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European Journal of Applied Physiology

, Volume 119, Issue 7, pp 1557–1563 | Cite as

Do poles save energy during steep uphill walking?

  • Nicola GiovanelliEmail author
  • Michele Sulli
  • Rodger Kram
  • Stefano Lazzer
Original Article
  • 68 Downloads

Abstract

Purpose

In trail running and in uphill races many athletes use poles. However, there are few data about pole walking on steep uphill. The aim of this study was to compare the energy expenditure during uphill walking with (PW) and without (W) poles at different slopes.

Methods

Fourteen mountain running athletes walked on a treadmill in two conditions (PW and W) for 5 min at seven different angles (10.1°, 15.5°, 19.8°, 25.4°, 29.8°, 35.5° and 38.9°). We measured cardiorespiratory parameters, blood lactate concentration (BLa) and rating of perceived exertion (RPE). Then, we calculated the vertical cost of transport (CoTvert). Using video analysis, we measured stride frequency (SF) and stride length (SL).

Results

Compared to W, CoTvert during PW was lower at 25.4°, 29.8° and 35.5° PW (\( -\) 2.55 ± 3.97%; \( -\) 2.79 ± 3.88% and \( -\) 2.00 ± 3.41%, p < 0.05). RPE was significantly lower during PW at 15.5°, 19.8°, 29.8°, 35.5° and 38.9° (\( -\) 14.4 ± 18.3%; \( -\) 16.2 ± 15.2%; \( -\) 16.6 ± 16.9%; \( -\) 17.9 ± 18.7% and \( -\) 18.5 ± 17.8%, p < 0.01). There was no effect of pole use on BLa. However, BLa was numerically lower with poles at every incline except for 10.1°. On average, SF for PW was lower than for W (\( -\) 6.7 ± 5.8%, p = 0.006) and SL was longer in PW than in W (+ 8.6 ± 4.5%, p = 0.008).

Conclusions

PW on steep inclines was only slightly more economical than W, but the substantially lower RPE during PW suggests that poles may delay fatigue effects during a prolonged effort. We advocate for the use of poles during steep uphill walking, although the energetic savings are small.

Keywords

Energetics Vertical km Trail running Pole walking 

Notes

Acknowledgements

We are grateful to all the athletes who participated in the study. We also thank Gloria Plett, MD, for her assistance during the testing.

Author contributions

NG, RK and SL conception and design of research; NG and MS conducted experiments and analyzed data; NG, RK and SL interpreted results of experiments; NG and MS prepared figures; NG drafted manuscript; NG, MS, RK and SL edited and revised manuscript. NG, MS, RK and SL approved final version of manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

