Strength and power as physical resources for snow shoveling

Isao MORITA; Akihiko YAMAGUCHI; Tsutomu SUDA

doi:10.5331/seppyo.64.631

ショベル除雪と筋力・筋パワーについて

森田勲, 山口明彦, 須田力

著者情報

キーワード: ショベル除雪, 筋力, 脚伸展パワー

ジャーナルフリー

2002 年 64 巻 6 号 p. 631-639

DOI https://doi.org/10.5331/seppyo.64.631

詳細

発行日: 2002/11/15 受付日: 2002/09/12 J-STAGE公開日: 2009/08/07 受理日: 2002/09/24 早期公開日: - 改訂日: -
訂正情報
訂正日: 2009/08/07 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : This study was designed to clarify the relationship between power required for snow shoveling and physical resources. The subjects were 258 male college freshmen, including 126 from snowy regions of Japan (S group) and 132 from non-snowy regions of Japan (NS group) . All subjects performed fitness tests, including tests of grip strength, back strength and leg extension power, and tests to determine maximal snow throwing distances using 5-kg and 10-kg shovel loads. Despite the fact that there were no significant differences between the two groups in mean values of height, weight, grip strength, back strength and leg extension power, the mean snow throwing distance in the S group was significantly greater than that in the NS group for both a 5-kg shovel load(6.5±1.3 m vs 5.9±1.1 m, p <0.01)and a 10-kg shovel load(4.2±0.77 m vs 3.9±0.76 m, p <0.01). Throwing distances of both 5-kg and 10-kg shovel loads were significantly correlated with physical stature and with fitness parameters. When the subjects in the S group were divided into subgroups according to frequency of performance of snow shoveling, it was found that the results for the subgroup of subjects who regularly did snow shoveling were better than those for the subgroup of subjects who rarely did snow shoveling and those for the NS group. The results indicated that both physical fitness and experience in snow shoveling are factors affecting snow shoveling performance.
Right : This study was designed to clarify the relationship between power required for snow shoveling and physical resources. The subjects were 258 male college freshmen, including 126 from snowy regions of Japan (S group) and 132 from non-snowy regions of Japan (NS group) . All subjects performed fitness tests, including tests of grip strength, back strength and leg extension power, and tests to determine maximal snow throwing distances using 5-kg and 10-kg shovel loads. Despite the fact that there were no significant differences between the two groups in mean values of height, weight, grip strength, back strength and leg extension power, the mean snow throwing distance in the S group was significantly greater than that in the NS group for both a 5-kg shovel load(6.5±1.3 m vs 5.9±1.1 m, p <0.01)and a 10-kg shovel load(4.2±0.77 m vs 3.9±0.76 m, p <0.01). Throwing distances of both 5-kg and 10-kg shovel loads were significantly correlated with physical stature and with fitness parameters. When the subjects in the S group were divided into subgroups according to frequency of performance of snow shoveling, it was found that the results for the subgroup of subjects who regularly did snow shoveling were better than those for the subgroup of subjects who rarely did snow shoveling and those for the NS group. The results indicated that both physical fitness and experience in snow shoveling are factors affecting snow shoveling performance.

抄録

本研究はショベリング除雪に必要な,パワーおよび身体資質の関係を明らかにすることを目的に行なった.258名の男子大学生が被検者となったが,その内訳は,積雪地出身者(SG)が126名で,非積雪地出身者(NSG)が132名であった.それぞれ握力,背筋力,脚伸展パワーの測定を行なったほか,5 kgと10 kgの負荷によるショベリング投擲を行なった.両グループの身長,体重,筋力および脚伸展パワーの平均値に有意な差が認められなかったにもかかわらず,投擲距離においてはSG群がNSG群を上回り,5 kg負荷時(6.5±1.3 m vs 5.9±1.1m)と10 kg負荷時(4.2±0.77 m vs 3.9±0.79m)で有意な差が認められた.投擲距離とそれぞれの測定項目との間に有意な相関関係が認められたほか,SG群を除雪の実施状況に応じたグループに分けて比較をしたところ,常習的に行なっていたグループが,ほとんどしないグループおよびNSG群を上回る結果が得られた.これらのことから,ショベリング除雪能力を規定する因子として,体力と技術の関与が示唆された.

責任著者(Corresponding author)

訂正情報

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