Ricerca avanzata

Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 2002 Settembre;42(3) > The Journal of Sports Medicine and Physical Fitness 2002 Settembre;42(3):340-7

FASCICOLI E ARTICOLI   I PIÙ LETTI   eTOC

ULTIMO FASCICOLOTHE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport

Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111

Periodicità: Mensile

ISSN 0022-4707

Online ISSN 1827-1928

 

The Journal of Sports Medicine and Physical Fitness 2002 Settembre;42(3):340-7

BODY COMPOSITION, SPORT NUTRITION AND SUPPLEMENTATION 

 Original articles

Effects of high-calorie supplements on body composition and muscular strength following resistance training

Rozenek R., Ward P., Long S., Garhammer J.

From the Depart­ment of Kin­e­sio­logy and Phys­ical Edu­ca­tion Cal­i­fornia ­State Uni­ver­sity ­Long ­Beach Long ­Beach, Cal­i­fornia, ­USA

Back­ground. Sev­enty-­three ­healthy, ­male sub­jects ran­domly ­divided ­into 3 ­groups par­tic­i­pated in a ­study to deter­mine the ­effects of 2 ­high-cal­orie nutri­tional sup­ple­ments on ­body com­po­si­tion, ­body seg­ment cir­cum­fer­ences, and mus­cular ­strength fol­lowing a resis­tance-­training (RT) pro­gram.
­Methods. In addi­tion to ­their ­normal ­diets ­group 1 (CHO/PRO; n=26) con­sumed a 8.4 Mj × day-1 (2010 ­kcal) ­high cal­orie, ­high pro­tein sup­ple­ment con­taining 356 g car­bo­hy­drate and 106 g pro­tein. ­Group 2 (CHO; n=25) con­sumed a car­bo­hy­drate sup­ple­ment ­that was iso­ca­loric ­with CHO/PRO. ­Group 3 (­CTRL; n=22) ­received no sup­ple­ment and ­served as a con­trol. All sub­jects ­were ­placed on a 4-day × ­week-1 RT pro­gram for 8 ­weeks.
­Results. Die­tary anal­ysis ­revealed no sig­nif­i­cant dif­fer­ences in ­total ­energy con­sump­tion or nutri­ents at any ­time in the non-sup­ple­mented ­diets of the 3 ­groups. Sig­nif­i­cant (p≤0.05) ­increases in ­body ­mass (BM) and fat-­free ­mass (FFM) ­were ­observed in CHO/PRO and CHO com­pared to ­CTRL. ­Mean (± SD) ­increases in BM ­were 3.1±3.1 kg and 3.1±2.2 kg, respec­tively. Fat-­free ­mass sig­nif­i­cantly (p≤0.05) ­increased 2.9±3.4 kg in CHO/PRO and 3.4±2.5 kg in CHO. Mus­cular ­strength, as meas­ured by a one-rep­e­ti­tion max­imum in the ­bench ­press, leg ­press, and lat-­pull ­down ­increased sig­nif­i­cantly (p≤0.05) in all ­groups. No sig­nif­i­cant dif­fer­ences in ­strength meas­ures ­were ­observed ­among ­groups fol­lowing ­training.
Con­clu­sions. ­Results indi­cate ­that ­high-cal­orie sup­ple­ments are effec­tive in ­increasing BM and FFM ­when com­bined ­with RT. How­ever, ­once indi­vidual pro­tein require­ments are met, ­energy con­tent of the ­diet has the ­largest ­effect on ­body com­po­si­tion.

lingua: Inglese


FULL TEXT  ESTRATTI

inizio pagina