scholarly journals Effect of Eight Weeks of Aerobic Interval Training on the Serum Concentrations of Alkaline Phosphatase, Osteocalcin and Parathyroid Hormone in Middle-aged Men

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Mohsen Bakhtiyari ◽  
Mehrdad Fathei ◽  
Keyvan Hejazi

Background: Osteoporosis is the most common disorder of bone and mineral metabolism. This disease is associated with decreased bone density and loss of bone microstructure, leading to increased fragility and risk of bone fractures. Objectives: The aim of this study was to evaluate the effect of eight weeks of aerobic interval training on the serum concentrations of alkaline phosphatase, osteocalcin, and parathyroid hormone in middle-aged men. Methods: This was a quasi-experimental study of 24 men, who were divided into two groups of control (n = 12) and aerobic interval training (n = 12). Training performed during eight weeks, three times a week, each session for 45 to 60 minutes. Blood samples were analyzed for the concentrations of calcium, phosphorus, alkaline phosphatase, osteocalcin, and parathyroid hormone before and after completion of the training program. Paired samples t-test and analysis of covariance (ANCOVA) were run to analyze the data (P ≤ 0.05). Results: Weight and body mass index decreased significantly, and the maximum oxygen consumption at the end of the training program increased significantly in the experimental group. Eight weeks of aerobic exercise led to a significant increase in the amounts of calcium (P = 0.001), phosphorus (P = 0.001), alkaline phosphatase (P = 0.001), osteocalcin (P = 0.001), and parathyroid hormone (P = 0.001) in the experimental group. Conclusions: It can be stated that eight weeks of aerobic interval training may be effective in preventing osteoporosis by reducing body composition indices and increasing calcium, phosphorus, alkaline phosphatase, osteocalcin, and serum parathyroid hormone in inactive men.

2016 ◽  
Vol 9 (6) ◽  
pp. 150 ◽  
Author(s):  
Ayed H. Ziadat ◽  
Mohammad T. Al Ziyadat

<p class="apa">The main purpose of this study was to determine the effectiveness of a training program based on the six hats model in developing creative thinking skills and academic achievements in the Arabic language for gifted and talented Jordanian students.</p><p class="apa">The study sample consisted of 59 gifted male and female students of the 7<sup>th</sup> grade from King Abdullah II Elite School at the Directorate of Education in Salt City, Jordan. The sample was carefully chosen from students enrolled in the academic year 2014 and were divided randomly into two groups: an experimental group of 27 male and female students and a controlling group of 32 male and female students.</p><p class="apa">For the purpose of this study, a training program was developed based on the Six Hats Model that tackled chapter 11 and 12 of the Arabic language syllabus of the seventh grade. Both groups had been given Torrance’s B Test for creative thinking that the authors of this research developed for the Arabic Test to the gifted and talented students with the required factors of reliability and consistency. Statistical tools and analysis on obtained data were applied including the analysis of Covariance (ANCOVA).</p><p class="apa">The outcome of this research showed discrepancies of statistical significance (α =&lt; 0.05) among the skills and measurements of the achievement test in favor of the experimental group. In view of the outcomes of this study, the authors strongly recommend that teachers and educators should be rehabilitated and trained to use and apply the latest educational methods and techniques such as: Alcort program, creative solutions of problems and obstacles, critical thinking, brainstorming, and to refrain from the conventional old methods used which commonly focuses on information storage and retaining crammed data, regardless of the active participation of students.</p>


1993 ◽  
Vol 16 (10) ◽  
pp. 704-710 ◽  
Author(s):  
P.L. Bedani ◽  
C. Orzincolo ◽  
A. Storari ◽  
L. Perini ◽  
S. Soffritti ◽  
...  

Fifteen patients on regular dialytic treatment for more than 15 years were given X-rays of the skull, spine, shoulders, wrists, pelvis and knees with the purpose of studying the principal skeletal and articular alterations due or not due to the uraemic status. Serum calcium, phosphorus, parathyroid hormone, alkaline phosphatase and basal aluminium were recorded. Osteopenia was evident in all the patients. Ten of whom (67%) showed alterations due to hyperparathyroidism. Nine patients presented the marks of dialysis spondyloarthropathy; in 14/15 cases geodes were present in the wrists, humeral heads or hip-joints; in ten patients there were multiple amyloid lesions. Two patients with serum basal aluminum above 100 μg/L showed the typical radiographic marks of osteomalacia. The majority of the long-term survivors showed multifactorial osteo-articular alterations resulting mainly from the combination of hyperparathyroidism and dialysis-related amyloidosis. The less frequent joint alterations were represented by arthrosis, enthesopathy and Chondrocalcinosis. Disability and decreased articular mobility resulted in being mainly due to amyloid osteo-arthropathy.


