Back pain when trotting lightly could be caused by a variety of factors such as muscle strain, poor posture, or an underlying medical condition. It's important to pay attention to any other symptoms you may be experiencing and to consult with a healthcare professional for an accurate diagnosis and appropriate treatment plan. In the meantime, you may find relief by practicing good posture, doing gentle stretching exercises, and applying ice or heat to the affected area. **

When trotting, you should sit deep in the saddle and keep your hands steady and slightly raised. Use your legs to maintain a steady rhythm and encourage your horse to move forward. To steer, use your inside rein to direct your horse's head in the direction you want to go, while using your outside rein to support and maintain the bend. Additionally, use your inside leg at the girth to ask your horse to bend around your inside leg and move in the desired direction. Keep your body upright and balanced to help your horse stay balanced and maintain a smooth trot. **

One can prevent accidentally trotting by being mindful of their body position and movements while walking or running. It is important to maintain a relaxed and fluid posture, with the shoulders back and the head held high. Additionally, paying attention to the placement of the feet and taking smaller, controlled steps can help prevent accidentally trotting. Practicing good posture and body awareness can also help in preventing accidental trotting. **

When trotting, the horse's heels lift off the ground in a diagonal pair pattern. As one front leg moves forward, the opposite hind leg moves forward as well, causing the heels to lift off the ground. This movement helps propel the horse forward in a smooth and rhythmic manner. The heels then make contact with the ground again as the horse completes each stride. **

To sit the trotting race, it is important to have a strong and balanced seat. Keep your weight evenly distributed in the saddle and sit deep to absorb the motion of the horse's trot. Relax your hips and allow them to move with the horse's movement, while keeping your upper body tall and stable. Practice maintaining a steady rhythm with the horse to stay in sync and minimize bouncing. **

People stand up when trotting in order to absorb the bouncing motion of the horse's trot. By standing in the stirrups, riders can use their legs as shock absorbers, which helps to minimize the impact on their body and maintain balance. This also allows the rider to move with the horse's motion and stay in sync with the trot, making for a smoother and more comfortable ride for both the rider and the horse. **

When trotting lightly, some difficulties that may arise include maintaining balance and coordination, especially for the rider. It can be challenging to keep a consistent rhythm and pace while also ensuring the horse is moving smoothly and correctly. Additionally, trotting lightly requires a certain level of fitness and strength from both the horse and rider, as it can be physically demanding to maintain the desired lightness and responsiveness. **

There could be several reasons why your Icelandic horse is not trotting. It could be due to physical discomfort or pain, such as a sore back or muscle stiffness. It could also be a training issue, where the horse has not been properly taught how to trot or is confused about the cues given. It's important to rule out any physical issues by having a veterinarian check your horse, and then work with a qualified trainer to address any training or behavioral issues that may be preventing your horse from trotting. **