A WEARABLE SYSTEM TO MEASURE SPEED AND PHASE DURATIONS DURING EACH CYCLE OF CLASSICAL CROSS-COUNTRY SKIING Fasel

INTRODUCTION: Analyzing speed and temporal characteristics is critical to understand the biomechanics and improve athlete performances in cross-country skiing. Currently, these analyses are mainly performed in research labs using heavy instrumentation and there is a need for simpler systems allowing measurement in natural environment. Furthermore, for optimal analyses, it is important to obtain data for each cycle independently and to have systems simple enough that they can be used without assistance during every-day practice. This study aimed to design and validate such a wearable device for the diagonal stride.