Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 1998 Marzo;38(1) > The Journal of Sports Medicine and Physical Fitness 1998 Marzo;38(1):53-8

ULTIMO FASCICOLOTHE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111


eTOC

 

ORIGINAL ARTICLES  


The Journal of Sports Medicine and Physical Fitness 1998 Marzo;38(1):53-8

lingua: Inglese

Caf­feine con­sump­tion ­habits do not influ­ence the exer­cise ­blood pres­sure ­response fol­lowing caf­feine inges­tion

Kaminsky L. A., Martin C. A., Whaley M. H.

Adult Phys­ical Fit­ness Pro­grams, Ball ­State Uni­ver­sity, Indi­a­nap­olis, USA


PDF  ESTRATTI


Back­ground. The pur­pose of ­this ­study was to deter­mine if the BP ­response ­during ­walking fol­lowing caf­feine inges­tion dif­fered ­between ­those who reg­u­larly con­sume caf­feine and ­those who do not.
­Methods. A ­double-­blind ­cross-­over experi­mental ­design was ­used. ­Data ­were col­lected in a ­research labor­a­tory ­with a clin­ical exer­cise ­testing ­room. ­Eight reg­ular caf­feine ­users and ­eight men who did not habit­u­ally con­sume caf­feine ­were ­studied. ­Each sub­ject con­sumed of a bev­erage ­once ­with and ­once ­without 4.5 mg caf­feine/kg fat-­free ­mass ­added to the ­drink. Fol­lowing con­sump­tion ­each sub­ject ­walked at ­three inten­sities of exer­cise (30, 50, and 70% of V.O2­peak). Meas­ures of BP ­were ­obtained by the aus­cul­ta­tory tech­nique.
­Results. Caf­feine con­sump­tion ­resulted in sig­nif­i­cant ­increases in ­both sys­tolic BP and dia­stolic BP at ­rest and ­during exer­cise. The ele­va­tion ­during exer­cise was 7-8 ­mmHg at all ­three exer­cise inten­sities for sys­tolic BP; how­ever, for dia­stolic BP ­there was ­only a sig­nif­i­cant ele­va­tion (4 ­mmHg) at the ­highest exer­cise inten­sity. No dif­fer­ences ­were ­noted ­between ­those men who reg­u­larly con­sume and ­those who reg­u­larly ­abstain ­from caf­feine. ­There was a ­wide ­range in the ­resting BP ­response to caf­feine (com­bined SBP and DBP ­ranged ­from 10-39 ­mmHg) sug­gesting ­that ­there are ­marked dif­fer­ences in sen­si­tivity to caf­feine, irre­spec­tive of ­individuals’ con­sump­tion ­habits.
Con­clu­sions. Con­sid­er­a­tion ­should be ­given to caf­feine ­intake ­prior to exer­cise in ­patients for ­whom an addi­tional ­increase in BP ­during exer­cise ­would not be desir­able.

inizio pagina