The aim of this independent study was to further investigate the mechanical and metabolic energetics of using Q-Rings during cycling.Ten elite male road cyclists completed 5-min cycling bouts at 80 RPM at 100, 200 and 300 W using a standard circular chainring and 52-tooth Q-Ring set in two positions: ‘#1’ and ‘#5’. Oxygen consumption was converted to metabolic power. Tangential and radial crank forces and crank position were measured using Axis Cranks (SPE, Carole Park, Australia).
Results? Results suggested no significant differences were found between the chainrings for total metabolic power or the physiological estimate ofinternal mechanical power (IP)http://www.jsc-journal.com/ojs/index.php?journal=JSC&page=article&op=view&path%5B%5D=202
Internal Mechanical Power During Cycling Using Non-Circular Versus Circular Chainrings