(mysql): SELECT * FROM sessions WHERE session_id = 'g4hkh1r2a26i5n42boeqchmds6'  

(mysql): SELECT * FROM journals WHERE path = 'majalahilmiahsultanagung'  

(mysql): SELECT * FROM site  

(mysql): SELECT v.* FROM versions v LEFT JOIN plugin_settings ps ON lower(v.product_class_name) = ps.plugin_name AND ps.setting_name = 'enabled' AND ((journal_id = '2') OR v.sitewide = 1) WHERE v.current = 1 AND (ps.setting_value = '1' OR v.lazy_load <> 1)  

(mysql): SELECT setting_name, setting_value, setting_type FROM plugin_settings WHERE plugin_name = 'objectsforreviewplugin' AND journal_id = '2'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'plugins.generic.usageStats.UsageStatsLoader'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'plugins.generic.pln.classes.tasks.Depositor'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'plugins.importexport.crossref.CrossrefInfoSender'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'plugins.importexport.crossref.CrossrefInfoSender'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'plugins.importexport.datacite.DataciteInfoSender'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'classes.tasks.ReviewReminder'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'classes.tasks.SubscriptionExpiryReminder'  

(mysql): SELECT last_run FROM scheduled_tasks WHERE class_name = 'classes.tasks.OpenAccessNotification'  

(mysql): SELECT pa.*, a.*, COALESCE(stl.setting_value, stpl.setting_value) AS section_title, COALESCE(sal.setting_value, sapl.setting_value) AS section_abbrev FROM published_articles pa INNER JOIN articles a ON pa.article_id = a.article_id LEFT JOIN sections s ON s.section_id = a.section_id LEFT JOIN section_settings stpl ON (s.section_id = stpl.section_id AND stpl.setting_name = 'title' AND stpl.locale = 'en_US') LEFT JOIN section_settings stl ON (s.section_id = stl.section_id AND stl.setting_name = 'title' AND stl.locale = 'en_US') LEFT JOIN section_settings sapl ON (s.section_id = sapl.section_id AND sapl.setting_name = 'abbrev' AND sapl.locale = 'en_US') LEFT JOIN section_settings sal ON (s.section_id = sal.section_id AND sal.setting_name = 'abbrev' AND sal.locale = 'en_US') INNER JOIN article_settings ast ON a.article_id = ast.article_id WHERE ast.setting_name = 'pub-id::publisher-id' AND ast.setting_value = '19' ORDER BY pa.issue_id, a.article_id  

(mysql): SELECT pa.*, a.*, COALESCE(stl.setting_value, stpl.setting_value) AS section_title, COALESCE(sal.setting_value, sapl.setting_value) AS section_abbrev FROM published_articles pa, articles a LEFT JOIN sections s ON s.section_id = a.section_id LEFT JOIN section_settings stpl ON (s.section_id = stpl.section_id AND stpl.setting_name = 'title' AND stpl.locale = 'en_US') LEFT JOIN section_settings stl ON (s.section_id = stl.section_id AND stl.setting_name = 'title' AND stl.locale = 'en_US') LEFT JOIN section_settings sapl ON (s.section_id = sapl.section_id AND sapl.setting_name = 'abbrev' AND sapl.locale = 'en_US') LEFT JOIN section_settings sal ON (s.section_id = sal.section_id AND sal.setting_name = 'abbrev' AND sal.locale = 'en_US') WHERE pa.article_id = a.article_id AND a.article_id = 19  

(mysql): SELECT g.*, a.file_name, a.original_file_name, a.file_stage, a.file_type, a.file_size, a.date_uploaded, a.date_modified FROM article_galleys g LEFT JOIN article_files a ON (g.file_id = a.file_id) WHERE g.article_id = 19 ORDER BY g.seq  

(mysql): SELECT * FROM article_galley_settings WHERE galley_id = '15'  

(mysql): SELECT * FROM article_settings WHERE article_id = '19'  

(mysql): SELECT s.*, a.file_name, a.original_file_name, a.file_type, a.file_size, a.date_uploaded, a.date_modified FROM article_supplementary_files s LEFT JOIN article_files a ON (s.file_id = a.file_id) WHERE s.article_id = 19 ORDER BY s.seq  

