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Sex-Related Differences of Weight Bearing and Non-Weight Bearing Muscle Properties.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Sex-Related Differences of Weight Bearing and Non-Weight Bearing Muscle Properties./
作者:	Nabavizadeh, Omid.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	116 p.
附註:	Source: Masters Abstracts International, Volume: 83-02.
Contained By:	Masters Abstracts International83-02.
標題:	Health education. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28540237
ISBN:	9798534681772

Sex-Related Differences of Weight Bearing and Non-Weight Bearing Muscle Properties.
Nabavizadeh, Omid.

Sex-Related Differences of Weight Bearing and Non-Weight Bearing Muscle Properties. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 116 p.

Source: Masters Abstracts International, Volume: 83-02.

Thesis (M.S.Ed.)--University of Kansas, 2021.

This item must not be sold to any third party vendors.

The purpose of this study was to evaluate muscle composition, quality, and strength of non-weight bearing and weight bearing muscles between males and females. Twenty-eight, healthy males (n=14; mean±SD; age=25.1±4.2years; height=181.9±10.6cm; weight=91.6±17.2kg) and females (n=14; age=25.0±3.4years; height=165.9±6.9cm; weight =66.0±10.2kg) underwent body composition assessment to estimate body fat (%BF) and total- body, arm, and leg fat-free mass (TFFM, ArmFFM, and LegFFM, respectively) and muscle composition via B-mode ultrasound to measure muscle cross-sectional area, echo intensity, and thickness (mCSA, EI, and MT, respectively) of four muscles [rectus femoris (RF), vastus lateralis (VL), flexor digitorum superficialis (FDS), and flexor carpi radialis (FCR)]. Additonally, upper- [handgrip strength (HG)] and lower-body [leg extension (LE)] maximal strength were measured, recorded, and expressed relative to FFM to determine muscle quality (MQ) for the dominant arm and leg, respectively. Males had greater TFFM, ArmFFM, and LegFFM (p<0.001), mCSA for RF, VL, FCR, and FDS (p<0.001), and MT for RF, VL (p<0.001 - 0.006). Females had greater EI for RF, VL, and FDS (p=0.003-0.01). Negative correlations were identified between EI and MQ for all muscles in males and females, however, no significance was determined. Stepwise linear regression identified ArmFFM as predictors for HG (p<0.001) and no significance was found for LE in males, whereas, no good predictor was identified to estimate HG in females, yet LegFFM (p=0.012) was the best predictor of LE. In conclusion, despite the sex differences in absolute strength and size, muscle quality (relative strength) was not different for the upper nor lower body.

ISBN: 9798534681772Subjects--Topical Terms:

559086
Health education.
Subjects--Index Terms:

Muscle composition

Sex-Related Differences of Weight Bearing and Non-Weight Bearing Muscle Properties.
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300 $a 116 p.
500 $a Source: Masters Abstracts International, Volume: 83-02.
500 $a Advisor: Herda, Ashley A.
502 $a Thesis (M.S.Ed.)--University of Kansas, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a The purpose of this study was to evaluate muscle composition, quality, and strength of non-weight bearing and weight bearing muscles between males and females. Twenty-eight, healthy males (n=14; mean±SD; age=25.1±4.2years; height=181.9±10.6cm; weight=91.6±17.2kg) and females (n=14; age=25.0±3.4years; height=165.9±6.9cm; weight =66.0±10.2kg) underwent body composition assessment to estimate body fat (%BF) and total- body, arm, and leg fat-free mass (TFFM, ArmFFM, and LegFFM, respectively) and muscle composition via B-mode ultrasound to measure muscle cross-sectional area, echo intensity, and thickness (mCSA, EI, and MT, respectively) of four muscles [rectus femoris (RF), vastus lateralis (VL), flexor digitorum superficialis (FDS), and flexor carpi radialis (FCR)]. Additonally, upper- [handgrip strength (HG)] and lower-body [leg extension (LE)] maximal strength were measured, recorded, and expressed relative to FFM to determine muscle quality (MQ) for the dominant arm and leg, respectively. Males had greater TFFM, ArmFFM, and LegFFM (p<0.001), mCSA for RF, VL, FCR, and FDS (p<0.001), and MT for RF, VL (p<0.001 - 0.006). Females had greater EI for RF, VL, and FDS (p=0.003-0.01). Negative correlations were identified between EI and MQ for all muscles in males and females, however, no significance was determined. Stepwise linear regression identified ArmFFM as predictors for HG (p<0.001) and no significance was found for LE in males, whereas, no good predictor was identified to estimate HG in females, yet LegFFM (p=0.012) was the best predictor of LE. In conclusion, despite the sex differences in absolute strength and size, muscle quality (relative strength) was not different for the upper nor lower body.
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650 4 $a Population. $3 518693
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650 4 $a Fitness equipment. $3 3563152
650 4 $a Older people. $3 761975
650 4 $a Kinases. $3 3558077
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650 4 $a Gene expression. $3 643979
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