Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry

C. Russell Hendrix, Terry J. Housh, Michelle Mielke, Jorge M. Zuniga, Clayton L. Camic, Glen O. Johnson, Richard J. Schmidt, Dona J. Housh

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The purpose of the present study was to examine the acute effects of a caffeine-containing supplement (SUPP) on 1 repetition maximum (1RM) bench press and leg extension strength, as well as time to exhaustion (TTE), during cycle ergometry at a power output that corresponded to 80% of VO2peak. The study used a double-blinded, placebo-controlled, crossover design. Twentyone untrained men (mean ± SD age = 23.0 ± 2.6 yr) were randomly assigned to take either the SUPP or placebo (PLAC) first. The SUPP contained 400 mg of caffeine, 66.7 mg of capsicum extract, 10 mg of bioperine, and 40 mg of niacin, and the PLAC was microcrystalline cellulose. Sixty minutes after taking either the SUPP or PLAC, the subjects were tested for 1RM bench press and leg extension strength, as well as TTE. After 1 week of rest, the subjects ingested the opposite substance (SUPP or PLAC) and were retested for 1RM bench press and leg extension strength, as well as TTE. The results indicated that the SUPP had no effect on 1RM bench press strength, 1RM leg extension strength, or TTE at 80% VO2peak. These findings did not support the use of the caffeinecontaining SUPP in the present study as an ergogenic aid in untrained individuals.

Original languageEnglish (US)
Pages (from-to)859-865
Number of pages7
JournalJournal of strength and conditioning research
Volume24
Issue number3
DOIs
StatePublished - Mar 1 2010

Fingerprint

Ergometry
Caffeine
Leg
Placebos
Capsicum
Niacin
Cross-Over Studies

Keywords

  • Endurance

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry. / Hendrix, C. Russell; Housh, Terry J.; Mielke, Michelle; Zuniga, Jorge M.; Camic, Clayton L.; Johnson, Glen O.; Schmidt, Richard J.; Housh, Dona J.

In: Journal of strength and conditioning research, Vol. 24, No. 3, 01.03.2010, p. 859-865.

Research output: Contribution to journalArticle

Hendrix, C. Russell ; Housh, Terry J. ; Mielke, Michelle ; Zuniga, Jorge M. ; Camic, Clayton L. ; Johnson, Glen O. ; Schmidt, Richard J. ; Housh, Dona J. / Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry. In: Journal of strength and conditioning research. 2010 ; Vol. 24, No. 3. pp. 859-865.
@article{3bc5483166364dc78870d39de738dcf3,
title = "Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry",
abstract = "The purpose of the present study was to examine the acute effects of a caffeine-containing supplement (SUPP) on 1 repetition maximum (1RM) bench press and leg extension strength, as well as time to exhaustion (TTE), during cycle ergometry at a power output that corresponded to 80{\%} of VO2peak. The study used a double-blinded, placebo-controlled, crossover design. Twentyone untrained men (mean ± SD age = 23.0 ± 2.6 yr) were randomly assigned to take either the SUPP or placebo (PLAC) first. The SUPP contained 400 mg of caffeine, 66.7 mg of capsicum extract, 10 mg of bioperine, and 40 mg of niacin, and the PLAC was microcrystalline cellulose. Sixty minutes after taking either the SUPP or PLAC, the subjects were tested for 1RM bench press and leg extension strength, as well as TTE. After 1 week of rest, the subjects ingested the opposite substance (SUPP or PLAC) and were retested for 1RM bench press and leg extension strength, as well as TTE. The results indicated that the SUPP had no effect on 1RM bench press strength, 1RM leg extension strength, or TTE at 80{\%} VO2peak. These findings did not support the use of the caffeinecontaining SUPP in the present study as an ergogenic aid in untrained individuals.",
keywords = "Endurance",
author = "Hendrix, {C. Russell} and Housh, {Terry J.} and Michelle Mielke and Zuniga, {Jorge M.} and Camic, {Clayton L.} and Johnson, {Glen O.} and Schmidt, {Richard J.} and Housh, {Dona J.}",
year = "2010",
month = "3",
day = "1",
doi = "10.1519/JSC.0b013e3181ae7976",
language = "English (US)",
volume = "24",
pages = "859--865",
journal = "Journal of Strength and Conditioning Research",
issn = "1064-8011",
publisher = "NSCA National Strength and Conditioning Association",
number = "3",

}

TY - JOUR

T1 - Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry

AU - Hendrix, C. Russell

AU - Housh, Terry J.

AU - Mielke, Michelle

AU - Zuniga, Jorge M.

AU - Camic, Clayton L.

AU - Johnson, Glen O.

AU - Schmidt, Richard J.

AU - Housh, Dona J.

PY - 2010/3/1

Y1 - 2010/3/1

N2 - The purpose of the present study was to examine the acute effects of a caffeine-containing supplement (SUPP) on 1 repetition maximum (1RM) bench press and leg extension strength, as well as time to exhaustion (TTE), during cycle ergometry at a power output that corresponded to 80% of VO2peak. The study used a double-blinded, placebo-controlled, crossover design. Twentyone untrained men (mean ± SD age = 23.0 ± 2.6 yr) were randomly assigned to take either the SUPP or placebo (PLAC) first. The SUPP contained 400 mg of caffeine, 66.7 mg of capsicum extract, 10 mg of bioperine, and 40 mg of niacin, and the PLAC was microcrystalline cellulose. Sixty minutes after taking either the SUPP or PLAC, the subjects were tested for 1RM bench press and leg extension strength, as well as TTE. After 1 week of rest, the subjects ingested the opposite substance (SUPP or PLAC) and were retested for 1RM bench press and leg extension strength, as well as TTE. The results indicated that the SUPP had no effect on 1RM bench press strength, 1RM leg extension strength, or TTE at 80% VO2peak. These findings did not support the use of the caffeinecontaining SUPP in the present study as an ergogenic aid in untrained individuals.

AB - The purpose of the present study was to examine the acute effects of a caffeine-containing supplement (SUPP) on 1 repetition maximum (1RM) bench press and leg extension strength, as well as time to exhaustion (TTE), during cycle ergometry at a power output that corresponded to 80% of VO2peak. The study used a double-blinded, placebo-controlled, crossover design. Twentyone untrained men (mean ± SD age = 23.0 ± 2.6 yr) were randomly assigned to take either the SUPP or placebo (PLAC) first. The SUPP contained 400 mg of caffeine, 66.7 mg of capsicum extract, 10 mg of bioperine, and 40 mg of niacin, and the PLAC was microcrystalline cellulose. Sixty minutes after taking either the SUPP or PLAC, the subjects were tested for 1RM bench press and leg extension strength, as well as TTE. After 1 week of rest, the subjects ingested the opposite substance (SUPP or PLAC) and were retested for 1RM bench press and leg extension strength, as well as TTE. The results indicated that the SUPP had no effect on 1RM bench press strength, 1RM leg extension strength, or TTE at 80% VO2peak. These findings did not support the use of the caffeinecontaining SUPP in the present study as an ergogenic aid in untrained individuals.

KW - Endurance

UR - http://www.scopus.com/inward/record.url?scp=77950608383&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77950608383&partnerID=8YFLogxK

U2 - 10.1519/JSC.0b013e3181ae7976

DO - 10.1519/JSC.0b013e3181ae7976

M3 - Article

C2 - 19834348

AN - SCOPUS:77950608383

VL - 24

SP - 859

EP - 865

JO - Journal of Strength and Conditioning Research

JF - Journal of Strength and Conditioning Research

SN - 1064-8011

IS - 3

ER -