Biomechanics Leave a Comment / Quizzes / By Fatma Qeshta Biomechanics Quiz from physiotherapy secrets book 44 Biomechanics Biomechanics Quiz from Physiotherapy secrets book 1 / 25 Extensor retinaculum in the knee joint A part of capsule None A part of extensor mechanism A part of quadriceps tendon 2 / 25 The vertebral border of scapula is _____________ inches away from midline 2” 2.5” 3.5” 3” 3 / 25 Low back pain patient which muscle is an important contributor to the symptoms Obliques Iliopsoas Hip extensors Erector spine 4 / 25 Stance phase is ___________ % of gait cycle 60 % 70 % 50 % 40 % 5 / 25 Effective lubrication of articular surfaces requires Intermittent compression & distribution a and c Adequate immobilization Congruent articular surface 6 / 25 Which is not a saddle joint? Acromio clavicular Ankle Sternocalvicular Carpometacarpal of thumb 7 / 25 The centre of gravity of adult human is at what % of person’s height 55 % 45 % 60 % 50 % 8 / 25 Compressive forces in normal walking on knee joint is Same as body weight None of the above 4 – 5 times body weight 2 – 3 times body weight 9 / 25 Centre of gravity of adult human in the anatomical position is slightly Posterior to S1 vertebra Anterior to S1 vertebra Posterior to S2 vertebra Anterior to S2 vertebra 10 / 25 50 of genu varum increases the compressive force on medial meniscus to 50 % 25 % 75 % 10 % 11 / 25 Location of centre of mass of body segment is at _____________ % from proximal end 50 % 40% 45 % 55 % 12 / 25 Which structure contribute to abnormal lateral force on patella LCL TFL None of the above IT Band 13 / 25 On unilateral stance the safety zone is limited in Rotatory sway Both a & b Side to side sway Antero-posterior sway 14 / 25 The magnitude of EMG is related to Isometric contraction All the three Eccentric contraction Concentric contraction 15 / 25 Inversion eversion component is more in None of the above Subtalar joint Ankle joint Mild tarsal joint 16 / 25 Which is not a major cause of low back pain Abdominals not supporting the trunk with an eccentric contraction Abdominals not supporting isometrically the trunk Abdominals not preventing anterior pelvic tilt Abdominals not controlling rotation between spine and pelvis 17 / 25 Which is not included in kinesiopathology of patello-femoral dysfunction Insufficient gluteus medius Insufficient performance of vastus medialis Insufficient performance of gluteus maximus Insufficient performance of iliopsoas 18 / 25 In a flexed knee rotation in either direction stretches which structure LCL ACL MCL PCL 19 / 25 The chances of neck of femur fracture is more in Coxa valga Femoral anteversion Coxa vara Femoral retroversion 20 / 25 A subtalar pronation will Q angle will be unchanged Decrease the q angle Increase the q angle None 21 / 25 There may be a rotation of the lumbar spine when the paraspinal side to side difference is greater than 0.5” 2” 1.5” . 1” 22 / 25 EMG can be quantified by measuring the amplitude of Filtered EMG None of the above Rectified EMG Integrated EMG 23 / 25 At completion of flexion vertebral border of scapula should be rotated 30 degrees 60 degrees 50 degrees 45 degrees 24 / 25 When the spine becomes flat there is increased pressure on the Disc Facets Ligaments Body 25 / 25 Which is the key force couple in the scapular motion Trapezius & serratus anterior Deltoid and rotator cuff Deltoid serratus anterior Trapezius deltoid Your score isThe average score is 30% LinkedIn Facebook VKontakte 0% Restart quiz