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Original articles   

The Journal of Sports Medicine and Physical Fitness 2001 December;41(4):539-45


lingua: Inglese

The effects of exercise on mood changes: the moderating effect of depressed mood

Lane A. M., Lovejoy D. J.

From the University of Wolverhampton, Walsall * Brunel University, Isleworth, Middlesex, UK


Background. The ­present ­study exam­ined the ­extent to ­which pre-exer­cise ­depressed ­mood mod­er­at­ed the influ­ence of exer­cise on chang­es in oth­er ­mood dimen­sions. The ­study was con­duct­ed in an eco­log­i­cal­ly val­id set­ting ­using par­tic­i­pants ­with pre­vi­ous expe­ri­ence of aero­bic ­dance exer­cise. We hypoth­e­sized ­that (a) exer­cise ­will be asso­ciat­ed ­with ­improved ­mood regard­less of depressed ­mood, (b) the ­effect of exer­cise on ­mood chang­es ­would be sig­nif­i­cant­ly great­er ­among indi­vid­u­als ­that report­ed symp­toms of depressed ­mood ­before exer­cise, and (c) ­that pre-exer­cise depressed ­mood ­will be asso­ciat­ed ­with a ­mood pro­file com­pris­ing ­high anger, confusion, fatigue, and tension, ­with low vigor.
Methods. Participants ­were 80 (M=27.90 ­years, SD=4.32 ­years) exer­cis­ers who had attend­ed an exer­cise ­class on a reg­u­lar ­basis for the pre­vi­ous ­three ­months. Participants com­plet­ed the Profile of Mood States-A 15 min­utes ­before exer­cise and ­then imme­di­ate­ly ­after an aero­bic ­dance exer­cise ­class. To exam­ine the pro­posed mod­er­at­ing influ­ence of ­depressed ­mood, par­tic­i­pants ­were ­grouped ­into ­either a no-depres­sion ­group, or a depressed ­mood ­group ­using pre-exer­cise depression ­scores. The exer­cise inter­ven­tion was an aero­bic ­dance ses­sion ­where par­tic­i­pants fol­lowed the ­moves of the instruc­tor. The ses­sion last­ed for 60 min­utes includ­ing a ­warm-up, ­main ses­sion, and ­cool-­down.
Results. Repeated meas­ures MANO­VA (­time x depression/no-depres­sion ­group) ­results indi­cat­ed ­that anger, confusion, fatigue, tension, and vigor ­reduced sig­nif­i­cant­ly. Thus sup­port­ing the ­notion ­that exer­cise reduc­es neg­a­tive ­mood. Results indi­cat­ed ­that the reduc­tion in anger, confusion, fatigue, and tension, and ­increase in vigor was sig­nif­i­cant­ly great­er in the depressed ­mood ­group, ­hence con­sis­tent ­with theo­ret­i­cal pre­dic­tions. Results dem­on­strat­ed ­that pre-exer­cise depressed ­mood was asso­ciat­ed ­with a neg­a­tive ­mood pro­file as hypoth­e­sized.
Conclusions. Findings ­lend sup­port to the ­notion ­that exer­cise is asso­ciat­ed ­with ­improved ­mood. However, find­ings ­show ­that ­this ­effect was sig­nif­i­cant­ly great­er ­among indi­vid­u­als report­ing symp­toms of depressed ­mood ­before exer­cise.

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