(mysql): SELECT i.* FROM issues i INNER JOIN issue_settings ist ON i.issue_id = ist.issue_id WHERE ist.setting_name = 'pub-id::publisher-id' AND ist.setting_value = '3' ORDER BY i.issue_id  

(mysql): SELECT i.* FROM issues i WHERE issue_id = 3  

(mysql): SELECT * FROM issue_settings WHERE issue_id = '3'  

(mysql): SELECT iss.subscription_id FROM institutional_subscriptions iss, subscriptions s, subscription_types st WHERE POSITION(UPPER(LPAD(iss.domain, LENGTH(iss.domain)+1, '.')) IN UPPER(LPAD('216.73.216.3', LENGTH('216.73.216.3')+1, '.'))) != 0 AND iss.domain != '' AND iss.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)  

(mysql): SELECT isip.subscription_id FROM institutional_subscription_ip isip, subscriptions s, subscription_types st WHERE ((isip.ip_end IS NOT NULL AND '3628718083' >= isip.ip_start AND '3628718083' <= isip.ip_end AND isip.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)) OR (isip.ip_end IS NULL AND '3628718083' = isip.ip_start AND isip.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)))  

(mysql): SELECT * FROM sections WHERE section_id = '2'  

(mysql): SELECT * FROM section_settings WHERE section_id = '2'  

(mysql): SELECT * FROM sections WHERE section_id = '2'  

(mysql): SELECT * FROM section_settings WHERE section_id = '2'  

(mysql): SELECT g.*, a.file_name, a.original_file_name, a.file_stage, a.file_type, a.file_size, a.date_uploaded, a.date_modified FROM article_galleys g LEFT JOIN article_files a ON (g.file_id = a.file_id) WHERE g.galley_id = 0 AND g.article_id = 19  

(mysql): SELECT pa.*, a.*, COALESCE(stl.setting_value, stpl.setting_value) AS section_title, COALESCE(sal.setting_value, sapl.setting_value) AS section_abbrev FROM published_articles pa INNER JOIN articles a ON pa.article_id = a.article_id LEFT JOIN sections s ON s.section_id = a.section_id LEFT JOIN section_settings stpl ON (s.section_id = stpl.section_id AND stpl.setting_name = 'title' AND stpl.locale = 'en_US') LEFT JOIN section_settings stl ON (s.section_id = stl.section_id AND stl.setting_name = 'title' AND stl.locale = 'en_US') LEFT JOIN section_settings sapl ON (s.section_id = sapl.section_id AND sapl.setting_name = 'abbrev' AND sapl.locale = 'en_US') LEFT JOIN section_settings sal ON (s.section_id = sal.section_id AND sal.setting_name = 'abbrev' AND sal.locale = 'en_US') INNER JOIN article_settings ast ON a.article_id = ast.article_id WHERE ast.setting_name = 'pub-id::publisher-id' AND ast.setting_value = '19' ORDER BY pa.issue_id, a.article_id  

(mysql): SELECT pa.*, a.*, COALESCE(stl.setting_value, stpl.setting_value) AS section_title, COALESCE(sal.setting_value, sapl.setting_value) AS section_abbrev FROM published_articles pa, articles a LEFT JOIN sections s ON s.section_id = a.section_id LEFT JOIN section_settings stpl ON (s.section_id = stpl.section_id AND stpl.setting_name = 'title' AND stpl.locale = 'en_US') LEFT JOIN section_settings stl ON (s.section_id = stl.section_id AND stl.setting_name = 'title' AND stl.locale = 'en_US') LEFT JOIN section_settings sapl ON (s.section_id = sapl.section_id AND sapl.setting_name = 'abbrev' AND sapl.locale = 'en_US') LEFT JOIN section_settings sal ON (s.section_id = sal.section_id AND sal.setting_name = 'abbrev' AND sal.locale = 'en_US') WHERE pa.article_id = a.article_id AND a.article_id = 19  

(mysql): SELECT g.*, a.file_name, a.original_file_name, a.file_stage, a.file_type, a.file_size, a.date_uploaded, a.date_modified FROM article_galleys g LEFT JOIN article_files a ON (g.file_id = a.file_id) WHERE g.article_id = 19 ORDER BY g.seq  

(mysql): SELECT * FROM article_galley_settings WHERE galley_id = '15'  

