ABSTRACT

Measurements of an athlete's power in rowing are commonly used as the main tool for identification of the athlete's energy production and technique efficiency. The traditional method of rower's power (P) calculation consists of multiplying the momentum applied to the oar handle M by angular velocity of the oar rotation OJ or handle force F by linear velocity v of the point of force application (e.g. Fukunaga et al., 1986; Dal-Monte and Komor, 1989; Zatsiorsky and Yakunin, 1991):

P(t) = M(t) * ro(t) = F(t) * R * a(t) / dt = F(t) * v(t) (1)

where R is the length of inboard oar radius between the gate pin and the point of force application. There are other modifications of this method when force was measured at the gate and handle moment was derived using inboard/outboard ratio (e.g. Staniak et al., 1994).