Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men
Gespeichert in:
| Deutscher übersetzter Titel: | Eine über kurze Zeit durchgeführte Ernährung mit geringem Kohlenhydratgehalt führt bei Männern zur Dissoziation der Laktat- und Ammoniakschwellen |
|---|---|
| Autor: | Langfort, Jozef; Czarnowski, Dariusz; Endzian-Piotrowska, Malgorzta; Zarzeczny, Ryszard; Górski, Jan |
| Erschienen in: | Journal of strength and conditioning research |
| Veröffentlicht: | 18 (2004), 2, S. 260-265, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1064-8011, 1533-4287 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201208005405 |
| Quelle: | BISp |
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PU201208005405 |
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db |
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Literatur |
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2012-08-17T10:06:26Z |
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2012-08-06T14:51:47Z |
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BISp |
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Zeitschriftenartikel |
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JO00000000829 |
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JOI200400020000829 |
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Journal of strength and conditioning research |
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Journal of strength and conditioning research, 2004, 2 |
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PU201208005405 |
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Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men |
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0260 |
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bisparticle |
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2004 |
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2004 |
| language |
eng |
| title |
Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men |
| spellingShingle |
Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men Ammoniak Blutlaktat Ernährung Kohlenhydratzufuhr Mann Schwellenwert Sportmedizin Trainingswissenschaft |
| title_sort |
shortterm lowcarbohydrate diet dissociates lactate and ammonia thresholds in men |
| title_short |
Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men |
| title_alt |
Eine über kurze Zeit durchgeführte Ernährung mit geringem Kohlenhydratgehalt führt bei Männern zur Dissoziation der Laktat- und Ammoniakschwellen |
| title_alt_lang |
deu |
| media_type |
Elektronische Ressource (online) Gedruckte Ressource |
| city |
Colorado Springs |
| abstract |
A low-carbohydrate (L-CHO) diet has been shown to shift the lactate threshold toward higher workloads. The aim of the present study was to examine the effect of an L-CHO diet on the ammonia threshold and to compare it with the lactate threshold in men. The plasma catechol-amine threshold was also measured. Eight young, untrained men participated in the study. Two exercise tests with graded workload were performed. The workload was increased every 3 minutes by 40 W until volitional exhaustion. The first test was performed after 3 days of a controlled mixed diet. After the first test, the mixed diet was switched to a L-CHO diet. Three days later the same test was repeated. The blood concentration of lactate, ammonia, noradrenaline, and adrenaline was measured before and after each workload in both groups. It was found that the concentration of the examined compounds in the blood increases exponentially with graded workload after each kind of diet. This led us to calculate the blood ammonia, lactate, epi-nephrine, and norepinephrine thresholds. The thresholds were defined as points at which the concentration of a given compound starts to increase in a nonlinear fashion, which is calculated using 2 segmental linear regressions. After the mixed diet, the threshold for each compound occurs at the same workload. The L-CHO diet resulted in dissociation of the lactate threshold from the ammonia threshold: the lactate threshold was shifted toward a higher workload, whereas the ammonia threshold was shifted toward a lower workload. The norepinephrine threshold was also shifted toward a lower workload, and the epinephrine threshold remained unchanged. The results obtained indicate that an L-CHO diet accelerates production of ammonia and delays production of lactate during graded exercise, as well as that diet must be strictly controlled when ammonia and lactate thresholds are measured. Verf.-Referat |
| abstract_lang |
eng |
| abstract_type |
abstract |
| author2 |
Langfort, Jozef Czarnowski, Dariusz Endzian-Piotrowska, Malgorzta Zarzeczny, Ryszard Górski, Jan |
| author_facet |
Langfort, Jozef Czarnowski, Dariusz Endzian-Piotrowska, Malgorzta Zarzeczny, Ryszard Górski, Jan |
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Autor Autor Autor Autor Autor |
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P175767 |
| author_author_facet |
Langfort, Jozef Czarnowski, Dariusz Endzian-Piotrowska, Malgorzta Zarzeczny, Ryszard Górski, Jan |
| author2-synonym |
|
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0/Autor/ 1/Autor/Langfort, Jozef/ 0/Autor/ 1/Autor/Czarnowski, Dariusz/ 0/Autor/ 1/Autor/Endzian-Piotrowska, Malgorzta/ 0/Autor/ 1/Autor/Zarzeczny, Ryszard/ 0/Autor/ 1/Autor/Górski, Jan/ |
| url |
http://journals.lww.com/nsca-jscr/Abstract/2004/05000/Short_Term_Low_Carbohydrate_Diet_Dissociates.10.aspx |
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fulltext |
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1 |
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| issn |
1064-8011 1533-4287 |
| spelling |
1064-8011 1533-4287 1156349-7 Ammoniak Blutlaktat Ernährung Kohlenhydratzufuhr Mann Schwellenwert Sportmedizin Trainingswissenschaft ammonia blood lactate carbohydrate supply man nutrition sports medicine threshold training theory Trainingsforschung Trainingstheorie Medizin Geschichte der Medizin Untersuchung, sportmedizinische Wasserdampf Nahrung Kohlenhydratkost Männerklasse training science theory of training science of training Short-term low-carbohydrate diet dissociates lactate and ammonia thresholds in men PU201208005405 201208005405 |
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1156349-7 |
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0/USA/ 1/USA/Colorado/ |
| topic |
Ammoniak Blutlaktat Ernährung Kohlenhydratzufuhr Mann Schwellenwert Sportmedizin Trainingswissenschaft |
| topic_facet |
Ammoniak Blutlaktat Ernährung Kohlenhydratzufuhr Mann Schwellenwert Sportmedizin Trainingswissenschaft |
| topic_en |
ammonia blood lactate carbohydrate supply man nutrition sports medicine threshold training theory |
| topic_en_facet |
ammonia blood lactate carbohydrate supply man nutrition sports medicine threshold training theory |
| synonym |
Trainingsforschung Trainingstheorie Medizin Geschichte der Medizin Untersuchung, sportmedizinische Wasserdampf Nahrung Kohlenhydratkost Männerklasse |
| synonym_en |
training science theory of training science of training |
| journal_facet |
Journal of strength and conditioning research |
| container_title |
Journal of strength and conditioning research |
| container_volume |
18 |
| container_issue |
2 |
| container_start_page |
S. 260-265 |
| has_references |
1 |
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BISp |
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JO00000000829 |
| journal_year |
2004 |
| journal_issue |
2 |
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1810303142273744896 |
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13,263313 |