PMID- 25539974 OWN - NLM STAT- MEDLINE DCOM- 20160301 LR - 20220311 IS - 1720-8319 (Electronic) IS - 1594-0667 (Linking) VI - 27 IP - 4 DP - 2015 Aug TI - The identification of fall history using maximal and rapid isometric torque characteristics of the hip extensors in healthy, recreationally active elderly females: a preliminary investigation. PG - 431-8 LID - 10.1007/s40520-014-0305-0 [doi] AB - BACKGROUND AND AIMS: Maximal and rapid torque characteristics of the hip extensor muscles play an important role in fall prevention and other balance-related performances; however, few studies have investigated the ability of these variables at identifying fall-history status in healthy, recreationally active elderly adults. This study aimed to examine the effectiveness of maximal and rapid isometric torque characteristics of the hip extensor muscles to differentiate between healthy, recreationally active elderly females with (fallers) and without (non-fallers) a history a falls. METHODS: Six elderly female fallers (mean +/- SD: age = 73 +/- 7 year; mass = 68 +/- 16 kg; height = 160 +/- 5 cm) and nine elderly female non-fallers (age = 71 +/- 7 year; mass = 66 +/- 16 kg; height = 157 +/- 6 cm) performed two isometric maximal voluntary contractions (MVCs) of the hip extensor muscles. Peak torque (PT) and absolute and relative rate of torque development (RTD) at the early (0-50 ms) and late (100-200 ms) phases of muscle contraction were examined during each MVC. RESULTS: Absolute and relative RTD at 0-50 ms were greater (P = 0.039 and 0.011, respectively) in the non-fallers compared to the fallers. However, no group-related differences (P = 0.160-0.573) were observed for PT nor absolute and relative RTD at 100-200 ms. CONCLUSIONS: Early rapid strength production of the hip extensor muscles may be a sensitive and effective measure for discriminating between elderly females of different fall histories. These findings may provide important insight regarding implications for the assessment of fall risk and in the development of proper training programs aimed at minimizing the occurrence of falls and other balance-related injuries in the elderly. FAU - Palmer, Ty B AU - Palmer TB AD - School of Health Sciences, Kent State University, Kent, OH, USA. FAU - Thiele, Ryan M AU - Thiele RM FAU - Williams, Katherine B AU - Williams KB FAU - Adams, Bailey M AU - Adams BM FAU - Akehi, Kazuma AU - Akehi K FAU - Smith, Douglas B AU - Smith DB FAU - Thompson, Brennan J AU - Thompson BJ LA - eng PT - Journal Article DEP - 20141225 PL - Germany TA - Aging Clin Exp Res JT - Aging clinical and experimental research JID - 101132995 SB - IM MH - *Accidental Falls/prevention & control/statistics & numerical data MH - Aged MH - Aging/*physiology MH - Female MH - *Hip MH - Humans MH - Isometric Contraction/*physiology MH - Muscle Strength/physiology MH - Muscle, Skeletal/*physiology MH - Postural Balance/physiology MH - Risk Assessment/methods MH - *Torque EDAT- 2014/12/30 06:00 MHDA- 2016/03/02 06:00 CRDT- 2014/12/26 06:00 PHST- 2014/05/17 00:00 [received] PHST- 2014/12/15 00:00 [accepted] PHST- 2014/12/26 06:00 [entrez] PHST- 2014/12/30 06:00 [pubmed] PHST- 2016/03/02 06:00 [medline] AID - 10.1007/s40520-014-0305-0 [doi] PST - ppublish SO - Aging Clin Exp Res. 2015 Aug;27(4):431-8. doi: 10.1007/s40520-014-0305-0. Epub 2014 Dec 25.