Biomechanics and Medicine in Swimming XI

Table 1. Physiological and performance variables in 200m and 4x50m of
free style swimming with 5, 10 and 20s rest intervals for all participants
(n=13).
Performance (s)
H.R (beat·min -1 )
Lactate (Mmol·l -1 )
Strokes number (rep.)
Mean speed (m·s -1 )
VO 2 peak (ml . kg -1 ·min -1 )
l·min -1
% VO 2 peak at VO 2 max
RPE
200m 4x50 m p
5 s 10 s 20 s
149.33±9.27
184.23±5.26
7.58±2.51
189.07±20.03
1.33±0.08
45.45±15.14
2.81±0.85
99.1±28.86
17.69±0.85
144.38±8.52
190.61±9.47
7.30±2.15
194.92±22.95
1.38±0.08
39.76±14.05
2.45±0.74
86.6±42.40
17.61±0.76
141.60±8.47
189.53±8.42
7.38±1.82
192.92±21.30
1.41±0.09
44.72±12.43
2.79±0.82
98.6±45.56
17.38±0.96
137.12±7.78*
195.38±11.87*
7.53±1.61
190.53±21.14
1.45±0.09 *
44.47±13.03
2.77±0.89
97.9±32.29
17.76±0.72
0.004
0.015
n.s.
n.s.
0.004
n.s.
n.s.
n.s.
n.s.
Values are means ± SD. VO 2 : oxygen uptake, HR: heart rate, RPE: rate
of perceived exertion, VO 2 peak: peak oxygen consumption at 50m. (*)
significant difference between 200m and 4x50m with 20 s resting interval,
p