The purpose of this study was to compare force calculated using accelerometer data from the SHIMMER device, with force platform data on countermovement and drop jumps. Twelve physically active adults performed 5 counter movement jumps and 5 drop jumps from a height of 0.30 m. An accelerometer was attached near the participant`s centre of mass and simultaneous force and acceleration data were obtained for the jumps. Minimum eccentric force and peak concentric force were calculated concurrently for countermovement jumps and peak landing forces were calculated concurrently for drop jumps. The results showed moderate to poor levels of agreement in forces and a consistent systematic bias between the results from the force platform and accelerometer.
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