Efeitos Agudos do Treinamento de Suspensão na Força e Potência

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Acute Effects of Suspension Training on Strength and Power Performances
Conference Paper · October 2014
DOI: 10.12863/ejssxs1x-2014
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Some of the authors of this publication are also working on these related projects:
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Cristina Cortis
Università degli studi di Cassino e del Lazio Meridionale
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Giuseppe Francesco Giancotti
Università degli studi di Cassino e del Lazio Meridionale
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Andrea Fusco
Università degli studi di Cassino e del Lazio Meridionale
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William J Kraemer
The Ohio State University
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Acute Effects of Suspension Training on Strength and Power Performances 
 
Cristina Cortis
1
, Giuseppe F Giancotti
1
, Veronica Meta
1
, Francesca Di Cecio
1
, Andrea Fusco
1
, Girolamo 
Invelito
1
, William J Kraemer
2
, Laura Capranica
3 
 
 
1
Department of Human Sciences, Society and Health, University of Cassino e Lazio Meridionale, Italy 
2
Department of Kinesiology, University of Connecticut, USA 
3
Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Italy
 
 
Recently, suspension straps (TRX) have become a popular form of resistance training. Although TRX can elicit 
higher muscle activations with respect to traditional exercises (McGill et al 2014), there is a need of information on 
acute effects of a TRX training session. The aim of this study was to examine strength and power 
performances before (pre) and after (post) a 45-min TRX session. Six female college students (Age: 
26.0±3.8years; Height: 1.7±0.1m; Weight: 58.4±3.2Kg; BMI: 21.0±1.5) performed Squat (SJ) and 
Countermovement (CMJ) jumps on a portable force plate. Evaluations of lower limbs Maximum Voluntary 
Contraction (MVC) at 90° angle isometric knee extension were performed through a piezoelectric force 
transducer, and a hydraulic hand dynamometer was used to measure grip strength (HG). MVC and HG were 
measured in dominant and non-dominant limbs. The CR10 rate of perceived exertion (RPE, Borg 1998) was 
administered at the end of the TRX session to evaluate the exercise intensity. Subject rated the TRX session 
as hard(5.8±2.5). Differences (p<0.05) were found in SJ (pre: 21.0±3.0cm; post: 24.3±1.6cm) and MVC in 
the dominant limb (pre: 352.7±54.9N; post: 329.4±56.2N). No difference was found in CMJ (pre: 25.1±2.2cm; 
post: 26.2±1.1cm) and MVC in the non-dominant limb (pre: 322.1±53.1N; post: 321.6±57.5N). For HG, 
differences (p<0.05) emerged only with respect to hand dominance with higher values in the dominant hand 
(pre: 309.0±46.3N; post: 312.3±52.1N) with respect to non-dominant one (pre: 289.4±40.6N; post: 
289.4±51.8N). These findings indicated that female subjects were able to maintain their strength and 
improve their power at the end of the TRX session. It is possible to speculate that an exercise-related 
arousing effect counteracts fatigue effects and facilitates the performance of complex motor tasks such as 
power performance. 
References 
McGill SM et al (2014) J Strength Cond Res, 28: 105-116 
Borg (1998), Human Kinetics 
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