Anaerobic exercises are high-intensity workouts that help in boosting metabolism and increasing muscle mass. These exercises rely on energy sources that are stored in the muscles and are not dependent on oxygen, making them short and intense. Here are seven of the best anaerobic exercises to enhance your metabolic rate:

1. Sprinting: Short bursts of high-intensity running boost your metabolism significantly. Sprint intervals can be done on a track, up hills, or on a treadmill.

2. High-Intensity Interval Training (HIIT): Alternating short periods of intense aerobic exercise with less intense recovery periods. HIIT workouts can be modified with various exercises such as burpees, jump squats, or mountain climbers.

3. Weightlifting: Lifting heavy weights increases muscle mass, which in turn speeds up your basal metabolic rate. Compound movements like deadlifts, squats, and bench presses are particularly effective.

4. Kettlebell Swings: A dynamic movement that combines cardiovascular, strength, and flexibility training. It targets multiple muscle groups and boosts heart rate quickly.

5. Plyometrics: Also known as jump training or plyos, these exercises involve exerting maximum force in short intervals, increasing strength and muscle power. Examples include jump squats and box jumps.

6. Tabata Training: A form of high-intensity interval training that includes 20 seconds of ultra-intense exercise followed by 10 seconds of rest, repeated eight times for a total of four minutes.

7. Resistance Band Exercises: Using bands can provide constant tension on the muscles, increasing the intensity of the workout. Movements like band rows or band push-downs can be highly beneficial for muscle building.

Including these anaerobic exercises into your fitness routine can lead to improved strength, more muscle mass, better endurance, and a faster metabolism. Remember to consult with a professional before starting any new workout regimen to ensure it is suitable for your health condition and fitness level.