Fp4060 10

Anthropometric data were evaluated with a balance – Seca® 760 (1 kg accuracy), and a stadiometer - Seca® 222 (1 mm accuracy). Dorsiflexion range of motion was assessed with a fluid-filled inclinometer with 1° increments (MIE Medical Research Ltd, Leeks, UK) (Rabin et al., 2015 (link)). The Ankle Instability Instrument was designed to classify individuals with CAI and has been shown to be a reliable and valid tool (Docherty et al., 2006 (link); Silva et al., 2018 ). The values of the vertical component of ground reaction forces (Fz) were used to identify the contact period of the foot with the artificial grass and were acquired using two force plates at a sampling rate of 1000 Hz (FP4060-08 and FP4060-10 models from Bertec Corporation (USA), connected to a Bertec AM 6300 amplifier and to an analogue board, from Qualisys, Inc., Sweden) (Silva et al., 2017a ). The Qualisys motion capture system (four cameras Oqus 1) with an acquiring frequency of 100 Hz was also used to analyse the distance travelled by a marker placed at the calcaneus. The platforms were covered by the 3^rd generation artificial grass carpet consisting of polyethylene/polypropylene filaments of 40-65 mm and filled with silica and rubber (Sterzing et al., 2010 ). Qualisys Track Manager software, 2.7 version, was used for analysis.