(mysql): SELECT * FROM article_settings WHERE article_id = '19'  

(mysql): SELECT s.*, a.file_name, a.original_file_name, a.file_type, a.file_size, a.date_uploaded, a.date_modified FROM article_supplementary_files s LEFT JOIN article_files a ON (s.file_id = a.file_id) WHERE s.article_id = 19 ORDER BY s.seq  

(mysql): SELECT iss.subscription_id FROM institutional_subscriptions iss, subscriptions s, subscription_types st WHERE POSITION(UPPER(LPAD(iss.domain, LENGTH(iss.domain)+1, '.')) IN UPPER(LPAD('216.73.216.3', LENGTH('216.73.216.3')+1, '.'))) != 0 AND iss.domain != '' AND iss.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)  

(mysql): SELECT isip.subscription_id FROM institutional_subscription_ip isip, subscriptions s, subscription_types st WHERE ((isip.ip_end IS NOT NULL AND '3628718083' >= isip.ip_start AND '3628718083' <= isip.ip_end AND isip.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)) OR (isip.ip_end IS NULL AND '3628718083' = isip.ip_start AND isip.subscription_id = s.subscription_id AND s.journal_id = '2' AND s.status = 1 AND s.type_id = st.type_id AND st.institutional = 1 AND ((st.non_expiring = 1) OR (st.non_expiring = 0 AND ('2025-09-17 09:30:16' >= s.date_start AND '2025-09-17 09:30:16' <= s.date_end))) AND (st.format = 1 OR st.format = 17)))  

(mysql): SELECT * FROM citations WHERE assoc_type = 257 AND assoc_id = 19 AND citation_state >= 0 AND citation_state <= 5 ORDER BY seq, citation_id  

(mysql): SELECT * FROM sections WHERE section_id = '2'  

(mysql): SELECT * FROM section_settings WHERE section_id = '2'  

(mysql): SELECT i.* FROM issues i WHERE journal_id = 2 AND current = 1  

(mysql): SELECT * FROM issue_settings WHERE issue_id = '223'  

(mysql): SELECT v.* FROM versions v LEFT JOIN plugin_settings ps ON lower(v.product_class_name) = ps.plugin_name AND ps.setting_name = 'enabled' AND ((journal_id = '2') OR v.sitewide = 1) WHERE v.current = 1 AND (ps.setting_value = '1' OR v.lazy_load <> 1)  

(mysql): select version()  
ojs2 has produced an error Message: WARNING: Cannot modify header information - headers already sent by (output started at /var/www/html/ojs/lib/pkp/lib/adodb/adodb.inc.php:377) In file: /var/www/html/ojs/lib/pkp/classes/template/PKPTemplateManager.inc.php At line: 340 Stacktrace: Server info: OS: Linux PHP Version: 5.6.32 Apache Version: Apache/2.4.29 (Unix) DB Driver: mysql DB server version: 5.7.44
ojs2 has produced an error Message: WARNING: Cannot modify header information - headers already sent by (output started at /var/www/html/ojs/lib/pkp/lib/adodb/adodb.inc.php:377) In file: /var/www/html/ojs/lib/pkp/classes/template/PKPTemplateManager.inc.php At line: 343 Stacktrace: Server info: OS: Linux PHP Version: 5.6.32 Apache Version: Apache/2.4.29 (Unix) DB Driver: mysql DB server version: 5.7.44
ANALISA MANUAL MATERIAL HANDLING (MMH) DENGAN MENGGUNAKAN METODE BIOMEKANIKA UNTUK MENGIDENTIFIKASI RESIKO CIDERA TULANG BELAKANG (MUSCULOSKELETAL DISORDER) (Studi Kasus pada Buruh Pengangkat Beras di Pasar Jebor Demak) | <hr /> (mysql): SELECT * FROM authors WHERE submission_id = 19 ORDER BY seq   <hr /> <hr /> (mysql): SELECT * FROM author_settings WHERE author_id = '21'   <hr /> <hr /> (mysql): SELECT * FROM author_settings WHERE author_id = '22'   <hr /> <hr /> (mysql): SELECT * FROM author_settings WHERE author_id = '23'   <hr /> Mas’idah | Majalah Ilmiah Sultan Agung
(mysql): SELECT * FROM authors WHERE submission_id = 19 ORDER BY seq  

