The influence of the coaches’ demographics on young swimmers’ performance and technical determinants

Abstract

The purpose of this study was to understand the relationship between the coaches’ demographics (academic degree and/or coaching level and/or coaching experience) and young swimmers’ performance and technical ability. The sample was composed by 151 young swimmers (75 boys and 76 girls: 13.02 1.19 years old, 49.97 8.77 kg of body mass, 1.60 0.08 m of height, 1.66 0.09 m of arm span), from seven different clubs. Seven coaches (one per club) were responsible for the training monitoring. Performance and a set of biomechanical variables related to swim technique and efficiency were assessed. The swimmers’ performance was enhanced according to the increase in the coaches’ academic degree (1: 75.51 10.02 s; 2: 74.55 9.56 s; 3: 73.62 7.64 s), coaching level (1: 76.79 11.27 s; 2: 75.06 9.31 s; 3: 73.65 8.43 s), and training experience ( 5-y training experience: 75.44 9.57 s; >5- y training experience: 74.60 9.54 s). Hierarchical linear modeling retained all coaches’ demographics characteristics as main predictors (being the academic degree the highest: estimate = -1.51, 95% confidence interval = -0.94 to -2.08, p = 0.014). Hence, it seems that an increase in the demographics of the coaches appears to provide them with a training perspective more directed to the efficiency of swimming. This also led to a higher performance enhancement