goal = [
        STRENGTH = 'str'
        PHYSIQUE = 'phq'
    ]

    experience_level = [
        NEW = 'new'
        EXPERIENCED = 'exp'
    ]

    weight_goal = [
        GAIN_WEIGHT = 'g'
        LOSE_WEIGHT = 'l'
        MAINTAIN_WEIGHT = 'm'
    ]

    gender = [
        MALE = 'm'
        FEMALE = 'f'
        OTHER = 'o'
    ]

    days = [
        MONDAY = 'mon'
        TUESDAY = 'tue'
        WEDNESDAY = 'wed'
        THURSDAY = 'thu'
        FRIDAY = 'fri'
        SATURDAY = 'sat'
        SUNDAY = 'sun'
    ]