In fitness rowing movements, proper posture is essential for workout effectiveness and avoiding injury. Here are some tips to help you get in shape. 
First, keep your body straight and your back slightly bent, which will protect your lower back and reduce pressure on your back. Hold your feet on the footpegs and keep your knees slightly bent and stable. At the same time, hold the handles of the rowing machine with both hands in a straight or slightly bent arm, adjusting to your personal strength and comfort.
At the beginning of the rowing movement, use the strength of your back and arms to pull the rowing machine handle, bending your elbows to about 90 degrees. Then, slowly pull the handle towards your chest, taking care to keep your elbows close to your body and avoid overextending your arms. Pause slightly as you pull to the very top, then slowly relax your arm and back muscles to bring the handle back to the starting position.
Throughout the rowing movement, keep your breathing smooth and don't hold your breath or overexert yourself. At the same time, pay attention to maintaining rhythm and stability, and avoid moving too fast or stopping suddenly.
In addition to the correct posture, the adjustment of the rowing machine is also important. Adjust the distance and height of the rowing machine according to the individual's height and arm length to ensure the accuracy and comfort of the movements. In addition, the right weight is also the key to the effectiveness of the workout. Choose the right weight based on your personal strength and fitness goals, gradually increasing the difficulty and challenge.
In conclusion, the correct posture of fitness rowing requires mastery of technique and detail. With constant practice and adjustment, you can take advantage of the rowing machine to effectively work your back, arms, and core muscles to achieve the perfect figure.