| 効果 | なし |
| 試験方法 | 二重盲検法 |
| 試験期間 | 1-6 ヶ月 |
| 被験者数 | 10 |
| 性別 | 男性 |
| 年齢 | 18-29, 30-44 |
| 体型 | トレーニング中, 平均 |
この研究の注釈：
While 10g colostrum (relative to the placebo of 10g whey protein) did not influence baseline testosterone when supplemented by elite male cyclists over eight weeks, the expected reduction in testosterone seen during a five day road race was attenuated and the circadian rhythm of testosterone (which was normalized in control) was preserved.
While 10g colostrum (relative to the placebo of 10g whey protein) did not influence baseline testosterone when supplemented by elite male cyclists over eight weeks, the expected reduction in testosterone seen during a five day road race was attenuated and the circadian rhythm of testosterone (which was normalized in control) was preserved.
Cortisol was increase in morning salivary measurements on the first day of the race (no influence on nightly readings), and IgA was no influenced in the saliva under any context.
A Pilot Study: Bovine Colostrum Supplementation And Hormonal And Autonomic Responses To Competitive Cycling
| 効果 | 増加 |
| 試験方法 | 二重盲検法 |
| 試験期間 | 1-6 ヶ月 |
| 被験者数 | 10 |
| 性別 | 男性 |
| 年齢 | 18-29, 30-44 |
| 体型 | トレーニング中, 平均 |
この研究の注釈：
While 10g colostrum (relative to the placebo of 10g whey protein) did not influence baseline testosterone when supplemented by elite male cyclists over eight weeks, the expected reduction in testosterone seen during a five day road race was attenuated and the circadian rhythm of testosterone (which was normalized in control) was preserved.
While 10g colostrum (relative to the placebo of 10g whey protein) did not influence baseline testosterone when supplemented by elite male cyclists over eight weeks, the expected reduction in testosterone seen during a five day road race was attenuated and the circadian rhythm of testosterone (which was normalized in control) was preserved.
Cortisol was increase in morning salivary measurements on the first day of the race (no influence on nightly readings), and IgA was no influenced in the saliva under any context.
Effects Of Bovine Colostrum Supplementation On Serum IGF-I, IgG, Hormone, And Saliva IgA During Training
| 効果 | なし |
| 試験方法 | コホート法 |
| 試験期間 | 1-2 週間 |
| 被験者数 | 9 |
| 性別 | 男性 |
| 年齢 | 18-29 |
| 体型 | トレーニング中, 平均 |
この研究の注釈：
Supplementation of bovine colostrum (25mL or a 125mL beverage) conferring 49mg IgG and 8.5mcg IGF-1 (125mL group) in otherwise healthy adults for eight days failed to increase IGF-1 overall, but when comparing the levels of IGF-1 pretraining and posttraining it was noted that the colostrum groups had a larger increase in IGF-1 relative to placebo.
Supplementation of bovine colostrum (25mL or a 125mL beverage) conferring 49mg IgG and 8.5mcg IGF-1 (125mL group) in otherwise healthy adults for eight days failed to increase IGF-1 overall, but when comparing the levels of IGF-1 pretraining and posttraining it was noted that the colostrum groups had a larger increase in IGF-1 relative to placebo.
There was also a nonsignificant trend to increase IGF-1 over the eight days of the study when compared to placebo, but due to lower baseline IGF-1 in its groups there was a significant increase when comparing the levels of IGF-1 after the study to their own baseline values.
Power output as assessed by jumping was not altered in any group.