Principles of Good Posture for Safer Manual Handling

BASE (feet)

Remember the greater the area of base of an object, the less likely it is to be displaced. When handling your feet should be positioned accordingly – one foot should be moved slightly ahead and astride of the other so that the feet are in an off set or “ballet” position.

The size of the base or the width apart of the feet must be appropriate to the activity or task being undertaken and the size and shape of the load. The base of support must be dynamic.

KNEES

Remember the lower the centre of gravity of an object the less likely it is to be displaced. The centre of gravity can be lowered in the upright human being by unlocking or softening the knees. Softening the knees also enables the use of the large leg (quadriceps) and buttock (gluteal) muscles, thereby taking the strain away from the small spinal muscles.

Always keep your centre of gravity over and within your base of support.

BOTTOM

The bottom should be tucked in and gently lowered as the handling is initiated.

BACK

The spine should be allowed to move in a normal efficient manner, not splinted by the muscles in the “straight back” concept. Use the natural curves of the spine. The Human Spine is capable of a relatively wide range of movement. It is the central axis for the many and varied movements of which we are capable.

SHOULDERS

Elevate the shoulders, allow the shoulders to very gently raise and then relax immediately before reaching so that the muscles are gently stretched. The elbow should be allowed to bend as the shoulder girdle elevates so that the leverage is reduced.

HOLD

In all handling situations, the more a palmar hold is taken the less upper limb and thoracic tension is produced. Loads needs to be held rather than gripped. All loads should be held as closed to the body as possible thereby improving efficiency. Consider the centre of gravity of the load i.e. the heaviest part of the object/person closest to you.

HEAD

Wherever the head goes the rest of the body follows. In the normal development sequence head control precedes the ability to sit, stand and walk – wherever the head goes the rest of the body will follow in sequence. At the effort phase of any action if the head leads the way the body mass will move into its safest extended position. The safest position for the human being is the upright position raising the head the spinal curves will move into their natural position.

Note the elements detailed above in this sequence.

Now click here to go to the Principles of Posture Exercise.

Team Handling

Team handling occurs when more than one person is involved during the manual handling task. Remember that the combined strength of the team is less than the sum of individual strength.

· Ideally select team members of similar height and strength.

· The leader of the manoeuvre should always be established before the task is started e.g. the command is mine!

· Determine a set of commands to be used such as “lift”, “walk”, “stop”, “down”. Make sure that everyone knows what to do when they hear the command and use unambiguous commands e.g. ready, steady move. Try to avoid counting as this can create confusion e.g. one, two and three / one, two, three…

· Follow the commands given by the team leader.

· Practice handling together before attempting the task.