B1 - Leg extension
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Select your weight. Adjust backrest. Sit in machine with lower legs positioned behind lever arm. Fasten belt and place hands on handholds. Flex feet towards knees and position legs hip-width apart.
Moving from knees, slowly extend both legs until they are completely straight. Hold this position briefly. Slowly return legs to starting position. Ensure that weights do not touch down. Repeat until a full movement is no longer possible.
Important: Keep back straight and neck and facial muscles relaxed during entire exercise.