Load Structure and Load Reactions of Halfpipe and Mini-Ramp Skating
Völker K, Sindermann A, Thorwesten L, Mooren FCh, FrommeA
Abstract in digital collection (conference)
Abstract
Most publications in the field of stunt skating are related to traumatology topics while knowledge about performance aspects is limited. The goal ofthe investigation was to evaluate load structure in halfpipe and mini-ramp skating. 12 Skate boarders and 10 inline skaters at the middle age of 21.2 ±5.7 years were observed in the halfpipe (2/3) and in the mini-ramp (10/7) for 60 minutes. The following parameters were measured: Number and duration of run, number and length of the brakes, heart rate (continuously), lactate rate (at rest, after 30 and after 60 min). Within 60 minutes skate boarders and inline skaters performed 37 and 31 runs, respectively. The median of the run length was at 17 and 18 seconds, the length of intermission at 52 and 60 seconds. Lactate concentration rises to 3.75 for the skate boarder group and 5.67 mmol/1 for the inline skate group after 30 min, respectively, 2.96 and 5.36 mmol/1 after 60 min. The corresponding average heart rate reached 164 and 176bpm, the maximum values obtained were 183 and 190 bpm. Despite a shorter run length, both lactate and heart rate values were found to be slightly higher in the half pipe compared to mini-ramp. Stunt skating causes a middle metabolic, however an almost maxi mum cardiac load. The higher values of the inline skating group are attributed to different amounts of muscular work. High values measured in the halfpipe rnight be caused by the compensation of !arger centrifugal forces.
Details zur Publikation
Release year: 1999
Language in which the publication is written: English