Function in Sitting Test Score Calculator

The Function in Sitting Test (FIST) score calculator works out a total score from 14 sitting-balance tasks, each rated 0–4, giving a maximum of 56 points. You enter the 14 individual item scores, and the calculator sums them and can also show the percentage. This gives a quick, objective measure of a person’s sitting balance for clinical or rehabilitation use.

Formula

The FIST total score is the sum of the 14 individual item scores:

FIST total = item1 + item2 + item3 + item4 + item5 + item6 + item7 + item8 + item9 + item10 + item11 + item12 + item13 + item14

Each item is scored from 0 (unable) to 4 (independent with no assist). The maximum total is 56. The percentage is simply (total / 56) × 100.

Worked Example

Using the default values in the calculator above:

• Item 1: 4
• Item 2: 4
• Item 3: 3
• Item 4: 3
• Item 5: 3
• Item 6: 2
• Item 7: 2
• Item 8: 2
• Item 9: 3
• Item 10: 3
• Item 11: 2
• Item 12: 2
• Item 13: 2
• Item 14: 1

Sum = 4+4+3+3+3+2+2+2+3+3+2+2+2+1 = 36. The percentage is 36/56 × 100 = 64.3%.

So the calculator shows a total of 36 out of 56, which is 64.3%.

What the FIST Measures

The Function in Sitting Test was developed to assess sitting balance in people with neurological conditions, particularly after stroke. Unlike static balance tests that only measure how long someone can stay upright, the FIST includes dynamic tasks like reaching, turning, and reacting to a perturbation. It is used by physical therapists and occupational therapists in rehab settings to track progress and guide treatment.

The 14 items cover a range of difficulty, from basic support (sitting with arm support) to challenging tasks (sitting on an uneven surface). The score helps clinicians identify specific areas of weakness—for example, if a patient scores low on reaching tasks but high on static sitting, therapy might focus on dynamic balance.

How to Administer the Test

To get a valid score, the test should be performed in a standardized way:

1. Seat the person on a firm surface with feet supported and hips at about 90 degrees. The starting position is the same for all items unless the item specifies otherwise.
2. Explain and demonstrate each item. The person can use their arms for support only if the item allows it.
3. Score each item from 0 to 4 based on the person’s independence and quality of movement. A score of 4 means the person completes the task independently without using their arms for support or balance. A score of 0 means they are unable to attempt the task or need total assistance.
4. Record the score immediately after each item. Do not average or round individual items.

The entire test takes about 10–15 minutes. It can be repeated at intervals to measure change over time.

Interpreting the Score

A higher total indicates better sitting balance. The maximum is 56. There is no universal cutoff for “normal” because scores vary with age and condition, but in general:

• 50–56: Good sitting balance, independent in most sitting tasks.
• 35–49: Moderate impairment, may need assistance with dynamic tasks.
• Below 35: Significant impairment, likely needs support for safety.

Always interpret the score in the context of the person’s diagnosis and baseline. A change of 4–5 points is often considered clinically meaningful, but this can vary.

Common Mistakes and Limitations

One common mistake is scoring items based on the person’s ability to stand or walk, not just sitting. The FIST is specifically about sitting balance. Another error is allowing the person to use their hands for support when the item does not permit it—this inflates the score.

The test has limitations: it is not a substitute for a full balance assessment, and it may not be sensitive enough to detect small changes in highly functioning individuals (ceiling effect). Also, the FIST has not been validated for all populations, so use clinical judgment when applying it to people with non-neurological conditions.

Why Use a Calculator?

Using a calculator reduces arithmetic errors, especially when you are scoring many patients. It also instantly gives the percentage, which can be useful for comparing to other assessments or for research. The calculator here uses the standard 14-item scoring, so you can trust the math if you enter the correct item scores.

If you are a clinician, you might also want to track the individual item scores separately to see patterns. The calculator only gives the total and percentage, so keep your item-level notes for detailed analysis.

Frequently Asked Questions

What is the maximum score on the FIST?

The maximum is 56 points, which is the sum of 14 items each scored 0–4. A score of 56 means the person is independent on all sitting tasks.

Can I use the FIST for a person with spinal cord injury?

Yes, the FIST has been used in various neurological populations, but it was originally developed for stroke. Always check if the test is appropriate for your patient’s specific condition and level of function.

How long does the FIST take to administer?

Typically 10–15 minutes, depending on the person’s fatigue and ability. It can be shorter if the person is high-functioning, or longer if they need rest breaks.

Is a higher score always better?

Generally yes, but a very high score might not capture subtle balance deficits. The FIST is a functional test, not a laboratory measure of postural sway. Use it alongside other assessments for a full picture.

What if a patient cannot attempt an item?

Score that item as 0. Do not skip it or assign an average. The total will then reflect the inability, which is clinically useful.

Can I use this calculator for research purposes?

Yes, as long as you follow the standard FIST protocol for administration and scoring. The calculator simply sums the scores, so it is accurate for research data entry.

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in item1 | Item 1 (sits with support) | 0-4 | 4 | 0
in item2 | Item 2 (sits with feet supported) | 0-4 | 4 | 0
in item3 | Item 3 (sits with eyes closed) | 0-4 | 3 | 0
in item4 | Item 4 (sits with head turned) | 0-4 | 3 | 0
in item5 | Item 5 (sits reaching forward) | 0-4 | 3 | 0
in item6 | Item 6 (sits reaching down) | 0-4 | 2 | 0
in item7 | Item 7 (sits reaching to floor) | 0-4 | 2 | 0
in item8 | Item 8 (sits picking up object) | 0-4 | 2 | 0
in item9 | Item 9 (sits with arm lift) | 0-4 | 3 | 0
in item10 | Item 10 (sits with trunk rotation) | 0-4 | 3 | 0
in item11 | Item 11 (sits with perturbation) | 0-4 | 2 | 0
in item12 | Item 12 (sits with feet lifted) | 0-4 | 2 | 0
in item13 | Item 13 (sits on foam) | 0-4 | 2 | 0
in item14 | Item 14 (sits on uneven surface) | 0-4 | 1 | 0
out total | Total FIST score | /56 | item1+item2+item3+item4+item5+item6+item7+item8+item9+item10+item11+item12+item13+item14 | 0
out percent | Percentage | % | total/56*100 | 1