Abstract
The purpose of the present study was to examine the differences in upper body power output among lineman and nonlineman division I collegiate football players and to examine the influence of 2 normalization procedures: (a) simple ratio scaling and (b) standardized allometric scaling. Ten lineman (mean ± SD: age = 19.3 ± 1.6 years; height = 187.7 ± 4.7 cm; mass = 127.7 ± 13.3 kg) and 14 nonlineman (19.6 ± 1.4 years; 181.8 ± 5.2 cm; 92.3 ± 10.6 kg) performed a multiple repetition bench press power test at 50% of their 1 repetition maximum. Peak power (PP) was determined from a Tendo weightlifting analyzer that was attached to the barbell. The PP values were then analyzed under 3 conditions that included: (a) no scaling (absolute values), (b) ratio scaling (PP body mass-1), and (c) allometric scaling (PP body mass-0.67). The results indicated that the larger lineman demonstrated greater absolute PP values (p = 0.02); however, ratio scaling favored the smaller nonlineman group (p = 0.04). There were no differences in PP values between positions after the standardized allometric scaling procedure (p = 0.60). These findings indicated that the standardized allometric scaling procedure may be a more effective method for normalizing PP values among elite division I collegiate football players.
| Original language | English |
|---|---|
| Pages (from-to) | 2269-2273 |
| Number of pages | 5 |
| Journal | Journal of Strength and Conditioning Research |
| Volume | 24 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 Sep 2010 |
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Keywords
- Bench press
- Elite athletes
- Relative power
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The influence of ratio and allometric scaling procedures for normalizing upper body power output in division I collegiate football players. / Thompson, Brennan J.; Smith, Doug B.; Jacobson, Bert H.; Fiddler, Ryan E.; Warren, Aric; Long, Blaine C.; O'Brien, Matthew; Everett, K. Lee; Glass, Rob G.; Ryan, Eric D.
In: Journal of Strength and Conditioning Research, Vol. 24, No. 9, 01.09.2010, p. 2269-2273.Research output: Contribution to journal › Article
TY - JOUR
T1 - The influence of ratio and allometric scaling procedures for normalizing upper body power output in division I collegiate football players
AU - Thompson, Brennan J.
AU - Smith, Doug B.
AU - Jacobson, Bert H.
AU - Fiddler, Ryan E.
AU - Warren, Aric
AU - Long, Blaine C.
AU - O'Brien, Matthew
AU - Everett, K. Lee
AU - Glass, Rob G.
AU - Ryan, Eric D.
PY - 2010/9/1
Y1 - 2010/9/1
N2 - The purpose of the present study was to examine the differences in upper body power output among lineman and nonlineman division I collegiate football players and to examine the influence of 2 normalization procedures: (a) simple ratio scaling and (b) standardized allometric scaling. Ten lineman (mean ± SD: age = 19.3 ± 1.6 years; height = 187.7 ± 4.7 cm; mass = 127.7 ± 13.3 kg) and 14 nonlineman (19.6 ± 1.4 years; 181.8 ± 5.2 cm; 92.3 ± 10.6 kg) performed a multiple repetition bench press power test at 50% of their 1 repetition maximum. Peak power (PP) was determined from a Tendo weightlifting analyzer that was attached to the barbell. The PP values were then analyzed under 3 conditions that included: (a) no scaling (absolute values), (b) ratio scaling (PP body mass-1), and (c) allometric scaling (PP body mass-0.67). The results indicated that the larger lineman demonstrated greater absolute PP values (p = 0.02); however, ratio scaling favored the smaller nonlineman group (p = 0.04). There were no differences in PP values between positions after the standardized allometric scaling procedure (p = 0.60). These findings indicated that the standardized allometric scaling procedure may be a more effective method for normalizing PP values among elite division I collegiate football players.
AB - The purpose of the present study was to examine the differences in upper body power output among lineman and nonlineman division I collegiate football players and to examine the influence of 2 normalization procedures: (a) simple ratio scaling and (b) standardized allometric scaling. Ten lineman (mean ± SD: age = 19.3 ± 1.6 years; height = 187.7 ± 4.7 cm; mass = 127.7 ± 13.3 kg) and 14 nonlineman (19.6 ± 1.4 years; 181.8 ± 5.2 cm; 92.3 ± 10.6 kg) performed a multiple repetition bench press power test at 50% of their 1 repetition maximum. Peak power (PP) was determined from a Tendo weightlifting analyzer that was attached to the barbell. The PP values were then analyzed under 3 conditions that included: (a) no scaling (absolute values), (b) ratio scaling (PP body mass-1), and (c) allometric scaling (PP body mass-0.67). The results indicated that the larger lineman demonstrated greater absolute PP values (p = 0.02); however, ratio scaling favored the smaller nonlineman group (p = 0.04). There were no differences in PP values between positions after the standardized allometric scaling procedure (p = 0.60). These findings indicated that the standardized allometric scaling procedure may be a more effective method for normalizing PP values among elite division I collegiate football players.
KW - Bench press
KW - Elite athletes
KW - Relative power
UR - http://www.scopus.com/inward/record.url?scp=77956933023&partnerID=8YFLogxK
U2 - 10.1519/JSC.0b013e3181e4f5bc
DO - 10.1519/JSC.0b013e3181e4f5bc
M3 - Article
C2 - 20683356
AN - SCOPUS:77956933023
VL - 24
SP - 2269
EP - 2273
JO - Journal of Strength and Conditioning Research
JF - Journal of Strength and Conditioning Research
SN - 1064-8011
IS - 9
ER -