Kh\u00e1i ni\u1ec7m v\u1ec1 k\u00e8o rung<\/figcaption><\/figure>\nK\u00e8o rung,<\/strong> hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Running Ball, l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c c\u00e1 c\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn trong b\u00f3ng \u0111\u00e1, \u0111\u1eb7c tr\u01b0ng b\u1edfi vi\u1ec7c \u0111\u1eb7t c\u01b0\u1ee3c khi tr\u1eadn \u0111\u1ea5u \u0111ang di\u1ec5n ra. Th\u1ebf n\u00ean, k\u00e8o n\u00e0y ch\u1ec9 c\u00f3 gi\u00e1 tr\u1ecb trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh v\u00e0 kh\u00f4ng xu\u1ea5t hi\u1ec7n su\u1ed1t c\u1ea3 tr\u1eadn \u0111\u1ea5u. \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c n\u1ebfu kh\u00f4ng \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n k\u1ecbp th\u1eddi, ng\u01b0\u1eddi ch\u01a1i r\u1ea5t d\u1ec5 b\u1ecf l\u1ee1 c\u01a1 h\u1ed9i.<\/p>\n\u0110i\u1ec3m h\u1ea5p d\u1eabn c\u1ee7a k\u00e8o rung n\u1eb1m \u1edf t\u00ednh linh ho\u1ea1t c\u1ee7a n\u00f3 trong su\u1ed1t tr\u1eadn \u0111\u1ea5u. Ng\u01b0\u1eddi ch\u01a1i kh\u00f4ng c\u1ea7n \u0111\u1eb7t c\u01b0\u1ee3c tr\u01b0\u1edbc khi tr\u1eadn \u0111\u1ea5u b\u1eaft \u0111\u1ea7u nh\u01b0 c\u00e1c lo\u1ea1i k\u00e8o kh\u00e1c nh\u01b0 k\u00e8o t\u00e0i x\u1ec9u, ch\u00e2u \u00c1 hay ch\u00e2u \u00c2u. M\u1ed9t c\u00e2u \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 mi\u00eau t\u1ea3 \u0111\u00fang b\u1ea3n ch\u1ea5t c\u1ee7a k\u00e8o rung l\u00e0 “B\u00f3ng c\u00f2n l\u0103n th\u00ec ta c\u00f2n rung”.<\/p>\n
<\/span>C\u00e1ch th\u1ee9c \u0111\u00e1nh k\u00e8o rung\u00a0<\/strong><\/span><\/h2>\n\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 k\u00e8o Running Ball, tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u1ea7n nh\u1eadn th\u1ee9c r\u1eb1ng \u0111\u1eb7t k\u00e8o t\u00e0i x\u1ec9u tr\u01b0\u1edbc khi tr\u1eadn \u0111\u1ea5u b\u1eaft \u0111\u1ea7u v\u00e0 khi tr\u1eadn \u0111\u1ea5u \u0111ang di\u1ec5n ra l\u00e0 hai kh\u00e1i ni\u1ec7m ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t.<\/p>\n
H\u00e3y xem m\u1ed9t v\u00ed d\u1ee5<\/strong>: Tr\u1eadn \u0111\u1ea5u hi\u1ec7n t\u1ea1i \u0111ang c\u00f3 t\u1ef7 s\u1ed1 0-1. K\u00e8o t\u00e0i x\u1ec9u c\u00f3 t\u1ef7 l\u1ec7 1.5, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0:<\/p>\n\n- N\u1ebfu b\u1ea1n \u0111\u1eb7t k\u00e8o t\u00e0i:<\/strong> B\u1ea1n ch\u1ec9 th\u1eafng khi c\u00f3 \u00edt nh\u1ea5t 2 b\u00e0n th\u1eafng \u0111\u01b0\u1ee3c ghi.<\/li>\n
- N\u1ebfu b\u1ea1n \u0111\u1eb7t k\u00e8o x\u1ec9u:<\/strong> B\u1ea1n ch\u1ec9 th\u1eafng khi c\u00f3 1 b\u00e0n th\u1eafng ho\u1eb7c kh\u00f4ng c\u00f3 b\u00e0n th\u1eafng n\u00e0o. N\u1ebfu c\u00f3 2 b\u00e0n tr\u1edf l\u00ean \u0111\u01b0\u1ee3c ghi, b\u1ea1n s\u1ebd thua c\u01b0\u1ee3c.<\/li>\n<\/ul>\n
\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 b\u1ea1n ch\u1ec9 c\u1ea7n quan t\u00e2m \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m b\u1ea1n \u0111\u1eb7t c\u01b0\u1ee3c, ch\u1ee9 kh\u00f4ng c\u1ea7n bi\u1ebft v\u1ec1 s\u1ed1 b\u00e0n th\u1eafng ho\u1eb7c k\u1ebft qu\u1ea3 tr\u1eadn \u0111\u1ea5u tr\u01b0\u1edbc \u0111\u00f3. Khi b\u1ea1n \u0111\u1eb7t c\u01b0\u1ee3c, k\u00e8o m\u1edbi th\u1ef1c s\u1ef1 b\u1eaft \u0111\u1ea7u. Nh\u1eefng di\u1ec5n bi\u1ebfn tr\u01b0\u1edbc \u0111\u00f3, bao g\u1ed3m c\u00e1c b\u00e0n th\u1eafng hay thua, tr\u1edf n\u00ean v\u00f4 ngh\u0129a v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00e8o c\u01b0\u1ee3c c\u1ee7a b\u1ea1n.<\/p>\n
<\/span>Th\u1eddi gian di\u1ec5n ra k\u00e8o rung trong tr\u1eadn b\u00f3ng \u0111\u00e1<\/strong><\/span><\/h2>\n