1 An utterance is a natural unit of speech bounded by breaths or pauses. 2  An utterance is a complete unit of talk, bounded by the speaker 's silence.
The best time to do flexibility exercises is when your muscles are already warm so they can stretch farther without tightness or pain. If youâre doing only stretching exercises, warm up with a few minutes of easy walking first to warm up your muscles.
For example, if you stretch your hamstrings, make sure to also stretch your quadriceps and gluteal muscles, and your inner and outer thighs. Stretching is most effective when you hold your muscle at its longest length for 15 seconds to one minute or longer. Relax into your stretch, and do not bounce.