Q.Bow legs are also known as:
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Postural Deformity Types – A First Look
Think about how you sit right now. Are your shoulders rolled forward? Is your lower back collapsed into the chair? Most of us, after a few hours of study or screen time, settle into a shape that is not quite straight. That is the seed of the idea: a postural deformity is a persistent deviation of the body from its normal, balanced alignment.
The key word is persistent. Everyone slouches sometimes, but when the body stays in that misaligned position even when you try to stand straight — when the muscles and bones have adapted to the wrong shape — that is a deformity. It is not a disease or an injury; it is a habit of the body that has become structural.
Why does it matter?
A well-aligned body distributes weight evenly through the skeleton, so muscles work efficiently and joints are not strained. A deformed posture forces some muscles to overwork and others to weaken, leading to pain, fatigue, and eventually to reduced mobility or even damage to the spine and joints. For a commerce or humanities student, the practical concern is this: long hours of desk work, carrying heavy bags, and poor sitting habits are the perfect recipe for developing these deformities. Knowing about them is the first step to preventing them.
The main types of postural deformity
There are several common patterns. Each has a distinct shape and a distinct cause.
These deformities are not the same as temporary slouching. They are chronic conditions that require conscious correction, exercise, or in severe cases, medical intervention. Early awareness can prevent them from becoming permanent.
Kyphosis (round back or hunchback)
This is an exaggerated forward curve of the upper spine. Imagine the letter C, with the opening facing forward. The shoulders roll inward, the chest caves in, and the head juts forward to compensate.
- Common cause: Sitting hunched over a desk or phone for years, weak upper back muscles, and tight chest muscles.
- What you might notice: A visible hump at the top of the back, difficulty standing up straight, and sometimes neck or shoulder pain.
Lordosis (swayback or hollow back)
This is an exaggerated inward curve of the lower spine. The abdomen protrudes forward, and the buttocks stick out. The pelvis tilts forward.
- Common cause: Weak abdominal muscles, tight hip flexors (from sitting too much), and sometimes pregnancy or obesity.
- What you might notice: A pronounced arch in the lower back, lower back pain, and a forward-tilted pelvis when standing.
Scoliosis (lateral curvature)
This is a sideways curve of the spine, often forming an S or C shape when viewed from behind. One shoulder may be higher than the other, or one hip may stick out.
- Common cause: Often unknown (idiopathic), but can be congenital or caused by muscle imbalances. It frequently appears during the growth spurt in adolescence.
- What you might notice: Uneven shoulders, a prominent shoulder blade on one side, an uneven waist, or one hip higher than the other.
Flat foot (pes planus)
The arch of the foot collapses, so the entire sole touches the ground. This can affect the alignment of the ankles, knees, and hips.
- Common cause: Weak foot muscles, improper footwear, or prolonged standing on hard surfaces.
- What you might notice: Pain in the arch or heel, ankles that roll inward, and fatigue in the feet and legs after standing.
Knock knees (genu valgum)
The knees touch each other when standing with the feet apart. The ankles remain separated.
- Common cause: Weak hip and thigh muscles, obesity, or rickets (vitamin D deficiency). It is normal in young children but should correct by age 6–7.
- What you might notice: Difficulty walking with a normal gait, knee pain, and an awkward appearance when standing. …
Bow legs describe a condition where the knees stay wide apart when the ankles are together, giving the legs a bowed appearance. The medical term for this is Genu Varum — "varum" means bent inward toward the midline at the joint, which in this case refers to the tibia curving outward below the knee. …
Bow legs are medically called Genu Varum, which is the opposite of knock knees (Genu Valgum).
Bow legs (also called bandy legs) describe a condition where the knees remain wide apart even when the ankles are together. The legs curve outward at the knee, creating a bow-like gap. The Latin term for this is Genu Varum — genu means knee, and varum means bent outward.
Now let’s look at each option:
- (a) Genu Valgum — This is the exact opposite: knock knees, where the knees touch but the ankles are apart. The term valgum means bent inward. So this is wrong.
- (b) Genu Varum — This is the correct term for bow legs, as explained above.
- (c) Pes Planus — This refers to flat foot, where the arch of the foot collapses. It has nothing to do with the knee alignment. Wrong. …
- CBSE 2026Set 75/SRP1Q/41 markMCQQ.Corrective exercises should be done under a _____ advice and supervision. (A) Physician's or Physical Education teacher's (B) Physical Education teachers' or Physiotherapists' (C) Physical Education Teacher's or Coaches (D) Physician's or Physiotherapist's
›Reveal solutionSolution
Corrective exercises are specialized interventions for musculoskeletal issues, requiring professional guidance from those with diagnostic and rehabilitative expertise; thus, a Physician or Physiotherapist is best suited. The correct option is (D).
Concept and Intuition
Corrective exercises are not just general physical activity; they are specific, targeted movements designed to address and fix underlying musculoskeletal imbalances, postural deviations, movement dysfunctions, or chronic pain. Think of them as a form of physical therapy or rehabilitation. For instance, if someone has chronic lower back pain due to weak core muscles and tight hip flexors, a corrective exercise program would specifically target strengthening the core and stretching the hip flexors.
