D

Definition:

The core is an anatomical box made up of several muscle groups. Core exercises can prevent the risk of musculoskeletal disorders by reducing risk of injury. Training the core can help posture, injury risk, and improve physical performance by increasing stability and balance. 

Guidelines:

Engage the core to stabilize spinal column and pelvis to not hurt yourself and enhance your posture while performing core exercises.

According to the CDC, core strengthening exercises fall under muscle-strengthening activities and should be performed on 2 or more days a week that work all major muscle groups (legs, hips, back, abdomen, chest, shoulders, and arms).

• Do 8-12 repetitions per activity, which equals one set.
• Do at least one set of muscle-strengthening activities.
• To gain even more benefits, increase to two or three sets.

Video