1995 ◽  
Vol 20 (4) ◽  
pp. 452-464 ◽  
Author(s):  
Milena C. Gaiga ◽  
David Docherty

The effects of a 9-week aerobic interval training program on anaerobic intermittent performance were investigated. Intermittent work consisted of four repeat 30-sec maximal efforts on a cycle ergometer (Wingate test) with 3-min recovery intervals. Thirteen men trained 3 days a week on the cycle ergometer, completing 3-min work-to-rest intervals and progressing from 5 to 10 reps. Relative and absolute values of aerobic power increased significantly for the training group (p <.05). No significant change was observed for the control group (n = 11). The training group demonstrated significant increases in the four anaerobic variables of short-term peak power (SPP), short-term anaerobic capacity (SAC), intermediate-term peak power (IPP), and total work (TW), and across the four 30-sec maximal repeats for anaerobic performance (T1-T4) (p <.05). Greater percentages of increase occurred for IPP and TW, especially during Repeats 3 and 4. The control group only demonstrated a significant increase in SPP for Repeat 3. These data suggest that the type of interval training program used in the study increased aerobic power and also enhanced performance in repeated high intensity, short duration work. Key words: short-term peak power, intermediate-term peak power, total work


Author(s):  
Paulina Hebisz ◽  
Rafał Hebisz

This study was undertaken to investigate the effect of two different concepts in a training program on muscle thickness and anaerobic power in trained cyclists. Twenty-six mountain bike cyclists participated in the study and were divided into an experimental group (E), which performed polarized training, comprising sprint interval training (SIT), high-intensity interval training (HIIT), and endurance training (ET), and a control group (C), which performed HIIT and ET. The experiment was conducted over the course of 9 weeks. Laboratory tests were performed immediately before and after the conducted experiment, including an ultrasound measurement of the quadriceps femoris muscle thickness and a sprint interval testing protocol (SITP). During the SITP, the cyclists performed 4 maximal repetitions, 30 s each, with a 90-s rest period between the repetitions. SITP was performed to measure maximal and mean anaerobic power. As a result of the applied training program, the muscle thickness decreased and the mean anaerobic power increased in the experimental group. By contrast, no significant changes were observed in the control group. In conclusion, a decrease in muscle thickness with a concomitant increase in mean anaerobic power resulting from the polarized training program is beneficial in mountain bike cycling.


1977 ◽  
Vol 9 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Hal W. Seaton

This investigation attempted to determine the effects of visual perception training on beginning first grade reading achievement with children diagnosed as being deficient in visual perceptual skills and potential future reading problems. Further, the study sought to determine if such training would have a greater effect on the reading achievement of females than males, as well as of children at several levels of measured intelligence. Three groups were selected for the study. The experimental group received visual perception training while the control groups received traditional first grade instruction. The groups were compared through analysis of covariance on the Metropolitan Achievement Tests. The results showed no significant differences and suggest that visual perception training for all children must be seriously questioned.


2005 ◽  
Vol 123 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Carlos Perez Gomes ◽  
Maria Inês Barreto Silva ◽  
Maria Eugênia Leite Duarte ◽  
David Dorigo ◽  
Carla Cavalheiro da Silva Lemos ◽  
...  

CONTEXT AND OBJECTIVE: Few studies have focused on bone disease in patients with chronic kidney disease under conservative treatment. The objective was to evaluate bone disease in patients with chronic kidney disease. DESIGN AND SETTING: Case series, at the Nephrology Division, Hospital Universitário Pedro Ernesto. METHODS: 131 patients with creatinine clearance from 10 to 60 ml/min/1.73 m² were followed up for at least one year. Serum creatinine, albumin, calcium, phosphorus, alkaline phosphatase, total CO2 (tCO2), intact parathyroid hormone (iPTH), and alkaline phosphatase were measured. Creatinine clearance was calculated from 24-hour urine creatinine measurements and protein ingestion estimates from urea assays. RESULTS: Patients presenting creatinine clearance < 30 ml/min/1.73 m² had higher iPTH values, but normal serum levels for calcium, phosphorus, alkaline phosphatase and tCO2. Patients presenting iPTH values of twice the normal upper limit (144 pg/ml) showed lower tCO2 values. Bone alkaline phosphatase was evaluated in 37 patients with creatinine clearance < 30 ml/min/1.73 m², showing correlation with alkaline phosphatase but not with parathyroid hormone. Bone biopsy on nine patients with creatinine clearance < 30 ml/min/1.73 m² and iPTH > 144 pg/ml showed osteitis fibrosa (4), mild lesion (4) and high turnover (1). CONCLUSION: The present data suggest the importance of early control for iPTH and metabolic acidosis, among patients under conservative management for chronic kidney disease, in order to prevent complications related to bone disease.


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