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Strength conditioning in wheelchair athlete

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STRENGTH CONDITIONING IN WHEELCHAIR ATHLETES

Gollin

1

 M, PhD, Beratto

L, PhDc

1 Department of Clinical and Biological Sciences; Motor Science Research Center, University School of  Exercise & Sport Sciences, University of Turin, Italy 2 PhDc in Experimental Medicine and Therapy, University of Turin, Italy 

Conclusion

The human body benefits of the ability to adapt as a result of specific muscle stimulation (Jones et  al.  1989,  Mujika  and  Padilla  2001):  four  weeks  of  weight  training  modify  significantly  physical  efficiency in wheelchair tennis athletes.

Results

Data  analysis  (T0  vs  T1,  Wilcoxon  test)  showed  a  significant  increase  in  EG:  MVC  WoR  (p<0.05,  +16%),  MVC  WR  (p<0.05,  +11%),  IMVC  WoR  (p<0.05,  +8%)  and  IMVC  WR  (p<0.05,  +7%).  No  significant changes were observed in CG (Figure 4,5). 

References

1. Jones DA, Rutherford OM, Parker DF. Physiological changes in skeletal muscle as a result of strength  training, Quarterly journal of experimental physiology, 1989, 74:  233-256

2. Mujika  I, Padilla  S, Muscular characteristics of detraining in humans, Medicine  & Science in Sport  &  Exercise. 2001: 1297-1303

Methods

Twelve  wheelchair  tennis athletes  were  divided  in  experimental  group  (EG,    age  42±12  years,  weight  63±16  kg,  height  170±18  cm,  period  of  training  5±3  years)  that  in  addition  to  tennis  training  (twice  a  week),  followed  a  weight  training  protocol  for  four  weeks  (twice  a  week);  the  control  group  (CG,  age  44±8  years,  weight  79±17  kg,  height  175±7  cm,  period  of  training  10±4  years)  did  not  change  their  tennis  habits.  The  strength  was  measured  using  the  TESYS  System  (Total  Evaluation  System,  Globus,  Treviso,  Italy)  which  was  connected  to  a  load  cell  (Figure 1). Strength performance was evaluated at the beginning (T0) and  after (T1) one month of training to verify the effects of weight training with  two  specific  isometric  test:  the  first  consisted  in  3  MVC  separated  of  3  minutes  of  recovery.  The  second  consisted  in  10  maximal  concentric  repetitions  lasting  3  seconds  with  a  3  second  pause  between  each  one  (Figure 2,3).

Introduction

The trainer needs to obtain precise scientific information in order to organize a training programme to  increase  the  fundamental  and  specific  physical  capabilities  of  the  athletes  (strength,  speed  and  flexibility). The  aim  of  this  research  was  to  investigate  the  variation  of  Intermittent  and  Maximal  Voluntary  Contraction  (IMVC)  with  (WR)  and  without  racquets  (WoR)  in  relation  to  specific  weight  training protocol in a group of wheelchair tennis athletes. Figure 5: Isometric IMVC in EG: NR and R conditions Figure 2: Isometric MVC  Test with Racquets (R) Figure 4: Isometric MVC in EG: NR and R conditions Figure 3: Isometric MVC  Test without Racquets  (NR) Figure 1: TESYS System  and load cell

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