Test–Retest Reliability of Plantar Flexion Torque Generation During a Functional Knee Extended Position in Older and Younger Men

in Journal of Aging and Physical Activity
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Measuring ankle torque is of paramount importance. This study compared the test–retest reliability of the plantar flexion torque–generating capacity between older and younger men. Twenty-one older (68 ± 6 years) and 22 younger (25 ± 5 years) men were tested twice for maximal isometric plantar flexion. Peak torque (PT), rate of torque development, and contractile impulses (CI) were obtained from 0 to 50 ms (rate of torque development0–50; CI0–50) and from 100 to 200 ms (rate of torque development100–200; CI100–200). Typical error as the coefficient of variation (CVTE) and intraclass correlation coefficient were used to assess test–retest reliability. Student’s t test was applied to investigate systematic errors. The CVTE ratio was used for between-group comparisons. Only PT demonstrated acceptable reliability (intraclass correlation coefficient ≥ .75 and CV ≤ 10%). Older men demonstrated greater CVTE than younger men for PT (ratio = 2.24), but lesser for rapid torque (ratio ≤ 0.84). Younger men demonstrated systematic error for PT (6.5%) and CI100–200 (−8.9%). In conclusion, older men demonstrated greater variability for maximal torque output, but lesser for rapid torque.

Ugliara, Bottaro, and Vieira are with the Faculty of Physical Education, University of Brasília, Brasília, Brazil. Tufano is with the Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic.

Ugliara (lucasugliaraunb@gmail.com) is corresponding author.
  • Atkinson, G., & Nevill, A.M. (1998). Statistical methods for assessing measurement error (reliability) in variables relevant to sports medicine. Sports Medicine, 26(4), 217238. PubMed ID: 9820922 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Bemben, M.G., Massey, B.H., Boileau, R.A., & Misner, J.E. (1992). Reliability of isometric force-time curve parameters for men aged 20 to 79 years. Journal of Strength and Conditioning Research, 6(3), 158164. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Bland, J.M., & Altman, D.G. (1996). Statistics notes: Measurement error proportional to the mean. BMJ, 313(7049), 106 . PubMed ID: 8688716 doi:

  • Bohrer, R.C.D., Pereira, G., Beck, J.K., Lodovico, A., & Rodacki, A.L.F. (2019). Multicomponent training program with high-speed movement execution of ankle muscles reduces risk of falls in older adults. Rejuvenation Research, 22(1), 4350. PubMed ID: 29911496 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Challis, J.H. (2006). Aging, regularity and variability in maximum isometric moments. Journal of Biomechanics, 39(8), 15431546. PubMed ID: 15946669 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Clark, B.C., Cook, S.B., & Ploutz-Snyder, L.L. (2007). Reliability of techniques to assess human neuromuscular function in vivo. Journal of Electromyography and Kinesiology, 17(1), 90101. PubMed ID: 16427317 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Cohen, J. (1988). Statistical power analysis for the behavioral sciences. (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.

  • Craig, C.L., Marshall, A.L., Sjöström, M., Bauman, A.E., Booth, M.L., Ainsworth, B.E., … Oja, P. (2003). International physical activity questionnaire: 12-country reliability and validity. Medicine & Science in Sports & Exercise, 35(8), 13811395. PubMed ID: 12900694 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Del Balso, C., & Cafarelli, E. (2007). Adaptations in the activation of human skeletal muscle induced by short-term isometric resistance training. Journal of Applied Physiology, 103(1), 402411. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Drake, D., Kennedy, R., & Wallace, E. (2018). Familiarization, validity and smallest detectable difference of the isometric squat test in evaluating maximal strength. Journal of Sports Sciences, 36(18), 20872095. PubMed ID: 29405842 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Ema, R., Saito, M., Ohki, S., Takayama, H., Yamada, Y., & Akagi, R. (2016). Association between rapid force production by the plantar flexors and balance performance in elderly men and women. Age, 38(5–6), 475483. PubMed ID: 27581165 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Farrow, M., Biglands, J., Tanner, S.F., Clegg, A., Brown, L., Hensor, E.M.A., … Tan, A.L.. (2020). The effect of ageing on skeletal muscle as assessed by quantitative MR imaging : An association with frailty and muscle strength. Aging Clinical and Experimental Research. doi:

    • Crossref
    • PubMed
    • Search Google Scholar
    • Export Citation
  • Hopkins, W.G. (2000). Measures of reliability in sports medicine and science. Sports Medicine, 30(1), 115. PubMed ID: 10907753 doi:

