CTRI

Method:

Subjects with osteoarthritis of knee joint will be enrolled in this study. Written informed consent will be obtained from all participants after explanation of the details of this study and its benefits and risk in their own language. The study protocol will be approved by the ethical committee of College of Physiotherapy. Subjects will be selected based on inclusion and exclusion criteria by purposive sampling technique. The Body Mass Index will be derived from data collection sheet and quadriceps muscle strength will be assessed by Modified sphygmomanometer instrument. The 30-second Chair Stand Test will be used to assess the Physical Function in older adults with osteoarthritis knee. The older peopleâ€™s quality of life questionnaire is a tool to assess the quality of life in the following domains: life overall, health, social relationships, independence, home and neighbourhood, psychological and emotional well-being, financial circumstances, leisure and activities.

BODY MASS INDEX:

Calculated by = Weight (kg)/ Height (cm²)

QUADRICEPS MUSCLE STRENGTH:

It is measured by Modified Sphygmomanometer instrument.

Procedure:

In the high sitting position, hip and knee flexed to 90Â°, resistance will be applied just proximal to the ankle on the anterior surface of leg. For the quadriceps muscle, manual stabilization will be provided at distal and anterior on the thigh. Before the assessments, the subjects will be asked to perform a submaximal isometric contraction with modified sphygmomanometer, which will be pre-inflated to 20 mmHg, will be then placed in a position to resist the movements generated by the muscle group. During trial efforts, the subjects will be verbally encouraged to exert their maximal isometric contractions over 5 sec. The examiners will apply manual resistance against the movement, maintaining the body segment static. After familiarization, 3 trials of maximal isometric contractions will be performed by the patient, with the sphygmomanometer. The peak values will be recorded. Rest intervals of 15 s between trials will be allowed.

30-SECOND CHAIR STAND TEST:

Abbreviation: 30s-CST

Description

The maximum number of chair stand repetitions possible in a 30 second period.

Equipment

Timer/stop watch.

Straight back chair with a 44cm (17 inch) seat height, preferably without arms.

Preparation

Environment

Ensure the chair cannot slide backwards by placing the back of the chair against a wall.

Participant

Comfortable walking footwear should be worn.

The participant sits in the chair in a position that allows them to place their feet flat on the floor, shoulder width apart, with knees flexed slightly more than 90 degrees so that their heels are somewhat closer to the chair than the back of their knees.

The arms are crossed at the wrists and held close to the chest (across chest).

Tester

The tester stands close to the side of the chair for safety and so as they can observe the technique, ensure that the participant comes to a full stand and full sit position during the test.

Procedure

From the sitting position, the participant stands up completely up so hips and knees are fully extended, then completely back down, so that the bottom fully touches the seat. This is repeated for 30 seconds.

Same chair should be used for re-testing within site.

If the person cannot stand even once then allow the hands to be placed on their legs or use their regular mobility aid. This is

then scored as an adapted test score.

Verbal instructions

â€œFor this test, do the best you can by going as fast as you can but donâ€™t push yourself to a point of overexertion or beyond

what you think is safe for you.

Place your hands on the opposite shoulder so that your arms are crossed at the wrists and held close across your chest. Keep your arms in this position for the test.

Keep your feet flat on the floor and at shoulder width apart.

On the signal to begin, stand up to a full stand position and then sit back down again so as your bottom fully touches the seat.

Keep going for 30 seconds and until I say stop.

Get ready and STARTâ€.

Scoring

On the signal to begin, start the stop watch. Count the total number of chair stands (up and down equals one stand) completed in 30 seconds. If a full stand has been completed at 30 seconds (i.e. standing fully erect or on the way down to the sitting position), then this final stand is counted in the total.

The participant can stop and rest if they become tired. The time keeps going.

If a person cannot stand even once then the score for the test is zero.

Next, allow the hands to be placed on their legs or use their regular mobility aid. If the person can stand with adaptions, then record the number of stands as an adapted test score.