Would it shock you to know that in a US study they found up to 56% of teenage spines were deformed?
The culprit was identified as poor posture and extended sitting during growth spurts. Whilst improving school furniture including desk/chair setups at home have been shown to make big differences to posture; self-esteem and peer pressure are factors in poor posture too.
Rather than try and change bad habits it much better to try and preserve natural body usage from a young age.
Here are our tips for maintaining healthy muscles and bones:
1. Give young babies a chance to develop neck control and lower back strength by a steady progression, at their own speed, through lifting their head; rolling over; sitting; being on all fours; crawling to walking. Each stage prepares the muscle co-ordination for the next. If you rush them past a stage, some muscle groups will not be ready. For example, make sure they spend time on their back and tummy. The latter should be supervised but works well with you lying on your tummy. Lifting their head is a natural response to curiosity. If you always prop them semi-upright their curiosity is satisfied.
2. Delay using baby bouncers and walkers especially those which force apart a child's thighs. The hip joint isn't properly formed for some time. In fact it is the movement of the thigh which literally makes a hole in the pelvis to become a ball and socket joint. And if you do use them no longer than 5-10 minutes at one time.
3. For the same reason, use baby slings which support both the baby's buttocks and thighs.
4. Try to use chairs (high chairs, carriers, car seats) which have a distinct angle between the base of the spine and the thighs. These make it easier to change position when compared to rounded or gently curved designs. The latter tend to trap the spine in one position, an undesirable position at that.
5. Don't let children 'grow into chairs'. Using a chair that is too big can be worse than one that is too small. Make sure the thigh length of the seat is less than theirs. If the seat is too long their calves will press against the seat front. This restricts circulation and levers the small of the back away from the back of the chair. It also prevents them from moving their legs. Eating and concentrating will deteriorate rapidly due to this type of discomfort.
6. Whenever possible make sure that they have a good footrest while sitting down. The erecting muscles of the spine are reflex triggered by sensors in the feet. Without foot contact the spine has to rely more on conscious control and what child can be bothered to think about sitting properly?