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Arita N1, Shinoda S2, Mangyo R3, Watanabe A4, Iwai K5
1Tsukuba International University, Physical Therapy, Tsuchiura, Japan, 2Ichihara Hospital, Rehabilitation, Tsukuba, Japan, 3Mejiro University, Physical Therapy, Saitama, Japan, 4Ichihara Hospital, Orthopaedic Surgery, Tsukuba, Japan, 5Ibaraki Prefectural University, Humanities and Sciences, Ami, Japan
Background: Intrinsic exercise reward strongly affects adherence to exercise. Daily life activities that provide intrinsic rewards for walking, standing, and stair climbing are necessary for elderly people, who must maintain and enhance health. Nevertheless, physical activity amounts necessary to acquire intrinsic exercise rewards remain unclear. Ascertaining physical activity amounts for intrinsic reward acquisition can lead to individual evaluation and setting durations of appropriate intervention.
Purpose: This study was conducted to clarify a level of physical activity that increased intrinsic exercise rewards.
Methods: We analyzed the cohort data for elderly people with no exercise habits from prospective study. We conducted home exercise (1. walking (3 Mets), 2. stair climbing (4 Mets), 3. resistance training (3.5 Mets)) to 23 elderly people (Mean72±7.2) for 3 months. The exercise intensity was somewhat difficult for them. Then they checked the home exercise duration (min) recorded on self-monitoring sheets everyday. The physical activity amount (Mets h) was calculated based on the home exercise duration. Furthermore, the cumulative amount of physical activity for 3 months was determined. We checked the degree of intrinsic exercise reward for daily life scenes using an 11-point Likert scale. We calculated the total score of 3 items (full score=30) and defined as intrinsic exercise rewards.
Results: The physical activity amount providing an intrinsic exercise reward was 180 Mets h/ 3 months. The discrimination ratio was 60.9%. For a group doing greater amount of physical activity and a group doing less, we used ANOVA to determine differences in intrinsic exercise rewards. Results show main effects of time and group. Effect sizes were large: partial η2=0.376, partial η2=0.183. However, no interaction was observed.
Conclusion(s): Results demonstrate that a 180 Mets h cumulative amount of physical activity for 3 months will provide an intrinsic exercise reward. Therefore, acquiring the intrinsic exercise reward requires monthly achievement of 60 Mets h.
Implications: By ascertaining the physical activity amount that increases the intrinsic exercise reward, people can set a sufficient intervention period to acquire that amount.
Keywords: Accumulation physical activity, discriminant analysis, intrinsic exercise reward
Funding acknowledgements: The first author has not conflict of interest to be disclosed on this subject.
Purpose: This study was conducted to clarify a level of physical activity that increased intrinsic exercise rewards.
Methods: We analyzed the cohort data for elderly people with no exercise habits from prospective study. We conducted home exercise (1. walking (3 Mets), 2. stair climbing (4 Mets), 3. resistance training (3.5 Mets)) to 23 elderly people (Mean72±7.2) for 3 months. The exercise intensity was somewhat difficult for them. Then they checked the home exercise duration (min) recorded on self-monitoring sheets everyday. The physical activity amount (Mets h) was calculated based on the home exercise duration. Furthermore, the cumulative amount of physical activity for 3 months was determined. We checked the degree of intrinsic exercise reward for daily life scenes using an 11-point Likert scale. We calculated the total score of 3 items (full score=30) and defined as intrinsic exercise rewards.
Results: The physical activity amount providing an intrinsic exercise reward was 180 Mets h/ 3 months. The discrimination ratio was 60.9%. For a group doing greater amount of physical activity and a group doing less, we used ANOVA to determine differences in intrinsic exercise rewards. Results show main effects of time and group. Effect sizes were large: partial η2=0.376, partial η2=0.183. However, no interaction was observed.
Conclusion(s): Results demonstrate that a 180 Mets h cumulative amount of physical activity for 3 months will provide an intrinsic exercise reward. Therefore, acquiring the intrinsic exercise reward requires monthly achievement of 60 Mets h.
Implications: By ascertaining the physical activity amount that increases the intrinsic exercise reward, people can set a sufficient intervention period to acquire that amount.
Keywords: Accumulation physical activity, discriminant analysis, intrinsic exercise reward
Funding acknowledgements: The first author has not conflict of interest to be disclosed on this subject.
Topic: Health promotion & wellbeing/healthy ageing; Older people; Non-communicable diseases (NCDs) & risk factors
Ethics approval required: Yes
Institution: Tsukuba International University
Ethics committee: Tsukuba International University Ethics Committee
Ethics number: No.29-31
All authors, affiliations and abstracts have been published as submitted.
