MRI study of the size, symmetry and function of the trunk muscles among elite cricketers with and without low back pain

Hides, Julie; Stanton, Warren R.; Freke, Matt; Wilson, Stephen J.; McMahon, Shaun; Richardson, Carolyn A.

doi:10.1136/bjsm.2007.044024

Cited by 190 publications

(225 citation statements)

References 68 publications

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“…In those without lumbopelvic pain, the TrA thickened 65% to 67%, while the IO thickened only 13% to 18% on average. These findings clearly demonstrate that the ADIM results in preferential changes in TrA thickness in both those with and without lumbopelvic pain and, in conjunction with previous research, 7,12,17,54,59,61 provide an element of construct validity for the ADIM as a motor control exercise that preferentially targets the TrA muscle.…”

supporting

confidence: 63%

Changes in Lateral Abdominal Muscle Thickness During the Abdominal Drawing-in Maneuver in Those With Lumbopelvic Pain

Teyhen

Bluemle²,

Dolbeer³

et al. 2009

J Orthop Sports Phys Ther

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supporting

confidence: 63%

Changes in Lateral Abdominal Muscle Thickness During the Abdominal Drawing-in Maneuver in Those With Lumbopelvic Pain

Teyhen

Bluemle²,

Dolbeer³

et al. 2009

J Orthop Sports Phys Ther

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“…Many studies that have reported muscle asymmetry and strength, have associated these features with the increase of unilateral training [43][44][45]. Similar to this, we expected that thickness asymmetries would be attributed to the increased use of one hand over the other in everyday activities.…”

Section: Discussionsupporting

confidence: 67%

Asymmetry Assessment Using Surface Topography in Healthy Adolescents

Parent

Watkins

et al. 2015

Symmetry

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Abstract:The ability to assess geometric asymmetry in the torsos of individuals is important for detecting Adolescent Idiopathic Scoliosis (AIS). A markerless technique using Surface Topography (ST) has been introduced as a non-invasive alternative to standard diagnostic radiographs. The technique has been used to identify asymmetry patterns associated with AIS. However, the presence and nature of asymmetries in the healthy population has not been properly studied. The purpose of this study is therefore to identify asymmetries and potential relationships to development factors such as age, gender, hand dominance and unilateral physical activity in healthy adolescents. Full torso scans of 83 participants were analyzed. Using Geomagic, deviation contour maps (DCMs) were created by reflecting the torso along the best plane of sagittal symmetry with each spectrum normalized. Two classes of asymmetry were observed: twist and thickness each with subgroupings. Averaged OPEN ACCESSSymmetry 2015, 7 1437 interobserver and intraobserver Kappas for twist subgroupings were 0.84 and 0.84, respectively, and for thickness subgroupings were 0.53 and 0.63 respectively. Further significant relationships were observed between specific types of asymmetry and gender such as females displaying predominately twist asymmetry, and males with thickness asymmetry. However, no relationships were found between type of asymmetry and age, hand dominance or unilateral physical activity. Understanding asymmetries in healthy subjects will continue to enhance assessment ability of the markerless ST technique.

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“…On the other hand, the CSA/LBM 2/3 values of PM and HAM tended to be higher in the sprinters of both genders as compared to the other athletic groups. For adult populations, it has been shown that athletes exhibit specific adaptations to their own competitive styles and/or training regimens in the size of muscles located in the limbs (Kanehisa et al, 1998(Kanehisa et al, , 1999 and trunk (Engstrom et al, 2007;Hides et al, 2008;Kubo et al, 2007). This is true for adolescent athletes (Hoshikawa et al, 2010).…”

Section: Discussionmentioning

confidence: 95%

Sex Differences in the Cross-sectional Areas of Psoas Major and Thigh Muscles in High School Track and Field Athletes and Nonathletes

Hoshikawa

Muramatsu

Iida

et al. 2011

J Physiol Anthropol

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The present study aimed to examine the sex differences in the cross-sectional areas of the psoas major, quadriceps femoris, hamstrings, and adductors in high school track and field athletes and nonathletes. The cross-sectional areas of the psoas major at L4-L5 and three thigh muscles at the mid-thigh were determined in the right side of the body using magnetic resonance imaging in 61 sprinters (29 boys and 32 girls), 50 jumpers (28 boys and 22 girls), 33 throwers (18 boys and 15 girls), and 40 nonathletes (20 boys and 20 girls), aged from 16 to 18 yrs. On the whole, the cross-sectional area for every muscle group was greater in the athletes than in the nonathletes and in the boys than in the girls. The average value of the cross-sectional area for the girls as a percentage of that for the boys in every subject group was lower in the psoas major (57.6-64.7%) than in the thigh muscles (67.8-82.9%). Among the thigh muscles, the muscle group which showed significant sex differences in the ratio of cross-sectional area to the two-third power of lean body mass was limited to the quadriceps femoris in the sprinters and nonathletes and hamstrings in the throwers. However, the ratio for the psoas major was significantly higher in the boys than in the girls in all subject groups. The current results indicate that, although regular participation in sports training during adolescence promotes hypertrophy in the psoas major and thigh muscles in not only boys but also girls, a greater sex difference exists in the muscularity of the psoas major than of the thigh muscles, in athletes and nonathletes.

show abstract

MRI study of the size, symmetry and function of the trunk muscles among elite cricketers with and without low back pain

Cited by 190 publications

References 68 publications

Changes in Lateral Abdominal Muscle Thickness During the Abdominal Drawing-in Maneuver in Those With Lumbopelvic Pain

Changes in Lateral Abdominal Muscle Thickness During the Abdominal Drawing-in Maneuver in Those With Lumbopelvic Pain

Asymmetry Assessment Using Surface Topography in Healthy Adolescents

Sex Differences in the Cross-sectional Areas of Psoas Major and Thigh Muscles in High School Track and Field Athletes and Nonathletes

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