“…A meta-analysis was not performed due to the heterogenous characteristics of the included studies in terms of study design (observational, [38,39] cohort, [40,41], cluster RCT [42,43]), sport,(rugby [42,43,41] and mixed sports [38][39][40]), age of athletes (adolescents [38,40,42] and adults [39,41,43]) as well as differences in injury definitions and intervention characteristics which would have resulted in spurious pooling of injury risk estimates. Data were explored qualitatively for the relationship between neck strength and sport-related head and neck injuries.…”