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. 2022 Jan;32(1):45-59.
doi: 10.1111/sms.14053. Epub 2021 Sep 26.

Concentric versus eccentric cycling at equal power output or effort perception: Neuromuscular alterations and muscle pain

Pierre Clos  1 , Adrien Mater  1 , Davy Laroche  1 , Romuald Lepers  1
Affiliations

Concentric versus eccentric cycling at equal power output or effort perception: Neuromuscular alterations and muscle pain

Pierre Clos et al. Scand J Med Sci Sports. 2022 Jan.

Abstract

This study aimed to compare neuromuscular alterations and perceptions of effort and muscle pain induced by concentric and eccentric cycling performed at the same power output or effort perception. Fifteen participants completed three 30-min sessions: one in concentric at 60% peak power output (CON) and two in eccentric, at the same power output (ECCPOWER ) or same perceived effort (ECCEFFORT ). Muscle pain, perception of effort, oxygen uptake as well as rectus femoris and vastus lateralis electromyographic activities were collected when pedaling. The knee extensors maximal voluntary contraction (MVC) torque, the torque evoked by double stimulations at 100 Hz and 10 Hz (Dt100; Dt10), and the voluntary activation level (VAL) were evaluated before and after exercise. Power output was higher in ECCEFFORT than CON (89.1 ± 23.3% peak power). Muscle pain and effort perception were greater in CON than ECCPOWER (p < 0.03) while muscle pain was similar in CON and ECCEFFORT (p > 0.43). MVC torque, Dt100, and VAL dropped in all conditions (p < 0.04). MVC torque (p < 0.001) and the Dt10/ Dt100 ratio declined further in ECCEFFORT (p < 0.001). Eccentric cycling perceived as difficult as concentric cycling caused similar muscle pain but more MVC torque decrease. A given power output induced lower perceptions of pain and effort in eccentric than in concentric yet similar MVC torque decline. While neural impairments were similar in all conditions, eccentric cycling seemed to alter excitation-contraction coupling. Clinicians should thus be cautious when setting eccentric cycling intensity based on effort perception.

Keywords: excitation-contraction coupling; maximal voluntary contraction; performance fatigability; voluntary activation level.

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References

REFERENCES

    1. Hoppeler H. Moderate load eccentric exercise; a distinct novel training modality. Front Physiol. 2016;16(7):483.
    1. Sidhu SK, Cresswell AG, Carroll TJ. Corticospinal responses to sustained locomotor exercises: moving beyond single-joint studies of central fatigue. Sports Med. 2013;43:437-449.
    1. Peñailillo L, Blazevich AJ, Nosaka K. Muscle fascicle behavior during eccentric cycling and its relation to muscle soreness. Med Sci Sports Exerc. 2015;47:708-717.
    1. Lewis MC, Peoples GE, Groeller H, et al. Eccentric cycling emphasising a low cardiopulmonary demand increases leg strength equivalent to workload matched concentric cycling in middle age sedentary males. J Sci Med Sport. 2018;21:1238-1243.
    1. Julian V, Thivel D, Miguet M, et al. Eccentric cycling is more efficient in reducing fat mass than concentric cycling in adolescents with obesity. Scand J Med Sci Sports. 2019;29(1):4-15.

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