References

  1. Beaver WL, Wasserman K, Whipp BJ (1986) A new method for detecting anaerobic threshold by gas exchange. J Appl Physiol 60(6):2020–2027CrossRefGoogle Scholar
  2. Borg GA (1998) Borg’s perceived exertion and pain scales. Human Kinetics, ChampaignGoogle Scholar
  3. Church TS, Earnest CP, Morss GM (2002) Field testing of physiological responses associated with Nordic Walking. Res Q Exerc Sport 73(3):296–300.  https://doi.org/10.1080/02701367.2002.10609023 CrossRefGoogle Scholar
  4. di Prampero PE (1986) The energy cost of human locomotion on land and in water. Int J Sports Med 7(2):55–72CrossRefGoogle Scholar
  5. Duncan M, Lyons M (2008) The effect of hiking poles on oxygen uptake, perceived exertion and mood state during a one hour uphill walk. J Exer Physiol online 11(3)Google Scholar
  6. Figard-Fabre H, Fabre N, Leonardi A, Schena F (2010) Physiological and perceptual responses to Nordic walking in obese middle-aged women in comparison with the normal walk. Eur J Appl Physiol 108(6):1141–1151.  https://doi.org/10.1007/s00421-009-1315-z CrossRefGoogle Scholar
  7. Foissac MJ, Berthollet R, Seux J, Belli A, Millet GY (2008) Effects of hiking pole inertia on energy and muscular costs during uphill walking. Med Sci Sports Exerc 40(6):1117–1125.  https://doi.org/10.1249/MSS.0b013e318167228a CrossRefGoogle Scholar
  8. Giovanelli N, Ortiz AL, Henninger K, Kram R (2016) Energetics of vertical kilometer foot races; is steeper cheaper? J Appl Physiol (1985) 120(3):370–375.  https://doi.org/10.1152/japplphysiol.00546.2015 CrossRefGoogle Scholar
  9. Gladden LB (2004) Lactate metabolism: a new paradigm for the third millennium. J Physiol 558(Pt 1):5–30.  https://doi.org/10.1113/jphysiol.2003.058701 CrossRefGoogle Scholar
  10. Grainer A, Zerbini L, Reggiani C, Marcolin G, Steele J, Pavei G, Paoli A (2017) Physiological and perceptual responses to nordic walking in a natural mountain environment. Int J Environ Res Public Health.  https://doi.org/10.3390/ijerph14101235
  11. Hansen EA, Smith G (2009) Energy expenditure and comfort during Nordic walking with different pole lengths. J Strength Cond Res 23(4):1187–1194.  https://doi.org/10.1519/JSC.0b013e31819f1e2b CrossRefGoogle Scholar
  12. Hill M, Talbot C, Puddiford M, Price M (2018) Cardiorespiratory and perceptual responses to self-regulated and imposed submaximal arm-leg ergometry. Eur J Appl Physiol 118(5):1011–1019.  https://doi.org/10.1007/s00421-018-3838-7 CrossRefGoogle Scholar
  13. Hoffman MD, Kassay KM, Zeni AI, Clifford PS (1996) Does the amount of exercising muscle alter the aerobic demand of dynamic exercise? Eur J Appl Physiol Occup Physiol 74(6):541–547CrossRefGoogle Scholar
  14. Hreljac A, Imamura R, Escamilla RF, Edwards WB (2007) Effects of changing protocol, grade, and direction on the preferred gait transition speed during human locomotion. Gait Posture 25(3):419–424.  https://doi.org/10.1016/j.gaitpost.2006.05.005 CrossRefGoogle Scholar
  15. Jacobson BH, Wright T (1998) A field test comparison of hiking stick use on heartrate and rating of perceived exertion. Percept Mot Skills 87(2):435–438.  https://doi.org/10.2466/pms.1998.87.2.435 CrossRefGoogle Scholar
  16. Knight CA, Caldwell GE (2000) Muscular and metabolic costs of uphill backpacking: are hiking poles beneficial? Med Sci Sports Exerc 32(12):2093–2101CrossRefGoogle Scholar
  17. Minetti AE, Moia C, Roi GS, Susta D, Ferretti G (2002) Energy cost of walking and running at extreme uphill and downhill slopes. J Appl Physiol 93(3):1039–1046.  https://doi.org/10.1152/japplphysiol.01177.2001 CrossRefGoogle Scholar
  18. Nagle FJ, Richie JP, Giese MD (1984) VO2max responses in separate and combined arm and leg air-braked ergometer exercise. Med Sci Sports Exerc 16(6):563–566CrossRefGoogle Scholar
  19. Ortiz ALR, Giovanelli N, Kram R (2017) The metabolic costs of walking and running up a 30-degree incline: implications for vertical kilometer foot races. Eur J Appl Physiol 117(9):1869–1876.  https://doi.org/10.1007/s00421-017-3677-y CrossRefGoogle Scholar
  20. Pellegrini B, Peyre-Tartaruga LA, Zoppirolli C, Bortolan L, Bacchi E, Figard-Fabre H, Schena F (2015) Exploring muscle activation during nordic walking: a comparison between conventional and uphill walking. PLoS One 10(9):e0138906.  https://doi.org/10.1371/journal.pone.0138906 CrossRefGoogle Scholar
  21. Pellegrini B, Boccia G, Zoppirolli C, Rosa R, Stella F, Bortolan L, Rainoldi A, Schena F (2018) Muscular and metabolic responses to different Nordic walking techniques, when style matters. PLoS One 13(4):e0195438.  https://doi.org/10.1371/journal.pone.0195438 CrossRefGoogle Scholar
  22. Peronnet F, Massicotte D (1991) Table of nonprotein respiratory quotient: an update. Can J Sport Sci 16(1):23–29Google Scholar
  23. Perrey S, Fabre N (2008) Exertion during uphill, level and downhill walking with and without hiking poles. J Sports Sci Med 7(1):32–38Google Scholar
  24. Porcari JP, Hendrickson TL, Walter PR, Terry L, Walsko G (1997) The physiological responses to walking with and without Power Poles on treadmill exercise. Res Q Exerc Sport 68(2):161–166.  https://doi.org/10.1080/02701367.1997.10607992 CrossRefGoogle Scholar
  25. Saunders MJ, Hipp GR, Wenos DL, Deaton ML (2008) Trekking poles increase physiological responses to hiking without increased perceived exertion. J Strength Cond Res 22(5):1468–1474.  https://doi.org/10.1519/JSC.0b013e31817bd4e8 CrossRefGoogle Scholar
  26. Schiffer T, Knicker A, Hoffman U, Harwig B, Hollmann W, Struder HK (2006) Physiological responses to nordic walking, walking and jogging. Eur J Appl Physiol 98(1):56–61.  https://doi.org/10.1007/s00421-006-0242-5 CrossRefGoogle Scholar
  27. Schwameder H, Roithner R, Muller E, Niessen W, Raschner C (1999) Knee joint forces during downhill walking with hiking poles. J Sports Sci 17(12):969–978.  https://doi.org/10.1080/026404199365362 CrossRefGoogle Scholar
  28. Sugiyama K, Kawamura M, Tomita H, Katamoto S (2013) Oxygen uptake, heart rate, perceived exertion, and integrated electromyogram of the lower and upper extremities during level and Nordic walking on a treadmill. J Physiol Anthropol 32(1):2.  https://doi.org/10.1186/1880-6805-32-2 CrossRefGoogle Scholar
  29. Voloshina AS, Ferris DP (2015) Biomechanics and energetics of running on uneven terrain. J Exp Biol 218(Pt 5):711–719.  https://doi.org/10.1242/jeb.106518 CrossRefGoogle Scholar
  30. Willson J, Torry MR, Decker MJ, Kernozek T, Steadman JR (2001) Effects of walking poles on lower extremity gait mechanics. Med Sci Sports Exerc 33(1):142–147CrossRefGoogle Scholar
  31. Zoffoli L, Lucertini F, Federici A, Ditroilo M (2016) Trunk muscles activation during pole walking vs. walking performed at different speeds and grades. Gait Posture 46:57–62.  https://doi.org/10.1016/j.gaitpost.2016.02.015 CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of MedicineUniversity of UdineUdineItaly
  2. 2.School of Sport ScienceUdineItaly
  3. 3.Locomotion Laboratory, Integrative Physiology DepartmentUniversity of ColoradoBoulderUSA

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