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- W2520308243 abstract "Power output (PO) testing of athletes has been a central topic for the sports community, with common debates about the “Gold Standard” to predict sports performance. Despite its technical and conceptual constraints, the Bosco Test—using repeated vertical jumping—has outlasted many others due to its practicality and reliability. The test results, however, do not reflect expected PO differences from widely different athletes. PURPOSE: To compare average power output (APO) results as calculated directly from instantaneous vertical ground reaction forces (IVGRFs), with the Bosco Test APO. METHODS: 18 sedentary adult males (21.6±2.4 years, 67.2±11.3 kg, 1.77±0.05 m), 6 volleyball players (22.0±3.4 years, 72.3±12.5 kg, 1.84±0.10 m), 6 marathon runners (30.8±7.7 years, 73.2±11.0 kg, 1.75±0.05 m), and 6 swimmers (32.2±6.91 years, 78.8±4.6 kg, 1.77±0.06 m) performed a 60-s Bosco Test on a Force Plate. Total time in the air, total number of jumps, and IVGRFs were recorded from the force plate signal. APO (Watts/kg) was calculated from ‘efficient’ IVGRF using both the conventional Bosco methodology and PotevAA, our proposed method, for the same trials. Two-way ANOVAs with repeated measures were used to compare APO for the different groups and between methods. RESULTS: APO was greater for Bosco (15.8±1.9 Watts/kg) than for PotevAA (8.0±1.8 Watts/kg) over the full 60s of the protocol (p<0.0001), as well as for each 15 s interval (p<0.0001). Both methods detected differences among sport groups (p<0.0001), but no differences were found between athletes (Bosco: 16.02±1.97 Watts/kg, PotevAA: 8.38±1.85 Watts/kg) and sedentary participants (Bosco: 15.58±1.88 Watts/kg, PotevAA: 7.56±1.63 Watts/kg, main effect p = 0.15; interaction p = 0.65). CONCLUSIONS: Contrary to our expectations, APO differences detected by PotevAA were even smaller than those detected by Bosco; neither test discriminated satisfactorily among groups. We failed to show that PotevAA, a theoretically sound method to calculate APO directly from IVGRF during the positive vertical impulse of a 60-s jump series, could improve the conventional Bosco calculation." @default.
- W2520308243 created "2016-09-23" @default.
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- W2520308243 date "2016-05-01" @default.
- W2520308243 modified "2023-10-14" @default.
- W2520308243 title "Can We Improve The Bosco Test? A Biomechanical Analysis" @default.
- W2520308243 doi "https://doi.org/10.1249/01.mss.0000487208.03467.98" @default.
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