National Exams May 2019 — 04-Bio-A4, Biomechanics. 3 hours, open book
(any non-communicating calculator permitted). FOUR (4) questions constitute a
complete exam paper; each is of equal value (15 marks).
Question 4's arm figure is read as 300 mm at 60° and 350 mm horizontal. The marking-scheme line for Question 2 prints a stray digit (“c) 5 4 marks”) although Question 2 has only three sub-parts; this solution uses the 5 marks per sub-part that the question text states (5 + 5 + 5 = 15).
Check — subject-identity note: every page of the paper is headed and footed “04-BIO-A4, May 2019” and the cover page itself states the subject as “04-Bio-A4, Biomechanics”. All four questions (knee-joint structure/kinematics, glenohumeral joint statics, ligament mechanical behaviour, upper-limb inverse dynamics) are genuine Biomechanics content. This solution follows the paper's true subject and cites biomechanics references accordingly.
Reference texts: Winter, Biomechanics and Motor Control of Human
Movement (4th ed.); Zatsiorsky, Kinematics of Human Motion; Nordin &
Frankel, Basic Biomechanics of the Musculoskeletal System (5th ed.).
