PMID- 26691408
OWN - NLM
STAT- MEDLINE
DCOM- 20160729
LR  - 20181202
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 30
IP  - 1
DP  - 2016 Jan
TI  - Lower-Body Torque and Power Declines Across Six Decades in Three Hundred 
      Fifty-Seven Men and Women: A Cross-sectional Study With Normative Values.
PG  - 141-58
LID - 10.1519/JSC.0000000000001083 [doi]
AB  - This study presents age-specific and gender-specific patterns and normative 
      values for lower-body isokinetic performance in 195 women and 162 men, 18-80 
      years of age, using data collected from 1991 to 2004. Peak torque (PT) and 
      average power (AP) during knee extension (KE), knee flexion (KF), ankle plantar 
      flexion, and dorsiflexion (DF) at 1.05, 3.14, and 5.24 rad . s(-1) were compared 
      by decade. Knee extension and KF at all speeds showed a significant main effect 
      by age group (G). Men's KEPT and KEAP at 60 and 70 G were significantly different 
      than 20, 30, and 40 G at all speeds. Additionally, 50 G differed from all other 
      groups. For women, 50, 60, and 70 G KEPT and KEAP at 5.24 rad . s (-1)differed 
      significantly from all other age groups. Men's KFPT and KFAP showed no 
      differences among 20, 30, and 40 G, whereas 50 G differed from all groups except 
      60 G. For KFPT and KFAP, women 20 and 30 G differed from other age groups at all 
      testing speeds. Plantar flexion and DF performance declines were speed specific 
      mainly occurring at 3.14 rad . s.(-1) The results reflect declines in strength 
      and power beginning during the fifth decade in men, and earlier in women. The 
      study also provides normative values, which may be used to evaluate neuromuscular 
      performances by gender across decades of life.
FAU - Leyva, Arturo
AU  - Leyva A
AD  - 1Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sports Sciences, University of Miami, Coral Gables, Florida; and2Center on 
      Aging, Miller School of Medicine, University of Miami, Miami, Florida.
FAU - Balachandran, Anoop
AU  - Balachandran A
FAU - Signorile, Joseph F
AU  - Signorile JF
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Age Factors
MH  - Aged
MH  - Aged, 80 and over
MH  - Aging/*physiology
MH  - Ankle Joint/physiology
MH  - Cross-Sectional Studies
MH  - Female
MH  - Humans
MH  - Knee Joint/physiology
MH  - Lower Extremity/physiology
MH  - Male
MH  - Middle Aged
MH  - *Muscle Strength
MH  - Muscle, Skeletal/*physiology
MH  - Sex Factors
MH  - *Torque
MH  - Young Adult
EDAT- 2015/12/23 06:00
MHDA- 2016/07/30 06:00
CRDT- 2015/12/23 06:00
PHST- 2015/12/23 06:00 [entrez]
PHST- 2015/12/23 06:00 [pubmed]
PHST- 2016/07/30 06:00 [medline]
AID - 00124278-201601000-00017 [pii]
AID - 10.1519/JSC.0000000000001083 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2016 Jan;30(1):141-58. doi: 10.1519/JSC.0000000000001083.