Knee flexor and extensor torque ratio in elderly men and women with and without obesity: a cross-sectional study.
Aging
Conventional ratio
Knee flexors
Muscle function
Obesity
Journal
Aging clinical and experimental research
ISSN: 1720-8319
Titre abrégé: Aging Clin Exp Res
Pays: Germany
ID NLM: 101132995
Informations de publication
Date de publication:
Jan 2022
Jan 2022
Historique:
received:
30
03
2021
accepted:
07
05
2021
pubmed:
16
5
2021
medline:
1
2
2022
entrez:
15
5
2021
Statut:
ppublish
Résumé
With aging and obesity lower limb torque deteriorates. Importantly, the ratio between knee flexor (KF) and extensor (KE) torque is an indicator of joint stability. We compared KF torque and KF/KE ratio in older subjects of both sexes with obesity (OB) or without (NOB) obesity. The maximal torque during KE and KF isokinetic contractions were evaluated at: 60, 90, 150, 180 and 210 deg/s in 89 elderly (68 ± 5 years) subjects with NOB (BMI < 30 kg/m At all speeds men had higher absolute KF values (P < 0.001). When values were normalised for BW, sex differences remain in favour of men (P < 0.001) with lower values in both groups with OB than NOB (P < 0.001). Muscle quality and KF/KE ratio were lower in OB than NOB (P < 0.001). The KF torque and KF/KE ratio decline with aging and with OB. In all groups, the KF/KE ratio was below the joint stability threshold. Thus, exercise physiologists should include exercises designed to train both KE and KF in older subjects with OB.
Sections du résumé
BACKGROUND
BACKGROUND
With aging and obesity lower limb torque deteriorates. Importantly, the ratio between knee flexor (KF) and extensor (KE) torque is an indicator of joint stability.
AIMS
OBJECTIVE
We compared KF torque and KF/KE ratio in older subjects of both sexes with obesity (OB) or without (NOB) obesity.
METHODS
METHODS
The maximal torque during KE and KF isokinetic contractions were evaluated at: 60, 90, 150, 180 and 210 deg/s in 89 elderly (68 ± 5 years) subjects with NOB (BMI < 30 kg/m
RESULTS
RESULTS
At all speeds men had higher absolute KF values (P < 0.001). When values were normalised for BW, sex differences remain in favour of men (P < 0.001) with lower values in both groups with OB than NOB (P < 0.001). Muscle quality and KF/KE ratio were lower in OB than NOB (P < 0.001).
CONCLUSIONS
CONCLUSIONS
The KF torque and KF/KE ratio decline with aging and with OB. In all groups, the KF/KE ratio was below the joint stability threshold. Thus, exercise physiologists should include exercises designed to train both KE and KF in older subjects with OB.
Identifiants
pubmed: 33991332
doi: 10.1007/s40520-021-01884-1
pii: 10.1007/s40520-021-01884-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
209-214Informations de copyright
© 2021. The Author(s), under exclusive licence to Springer Nature Switzerland AG.
Références
Kelly T, Yang W, Chen C-S et al (2008) Global burden of obesity in 2005 and projections to 2030. Int J Obes 32:1431–1437
doi: 10.1038/ijo.2008.102
Borges VS, Domingues JM, Dias RC et al (2015) Strength and torque consistency of the hip and knee flexors and extensors: a comparative study of elderly and young individuals. Isokinet Exerc Sci 23:45–51
doi: 10.3233/IES-140563
Buckinx F, Gaudreau P, Marcangeli V et al (2019) Muscle adaptation in response to a high-intensity interval training in obese older adults: effect of daily protein intake distribution. Aging Clin Exp Res 31:863–874
doi: 10.1007/s40520-019-01149-y
Rossi-Izquierdo M, Santos-Pérez S, Faraldo-García A et al (2016) Impact of obesity in elderly patients with postural instability. Aging Clin Exp Res 28:423–428
doi: 10.1007/s40520-015-0414-4
Bollinger LM (2017) Potential contributions of skeletal muscle contractile dysfunction to altered biomechanics in obesity. Gait Posture 56:100–107. https://doi.org/10.1016/j.gaitpost.2017.05.003
doi: 10.1016/j.gaitpost.2017.05.003
pubmed: 28528004
de Zwart AH, van der Esch M, Pijnappels MA et al (2015) Falls associated with muscle strength in patients with knee osteoarthritis and self-reported knee instability. J Rheumatol 42:1218–1223
doi: 10.3899/jrheum.140517
da Rosa Orssatto LB, de Moura BM, Sakugawa RL et al (2018) Leg press exercise can reduce functional hamstring: quadriceps ratio in the elderly. J Bodyw Mov Ther 22:592–597
doi: 10.1016/j.jbmt.2017.09.023
Behan FP, Maden-Wilkinson TM, Pain MT, Folland JP (2018) Sex differences in muscle morphology of the knee flexors and knee extensors. PLoS ONE 13:e0190903
doi: 10.1371/journal.pone.0190903
Segal NA, Findlay C, Wang K et al (2012) The longitudinal relationship between thigh muscle mass and the development of knee osteoarthritis. Osteoarthr Cartil 20:1534–1540
doi: 10.1016/j.joca.2012.08.019
Muollo V, Rossi AP, Zignoli A et al (2021) Full characterisation of knee extensors’ function in ageing: effect of sex and obesity. Int J Obes 45:1–11
doi: 10.1038/s41366-021-00755-z
Skalsky AJ, Han JJ, Abresch RT et al (2009) Assessment of regional body composition with dual-energy X-ray absorptiometry in Duchenne muscular dystrophy: correlation of regional lean mass and quantitative strength. Muscle Nerve Off J Am Assoc Electrodiagn Med 39:647–651
doi: 10.1002/mus.21212
Capodaglio P, Vismara L, Menegoni F et al (2009) Strength characterization of knee flexor and extensor muscles in Prader-Willi and obese patients. BMC Musculoskelet Disord 10:1–8
doi: 10.1186/1471-2474-10-47
Akima H, Kano Y, Enomoto Y et al (2001) Muscle function in 164 men and women aged 20–84 yr. Med Sci Sports Exerc 33:220–226
doi: 10.1097/00005768-200102000-00008
Hulens M, Vansant G, Lysens R et al (2001) Study of differences in peripheral muscle strength of lean versus obese women: an allometric approach. Int J Obes 25:676–681
doi: 10.1038/sj.ijo.0801560
Samuel D, Rowe P, Nicol A (2013) The functional demand (FD) placed on the knee and hip of older adults during everyday activities. Arch Gerontol Geriatr 57:192–197
doi: 10.1016/j.archger.2013.03.003