Your strength in the targeted area will improve dramatically. Isometric exercises take off inches from your waist. They may even decrease high blood pressure.
Do them anytime and anywhere. No special equipment needed. Whenever you have 10 seconds to spare. You can turn a regular exercise into an isometric one. Pause and hold somewhere along the range of movement for a few seconds.
Tighten your muscle as much as you can. Keep breathing naturally. And keep your contraction to 10 seconds.
Isometric exercises only increase muscle strength in the exact position you are holding. Not the entire range of motion. Supplement them with other strength training.
Isometrics are not for everybody. They restrict blood flow and can cause a rise in blood pressure. They can be unsafe if you have heart disease or high blood pressure. Or if you are pregnant. If you fall into one of these categories, check with your doctor first. If you experience unusual symptoms (headache, nausea, or dizziness), stop. Check with your doctor.