Can changes in echo intensity be used to detect the presence of acute muscle swelling?
Objective: The purpose of this study was to examine acute changes in muscle thickness (MTH) and
echo-intensity (EI), following four sets of biceps curls, when it is known that the change in MTH is
due entirely to swelling. Approach: Forty-nine resistance-trained men and women participated in this
study. Individuals in the experimental group ( n = 23) visited the lab on two separate occasions.
During the first visit, paperwork and one repetition maximum (1RM) strength were measured. During
the second visit (3 –5 d after visit 1), individuals performed four sets of biceps curls to failure
using 70% of their 1RM. MTH and EI measurements were taken before and immediately following exercise
using B-mode ultrasound. The ultrasound probe was equipped with a level to minimize the influence of
probe tilt on the EI measurement. A time-matched control group ( n = 26) was included to account
for measurement error for both MTH and EI. Results are presented as me...
Source: Physiological Measurement - Category: Physiology Authors: Noam Yitzchaki, Tayla E Kuehne, J Grant Mouser and Samuel L Buckner Source Type: research