The intuition here is that if you're trying to correct a problem in the body, you need someone who understands the body's mechanics, potential pathologies, and how to safely and effectively implement interventions. This requires a diagnostic ability to identify the root cause of the issue and then the expertise to prescribe the right exercises, monitor progress, and adjust the program as needed. Incorrectly performed corrective exercises can worsen a condition or lead to new injuries.
Step-by-Step Analysis
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Understanding "Corrective Exercises": These exercises are prescribed to improve movement patterns, reduce pain, prevent injury, and enhance physical performance by addressing specific muscle imbalances, postural issues, or functional limitations. They often follow a diagnosis of a physical ailment or dysfunction.
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Identifying Required Expertise: To effectively supervise corrective exercises, an individual needs:
- Diagnostic Capability: The ability to assess and identify the specific musculoskeletal issues or dysfunctions.
- Anatomical and Physiological Knowledge: A deep understanding of how the body works, including muscles, bones, joints, and nervous system.
- Biomechanics Expertise: Knowledge of how forces affect the body during movement.
- Rehabilitation Principles: Understanding how to safely and progressively restore function and correct imbalances.
- Risk Management: Awareness of potential contraindications and how to prevent further injury.
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Evaluating Option (A) Physician's or Physical Education teacher's:
- A Physician (especially one specializing in sports medicine, orthopedics, or physical medicine and rehabilitation) possesses the diagnostic capability and medical knowledge required.
- A Physical Education teacher is trained in general fitness, sports, and promoting healthy lifestyles. While they have knowledge of exercise, their training typically does not extend to diagnosing specific musculoskeletal dysfunctions or prescribing rehabilitative corrective exercises for medical conditions.
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Evaluating Option (B) Physical Education teachers' or Physiotherapists':
- As discussed, Physical Education teachers generally lack the specialized diagnostic and rehabilitative training for corrective exercises.
- A Physiotherapist (also known as a Physical Therapist) is a highly trained healthcare professional specializing in the assessment, diagnosis, and treatment of musculoskeletal and neurological conditions through physical means, including therapeutic exercise. They are experts in corrective exercises and rehabilitation.
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Evaluating Option (C) Physical Education Teacher's or Coaches: …
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- CBSE 2026Set 75/SRP1Q/41 markMCQQ.Which of the following asanas are practised to correct "Kyphosis" ? (A) Chakrasan, Trikonasana, Adhomukhasana (B) Dhanurasana, Bhujangasana, Halasana (C) Bhujangasana, Trikonasan, Chakrasana (D) Dhanurasana, Chakrasana, Bhujangasana
›Reveal solutionSolution
Kyphosis, an exaggerated outward curve of the upper back, is corrected by asanas that open the chest and strengthen the back — specifically, Bhujangasana, Dhanurasana, and Chakrasana.
Kyphosis is a postural deformity where the thoracic spine curves excessively forward, creating a hunched or rounded upper back. It is often caused by poor posture, weak back muscles, or conditions like osteoporosis. The key to correcting kyphosis through yoga is to perform asanas that extend the spine backward, open the chest, and strengthen the muscles along the spine — essentially, counteracting the forward curve.
Among the options given, the correct set of asanas for kyphosis are those that involve backward bending or chest-opening movements. Let’s examine each asana mentioned:
- Bhujangasana (Cobra Pose): Lying on the stomach, you lift the chest off the floor using back muscles. This directly extends the thoracic spine and opens the chest — a primary counter to kyphosis.
- Dhanurasana (Bow Pose): Lying on the stomach, you hold the ankles and lift the chest and legs. This creates a deep backward bend, stretching the front of the body and strengthening the entire back.
- Chakrasana (Wheel Pose): Lying on the back, you push up into a full backbend. This powerfully opens the chest and extends the spine, though it is more advanced.
Now, look at the options:
- (A) Chakrasana, Trikonasana, Adhomukhasana — Trikonasana (triangle pose) is a lateral bend, not a backbend; Adhomukhasana (downward dog) is a forward bend. Neither directly corrects kyphosis.
- (B) Dhanurasana, Bhujangasana, Halasana — Halasana (plough pose) is a forward bend that rounds the back, which would worsen kyphosis, not correct it. …
- CBSE 2019Set 75/BVM/41 markQ.Which type of deformity is ``Kyphosis'' ?(OR)What is Motor Development ?
›Reveal solutionSolution
Part (a): kyphosis is a postural, spinal-curvature deformity — an excessive outward curve of the upper (thoracic) spine (round/hunched back). Part (b): motor development is the progressive, sequential acquisition of movement skills from infancy onward.
Part (a)
Kyphosis is a postural deformity belonging to the group of spinal-curvature deformities. In it, the natural forward curve of the thoracic (upper-back) region of the spine becomes exaggerated, so the spine curves excessively outward/backward and the person shows a rounded, hunched back with the shoulders drawn forward. It commonly results from poor posture, slouching, weak back muscles, carrying heavy loads on the back, or repeatedly sitting/standing incorrectly. In severe cases it can cause back pain and compress the chest. It is a sagittal-plane curvature, unlike scoliosis, which is a side-to-side (lateral) curve, and lordosis, which is an inward curve of the lower back. It can be corrected/managed by posture-strengthening exercises such as dhanurasana and bhujangasana and by using a chair with proper back support. …
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