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