The Dmax Method Is A Valid Procedure To Estimate Physical Working Capacity At Fatigue Threshold

Keywords

cycle ergometry; electromyography; neuromuscular fatigue; reproducibility; sensitivity; validity

Abstract

Introduction: The purpose of this study was to determine the validity of the maximal distance–electromyography (Dmax-EMG) method for estimating physical working capacity at fatigue threshold (PWCFT). Methods: Twenty-one men and women (age 22.9 ± 3.0 years) volunteered to perform 12 sessions of high-intensity interval training (HIIT) over 4 weeks. Before and after HIIT training, a graded exercise test (GXT) was used to estimate PWCFT using the Dmax method and the original (ORG) method. Results: There was a significant increase in PWCFT for both ORG (+10.6%) and Dmax (+12.1%) methods, but no significant difference in the change values between methods. Further, Bland–Altman analyses resulted in non-significant biases (ORG–Dmax) between methods at pre-HIIT (–6.4 ± 32.5 W; P > 0.05) and post-HIIT (–4.2 ± 33.1 W; P > 0.05). Conclusion: The Dmax method is sensitive to training and is a valid method for estimating PWCFT in young men and women. Muscle Nerve 55: 344–349, 2017.

Publication Date

3-1-2017

Publication Title

Muscle and Nerve

Volume

55

Issue

3

Number of Pages

344-349

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/mus.25255

Socpus ID

85007312323 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85007312323

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