar 

  • Vollestad NK (1997) Measurement of human muscle fatigue. J Neurosci Methods 74(2):219–227

    Article  PubMed  CAS  Google Scholar 

  • Westerblad H, Lee JA, Lännergren J, Allen DG (1991) Cellular mechanisms of fatigue in skeletal muscle. Am J Physiol 261(2 Pt 1):C195–C209

    PubMed  CAS  Google Scholar 

  • Wickiewicz TL, Roy RR, Powell PL, Edgerton VR (1983) Muscle architecture of the human lower limb. Clin Orthop Relat Res 179:275–283

    Article  PubMed  Google Scholar 

  • Winter EM, Brookes FB (1991) Electromechanical response times and muscle elasticity in men and women. Eur J Appl Physiol 63(2):124–128

    Article  CAS  Google Scholar 

  • Zhou S (1996) Acute effect of repeated maximal isometric contraction on electromechanical delay of knee extensor muscle. J Electromyogr Kinesiol 6(2):117–127

    Article  PubMed  CAS  Google Scholar 

  • Zhou S, Lawson DL, Morrison WE, Fairweather I (1995a) Electromechanical delay in isometric muscle contractions evoked by voluntary, reflex and electrical stimulation. Eur J Appl Physiol 70(2):138–145

    Article  CAS  Google Scholar 

  • Zhou S, Lawson DL, Morrison WE, Fairweather I (1995b) Electromechanical delay of knee extensors: the normal range and the effects of age and gender. J Hum Mov Stud 28(3):127–146

    Google Scholar 

  • Zhou S, McKenna MJ, Lawson DL, Morrison WE, Fairweather I (1996) Effects of fatigue and sprint training on electromechanical delay of knee extensor muscles. Eur J Appl Physiol 72(5–6):410–416

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Applied Musculoskeletal and Human Physiology Laboratory, Department of Health and Human Performance, Oklahoma State University, Stillwater, OK, 74078, USA

    E. C. Conchola & D. B. Smith

  2. Human Performance Laboratory, Department of Health, Exercise, and Sport Sciences, Texas Tech University, Exercise and Sport Sciences, Rm 104, Lubbock, TX, 79409-3011, USA

    B. J. Thompson

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  1. E. C. Conchola
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  2. B. J. Thompson
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  3. D. B. Smith
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Correspondence to B. J. Thompson.

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Communicated by Toshio Moritani.

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Conchola, E.C., Thompson, B.J. & Smith, D.B. Effects of neuromuscular fatigue on the electromechanical delay of the leg extensors and flexors in young and old men. Eur J Appl Physiol 113, 2391–2399 (2013). https://doi.org/10.1007/s00421-013-2675-y

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  • DOI: https://doi.org/10.1007/s00421-013-2675-y

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