sentence: Some trainers allege that squats are associated with injuries to the lumbar spine and knees.
sentences_before: Although the squat is a basic element of weight training, it has been the subject of considerable controversy in recent years.
sentences_after: As a result, many trainers suggest that the standard barbell squat be modified in various ways. Others, however, reject all suggestions that the exercise be abandoned, continuing to advocate the squat.
concept_name: trainer
headings: Squat Health concerns
categories: Fitness