Muscle thickness correlates to muscle cross sectional area in the assessment of strength training induced hypertrophy

Franchi, Martino V.; Longo, Stefano; Mallinson, Joanne E.; Quinlan, Jonathan I.; Taylor, Tariq; Greenhaff, Paul L.; Narici, Marco V.

Abstract

Aim: Muscle thickness (MT) measured by ultrasound has been used to estimate cross-sectional area (measured by CT and MRI) at a single time-point. We tested whether MT could be used as a valid marker of MRI determined muscle anatomical cross-sectional area (ACSA) and volume changes following resistance training (RT).
Methods: Nine healthy, young, male volunteers (24±2 y.o., BMI 24.1±2.8 kg/m2) had vastus lateralis (VL) muscle volume (VOL) and ACSA mid (at 50% of femur length, FL) assessed by MRI, and VL MT measured by ultrasound at 50% FL. Measurements were taken at baseline and after 12 weeks of isokinetic RT. Differences between baseline and post-training were assessed by Student’s paired t-test. The relationships between MRI and ultrasound measurements were tested by Pearson’s correlation.
Results: After RT, MT increased by 7.5±6.1% (p

Citation

Franchi, M. V., Longo, S., Mallinson, J. E., Quinlan, J. I., Taylor, T., Greenhaff, P. L., & Narici, M. V. (in press). Muscle thickness correlates to muscle cross sectional area in the assessment of strength training induced hypertrophy. Scandinavian Journal of Medicine and Science in Sports, 28(3), https://doi.org/10.1111/sms.12961

• Journal Article Type: Article
• Acceptance Date: Aug 14, 2017
• Online Publication Date: Sep 21, 2017
• Deposit Date: Aug 24, 2017
• Publicly Available Date: Sep 21, 2017
• Journal: Scandinavian Journal of Medicine & Science in Sports
• Print ISSN: 0905-7188
• Electronic ISSN: 1600-0838
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 28
• Issue: 3
• DOI: https://doi.org/10.1111/sms.12961
• Keywords: MRI ; ACSA ; Ultrasound; Volume
• Public URL: https://nottingham-repository.worktribe.com/output/883547
• Publisher URL: http://onlinelibrary.wiley.com/doi/10.1111/sms.12961/abstract