Table 2. The 6RM prediction equations, regression values and the statistical power for each exercise (n = 29).

Equation	R2	SEE (kg)	Statistical power
Hammer curl = Bench press (0.28) + 6.30kg *	.64	2.63	.99
Barbell biceps curl = Bench press (0.33) + 6.20kg *	.81	1.95	.99
Overhead triceps extension = Bench press (0.33) - 0.60kg *	.86	1.69	1.00
Dumbbell shoulder press = Bench press (0.42) + 5.84kg *	.76	2.87	.99

* p < 0.01. SEE = Standard error of the estimate.