Normalizing strength for body size differences in older adults

被引:65
作者
Davies, MJ
Dalsky, GP
机构
[1] UNIV CONNECTICUT,CTR HLTH,DEPT MED,OSTEOPOROSIS CTR,FARMINGTON,CT
[2] UNIV CONNECTICUT,CTR HLTH,EXERCISE RES LAB,FARMINGTON,CT
关键词
allometric scaling; ratio method; aging;
D O I
10.1097/00005768-199705000-00020
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
The purpose of this study was to compare the normalization methods of ratio standards, allometry, and ANCOVA with knee extensor strength of older adults. The apparently healthy older volunteers were 71 men (mean +/- SD: age, 71 +/- 4 pr; body mass, 81 +/- 10 kg; height, 174 +/- 7 cm) and 77 women (71 +/- 4 yr, 65 +/- 8 kg, 160 +/- 5 cm, respectively). Strength was defined as peak torque (N.m(-1)) and measured with a Cybex II isokinetic dynamometer. Body composition was estimated with dual energy x-ray absorptiometry. With allometry, the body mass exponent (0.74) was not statistically different from theory (0.67). Body mass adjusted strengths were 34.7% (allometry), 32.0% (ANCOVA), and 29.4% (ratio standards) greater in older men than women. Allometry revealed that the bone-free lean tissue mass exponent was not different from ratio standard exponent of 1.0. After adjustments by bone-free lean tissue mass, strength in men remained 16.0% (allometry and ratio standards) higher than in women, but strength differences between genders were eliminated with ANCOVA. The methods used to normalize strength yielded similar results with body mass but conflicting results with bone-free lean tissue mass.
引用
收藏
页码:713 / 717
页数:5
相关论文
共 29 条
[1]  
ANIANSSON A, 1980, SCAND J REHABIL MED, V12, P161
[2]  
[Anonymous], 1992, PEDIATR EXERC SCI, DOI DOI 10.1123/PES.4.4.296
[3]  
Astrand P-O., 1986, TXB WORK PHYSL, P391
[4]   LEG EXTENSOR POWER AND FUNCTIONAL PERFORMANCE IN VERY OLD MEN AND WOMEN [J].
BASSEY, EJ ;
FIATARONE, MA ;
ONEILL, EF ;
KELLY, M ;
EVANS, WJ ;
LIPSITZ, LA .
CLINICAL SCIENCE, 1992, 82 (03) :321-327
[5]   RATIOS AND REGRESSIONS IN BODY-SIZE AND FUNCTION - A COMMENTARY [J].
COOPER, DM ;
BERMAN, N .
JOURNAL OF APPLIED PHYSIOLOGY, 1994, 77 (04) :2015-2017
[6]   ALLOMETRIC SCALING OF VO2 MAX BY BODY-MASS AND LEAN BODY-MASS IN OLDER MEN [J].
DAVIES, MJ ;
DALSKY, GP ;
VANDERBURGH, PM .
JOURNAL OF AGING AND PHYSICAL ACTIVITY, 1995, 3 (04) :324-331
[7]   HIGH-INTENSITY STRENGTH TRAINING IN NONAGENARIANS - EFFECTS ON SKELETAL-MUSCLE [J].
FIATARONE, MA ;
MARKS, EC ;
RYAN, ND ;
MEREDITH, CN ;
LIPSITZ, LA ;
EVANS, WJ .
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1990, 263 (22) :3029-3034
[8]  
GORAN MI, 1995, INT J OBESITY, V19, P638
[9]   THE EFFECTS OF STRENGTH CONDITIONING ON OLDER WOMENS ABILITY TO PERFORM DAILY TASKS [J].
HUNTER, GR ;
TREUTH, MS ;
WEINSIER, RL ;
KEKESSZABO, T ;
KELL, SH ;
ROTH, DL ;
NICHOLSON, C .
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY, 1995, 43 (07) :756-760
[10]   ASSOCIATION OF MUSCLE STRENGTH WITH FUNCTIONAL STATUS OF ELDERLY PEOPLE [J].
HYATT, RH ;
WHITELAW, MN ;
BHAT, A ;
SCOTT, S ;
MAXWELL, JD .
AGE AND AGEING, 1990, 19 (05) :330-336