Temporal patterns of physical activity in Olympic dinghy racing

Area of Science:

• Sports Science
• Biomechanics
• Kinesiology

Background:

• Olympic dinghy sailing is a physically demanding sport.
• Understanding the temporal patterns of physical activity is crucial for optimizing athlete performance and training.

Purpose of the Study:

• To determine the temporal patterns of physical activity in four classes of Olympic racing dinghies.
• To quantify the duration, frequency, and nature of physical activities during simulated races.

Main Methods:

• A descriptive, field-based study involving nineteen elite New Zealand sailors.
• Video recording and notational analysis were used to quantify sailor activities during simulated races.
• Calculated accumulated percentages of time spent in various positions (sitting, hiking) and performing actions (trimming, tacking).

Main Results:

• Up-wind sailing: Most time spent hiking upright while trimming mainsheet (29-66%).
• Off-wind sailing: Most time spent sitting upright while trimming mainsheet (29-55%).
• Hiking upright occurred most frequently up-wind; sitting upright occurred most frequently off-wind.

Conclusions:

• Hiking is the most physically demanding aspect of Olympic yacht racing, particularly in winds exceeding 8 knots.
• Physical demands are lower off-wind, except for arm/shoulder power needed for mainsheet pumping.
• Findings inform the design of sport-specific physical conditioning programs for Olympic sailors.