Table 4. Changes in lumbar rotation during the 6 time points. NB lumbar flexion is denoted by positive angles, extension by negative. Data are means (±SD, n=6).
Time interval A (2-7 min) B (14-19 min) C (24-29 min) D (32-37 min) E (44-49 min) F (54-59 min)
Flexion at the catch (°) 33.6 (7.0) 33.9 (6.8) 34.5 (6.7) 34.5 (6.8) 35.8 (7.0) 34.9 (7.2)
Extension at the finish (°) -13.5 (8.0) -18.1 (5.9) -18.8 (6.5) -18.3 (5.8) -18.7 (5.8) -20.2 (4.7)
Maximum flexion in stroke (°) 35.3 (7.1) 35.8 (7.0) 36.3 (7.0) 36.3 (7.0) 37.6 (7.1) 36.8 (7.5)
% stroke where maximum flexion occurs 92.7 (10.2) 93.2 (10.0) 93.3 (10.1) 93.3 (10.1) 92.4 (11.0) 93.0 (10.4)
Maximum extension in stroke (°) -31.4 (6.3) -36.0 (5.2) -37.8 (6.2) -37.8 (5.0) -36.5 (5.3) -36.4 (5.4)
% stroke where maximum extension occurs 31.8 (1.7) 32.2 (1.5) 32.7 (1.6) 32.8 (1.9) 32.2 (3.1) 32.7 (2.9)