The purpose of this study was to identify the effects of directional compression tights on muscle fatigue in alpine skiing as characterized by EMG. A retired world cup skier skied two different full days, one with directional compression tights and one without. In the morning and afternoon a single run of controlled turns was made while EMG, plantar pressure, and accelerometer data were collected. Plantar pressure data was used to divide EMG results into individual turns. Mean amplitude for vastus lateralis, adductor longus, rectus femoris, gluteus medius, and gluteus maximus was assessed by mean RMS amplitude of EMG. For a significance level of 0.01, no significant difference in turn times was determined. No significant differences were seen between morning and afternoon runs. A decreased mean RMS for the compression conditions was observed for rectus femoris (p < 0.001) and vastus lateralis (p = 0.005).
Zavala, Linnea; Snyder, Cory; Becker, James; and Seifert, John
"DIRECTIONAL COMPRESSION AND MUSCLE ACTIVITY IN A RETIRED WORLD CUP ALPINE SKIER,"
ISBS Proceedings Archive: Vol. 35
, Article 215.
Available at: http://commons.nmu.edu/isbs/vol35/iss1/215