1. __ are activities intense enough heart rate above your threshold of training and into your target zone (1 Point) Vigorous aerobic activities Heart rate increases Anaerobic exercises

## Step 1<br />The problem is asking us to identify the type of activities that can increase your heart rate above your training threshold and into your target zone. The options provided are: Vigorous aerobic activities, Heart rate increases, and Anaerobic exercises.<br /><br />## Step 2<br />We need to understand what each of these options means. Vigorous aerobic activities are exercises that require a large amount of effort and cause rapid breathing and a substantial increase in heart rate. Examples include running, swimming, and cycling at a fast pace.<br /><br />## Step 3<br />Anaerobic exercises, on the other hand, are high-intensity activities where the body's demand for oxygen exceeds the oxygen supply available. These exercises also increase heart rate, but they are not typically associated with reaching a target heart rate zone.<br /><br />## Step 4<br />The option "Heart rate increases" is not a type of activity, but rather a physiological response to exercise. It does not describe a type of activity that can increase your heart rate.<br /><br />## Step 5<br />Based on the above analysis, the correct answer is "Vigorous aerobic activities". These activities are intense enough to increase your heart rate above your training threshold and into your target zone.