The warm up phase can be extended, especially when it is cold. Increase the number of repetitions for each exercise. Do not go into the main circuit till such time that you feel warmed up and ready.
Types Of Warm Ups:
1. Related Warmups: These warm ups are related to the specific fitness routine or sport that you are practicing. A warm-up generally consists of a gradual increase in intensity in physical activity (related activity). For example, before running or playing an intense sport one might slowly jog to warm muscles and increase heart rate. It is important that warm ups should be specific to the exercise that will follow, which means that exercises (of warm up) should prepare the muscles to be used and to activate the energy systems that are required for that particular activity.
2. Unrelated Warm Up: Movements which are not related to your sport or fitness activity in a slow steady manner fall under this category eg. flexibility exercises for example.
3. General Warmup: The general warm-up involves movements that aren’t related to the specific exercises you’ll perform in your workout. These are basic activities that require movement of the major muscle groups. Generally, gross motor patterns are emphasized first in a warm-up before moving to fine motor patterns that enhance performance. Basically, a general warm-up should be intense enough to increase body temperature and cause mild perspiration, but not to a point of fatigue.