Note: (αER) – angle of flexion in foot at ankle joint; (αER) – angle of bend in tail of monofin; (βER) – angle of attack of distal part of fin; (βER) – angle of attack of entire surface of fin (SUM1) - sum of errors estimated for each swimmer; (SUM2) - sum of errors estimated for all swimmers researched; (CV) - coefficient of variation. |