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Age-related changes in muscle thickness and echo intensity of trunk muscles in healthy women: comparison of 20–60s age groups

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European Journal of Applied Physiology Aims and scope Submit manuscript

Abstract

Purpose

The objective of this study was to investigate the age-related changes in muscle thickness and muscle echo intensity of trunk in subjects including wide range of age groups.

Methods

The subjects were 112 healthy women (age range 20–60s). The rectus abdominis, external oblique, internal oblique, transversus abdominis, erector spinae, and lumbar multifidus muscles were examined. To confirm the differences among the age groups, the linear mixed effect models were performed.

Results

There were significant decreases in muscle thickness of the rectus abdominis and external oblique muscles in the 50s and 60s age groups compared to those in the 20s age group, and a significant decrease in muscle thickness of the erector spinae muscle in the 60s age group compared to those in the 20s age group. However, there was no significant difference among the age groups in muscle thickness of other trunk muscles. There were significant increases in echo intensity of the abdominal muscles in other age groups compared to those in the 20s age group, and significant increases in echo intensity of the back muscles in the age groups over 40 compared to those in the 20s group.

Conclusion

Our study revealed that muscle quality may be more affected by age than muscle quantity and the effects of aging differ among muscles.

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Abbreviations

EI:

Echo intensity

MT:

Muscle thickness

20s:

20–29 Years old

30s:

30–39 Years old

30s:

40–49 Years old

50s:

50–59 Years old

60s:

60–69 Years old

References

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Acknowledgements

We thank all of our study subjects for their participation.

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Authors and Affiliations

Authors

Contributions

HT, TI and NI conceived and designed research. TK conducted experiments and analyzed data. MO wrote the manuscript. All authors read and approved the manuscript.

Corresponding author

Correspondence to Megumi Ota.

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Conflict of interest

The authors declare financial conflicts of interest concerning this study. This study was supported by a joint research fund from Wacoal Holdings Corporation.

Additional information

Communicated by William J. Kraemer.

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Cite this article

Ota, M., Ikezoe, T., Kato, T. et al. Age-related changes in muscle thickness and echo intensity of trunk muscles in healthy women: comparison of 20–60s age groups. Eur J Appl Physiol 120, 1805–1814 (2020). https://doi.org/10.1007/s00421-020-04412-7

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  • DOI: https://doi.org/10.1007/s00421-020-04412-7

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