Cross-sectional area of psoas major muscle and hip flexion strength in youth soccer players

AbstractThis study aimed to investigate the relationship between the maximal anatomical cross-sectional area (ACSA) of the iliopsoas muscle and ball speed in side-foot and instep kicks. The ACSA of the psoas major and iliacus was measured in 29 male collegiate soccer players by using magnetic resonance imaging. They performed maximal side-foot and instep kicks to a stationary ball. The kicked ball speed was measured with a high-speed camera. Ball speed in the side-foot and instep kicks was significantly correlated with body height (side-foot kick: r=0.650, P<0.001; instep kick: r=0.583, P<0.001). After adjustment for body height, the maximal ACSA of the psoas major was significantly correlated with ball speed in the side-foot kick (r=0.441, P=0.017), but not in the instep kick. The maximal ACSA of the iliacus was not correlated with ball speed in side-foot or instep kicks, even after adjustment for body height. Our results suggest that: 1) body height is a significant determinant of the ball speed in side-foot and instep kicks, and 2) for a given body height, the maximal ACSA of the dominant psoas major is a factor that affects the ball speed in side-foot kick.

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Correlations between the Cross-Sectional Area and Moment Arm Length of the Erector Spinae Muscle and the Thickness of the Psoas Major Muscle as Measured by MRI and the Body Mass Index in Lumbar Degenerative Kyphosis Patients

Journal of the Korean Radiological Society ◽

10.3348/jkrs.2006.54.3.203 ◽

2006 ◽

Vol 54 (3) ◽

pp. 203 ◽

Cited By ~ 3

Author(s):

Hyun Lee ◽

Sangjin Lee ◽

Sangho Lee

Keyword(s):

Body Mass Index ◽

Body Mass ◽

Cross Sectional Area ◽

The Body ◽

Erector Spinae ◽

Sectional Area ◽

Moment Arm ◽

Cross Sectional ◽

Psoas Major Muscle ◽

Psoas Major

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Age-related Change In Cross Sectional Area Of The Psoas Major Muscle In Japanese

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000561519.21825.6a ◽

2019 ◽

Vol 51 (Supplement) ◽

pp. 336

Author(s):

Mitsuharu Kaya ◽

Masanori Takemura ◽

Junzo Tsujita ◽

Ken-ich Ichihashi

Keyword(s):

Cross Sectional Area ◽

Sectional Area ◽

Cross Sectional ◽

Age Related ◽

Psoas Major Muscle ◽

Psoas Major

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STUDIES ON MUSCLE METABOLISM AND CROSS-SECTIONAL AREA IN THE ELITE JAPANESE SOCCER PLAYERS USING NMR

Japanese Journal of Physical Fitness and Sports Medicine ◽

10.7600/jspfsm1949.41.368 ◽

1992 ◽

Vol 41 (3) ◽

pp. 368-375

Author(s):

HIROSHI AKIMA ◽

SHIN-YA KUNO ◽

TAKAHIKO NISHIJIMA ◽

TAKEO MARUYAMA ◽

MITSUHIRO MATSUMOTO ◽

...

Keyword(s):

Muscle Metabolism ◽

Cross Sectional Area ◽

Soccer Players ◽

Sectional Area ◽

Cross Sectional

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Comparison of different skeletal muscles from growing domestic pigs and wild boars

Archives Animal Breeding ◽

10.7482/0003-9438-56-076 ◽

2013 ◽

Vol 56 (1) ◽

pp. 766-777 ◽

Cited By ~ 5

Author(s):

D. Lösel ◽

A. Franke ◽

C. Kalbe

Keyword(s):

Skeletal Muscles ◽

Muscle Growth ◽

Biochemical Properties ◽

Cross Sectional Area ◽

Sectional Area ◽

Cross Sectional ◽

Wild Boars ◽

Domestic Pigs ◽

Psoas Major ◽

Fast Twitch

Abstract. The domestication process of pigs was associated with substantial morphological and physiological changes. The aim of this study was to comparatively investigate muscle microstructure and biochemical properties of four different skeletal muscles (M. longissimus, M. semitendinosus, M. psoas major, M. rhomboideus) in growing domestic pigs (n=5) and wild boars (n=4). The superiority of domestic pigs in body and muscle growth at three months of age was reflected by a 4-fold body weight and higher absolute weights of heart, liver and muscles. Relative muscle weights of M. psoas major and M. rhomboideus were reduced, whereas a 1.6-fold heavier M. semitendinosus was observed in domestic pigs compared with wild boars. In addition, the muscle cross-sectional area was greater in all muscles of domestic pigs resulting from about 3-fold fibre cross-sectional area, whereas total fibre number remained unchanged. As a consequence of intensified fibre hypertrophy, the fibre area per capillary is higher in all muscles of domestic pigs. Thus, the impaired supply with oxygen and nutrients may be one reason for the shift to the glycolytic muscle metabolism as indicated by a greater proportion of fast-twitch glycolytic fibres at the expense of fast-twitch oxidative fibres. This is also reflected by a higher ratio of lactate dehydrogenase to isocitrate dehydrogenase activity. Our data suggest that the intensified muscle growth was realized by myofibre hypertrophy at unchanged myofibre number in growing domestic pigs. It seems that domestication-induced changes were most pronounced in M. semitendinosus as the exterior ham muscle which may be related to muscle specific selection for lean growth.

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Age-Related Differences in Hip Flexion Maximal and Rapid Strength and Rectus Femoris Muscle Size and Composition

Journal of Applied Biomechanics ◽

10.1123/jab.2020-0383 ◽

2021 ◽

pp. 1-9

Author(s):

Ahalee C. Farrow ◽

Ty B. Palmer

Keyword(s):

Young Men ◽

Rectus Femoris ◽

Peak Torque ◽

Cross Sectional Area ◽

Muscle Size ◽

Sectional Area ◽

Echo Intensity ◽

Cross Sectional ◽

Age Related ◽

Hip Flexion

This study aimed to examine the effects of age on hip flexion maximal and rapid strength and rectus femoris (RF) muscle size and composition in men. Fifteen young (25 [3] y) and 15 older (73 [4] y) men performed isometric hip flexion contractions to examine peak torque and absolute and normalized rate of torque development (RTD) at time intervals of 0 to 100 and 100 to 200 milliseconds. Ultrasonography was used to examine RF muscle cross-sectional area and echo intensity. Peak torque, absolute RTD at 0 to 100 milliseconds, and absolute and normalized RTD at 100 to 200 milliseconds were significantly lower (P = .004–.045) in the old compared with the young men. The older men exhibited lower cross-sectional area (P = .015) and higher echo intensity (P = .007) than the young men. Moreover, there were positive relationships between cross-sectional area and absolute RTD at 0 to 100 milliseconds (r = .400) and absolute RTD at 100 to 200 milliseconds (r = .450) and negative relationships between echo intensity and absolute RTD at 100 to 200 milliseconds (r = −.457) and normalized RTD at 100 to 200 milliseconds (r = −.373). These findings indicate that hip flexion maximal and rapid strength and RF muscle size and composition decrease in old age. The relationships observed between ultrasound-derived RF parameters and measurements of RTD suggest that these age-related declines in muscle size and composition may be relevant to hip flexion rapid torque production.

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