Which motor task type is a single arm curl with weight?

Which motor task type is a single arm curl with weight?

• A. Discrete
• B. Continuous
• C. Serial
• D. Open

Answer: (A)

Discrete movements have a defined start and end. A single arm curl with weight is one isolated motion: you begin from the starting position, curl the weight, and finish at the planned endpoint. There’s a clear beginning and end, with no ongoing flow, so it isn’t continuous. It isn’t a sequence of multiple actions performed in order, so it isn’t serial. Since this curl is typically done in a stable setup without needing to react to unpredictable surroundings, it’s a closed skill rather than an open one.

Discrete movements have a defined start and end. A single arm curl with weight is one isolated motion: you begin from the starting position, curl the weight, and finish at the planned endpoint. There’s a clear beginning and end, with no ongoing flow, so it isn’t continuous. It isn’t a sequence of multiple actions performed in order, so it isn’t serial. Since this curl is typically done in a stable setup without needing to react to unpredictable surroundings, it’s a closed skill rather than an open one.