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# Biceps Curl Test

Testing and measurement are the means of collecting information upon which subsequent performance evaluations and decisions are made but, in the analysis, we need to bear in mind the factors that may influence the results.

### Objective

The objective of this test is to assess the strength of the athlete's biceps

### Required Resources

To undertake this test, you will require:

• A set of dumbbells
• Bench
• Assistant

### How to conduct the test

This test requires the athlete to complete as many biceps curls as possible with no rest.

 The athlete warms up for 10 minutes The assistant selects a dumbbell weight close to the athlete's one repetition maximum load The assistant adjusts the inclined backrest to 30 degrees to the vertical The athlete stands behind the inclined backrest with the arm, palm up, and forearm resting on the inclined surface The assistant hands the athlete the dumbbell which also rests against the inclined surface The athlete flexes the elbow to a vertical forearm position, lowers the dumbbell down onto the backrest and continues with biceps curls until unable to continue. The upper arm must remain in contact with the bench's backrest at all times The assistant counts the number of successful curls If the number of curls exceeds 10 then the athlete rests for 10 minutes, the assistant increases the resistance and the athlete repeats the test The assistant uses the maximum load calculator to determine the athlete's 1RM The test is repeated for the other arm

### Assessment

I have been unable to locate any normative data for this test.

Dohoney et al. (2002)[1] following their research, identified the following equations to determine 1-RM for the bicep curl test:

• 4-6RM : 19.97 + (0.81 x weight) + (2.31 x number of reps)
• 7-10RM : 23.9 + (0.77 x weight) + (2.16 x number of reps)

For an evaluation of the athlete's 1RM enter the number of successful curls (Reps), the Weight and then select the 'Calculate' button. The number of successful curls must lie in the range of 4 to 10 otherwise 1RM will remain blank.

 Reps Weight kg 1RM kg

### Analysis

Analysis of the test result is by comparing it with the athlete's previous results for this test. It is expected that, with appropriate training between each test, the analysis would indicate an improvement in the strength of the athlete's biceps. The 1RM for the left and right biceps should not differ by more than 10%.

### Target Group

This test is suitable for active athletes but not for individuals where the test would be contraindicated.

### Reliability

Test reliability refers to the degree to which a test is consistent and stable in measuring what it is intended to measure. Reliability will depend upon how strict the test is conducted and the individual's level of motivation to perform the test. The following link provides a variety of factors that may influence the results and therefore the test reliability.

### Validity

Test validity refers to the degree to which the test actually measures what it claims to measure and the extent to which inferences, conclusions, and decisions made on the basis of test scores are appropriate and meaningful. This test provides a means to monitor the effect of training on the athlete's physical development.

• Minimal equipment required
• Simple to set up and conduct
• The test can be administered by the athlete

• Specialist equipment required

### References

1. DOHONEY, P. et al. (2002) Prediction of one repetition maximum (1-RM) strength from a 4-6 RM and a 7-10 RM submaximal strength test in healthy young adult males. Journal of Exercise Physiology, 5 (3), p. 54-59

### Related References

The following references provide additional information on this topic:

• REILLY, T. and PIERCY, M. (1994) The effect of partial sleep deprivation on weight-lifting performance. Ergonomics37 (1), p. 107-115