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CURRENT ISSUETHE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology

Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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Frequency: Monthly

ISSN 0022-4707

Online ISSN 1827-1928

 

The Journal of Sports Medicine and Physical Fitness 1998 December;38(4):330-6

    ORIGINAL ARTICLES

Isokinetic test­ing of flex­or and exten­sor mus­cles in ath­letes suffe­r­ing ­from low ­back ­pain

Ganzit G. P., Chisotti L., Albertini G., Martore M., Gribaudo C. G.

Institute of Sports Medicine, ­CONI-­FMSI, Turin, Italy

Background. The aim of the ­study was to ver­i­fy the use­ful­ness of iso­ki­net­ic test­ing in ath­letes ­with chron­ic low ­back ­pain (LBP) to ­obtain quan­ti­ta­tive infor­ma­tion for reha­bil­i­ta­tion pur­pos­es.
Methods. Experimental ­design: a com­par­a­tive ­study. Setting: Physiotherapy Depart­ment - Institute of Sports Medicine in Italy. Participants: 50 men, ­aged 25 - 65, prac­tis­ing run­ning, ­cycling, tri­ath­lon, ten­nis, soc­cer, bas­ket­ball, vol­ley­ball, ski­ing and ­golf. The ­patients ­were divid­ed ­into two ­groups. Group A was treat­ed for 3 ­months ­with pos­tu­ral exer­cis­es 2 or 3 ­times a ­week. Group B was treat­ed for the ­same peri­od of ­time ­with resis­tive exer­cis­es per­formed by resort­ing to spe­cif­ic ­machines.
Measurements: before and ­after treat­ment, ­trunk mus­cle ­strength was eval­u­at­ed by ­means of an iso­ki­net­ic ­test car­ried out in a seat­ed posi­tion. The iso­ki­net­ic meas­ure­ments ­used ­were ­peak ­torque (PT), ­work, pow­er-in the ­best rep­e­ti­tion and ­total ­work (TW) in ­four rep­e­ti­tions. Both the ­pain and the func­tion­al impair­ment dur­ing phys­i­cal activ­ity was eval­u­at­ed by sub­jec­tive vis­u­al ana­log­ic ­scale.
Results. The PT ­showed a par­allel ­increase in flex­or and exten­sor mus­cles in Group A. In Group B it ­increased by 32.2% at 60°/s and 44.1% at 120°/s as for the exten­sor mus­cles ­while the flex­ion-to-exten­sion ­ratio ­decreased sig­nif­i­cant­ly. The TW reg­is­tered a ­bigger per­cent­age ­increase in ­both ­groups (+21% at 60°/s and +20.4% at 120°/s in Group A; +36.5% at 60°/s and +50.3% at 120°/s in Group B).
Conclusions. The two reha­bil­i­ta­tion pro­grammes had the ­same ­effect on the ­course of LBP, but in Group B we ­observed a ­bigger ­increase in ­strength ­which ­could be poten­tial­ly use­ful dur­ing a ­sports activ­ity.

language: English


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