ORIGINAL ARTICLES   

The Journal of Sports Medicine and Physical Fitness 1998 December;38(4):317-22

Copyright © 1999 EDIZIONI MINERVA MEDICA

lingua: Inglese

Cardiovascular stress and lactate formation during gymnastic routines

Goswami A. ¹, Gupta S. ²

¹ Sports Authority of India, Netaji Subhas Western Centre, Sector 15, Gandhinagar, Gujarat, India; ² Occupational Health Service Centre, Steel Authority of India Limited, Rourkela Steel Plant, Rourkela, Orissa, India

Back­ground. Car­ried out to inves­ti­gate car­di­o­vas­cu­lar and meta­bol­ic ­response dur­ing var­i­ous gym­nas­tic rou­tines [Pom­mel ­Horse (PH), ­Roman ­Ring (RR), Par­allel Bar (PB), Hor­i­zon­tal Bar (HB) and ­Floor Exer­cise (FE)].
Meth­ods. Experi­men­tal ­design: com­par­a­tive and ran­dom­ized. Set­ting: gen­er­al pur­pose, appli­cable on gym­nas­tics train­ing.
Par­tic­i­pants. ­Five ­male vol­un­teers ­drawn ­from stu­dents attend­ing ­sports coach­ing ­course in gym­nas­tics at NIB, Patia­la. A ­mixed pop­u­la­tion ­from all ­over ­India who had com­pet­i­tive expe­ri­ence of 6 to 10 ­years. Inter­ven­tions: no inter­ven­tions. Meas­ures: pres­ence of ­heart ­rate over­shoot­ing, ­high lac­tate lev­els and indi­vid­u­al char­ac­ter­is­tics of the gym­nas­tics rou­tines.
­Results. In all the rou­tines ­peak HR was ­much low­er ­than max­i­mum ­heart ­rate (­HRmax) of the gym­nasts. ­Mean HR was low­est in ­first set and high­est in the ­final (3rd set) on all the appa­ra­tus­es. High­est ­mean HR was record­ed in HB fol­lowed by FE, RR, PB and PH respec­tive­ly. ­After ­both ­first and ­third ­sets ­blood lac­tic ­acid (La) was high­est in FE fol­lowed by RR, PB, HB and PH. La lev­els fol­low­ing the ­first set ­were 7.11, 6.77, 6.23, 5.97 and 5.18 mM/l, respec­tive­ly. ­Third set val­ues ­were 10.54, 10.16, 8.95, 8.74 and 8.04 mM/l.
Con­clu­sions. (a) Car­di­o­vas­cu­lar ­load in var­i­ous gym­nas­tic rou­tines is con­sid­er­ably ­less ­than max­i­mal run­ning; (b) HR over­shoot is com­mon at the end of all the ­men’s gym­nas­tic rou­tines; train­ing eval­u­a­tion or per­for­mance eval­u­a­tion in gym­nas­tics ­through ­heart ­rate ­should con­sid­er ­this ­fact to ­avoid any mis­inter­pre­ta­tion; (c) PH is phys­io­log­i­cal­ly ­least demand­ing ­among the ­five ­while FE and RR are ­most stress­ful; (d) rep­e­ti­tion of gym­nas­tic exer­cise rou­tines ­with ­short ­rest ­pause may ­lead the gym­nast to ­reach near­er to his lac­tate tol­er­ance; (e) gym­nas­tics activ­ity is dom­i­nat­ed by anaer­o­bic metab­olism.