Premium
The effects of whey protein supplementation on body composition and physical performance tests in men (381.2)
Author(s) -
Bilgiç Pelin,
Ersoy Gulgun,
Ergun Nevin,
Hongu Nobuko
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.381.2
Subject(s) - bench press , zoology , whey protein , lean body mass , grip strength , bioelectrical impedance analysis , analysis of variance , medicine , one repetition maximum , leg press , resistance training , body weight , physical therapy , chemistry , biology , food science , body mass index
The purpose of this study was to determine the effects of whey protein supplements on total and regional body compositions and physical performance tests in response to 10 weeks of resistance training. Twenty‐four men aged 18‐32 years, mean age 23 ± 3.4 years, were randomly divided into P rotein (P) group, with whey protein supplementation (70 g/day on training days and 35 g/day on non‐training days) or C ontrol (C) group, without supplementation. Daily mean total protein intakes of P and C groups were 118.2 ± 27.3 g (2.25 ± 0.26 g / kg BW) and 66.3 ± 15.0 g (1.16 ± 0.26g /kg BW), respectively ( p < 0.001). All subjects trained 3 days/week for 10 weeks. At 0 and 10 th weeks, subjects underwent bioelectrical impedance for total and regional body composition measurements and physical performance tests; i.e., one repetition maximum (1RM) strength, hand grip, and wall sit time tests. Data were analyzed using repeated measures ANOVA and presented as mean ±SD changes from baseline. No significant group x time interaction effects were observed among groups in changes in any variable. A significant time effect was observed for lean mass (P:2.3 ± 3.6 kg; C:0.8 ± 0.9 kg), mid‐upper arm area (P:8.0 ± 5.5 cm 2 ; C:0.9 ± 2.5 cm 2 ), bench press 1RM (P:18.5 ± 7.5 kg; C:11.4 ± 6.7 kg), wall sit time test (P:5.9 ± 18.4 sec; C:20.5 ± 31.2 sec), and handgrip test (P:4.9 ± 3.8; C:2.5 ± 2.2,) (all, p < 0.001). During resistance training, daily supplementation with whey protein was effective for promoting gains in lean mass and muscle strength. Grant Funding Source : Supported by Hacettepe University Scientific Research Projects Coordination Unit