Ski-Expander

Propulse yourself forward!

Poling plays a critical role in cross-country skiing and requires strength endurance of the upper body, particularly of the arms. During V2 skating techniques 20-30% of the body weight can occur ⁽¹⁾, during double poling even up to 35%, depending on the terrain ⁽²⁾.

The Ski-Expander tubes of REFIT from Sweden were developed particularly for cross-country indoor training in collaboration with elite racer and Vasa specialist Mattias Svahn. With a length of 2 x 1.2m they allow the simulation of poling during the different cross-country techniques (skating, diagonal) and therefore serve as ideal upper body and arm training tools. They can be easily mounted on every door, and thanks to the low volume and weight each Ski-Expander is an ideal travel companion.

Their modular properties with useful accessories allow different exercises for specific cross-country ski training of the upper body and the legs.

Select the tube resistance according to your fitness. In the diagram below you find the values for 3 different tube resistances depicted as weight over expansion.

> Resistance strength diagram of Ski-Expander (expansion-weight)

Concentrate on strength endurance by working with rather low resistance but for a longer workout time and with more repetitions. At an advanced training level you may increase the tube resistance and the number of repetitions.

EXPANDER Medium	Red	CHF 55.50
EXPANDER Strong	Black	CHF 55.50
EXPANDER X-Strong	Gray	CHF 55.50

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_{All prices include Swiss VAT, shipping costs are not included}

REFIT EXPANDER Accessories

The accessories allow specific cross-country ski indoor training exercises in modular combination with EXPANDER tubes of REFIT.

Foot strap

The comfortable foot strap is particularly suited for the training of the legs for both the diagonal and the skating technique.

> REFIT exercises with foot strap

Foot strap

Single size

CHF 16.80

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Hand straps

The comfortable and adjustable hand straps are derived from the XC pole straps and thus allow a full feeling of poling during your indoor training.

> REFIT exercises with hand strap

Hand straps (pair)	S	CHF 27.50
Hand straps (pair)	M	CHF 27.50
Hand straps (pair)	L	CHF 27.50

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_{S = glove size women 6 – 7 ½}
_{M = glove size women 8-9, men 7-8 ½}
_{L = glove size men 8-11}

EXPANDER promo-sets

REFIT-Set

1 REFIT EXPANDER tube +
1 foot strap +
1 pair of hand straps

CHF 87.50

_{you save 12%!}

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INDOOR-Set

2 REFIT EXPANDER tubes +
1 BalanceBoard

CHF 162.00

_{you save 12%!}

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^{(1) Millet Guillaume Y, Poling forces during roller skiing: effects of technique and speed, Medicine & Science in Sports & Exercise, Vol 30(11), Nov 1998, pp 1645-1653
(2) Millet Guillaume Y, Poling forces during roller skiing: effects of grade, Medicine & Science in Sports & Exercise, Vol 30(11), Nov 1998, pp 1637-1644}