Table 2. Activity profile (mean ± SD) for each quarter of lacrosse match play. Quarter AT MD DF P-value Effect size Distance (m) 1 1638 ± 202 759 ± 253 1346 ± 516 Interaction (quarter × position): 0.741 Main effect Quarter: 0.557 Position: <0.001 0.077 2 1377 ± 663 791 ± 350 1184 ± 526 3 1358 ± 423 710 ± 306 1105 ± 413 0.092 4 1131 ± 534 763 ± 296 1237 ± 401 0.779 Average speed (m/min) 1 71 ± 11 105 ± 16 98 ± 39 Interaction (quarter × position): 0.503 Main effect Quarter: 0.264 Position: <0.001 0.114 2 74 ± 9 107 ± 16 86 ± 28 3 73 ± 7 116 ± 17 93 ± 26 0.169 4 69 ± 9 112 ± 11 82 ± 24 0.907 HSD (m) 1 218 ± 184 248 ± 138 271 ± 158 Interaction (quarter × position): 0.897 Main effect Quarter: 0.853 Position: 0.105 0.049 2 250 ± 161 277 ± 122 281 ± 179 3 215 ± 149 266 ± 117 239 ± 107 0.036 4 226 ± 103 288 ± 133 221 ± 162 0.276 HSD ratio (%) 1 19 ± 5 32 ± 9 29 ± 17 Interaction (quarter × position): 0.996 Main effect Quarter: 0.614 Position: <0.001 0.014 2 19 ± 4 35 ± 9 27 ± 12 3 20 ± 4 38 ± 9 26 ± 13 0.081 4 21 ± 8 37 ± 9 22 ± 12 0.851 LI decelerations (n) 1 127 ± 11 54 ± 17 121 ± 61 Interaction (quarter × position): 0.076 Main effect Quarter: 0.792 Position: 0.002 0.229 2 104 ± 53 50 ± 21 95 ± 46 3 100 ± 32 51 ± 24 91 ± 43 0.047 4 90 ± 48 52 ± 24 111 ± 41 0.593 MI decelerations (n) 1 13 ± 4 9 ± 4 13 ± 7 Interaction (quarter × position): 0.602 Main effect Quarter: 0.175 Position: <0.001 0.098 2 14 ± 7 9 ± 4 10 ± 5 3 11 ± 4 7 ± 4 10 ± 4 0.206 4 10 ± 5 10 ± 5 12 ± 5 0.843 LI accelerations (n) 1 109 ± 10 52 ± 15 107 ± 59 Interaction (quarter × position): 0.795 Main effect Quarter: 0.379 Position: <0.001 0.068 2 90 ± 46 49 ± 22 80 ± 39 3 86 ± 28 46 ± 22 85 ± 41 0.134 4 75 ± 36 50 ± 23 104 ± 35 0.819 MI accelerations (n) 1 15 ± 4 11 ± 5 16 ± 6 Interaction (quarter × position): 0.543 Main effect Quarter: 0.458 Position: 0.543 0.108 2 15 ± 7 10 ± 4 12 ± 6 3 13 ± 4 9 ± 5 12 ± 6 0.114 4 13 ± 5 10 ± 4 14 ± 6 0.497 HSD = high-speed running distance (>14.4 km/h). HSD ratio = HSD/Distance; LI = low intensity; MI = moderate intensity; Acceleration/deceleration zones: low intensity = 0–1.99 m/s2; moderate intensity = 2–3.99 m/s2