Reliability & Validity of Isokinetic Functional Capacity Evaluation (FCE):

Objectivity. Objectivity refers to the indication that the test measurements are relatively unbiased by either the participant or the evaluator. Objectivity in testing can be increased when the testing procedures and practices for observation and scoring are clearly defined and documented.

In isokinetic testing this is assured as the tester is independent of the either the referrer or the participant. The provider of the isokinetic evaluation gets the same remuneration regardless of the result. Employees are referred simply to the nearest centre geographically.

Reliability. Reliability refers to consistency in measurement and scoring. The test measures and scores must be consistent across evaluators, participants, and the date or time of test administration. Inter-rater and Intra-rater reliability have been noted to be the two most important forms of reliability in FCE test administration and evaluation.

Vocational Assessment/Rehabilitation

Isokinetics machines are routinely used in injury management world wide. They are accepted as reliable, reproducible and valid for the assessment and rehabilitation of injuries by the clinical and research communities. Each year literally thousands of peer reviewed pieces of research are produced on the uses of isokinetics machines in medicine.

In the last decade isokinetics machines have been increasingly used in vocational assessment and rehabilitation (the assessment and rehabilitation of injuries in the work place setting) mainly in the USA.

Isokinetics machines can actually perform many different types of tests. Strength, endurance and range can all be tested either statically (isometrically) or dynamically (isotonically or isokinetically). In the dynamic tests both concentric and eccentric contractions can be assessed (allowing both raising and lowering to be assessed). Proprioception (ability to judge position in space and how fast any motion is) can also be fully assessed. Added together isokinetics machines are in fact the only assessment tool to allow all aspects of musculoskeletal and neuromuscular performance to be full analysed.

Physical assessments or pre employment checks are accepted as a prerequisite to employment in many industries, particularly for safety-sensitive job positions. Such assessments routinely include vision and hearing tests for employees (for example heavy goods vehicle drivers), drug and alcohol testing (for example in the airline industry for pilots), and hearing and spirometry tests required to meet health and safety standards (for example in heavy manufacturing environments).

Employers may also be interested in a prospective employees' ability to perform physical portions of essential job functions. This may be assessed through physical ability testing. Moreover, employers may have concerns about their employees' health and overall physical fitness as those factors affect productivity, health care costs (sickness absence and related management costs), and compensation claims.

A Isokinetic Functional Capacity Evaluation (a derivative of functional capacity evaluation) is an objective comprehensive physical test of isolated joint and/or combined functional performance. They are used commonly to determine ability for work, activities of daily living, or leisure activities.