diff --git a/backend/controllers/memberActivityController.js b/backend/controllers/memberActivityController.js
new file mode 100644
index 0000000..337a9d0
--- /dev/null
+++ b/backend/controllers/memberActivityController.js
@@ -0,0 +1,120 @@
+import { checkAccess } from '../utils/userUtils.js';
+import DiaryMemberActivity from '../models/DiaryMemberActivity.js';
+import DiaryDateActivity from '../models/DiaryDateActivity.js';
+import DiaryDates from '../models/DiaryDates.js';
+import Participant from '../models/Participant.js';
+import PredefinedActivity from '../models/PredefinedActivity.js';
+import { Op } from 'sequelize';
+
+export const getMemberActivities = async (req, res) => {
+    try {
+        const { authcode: userToken } = req.headers;
+        const { clubId, memberId } = req.params;
+        const { period } = req.query; // 'month', '3months', '6months', 'year', 'all'
+        
+        await checkAccess(userToken, clubId);
+        
+        // Calculate date range based on period
+        const now = new Date();
+        let startDate = null;
+        
+        switch (period) {
+            case 'month':
+                startDate = new Date(now.getFullYear(), now.getMonth() - 1, now.getDate());
+                break;
+            case '3months':
+                startDate = new Date(now.getFullYear(), now.getMonth() - 3, now.getDate());
+                break;
+            case '6months':
+                startDate = new Date(now.getFullYear(), now.getMonth() - 6, now.getDate());
+                break;
+            case 'year':
+                startDate = new Date(now.getFullYear() - 1, now.getMonth(), now.getDate());
+                break;
+            case 'all':
+            default:
+                startDate = null;
+                break;
+        }
+        
+        // Get participant ID for this member
+        const participants = await Participant.findAll({
+            where: { memberId: memberId }
+        });
+        
+        if (participants.length === 0) {
+            return res.status(200).json([]);
+        }
+        
+        const participantIds = participants.map(p => p.id);
+        
+        // Get all diary member activities for this member
+        const whereClause = {
+            participantId: participantIds
+        };
+        
+        const memberActivities = await DiaryMemberActivity.findAll({
+            where: whereClause,
+            include: [
+                {
+                    model: DiaryDateActivity,
+                    as: 'activity',
+                    include: [
+                        {
+                            model: DiaryDates,
+                            as: 'diaryDate',
+                            where: startDate ? {
+                                date: {
+                                    [Op.gte]: startDate
+                                }
+                            } : {}
+                        },
+                        {
+                            model: PredefinedActivity,
+                            as: 'predefinedActivity'
+                        }
+                    ]
+                }
+            ],
+            order: [[{ model: DiaryDateActivity, as: 'activity' }, { model: DiaryDates, as: 'diaryDate' }, 'date', 'DESC']]
+        });
+        
+        // Group activities by name and count occurrences
+        const activityMap = new Map();
+        
+        for (const ma of memberActivities) {
+            if (!ma.activity || !ma.activity.predefinedActivity) {
+                continue;
+            }
+            
+            const activity = ma.activity.predefinedActivity;
+            const activityName = activity.name;
+            const date = ma.activity.diaryDate?.date;
+            
+            if (!activityMap.has(activityName)) {
+                activityMap.set(activityName, {
+                    name: activityName,
+                    count: 0,
+                    dates: []
+                });
+            }
+            
+            const activityData = activityMap.get(activityName);
+            activityData.count++;
+            if (date) {
+                activityData.dates.push(date);
+            }
+        }
+        
+        // Convert map to array and sort by count
+        const activities = Array.from(activityMap.values())
+            .sort((a, b) => b.count - a.count);
+        
+        return res.status(200).json(activities);
+        
+    } catch (error) {
+        console.error('Error fetching member activities:', error);
+        return res.status(500).json({ error: 'Failed to fetch member activities' });
+    }
+};
+
diff --git a/backend/routes/memberActivityRoutes.js b/backend/routes/memberActivityRoutes.js
new file mode 100644
index 0000000..23355fb
--- /dev/null
+++ b/backend/routes/memberActivityRoutes.js
@@ -0,0 +1,12 @@
+import express from 'express';
+import { authenticate } from '../middleware/authMiddleware.js';
+import { getMemberActivities } from '../controllers/memberActivityController.js';
+
+const router = express.Router();
+
+router.use(authenticate);
+
+router.get('/:clubId/:memberId', getMemberActivities);
+
+export default router;
+
diff --git a/backend/server.js b/backend/server.js
index ce58807..67d8805 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -38,6 +38,7 @@ import teamRoutes from './routes/teamRoutes.js';
 import clubTeamRoutes from './routes/clubTeamRoutes.js';
 import teamDocumentRoutes from './routes/teamDocumentRoutes.js';
 import seasonRoutes from './routes/seasonRoutes.js';
+import memberActivityRoutes from './routes/memberActivityRoutes.js';
 import schedulerService from './services/schedulerService.js';
 
