RT Journal Article
SR Electronic
T1 183 Acute fatigue effects after small-sided games on functional asymmetry and short sprint performance in young soccer players
JF British Journal of Sports Medicine
JO Br J Sports Med
FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
SP A71
OP A72
DO 10.1136/bjsports-2021-IOC.168
VO 55
IS Suppl 1
A1 Italo Sannicandro
A1 Giacomo Cofano
A1 Anna Rosa Rosa
A1 Paolo Traficante
A1 Andrea Piccinno
YR 2021
UL http://bjsm.bmj.com/content/55/Suppl_1/A71.3.abstract
AB Background Lower limb strength asymmetry (SA) is monitored to reduce the injury risk in the young player. Asymmetry values values greater than or equal to 15% indicate a potential injury risk (Noyes et al., 1991). Small-Sided Games (SSG) are widespread in youth training but not all load effects have been analyzed (Kunz et al., 2019).Objective To describe the fatigue effects on lower limb SA values and sprint values after each SSG series.Design Within subject repeated measures design.Setting Youth soccer. Patients (or Participants) n=16 regional level young players (12.1±0.9years, 43.8±8.3kg, 147.8±9.3cm)Interventions (or Assessment of Risk Factors) The sample was evaluated after the warm-up of 15 minutes and 10 minutes of mastery ball exercises, and at the end of each series (3) of 4vs4 (duration: 3 minutes, rec: 2 ‘field: 24x36 meters, with encouragement of staff and 30 balls available) through Hop Test (HT), Side Test (ST), Crossover Test (CT), 5 meters sprint (5M).Main Outcome Measurements Asymmetry value was calculated using the formula: (Non-Dominant Leg/Dominant Leg)x100 (Ceroni et al., 2012).Results The results are summarized as follows:View this table:Abstract 183 Table 1 Conclusions The jumps with frontal plane displacement and those on the two planes (the CT is perfomed by jumping simultaneously on the sagittal and frontal plane) have the highest asymmetry values and seem influenced by post-SSG fatigue. Sprint values undergo acute decreases in performance too.