(mysql): SELECT * FROM author_settings WHERE author_id = '21'  

(mysql): SELECT * FROM author_settings WHERE author_id = '22'  

(mysql): SELECT * FROM author_settings WHERE author_id = '23'  

(mysql): SELECT * FROM authors WHERE submission_id = 19 ORDER BY seq  

(mysql): SELECT * FROM author_settings WHERE author_id = '21'  

(mysql): SELECT * FROM author_settings WHERE author_id = '22'  

(mysql): SELECT * FROM author_settings WHERE author_id = '23'  

ANALISA MANUAL MATERIAL HANDLING (MMH) DENGAN MENGGUNAKAN METODE BIOMEKANIKA UNTUK MENGIDENTIFIKASI RESIKO CIDERA TULANG BELAKANG (MUSCULOSKELETAL DISORDER) (Studi Kasus pada Buruh Pengangkat Beras di Pasar Jebor Demak)


(mysql): SELECT * FROM authors WHERE submission_id = 19 ORDER BY seq  

(mysql): SELECT * FROM author_settings WHERE author_id = '21'  

(mysql): SELECT * FROM author_settings WHERE author_id = '22'  

(mysql): SELECT * FROM author_settings WHERE author_id = '23'  
Eli Mas’idah, Wiwiek Fatmawati, Lazib Ajibta

Abstract


Kerja atau aktivitas merupakan salah satu kegiatan manusia yang tidak dapat dihindarkan lagi. Salah satu aktivitas tersebut adalah pemindahan barang, proses pemindahan barang terjadi baik diperusahaan maupun pekerja yang berada diluar perusahaan sebagaimana yang terjadi dipasar – pasar tradisional. Aktivitas pemindahan yang terjadi dipasar – pasar tradisional biasanya terjadi secara manual.

Aktifitas pengangkatan secara membungkuk yang disebabkan adanya pembebanan yang terlalu berat menyebabkan cedera tulang belakang (musculoskeletal disorder) dan gangguan otot lainnya. Selain itu aktifitas pemindahan barang juga perlu diperhatikan guna meningkatkan kesehatan dan keselamatan kerja.

Pada hasil penelitian nilai lifting indeks (LI) dengan massa beban 75 kg pada kondisi awal nilai LI rata-rata adalah 5,52, nilai tersebut sangat ekstrim dan sangat beresiko menyebabkan cedera tulang belakang. Setelah dilakukan perbaikan sistem kerja pada nilai LI rata-rata  diperoleh 2,8,  nilai LI setelah perbaikan masih dalam batas toleransi. Nilai konsumsi energi kondisi awal rata-rata  adalah  2,31. Hal ini menunjukkan konsumsi energi oleh para pekerja termasuk kategori beban kerja yang sangat berat. Setelah perbaikan sistem kerja konsumsi energi oleh pekerja angkat tersebut menjadi menurun yaitu 1,16, hal ini menunjukkan pekerjaan tersebut dalam kategori beban kerja sedang dan pekerja tersebut tidak cepat mengalami kelelahan. Berdasarkan perhitungan momen gaya pada kondisi awal rata-rata adalah 12.139,35. Hal ini akan membuat sakit pada tulang belakang sehingga dalam waktu tertentu tubuh akan berubah menjadi membungkuk, Setelah dilakukan perbaikan sistem kerja momen gaya rata-rata 9.183, hal ini menunjukkan resiko cidera tulang belakang (musculoskeletal disorder) dapat diminimumkan, namun nilai tersebut masih melebihi batas rekomendasi dari NIOSH yaitu sebesar 6500 Newton.

 

Kata kunci : LI (Lifting Index), Manual Material Handling (MMH), Musculoskeletal disorder, RWL (Recommended Weight Limit).

Full Text:

PDF

(mysql): SELECT r.* FROM referrals r WHERE r.article_id = 19 AND r.status = 2  

Refbacks

  • There are currently no refbacks.

(mysql): UPDATE sessions SET user_id = NULL, ip_address = '216.73.216.3', user_agent = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)', created = 1758101406, last_used = 1758101411, remember = 0, data = '', domain = 'jurnal.unissula.ac.id' WHERE session_id = 'g4hkh1r2a26i5n42boeqchmds6'