FSI Football Science Update

Perspectives of the barriers and enablers to nutritional adherence in professional male academy football players.

Carter JL, Lee DJ, Ranchordas MK, Cole M.

Sci Med Footb. 2022 Sep 9. doi: 10.1080/24733938.2022.2123554.

This study used interviews with 13 professional young players, 12 sports nutritionists, and 10 coaches finding 7 key themes relating to the young players’ barriers and enablers to nutritional adherence: (1) Capability: (a) Nutritional Knowledge; (b) Cooking Skills; (2) Opportunity: (c) Training Venue Food Provision; (d) Nutritionist Accessibility and Approachability; (e) Living Status: (3) Motivation: (f) Performance Implications; and (g) Role Modelling. Inadequate food provision within the training and home environment, and limited time with the sports nutritionist were key barriers to nutritional adherence.


Hip and knee joint angle patterns and kicking velocity in female and male professional soccer players: A principal component analysis of waveforms approach.

Navandar A, Kipp K, Navarro E.

J Sports Sci. 2022 Sep 8:1-12. doi: 10.1080/02640414.2022.2121022.

This study in 23 female and 19 male professional soccer players with hip and knee motion capture found that better instep kicking performance in male players was associated with a greater difference between the hip extension at the end of the backswing and the hip flexion at the end of the follow-through phase, and a delayed internal rotation of the hip, while no significant correlations between ball velocity and hip and knee kinematics were found for female players.


Inter-limb asymmetries and kicking limb preference in English Premier League soccer players.

Nicholson G, Bennett T, Thomas A, Pollitt L, Hopkinson M, Crespo R, Robinson T, Price RJ.

Front Sports Act Living. 2022 Aug 17;4:982796. doi: 10.3389/fspor.2022.982796. eCollection 2022.

This study in 22 players from an EPL club found that players displayed the greatest level of asymmetry in isokinetic strength measures (5.9-12.7% higher in the preferred kicking leg), and lower levels of asymmetry in gait (1.6-7.7%), jump (0.9-7.0%) and CoD (1.9-3.5%) assessments.