Author Topic: weight loss and performance  (Read 1471 times)

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adarqui

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Re: weight loss and performance
« Reply #1 on: December 15, 2015, 08:02:06 pm »
+1
http://journals.lww.com/nsca-jscr/Abstract/2015/01000/Body_Composition_and_Power_Performance_Improved.4.aspx

Body Composition and Power Performance Improved After Weight Reduction in Male Athletes Without Hampering Hormonal Balance

Huovinen, Heikki T.1; Hulmi, Juha J.1; Isolehto, Juha1; Kyröläinen, Heikki1; Puurtinen, Risto1; Karila, Tuomo2; Mackala, Krzysztof3; Mero, Antti A.1

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Abstract
Abstract: Huovinen, HT, Hulmi, JJ, Isolehto, J, Kyröläinen, H, Puurtinen, R, Karila, T, Mackala, K, and Mero, AA. Body composition and power performance improved after weight reduction in male athletes without hampering hormonal balance. J Strength Cond Res 29(1): 29–36, 2015—The aim of this study was to investigate the effects of a 4-week weight reduction period with high protein and reduced carbohydrate intake on body composition, explosive power, speed, serum hormones, and acid-base balance in male track and field jumpers and sprinters. Eight participants were assigned to a high weight reduction group (HWR; energy restriction 750 kcal·d−1) and 7 to a low weight reduction group (LWR; energy restriction 300 kcal·d−1). Energy and carbohydrate intake decreased significantly (p ≤ 0.05) only in HWR by 740 ± 330 kcal·d−1 and 130 ± 29 g·d−1, respectively. Furthermore, total body mass and fat mass decreased (p ≤ 0.05) only in HWR by 2.2 ± 1.0 kg and 1.7 ± 1.6 kg, respectively. Fat-free mass (FFM), serum testosterone, cortisol, and sex hormone–binding globulin did not change significantly. Ca2+ ion and pH decreased (p ≤ 0.05) only in HWR (3.1 ± 2.8% and 0.8 ± 0.8%, respectively), whereas

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declined (p ≤ 0.05) in both groups by 19.3 ± 6.2% in HWR and by 13.1 ± 8.5% in LWR. The countermovement jump and 20-m sprint time improved consistently (p ≤ 0.05) only in HWR, by 2.6 ± 2.5 cm and 0.04 ± 0.04 seconds, respectively. Finally, athletes with a fat percentage of 10% or more at the baseline were able to preserve FFM. In conclusion, altered acid-base balance but improved weight-bearing power performance was observed without negative consequences on serum hormones and FFM after a 4-week weight reduction of 0.5 kg·wk−1 achieved by reduced carbohydrate but maintained high protein intake.

LBSS

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Re: weight loss and performance
« Reply #2 on: December 15, 2015, 11:37:56 pm »
+2
i need to do a cut.
Muscles are nonsensical they have nothing to do with this bullshit.

- Avishek

sunday: run 14+ km
monday: lift
tuesday: run 10-12 km
wednesday: run 10-12 km
thursday: run 10-12 km
friday: rest
saturday: run tempo/VO2 max/speed x 6-8 km

black lives matter

T0ddday

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Re: weight loss and performance
« Reply #3 on: December 16, 2015, 12:48:54 pm »
+1
i need to do a cut.

That's the extra inch I was talking about :).  Add in hyperhydration and dehydration and we are talking 1.5 inches!