What are the best progressions for a single-leg Romanian deadlift?

If someone finds the SLRDL too challenging due to balance issues, I would suggest regressing it to a regular RDL. However, the modifications would also depend on the training program's goal. If the aim is to improve mobility, I would recommend incorporating some form of this movement. An easy modification is to use a support, like a PVC pipe, purely for balance, not to bear the weight. If the exercise seems too intense for the client, they could also try it without weights. In case of pain, I would recommend consulting a professional. If it's a balance issue, continue using an aid or decrease the weight, gradually improving the movement over time. If the goal is muscle growth, I recommend sticking with a regular RDL.

I see two approaches here (not that there aren't a dozen more). 1. Use a dowell for a bar, and simply use body weight to work on form and learn the movement. 2. If you feel you've mastered the RDL and want to move on to single leg, begin with a simple split stance. It's a bit easier to balance as both feet are still touching the floor, but your essentially working one leg at a time through eccentric/concentric movements of the exercise. These same progressions can be done with dumbbells and kettle bells, but ultimately my recommendation would be either body weight or split stance, maybe split stance then body weight in that order.

A mi me ha resultado útil actualmente, ya que ha hecho posible que aumentar la intensidad en cortos espacios de ejercicios

If you're new to SLRDL, it's important to first make sure a client can do a hinge, which is the main part of the exercise. Many people don't know how to move their bodies right for this. I usually tell my clients to do this: Stand about 2 feet from a wall and sit back with your hips. Try to touch the wall with your bum without moving your legs too much. The goal is to focus on getting your bum to touch the wall, then go back to the start. Do this over and over until you get the hinge movement. The best way to know if you're doing it right is if you feel it in your hamstrings.

Es una práctica muy buena ya que ayuda al aumento del ejercicio funcional diario, lo que ayuda a una mejor práctica y una mayor efectividad

Son ejercicios, que bien realizados, pueden contribuir de una manera excelente a la mejora física diaria, ya que ayudan al crecimiento de la frecuencia cardiaca

Science provides little support for the notion that using unstable surfaces improves specific movements. Most studies suggesting this have been debunked. The bosu ball, once a popular gym tool, now serves little purpose. The goal should be to build strength in any plane of motion. Using an unstable surface prevents you from producing maximum force, thereby reducing the effectiveness of the exercise. The best way to perform a Single Leg Romanian Deadlift (SLRDL) is on a flat surface. If you've mastered that, increase the difficulty while maintaining stability by adding a deficit or performing it against a wall with one foot for a deeper stretch.

Start with bodyweight single-leg Romanian deadlifts to work on balance. Gradually add dumbbells or kettlebells for resistance as you build strength. Focus on maintaining a neutral spine and controlled movement. Incorporate variations like staggered stance or elevated rear foot to target different muscles. Progress slowly, emphasizing proper form over heavier weights to prevent injury.

As the SLRDL is pretty advanced i would not recommend starting with it. Better is the RDL (were you use both feet). A great upside to the regular RDL is technique will be far easier and thus easier for beginners to progress. In the SLRDL most people will struggle with the balance and are therefore not able to properly train their hamstrings (and glutes).