From: The Quantification of Acceleration Events in Elite Team Sport: a Systematic Review
Acceleration/deceleration metric | Unit of measure | Metric definition | % of studies featuring metric | Reference |
---|---|---|---|---|
Counts | Counts (number) | Efforts in respective threshold band | 62.9% | [7, 13, 17, 34, 36,37,38,39,40, 42,43,44, 47,48,49,50, 52, 54, 55, 57, 59, 60, 62, 64,65,66, 69,70,71,72, 76,77,78,79,80, 88,89,90, 92, 94,95,96,97,98,99, 101,102,103, 105,106,107,108,109,110,111,112,113, 116, 117, 119, 120, 122,123,124, 126,127,128, 136,137,138,139,140,141, 144,145,146,147,148] [36,37,38,39, 51, 53, 56, 59, 63, 66, 69, 71, 73, 74, 84,85,86, 88, 89, 101,102,103, 108, 109, 112,113,114,115, 118, 121,122,123,124, 129, 130, 137, 138, 140] |
Counts (number) per minute | Efforts in respective threshold band with respect to activity time | 31.7% | ||
Counts (absolute and relative) | Overall absolute and relative count contribution to review | 71.8% | ||
Distance | Metres | Acc/Dec distance attained in respective threshold band | 13.7% | [7, 32, 33, 35, 40, 41, 45, 57, 67, 68, 79, 87, 93, 113, 125, 142, 143] |
Per minute | Distance in respective threshold band with respect to activity time and threshold | 3.3% | ||
Per hour | Distance attained in respective threshold band | 0.8% | [46] | |
Acceleration | m s− 2 | Intensity metric of any magnitude of acc over given analysis period. | 6.7% | |
Deceleration | m s−2 | Intensity metric of any magnitude of dec over given analysis period. | 4.2% | |
Acceleration Density Index | Avg Acc/Dec per 10 m; m s− | Average acceleration performed per 10 m of distance covered (Acceleration Load/Distance) | 0.8% | [45] |
Acceleration Load | Total Acc/Dec; m s−2 | Sum of acceleration values across the analysed period Average absolute value of all acc/dec data relative to a defined period. Absolute value multiplied by defined duration to convert to load metric | 0.8% | [45] |
AU | 0.8% | [135] | ||
Average Accel/Decel | (m s−2) | Absolute acceleration/deceleration values averaged across the specified period | 9.2% | |
Time | Seconds | Time in respective threshold band | 4.2% | |
% time | Time spent as a percentage in respective threshold band | 0.8% | [84] | |
% time per minute | Percentage time spent in respective threshold band with respect to activity time and threshold | 1.7% | ||
Minutes per count | Efforts in respective threshold band with respect to activity time | 2.5% | ||
Ratio of Dec:Acc | Ratio Dec:Acc | Duration of Dec (High) and Dec (Mod) divided by total Acc time (High + Mod) in each period. | 0.8% | [104] |