  • Hopkins, W.G. (2015). Spreadsheets for analysis of validity and reliability. Sportscience, 19(19), 3644. sportsci.org/2017/wghxls.htm

    • Search Google Scholar
    • Export Citation
  • Hopkins, W.G., & Hewson, D.J. (2001). Variability of competitive performance of distance runners [Variabilite des performances de competition des coureurs de fond]. Medicine & Science in Sports & Exercise, 33(9), 15881592. Retrieved from http://articles.sirc.ca/search.cfm?id=S-790865%5Cnhttp://search.ebscohost.com/login.aspx?direct=true&db=s3h&AN=SPHS-790865&site=ehost-live%5Cnhttp://www.wwilkins.com. PubMed ID: 11528349 doi:.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Kobayashi, Y., Ueyasu, Y., Yamashita, Y., & Akagi, R. (2016). Effects of 4 weeks of explosive-type strength training for the plantar flexors on the rate of torque development and postural stability in elderly individuals. International Journal of Sports Medicine, 37(6), 470475. PubMed ID: 26990722 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Libardi, C.A., Souza, T.M.F., Conceicąõ, M.S., Chacon-Mikahil, M.P.T., Ugrinowitsch, C., Bonganha, V., … Cavaglieri, C.R. (2016). The number of sessions required to stabilize peak torque and rate of torque development in isometric contractions in young, middle-age and older individuals. Isokinetics and Exercise Science, 24(2), 165170. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Lund, H., Sondergaard, K., Zachariassen, T., Christensen, R., Bulow, P., Henriksen, M., … Bliddal, H. (2005). Learning effect of isokinetic measurements in healthy subjects, and reliability and comparability of Biodex and Lido dynamometers. Clinical Physiology and Functional Imaging, 25(2), 7582. PubMed ID: 15725305 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Maffiuletti, N.A., Aagaard, P., Blazevich, A.J., Folland, J., Tillin, N., & Duchateau, J. (2016). Rate of force development: Physiological and methodological considerations. European Journal of Applied Physiology, 116(6), 10911116. PubMed ID: 26941023 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Mello, E.M., Magalhães, F.H., & Kohn, A.F. (2013). Larger plantar flexion torque variability implies less stable balance in the young: An association affected by knee position. Human Movement Science, 32(6), 13101324. PubMed ID: 24060221 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Merlet, A.N., Cattagni, T., Cornu, C., & Jubeau, M. (2018). Effect of knee angle on neuromuscular assessment of plantar flexor muscles: A reliability study. PLoS One, 13(3), e0195220. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Muehlbauer, T., Gollhofer, A., & Granacher, U. (2013). Association of balance, strength, and power measures in young adults. Journal of Strength and Conditioning Research, 27(3), 582589. PubMed ID: 23443216 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Olsson, U. (2005). Confidence intervals for the mean of a log-normal distribution. Journal of Statistics Education, 13(1). doi:

  • Petersen, J., Nielsen, R.O., Rasmussen, S., & Sørensen, H. (2014). Comparisons of increases in knee and ankle joint moments following an increase in running speed from 8 to 12 to 16 km·h−1. Clinical Biomechanics, 29(9), 959964. PubMed ID: 25242200 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Ploutz-Snyder, L.L., & Giamis, E.L. (2001). Orientation and familiarization to 1RM strength testing in old and young women. Journal of Strength and Conditioning Research, 15(4), 519523. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Schache, A.G., Blanch, P.D., Dorn, T.W., Brown, N.A.T., Rosemond, D., & Pandy, M.G. (2011). Effect of running speed on lower limb joint kinetics. Medicine & Science in Sports & Exercise, 43(7), 12601271. PubMed ID: 21131859 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Sherman, S.M., Buckley, T.P., Baena, E., & Ryan, L. (2016). Caffeine enhances memory performance in young adults during their non-optimal time of day. Frontiers in Psychology, 7, 1764. doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Trajano, G.S., Seitz, L.B., Nosaka, K., & Blazevich, A.J. (2014). Can passive stretch inhibit motoneuron facilitation in the human plantar flexors? Journal of Applied Physiology, 117(12), 14861492. PubMed ID: 25342705 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Webber, S.C., & Porter, M.M. (2010). Reliability of ankle isometric, isotonic, and isokinetic strength and power testing in older women. Physical Therapy, 90(8), 11651175. PubMed ID: 20488976 doi:

    • Crossref
    • Search Google Scholar
    • Export Citation
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