TY  - BOOK
AU  - Ayman Goda Mohammed Matar
AU  - Ahmed Hassan Hussein , 
AU  - Ghada Mohamed Elhafez , 
TI  - Mechanical analsis of squat and stoop lifting with known and unknown load center of mass location / 
PY  - 2010///
CY  - Cairo : 
PB  - Ayman Goda Mohammed Matar , 
KW  - COM location
KW  - Load knowledge
KW  - Squat and stoop lifing
N1  - Thesis (Ph.D.) - Cairo University - Faculty of Physical Therapy - Department of Biomechanics; Issued also as CD
N2  - Lifting an object with incorrect load knowledge may lead low back pain and injuries . The purpose of this study was to examine the effects of different locations of load's COM and load knowledge on the erector spinae EMG and trunk kinematics during squat and stoop lifting tasks . Lumbar erector spinae EMG and trunk kinematics ( ROM and velocity ) were collected from 30 subjects ( mean age 19.4 years -+(1.3), mean height 175.8cm-+(5.1) and mean weight 72.4 kg-+(10)
ER  -