Table 3. Rates of carbohydrate and fat oxidation from the respiratory analyses during submaximal cycle ergometry before (pre-test) and after (re-test) 3 weeks of intake of L-arginine-L-aspartate or placebo. Data represent means (SD).
PLACEBO (n=8)
L-ARGININE-L-ASPARTATE (n=8)
Rest
50 watts
100 watts
150 watts
Rest
50 watts
100 watts
150 watts
Caloric Equivalent (kcal·l-1 O2)
Pre-Test Re-Test
4.933 (.1014) 9.4936 (.096)
4.899 (.057) 4.916 (.055)
4.956 (.046) 4.980 (.037)
5.025 (.028) 5.036 (.020)
4.921 (.122) 4.907 (.105)
4.950 (.082) 4.855 (.094) *
4.942 (.067) 4.930 (.067)
5.024 (.026) 5.011 (.039)
TOTAL EnEx (kcal·h-1)
Pre-Test Re-Test
121.5 (22.6) 111.1 (26.6)
318.1 (36.6) 314.4 (41.7)
468.9 (36.0) 463.5 (36.6)
634.6 (54.3) 631.1 (43.9)
126.7 (29.1) 122.8 (18.3)
351.0 (53.5) 320.0 (36.7)
489.5 (29.8) 458.9 (34.6)
667.3 (46.0) 622.5 (40.0)
EnEx by CARBOH (kcal/h)
Pre-Test Re-Test
86.7 (41.0) 77.7 (30.6)
194.5 (62.0) 210.1 (73.5)
355.1 (52.2) 379.4 (53.9)
596.9 (42.1) 612.5 (41.5)
91.7 (40.9) 74.1 (31.5)
254.7 (70.6) 150.7 (11.0) *
351.3 (89.2) 317.2 (88.2)
622.8 (44.4) 561.4 (68.3)**
EnEx by FAT (kcal·h-1)
Pre-Test Re-Test
34.9 (27.8) 33.4 (26.9)
123.6 (38.9) 104.2 (36.4)
113.8 (60.4) 83.2 (45.9)
37.7 (48.4) 18.6 (35.0)
35.0 (23.3) 48.7 (38.6)
96.3 (87.6) 169.3 (87.8)
138.2 (89.6) 141.7 (80.8)
44.4 (52.1) 61.1 (68.7)
RELATIVE En Ex by CARBOH (%)
Pre-Test Re-Test
69.1 (27.1) 70.4 (25.9)
60.3 (15.1) 65.3 (15.0)
76.1 (12.2) 81.9 (9.8)
94.4 (7.2) 97.2 (5.3)
70.5 (22.8) 62.4 (28.6)
73.8 (22.0) 48.1 (25.7) *
71.9 (18.0) 69.0 (18.1)
93.6 (7.5) 90.3 (10.5)
RELATIVE EnEx by Fat (%)
Pre-Test Re-Test
30.9 (27.1) 29.6 (25.9)
39.7 (15.1) 34.7 (15.0)
23.9 (12.2) 18.1 (9.8)
5.6 (7.2) 2.8 (5.3)
29.5 (22.8) 37.6 (28.6)
26.2 (22.0) 51.9 (25.7) *
28.1 (18.0) 31.0 (18.1)
6.4 (7.5) 9.7 (10.5)
§ p<0.01 for changes between groups. Abbreviations: EnEx = Energy Expenditure, CARBOH = Carbohydrates.