English to Russian Other Sports / Fitness / Recreation Mountain climbing

Lead climbing is a climbing technique used to ascend a route. This technique is predominantly used in rock climbing and involves a lead climber attaching themselves to a length of dynamic (elastic) climbing rope and ascending a route whilst periodically attaching protection to the face of the route and "clipping in" to it. The lead climber must have another person acting as a belayer. The belayer has multiple roles: holding the rope in the event of a fall, and paying out or taking up rope as the climber moves.

Вид скалолазания, в котором один альпинист идет впереди, а его напарник подстраховывает. Хотелось бы узнать русский термин.

Заранее спасибо за идеи!