Use a hand dynamometer, not a pinch gauge or a spring exercise gripper. Follow its instructions for checking calibration, choosing a comfortable handle setting, and resetting the display. Use the same device and setting at future visits. This page asks for pounds. If possible, select pounds on the device before testing.

Sit upright with your back supported and feet flat. Keep your shoulder relaxed and upper arm beside your body. Bend your elbow about ninety degrees. Hold your forearm in a handshake position and keep your wrist close to neutral. Do not rest the testing arm or device on the chair, your thigh, or a table.

Try one gentle practice squeeze if you need to learn the device. Then reset it. For a recorded trial, squeeze as hard as you safely can for about three seconds, then relax. Keep the same posture and breathe normally. Do not jerk the device, lean your body into it, or hold a prolonged endurance squeeze.

Record three trials for each hand you test, resetting the device between trials. This page uses fifteen to thirty seconds of rest between attempts. That is a tracking convention, not a universal research standard. Longer rest can reduce fatigue effects. If you need more recovery, take it, record the interval, and use the same method at future visits. Do not keep squeezing repeatedly to chase a better result.

Your dominant hand is your usual preferred hand, not whichever hand scores higher today. Enter its highest trial in Dominant hand grip strength, in pounds. You may enter the other hand's highest trial in the optional non-dominant field. This page uses the best trial. Do not substitute the average or add the two hands together. Some studies use an average, so keep that distinction clear.

Replace preset values with your actual readings. Note the device, handle setting, posture, rest interval, and all trials in Measurement context. If your device reports kilograms of force, convert to pounds by multiplying by about two point two zero five and note the conversion. Stop for pain or concerning symptoms. Ask your clinician first after hand injury or surgery, or if physical activity makes your symptoms worse later. These grip studies do not validate the combined score on this page.

Choose a firm chair with no wheels. Its seat should be about seventeen to eighteen inches high. Place it on a non-slip surface and make sure it cannot slide or tip. Clear the floor and wear secure footwear. Have a timer and, when needed, a helper ready. Use the same chair height and setup each visit.

Record baseline fatigue before performance testing. Start seated with your back against the chair and feet flat. For the standard test, fold your arms across your chest. If appropriate, try one untimed rise to check that you can stand safely without your hands, then recover before timing. If you cannot, or feel unsafe, do not force the unsupported test. Ask your clinician about a safe alternative.

Start seated again. The helper starts the timer on the word Go, not after you are already standing. Stand fully upright with hips and knees straight, then sit back down under control. Repeat at a pace that is as quick as safely possible. Keep your feet and arm position consistent. Do not bounce off the seat or use your hands during the standard unsupported test.

Count each complete rise: one, two, three, four, five. For the standing-finish protocol used on this page, stop the timer when you are fully upright on the fifth rise. This matches the National Institute on Aging chair-stand instructions reproduced in the linked research toolkit. Another five-times test ends after the fifth return to sitting. Those times are different. Do not mix the two finish rules.

Enter elapsed seconds in the five times sit to stand field, including any pauses while the clock was running. If you used your hands, the standard unsupported test was not completed. Only use a supported adaptation if it is safe and appropriate for you. Mito Map lets you record light or repeated hand support; choose what actually happened and describe it. Do not label a supported result as standard, and do not invent a time for an incomplete test.

Immediately after completion, record current fatigue from one, no fatigue, to seven, maximal fatigue in the post-test field. This is an adapted single rating, not the nine-item FSS. Stop testing for pain, dizziness, chest discomfort, concerning breathlessness, or loss of balance. The official chair-stand protocol also stops if five rises are not completed within one minute. Ask your clinician before testing if exertion triggers symptom crashes. Note chair height, finish rule, support, and unusual conditions. Record delayed worsening separately. These research protocols do not validate Mito Map's combined score.