Accelerometery and heart rate responses of professional fast-medium bowlers in one-day and multi-day cricket

The physical demands of fast-medium bowling are increasingly being recognised,yet comparative exploration of the differing demands between competitive formats (i.e. one-day [od] versus multi-day [md] matches) remain minimal. the aim of this study was to describe in-match physiological profiles of professional fast-medium bowlers from england across different versions of competitive matches using a multivariable wearable monitoring device. seven professional cricket fast-medium bowlers wore the bioharness™ monitoring device during matches,over three seasons (>80 hours in-match). heart rate (hr) and accel-eromety (acc) was compared across match types (od,md) and different in-match activity states (bowling,between over bowling,fielding). peak acceleration during od bowling was significantly higher in comparison to md cricket ([od vs. md] 234.1 ± 57.9 vs 226.6 ± 32.9 ct·episode-1,p < 0.05,es = 0.11-0.30). data for acc were also higher during od than md fielding activities (p < 0.01,es = 0.11-.30). od bowling stimulated higher mean hr responses (143 ± 14 vs 137 ± 16 beats·min-1,p < 0.05,es = 0.21) when compared to md matches. this increase in od cricket was evident for both between over (129 ± 9 vs 120 ± 13 beats·min-1,p < 0.01,es = 0.11-0.50) and during fielding (115 ± 12 vs 106 ± 12 beats·min-1,p < 0.01,es = 0.36) activity. the increased hr and acc evident in od matches suggest greater acute physical loads than md formats. therefore,use of wearable technology and the findings provided give a valuable appreciation of the differences in match loads,and thus required physiological preparation and recovery in fast-medium bowlers. © journal of sports science and medicine.