Examination of Changes in Echo Intensity Following Resistance Exercise among Various Regions of Interest

TY - JOUR

T1 - Examination of Changes in Echo Intensity Following Resistance Exercise among Various Regions of Interest

AU - Vasenina, Ecaterina

AU - Kataoka, Ryo

AU - Hammert, William B.

AU - Ibrahim, Adam H.

AU - Dankel, Scott J.

AU - Buckner, Samuel L.

N1 - Publisher Copyright: © 2021 Scandinavian Society of Clinical Physiology and Nuclear Medicine. Published by John Wiley & Sons Ltd

PY - 2022/1

Y1 - 2022/1

N2 - Aim: Within the resistance exercise literature, echo intensity (EI) is often quantified using different regions of interest (ROI). Purpose: To compare changes in the EI of images of the biceps muscle using different ROI immediately following exercise as well as 24 and 48 h following exercise. Methods: Twenty seven non-resistance trained individuals visited the laboratory 4 times. One arm was assigned to the experimental condition, and the other was a non-exercise control. During visit 1, paperwork and strength were measured. During visit, 2 participant's muscles were imaged before performing biceps curls. Additional muscle images were taken immediately after exercise, as well as 24 and 48 h post. EI was measured using three different ROI: 1) Trace around the entire muscle; 2) Small box placed in the middle of the muscle (2 × 2cm); and 3) Maximal rectangular box. Results are displayed as means (95%CI). Results: There was no condition (experimental vs. control) x time (pre, post, 24h and 48h) x box size (small, large, full trace) interaction (p = 0·592). However, there was a main effect for box size (p < 0·001). EI values were higher with the small box [28·2 (23·3, 33·1) AU] compared to the large box [26·8 (22·3, 31·2) AU, p = 0·016] and compared to the full trace [24·2 (20·3, 28·0) AU p < 0·001)]. In addition, EI values were higher with the large box compared to the full trace technique (p = 0·001). Conclusion: Similar changes in EI are detected when using different commonly used ROI for analysing EI. However, when larger ROI are examined, EI values appear to be lower.

AB - Aim: Within the resistance exercise literature, echo intensity (EI) is often quantified using different regions of interest (ROI). Purpose: To compare changes in the EI of images of the biceps muscle using different ROI immediately following exercise as well as 24 and 48 h following exercise. Methods: Twenty seven non-resistance trained individuals visited the laboratory 4 times. One arm was assigned to the experimental condition, and the other was a non-exercise control. During visit 1, paperwork and strength were measured. During visit, 2 participant's muscles were imaged before performing biceps curls. Additional muscle images were taken immediately after exercise, as well as 24 and 48 h post. EI was measured using three different ROI: 1) Trace around the entire muscle; 2) Small box placed in the middle of the muscle (2 × 2cm); and 3) Maximal rectangular box. Results are displayed as means (95%CI). Results: There was no condition (experimental vs. control) x time (pre, post, 24h and 48h) x box size (small, large, full trace) interaction (p = 0·592). However, there was a main effect for box size (p < 0·001). EI values were higher with the small box [28·2 (23·3, 33·1) AU] compared to the large box [26·8 (22·3, 31·2) AU, p = 0·016] and compared to the full trace [24·2 (20·3, 28·0) AU p < 0·001)]. In addition, EI values were higher with the large box compared to the full trace technique (p = 0·001). Conclusion: Similar changes in EI are detected when using different commonly used ROI for analysing EI. However, when larger ROI are examined, EI values appear to be lower.

UR - https://www.scopus.com/pages/publications/85117026177

UR - https://www.scopus.com/pages/publications/85117026177#tab=citedBy

U2 - 10.1111/cpf.12731

DO - 10.1111/cpf.12731

M3 - Article

C2 - 34626059

SN - 1475-0961

VL - 42

SP - 23

EP - 28

JO - Clinical Physiology and Functional Imaging

JF - Clinical Physiology and Functional Imaging

IS - 1

ER -