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Differences of linea alba length according to angle
Source publication
Objective: The purpose of this study was to investigate changes of abdominal muscles thickness according to the angle during the active straight leg raise (ASLR) in young healthy subjects. Design: Cross sectional study. Methods: Twenty-three healthy university students (13 men and 10 women) voluntary participated to the study in S University. The A...
Context in source publication
Similar publications
Background and objective: Prior studies have reported an activation of abdominal muscles during hypopressive exercises in women with pelvic floor disfunction. However, no previous research analyzed the effects of hypopressive exercise on abdominal muscles in healthy populations to understand the normal biomechanics of this area. The aim of this stu...
Citations
... In this study, SLBE was performed by using the affected leg for support against the floor while the unaffected leg was unraised and placed on the ground comfortably. The SLBE was designed as such because previous studies have shown that abdominal muscle activation is greatly induced as the angle of the raised leg increases to decrease dependence levels in stroke patients [26]. ...
... Finally, another factor that could affect comparisons between studies is the angle of trunk and hip flexion at which the measurements were taken. We measured the thickness of the RA muscle during trunk and leg lifting exercises at very low angles of flexion, no more than10° for trunk lift and for leg lift, which is lower compared to other studies [5,12,30]. The reason for this specific configuration was that in a larger angle, at least for the distal segments, the US probe would not have scanned smoothly near the pu- [5] reported that the most effective exercise angles for RA strengthening are 60° for trunk raises and 90° for leg raises, since these were the angles they observed the greatest muscle thickness. ...
Aim:
The purpose of the present study was to establish which type of exercise is optimal for Rectus Abdominis (RA) muscle, by measuring thickness and length changes using the extended field of view ultrasonography (EFOV US) during different conditions. The second purpose was to estimate the reliability of EFOV US as a muscle morphology assessment tool.
Material and methods:
Segmental muscle thickness and length of 11 young healthy adults was assessed during 1) rest and isometric 2) trunk lifting, 3) leg lifting and 4) combined trunk and leg lifting exercises with the use of EFOV US.
Results:
RA muscle thickness was significantly greater during exercises compared to rest (p<0.05). It was also observed that proximal and proximal-middle segments showed significantly less thickness and length compared to distal-middle and distal segments (p<0.05). Even though no differences in thickness were observed between the exercises, leg lifting and combined trunk and leg lifting exercises affected more the distal segment of RA muscle (p<0.05). Moreover, no significant differences in length between exercises was found (p>0.05). Further, EFOV US displayed excellent reliability as the ICC values ranged from 0.82 to 0.97.
Conclusions:
According to our observations it seems that exercises that induce lifting of the legs might be more effective for the distal parts of RA muscle. EFOV appears to be a reliable diagnostic tool for measuring RA muscle thickness during rest and contracting states.
... Several studies have investigated the validity and reliability of the ultrasound measurement of the limbs and trunk Original Article muscles [2,[11][12][13][14][15][16][17][18][19]. Of the many muscles researched using RUSI, the transversus abdominis (TrA), which is associated with lower back pain, has been extensively investigated being one of the muscles with the greatest effect on exercise. ...
... Ultrasonography is a reliable and valid method of assessing the structure of the functions and activities being used by physical therapists [31,32]. This technique is important to research the activity of deep muscles such as deep abdominal muscles and muscle contractions can be studied in real time [33,34]. During measurement with the ultrasonography, abdominal muscle thickness changes can be measured as an indicator of the abdominal muscles activity. ...
Objective: The purpose of this study was to determine the effect of the abdominal bracing (AB) and abdominal bracing combined with ankle dorsiflexion (ABDF) on abdominal muscle thickness and strength in patients with chronic low back pain (LBP). Design: Two group pretest posttest design. Methods: Sixteen subjects were divided randomly into two group: ABDF group (n
