Journal
JOURNAL OF SPORTS SCIENCES
Volume 39, Issue 22, Pages 2517-2524Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02640414.2021.1943185
Keywords
Wearable resistance; performance; athletes; training
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The study found that implementing sprinting with weighted garments on the arms can provide specific overload for sprinting in 2-point starting positions, which may be relevant to a wider context of sports performance.
Fusiform weighted garments enable specific loading strategies during sport-specific movements. Loading the arms over during accelerated sprinting from a 2-point start position is pertinent to a variety of sporting performances. Fourteen sprint-trained individuals (age = 20.61 +/- 1.16 years; height = 1.73 m +/- 3.85 cm; body mass 65.33 +/- 4.86 kg; personal best 100-m race time 11.40 +/- 0.39 s) performed unloaded/loaded wearable resistance (WR) sprints. Between-condition step kinematics and kinetics were compared over four acceleration phases: steps 1-4, 5-8, 9-12 and 13-16. Sprint performance did not differ between unloaded and loaded WR at 10-m (-1.41%; ES = -0.32), or 30-m (-0.76%; ES = -0.24). Sprinting with forearm WR significantly decreased step frequency during phase two (p < 0.05, -3.42%; ES = -0.81) and three (-3.60%; ES = -0.86) and step velocity during phase four of the 30 m sprinting task (p < 0.05, -3.61%; ES: 0.91) only. There were no significant differences (p <= 0.05) between step kinetics amongst the two conditions. Findings indicate that arm-loaded WR may provide specific sprinting overload for 2-point starting positions. This may be relevant to a wider sporting context such as field and team sport performances.
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