Carbohydrate Supplementation Improves Time-Trial Cycle Performance at 4300 m Altitude

Fulco, Charles S.; Kambis, K. W.; Friedlander, A. L.; Rock, P. B.; Staab, J. E.; Soares, R.; DeGroot, D. W.; Ardelt, M.; Muza, S. R.; Beidleman, B.; Grediagin, A.; Lewis, S. F.; Cymerman, A.

doi:10.1037/e457792006-001

Cited by 10 publications

(34 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solubility was determined using the procedure 9 . 1 g of powder (dry basis) was dispersed in 100 ml distilled water by blending at high speed (13000 rpm) for 5 min using an Oosthuizen blender (Oster, Mexico).…”

Section: Solubilitymentioning

confidence: 99%

Quality Aspects and Storage Evaluation of Freeze Dried Probiotic Pineapple Lassi Powder

Tabassum¹,

Shiby²,

Pandey³

2017

Def. Life. Sc. Jl.

View full text Add to dashboard Cite

Freeze dried probiotic pineapple lassi powder was developed using Bifidobacterium bifidum (NCDC 235). Quality aspects were determined in terms of physico-chemical parameters, vitamin composition and probiotic viability. Storage changes were monitored at 25±20 °C and -18±20 °C for one year. The reconstituted lassi has carbohydrate content of 22.2 per cent, thiamin 2 mg which meets 2/3 rd of suggested micronutrient intake goal for those working either in cold or at high altitudes. The niacin content in the product is 2.27 mg, riboflavin 0.375 mg and pyridoxine 67.5 mg. An increasing trend in ΔE values 0 to 6.06 was observed at 25±2 °C while no significant difference (p<0.05) was observed at -18±20 °C. pH decreased from 4.71 to 4.1 at 25±2°C and to 4.3 at -18±2°C after 12 months. Browning in terms of absorbance increased significantly (p<0.05) from 0.015 to 0.061 at 25±2°C. Bifidobacterium bifidum count decreased from 9.55 log 10 cfu.ml -1 to 8.87 log 10 cfu.ml -1 and 8.95 log 10 cfu.ml -1 after 12 months at 25±2 °C and -18±2 °C respectively. Probiotic viability did not change significantly throughout the storage period at both the temperatures. This instant powder can also be utilised as a health drink mix with reduced bulk suitable for combat conditions and in high altitudes to overcome logistic problems.

show abstract

Section: Solubilitymentioning

confidence: 99%

Quality Aspects and Storage Evaluation of Freeze Dried Probiotic Pineapple Lassi Powder

Tabassum¹,

Shiby²,

Pandey³

2017

Def. Life. Sc. Jl.

View full text Add to dashboard Cite

show abstract

“…For all tests and throughout the duration of each test, water was provided ad libitum. These procedures have previously been described in detail (9).…”

Section: Long Endurance Performancementioning

confidence: 99%

“…By design, the major difference among the three studies was the amount of moderate altitude acclimatization the volunteers of each study received before being exposed to 4300 m. In one study (9), volunteers had no moderate altitude acclimatization; all were unacclimatized SLR taken directly from sea level to 4300 m. The second study (11) used volunteers who had lived at 2200 m for an average of 21 months before being transported to 4300 m. Therefore, the responses of the volunteers in the present study who lived for 6 days at 2200 m were assessed at 4300m relative to those having no prior moderate altitude acclimatization and to those considered to have full moderate altitude acclimatization (4).…”

Section: Comparisons To Previous Studiesmentioning

confidence: 99%

“…Moderate altitude residents (MAR) who had lived for nearly 2 years at 2200 m performed 50% to 70% better compared to SLR during the first few days of exposure to 4300 m (11). The superior TT performance of the MAR relative to SLR (9) provided an indication of what is likely the maximum benefit that can be derived from acclimatizing to a moderate altitude of 2200 m on subsequent rapid exposure to 4300 m.…”

Section: Introductionmentioning

confidence: 99%

“…The first objective of this study, therefore, was to assess in previously unacclimatized SLR, the effectiveness of acclimatization resulting from 6 days of staging at a moderate altitude of 2200 m on prolonged TT performance during subsequent, initial exposure to 4300 m. Identical standardized procedures to assess 720 kJ cycle TT performances that were used in the current study were also used in our previous studies of SLR (9) and MAR (11). Thus, a second objective was to make comparisons of the effectiveness of staging at a moderate altitude on TT performance during initial exposure to 4300 m relative to no prior altitude acclimatization (i.e., SLR, (9)) and to full, moderate altitude acclimatization (i.e., MAR, (11)).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Living for Six Days at 2200 M Improves Time-Trial Performance of Sea-Level Residents Exposed to 4300 M

Fulco¹,

Muza²,

Beidleman³

et al. 2008

Self Cite

View full text Add to dashboard Cite

Substrate utilization during prolonged exercise with ingestion of 13C-glucose in acute hypobaric hypoxia (4,300 m)

et al. 2006

View full text Add to dashboard Cite

Energy substrate oxidation was measured using indirect respiratory calorimetry combined with tracer technique in five healthy young male subjects, during a 80-min exercise period on ergocycle with ingestion of 140 g of (13)C-labelled glucose, in normoxia and acute hypobaric hypoxia (445 mmHg or 4,300 m), at the same relative [77% V(.-)((O)(2)(max))] and absolute workload (161+/-8 W, corresponding to 77 and 54% V(.-)((O)(2)(max)) in hypoxia and normoxia). The oxidation rate of exogenous glucose was not significantly different in the three experimental situations: 21.4+/-2.9, 20.2+/-1.2 and 17.2+/-0.6 g over the last 40 min of exercise at approximately 77 and approximately 54% V(.-)((O)(2)(max)) in normoxia and in hypoxia, respectively, providing 12.5+/-1.5, 16.8+/-1.1 and 14.9+/-1.1% of the energy yield, although ingestion of glucose during exercise resulted in a higher plasma glucose concentration in hypoxia than normoxia. The contribution of carbohydrate (CHO) oxidation to the energy yield was significantly higher in hypoxia (92.0+/-2.1%) than in normoxia for both a given absolute (75.3+/-5.2%) and relative workload (78.1+/-1.8%). This greater reliance on CHO oxidation in hypoxia was entirely due to the significantly larger contribution of endogenous glucose oxidation to the energy yield: 75.9+/-1.7% versus 66.6+/-3.3 and 55.2+/-3.7% in normoxia at the same relative and absolute workload.

show abstract

Carbohydrate Supplementation Improves Time-Trial Cycle Performance at 4300 m Altitude

Cited by 10 publications

References 0 publications

Quality Aspects and Storage Evaluation of Freeze Dried Probiotic Pineapple Lassi Powder

Quality Aspects and Storage Evaluation of Freeze Dried Probiotic Pineapple Lassi Powder

Living for Six Days at 2200 M Improves Time-Trial Performance of Sea-Level Residents Exposed to 4300 M

Substrate utilization during prolonged exercise with ingestion of 13C-glucose in acute hypobaric hypoxia (4,300 m)

Contact Info

Product

Resources

About