Skip to main content

Advertisement

Log in

Biomechanics of handcycling propulsion in a 30-min continuous load test at lactate threshold: Kinetics, kinematics, and muscular activity in able-bodied participants

  • Original Article
  • Published:
European Journal of Applied Physiology Aims and scope Submit manuscript

Abstract

Purpose

This study aims to investigate the biomechanics of handcycling during a continuous load trial (CLT) to assess the mechanisms underlying fatigue in upper body exercise.

Methods

Twelve able-bodied triathletes performed a 30-min CLT at a power output corresponding to lactate threshold in a racing recumbent handcycle mounted on a stationary ergometer. During the CLT, ratings of perceived exertion (RPE), tangential crank kinetics, 3D joint kinematics, and muscular activity of ten muscles of the upper extremity and trunk were examined using motion capturing and surface electromyography.

Results

During the CLT, spontaneously chosen cadence and RPE increased, whereas crank torque decreased. Rotational work was higher during the pull phase. Peripheral RPE was higher compared to central RPE. Joint range of motion decreased for elbow-flexion and radial-duction. Integrated EMG (iEMG) increased in the forearm flexors, forearm extensors, and M. deltoideus (Pars spinalis). An earlier onset of activation was found for M. deltoideus (Pars clavicularis), M. pectoralis major, M. rectus abdominis, M. biceps brachii, and the forearm flexors.

Conclusion

Fatigue-related alterations seem to apply analogously in handcycling and cycling. The most distal muscles are responsible for force transmission on the cranks and might thus suffer most from neuromuscular fatigue. The findings indicate that peripheral fatigue (at similar lactate values) is higher in handcycling compared to leg cycling, at least for inexperienced participants. An increase in cadence might delay peripheral fatigue by a reduced vascular occlusion. We assume that the gap between peripheral and central fatigue can be reduced by sport-specific endurance training.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

Abbreviations

ANOVA:

Analysis of variance

BB:

M. biceps brachii, Caput breve

CLT:

Continuous load trial

d :

Cohen’s d

DA:

M. deltoideus, Pars clavicularis

DP:

M. deltoideus, Pars spinalis

EC:

M. extensor carpi ulnaris (forearm extensors)

FC:

M. flexor carpi radialis (forearm flexors)

iEMG:

Integrated EMG (% MVIC)

LD:

M. latissimus dorsi

P 4 :

Calculated power output at a fixed lactate concentration of 4 mmol·l−1

PM:

M. pectoralis major, Pars sternalis

RA:

M. rectus abdominis

RPE:

Ratings of perceived exertion

SD:

Standard deviation

sEMG:

Surface electromyography

TB:

M. triceps brachii, Caput laterale

TD:

M. trapezius, Pars descendens

θ :

Angle

η 2p :

Partial eta squared

References

Download references

Acknowledgements

The authors would like to thank all participants who took part in this study for their patience and commitment. There were no funding sources for the present article.

Author information

Authors and Affiliations

Authors

Contributions

OJQ, TA, and KA conceived and designed research. OJQ and JM conducted experiments. TF provided medical check of the participants before experiments were performed and medical backup during experiments. OJQ and JM contributed new analytical tools. OJQ and analysed and wrote the manuscript. TA and KA reviewed the manuscript. All authors read and approved the manuscript.

Corresponding author

Correspondence to Oliver J. Quittmann.

Ethics declarations

Conflict of interest

The authors declare that there is no conflict of interest regarding the publication of this article.

Additional information

Communicated by Olivier Seynnes.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 16 kb)

421_2020_4373_MOESM2_ESM.tiff

Joint angular velocity with respect to crank angle during the 30-min continuous load trial. Values are expressed as the mean curves over all participants. EFω = elbow-flexion angular velocity; PFω = palmar-flexion angular velocity; RDω = radial-duction angular velocity; SAω = shoulder-abduction angular velocity; SFω = shoulder-flexion angular velocity; SRω = shoulder internal-rotation angular velocity; TFω = trunk-flexion angular velocity (TIFF 36621 kb)

Supplementary material 3 (DOCX 16 kb)

Supplementary material 4 (XLSX 129 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Quittmann, O.J., Abel, T., Albracht, K. et al. Biomechanics of handcycling propulsion in a 30-min continuous load test at lactate threshold: Kinetics, kinematics, and muscular activity in able-bodied participants. Eur J Appl Physiol 120, 1403–1415 (2020). https://doi.org/10.1007/s00421-020-04373-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00421-020-04373-x

Keywords

Navigation