 const app = express();
@@ -88,6 +89,7 @@ app.use('/api/teams', teamRoutes);
 app.use('/api/club-teams', clubTeamRoutes);
 app.use('/api/team-documents', teamDocumentRoutes);
 app.use('/api/seasons', seasonRoutes);
+app.use('/api/member-activities', memberActivityRoutes);
 
 app.use(express.static(path.join(__dirname, '../frontend/dist')));
 
diff --git a/frontend/src/components/MemberActivitiesDialog.vue b/frontend/src/components/MemberActivitiesDialog.vue
new file mode 100644
index 0000000..9881c2c
--- /dev/null
+++ b/frontend/src/components/MemberActivitiesDialog.vue
@@ -0,0 +1,318 @@
+<template>
+    <BaseDialog
+        v-model="isOpen"
+        :title="`Übungen von ${memberName}`"
+        @close="closeDialog"
+        :width="800"
+    >
+        <div class="activities-content">
+            <!-- Period Selection -->
+            <div class="period-selector">
+                <label>Zeitraum:</label>
+                <select v-model="selectedPeriod" @change="loadActivities">
+                    <option value="month">Letzte 4 Wochen</option>
+                    <option value="3months">Letzte 3 Monate</option>
+                    <option value="6months">Letztes halbes Jahr</option>
+                    <option value="year">Letztes Jahr</option>
+                    <option value="all">Alle</option>
+                </select>
+            </div>
+
+            <!-- Loading State -->
+            <div v-if="loading" class="loading">
+                Lade Übungen...
+            </div>
+
+            <!-- No Activities -->
+            <div v-else-if="activities.length === 0" class="no-activities">
+                Keine Übungen im gewählten Zeitraum gefunden.
+            </div>
+
+            <!-- Activities List -->
+            <div v-else class="activities-list">
+                <table class="activities-table">
+                    <thead>
+                        <tr>
+                            <th>Übung</th>
+                            <th>Häufigkeit</th>
+                            <th>Daten</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        <tr v-for="activity in activities" :key="activity.name">
+                            <td class="activity-name">{{ activity.name }}</td>
+                            <td class="activity-count">{{ activity.count }}x</td>
+                            <td class="activity-dates">
+                                <div class="dates-container">
+                                    <span
+                                        v-for="(date, index) in activity.dates.slice(0, showAllDates[activity.name] ? undefined : 5)"
+                                        :key="index"
+                                        class="date-badge"
+                                    >
+                                        {{ formatDate(date) }}
+                                    </span>
+                                    <button
+                                        v-if="activity.dates.length > 5 && !showAllDates[activity.name]"
+                                        @click="toggleShowAllDates(activity.name)"
+                                        class="show-more-btn"
+                                    >
+                                        +{{ activity.dates.length - 5 }} weitere
+                                    </button>
+                                    <button
+                                        v-if="activity.dates.length > 5 && showAllDates[activity.name]"
+                                        @click="toggleShowAllDates(activity.name)"
+                                        class="show-less-btn"
+                                    >
+                                        weniger anzeigen
+                                    </button>
+                                </div>
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+        </div>
+
+        <template #footer>
+            <button @click="closeDialog" class="btn-close">Schließen</button>
+        </template>
+    </BaseDialog>
+</template>
+
+<script>
+import { ref, computed, watch } from 'vue';
+import BaseDialog from './BaseDialog.vue';
+import apiClient from '../apiClient.js';
+
+export default {
+    name: 'MemberActivitiesDialog',
+    components: {
+        BaseDialog
+    },
+    props: {
+        modelValue: {
+            type: Boolean,
+            default: false
+        },
+        member: {
+            type: Object,
+            default: null
+        },
+        clubId: {
+            type: [String, Number],
+            required: true
+        }
+    },
+    emits: ['update:modelValue'],
+    setup(props, { emit }) {
+        const isOpen = computed({
+            get: () => props.modelValue,
+            set: (value) => emit('update:modelValue', value)
+        });
+
+        const memberName = computed(() => {
+            if (!props.member) return '';
+            return `${props.member.firstName} ${props.member.lastName}`;
+        });
+
+        const selectedPeriod = ref('6months');
+        const loading = ref(false);
+        const activities = ref([]);
+        const showAllDates = ref({});
+
+        const loadActivities = async () => {
+            if (!props.member) return;
+
+            loading.value = true;
+            try {
+                const response = await apiClient.get(
+                    `/member-activities/${props.clubId}/${props.member.id}`,
+                    {
+                        params: {
+                            period: selectedPeriod.value
+                        }
+                    }
+                );
+                activities.value = response.data;
+                // Reset showAllDates
+                showAllDates.value = {};
+            } catch (error) {
+                console.error('Error loading member activities:', error);
+                activities.value = [];
+            } finally {
+                loading.value = false;
+            }
+        };
+
+        const formatDate = (dateString) => {
+            if (!dateString) return '';
+            const date = new Date(dateString);
+            const day = String(date.getDate()).padStart(2, '0');
+            const month = String(date.getMonth() + 1).padStart(2, '0');
+            const year = date.getFullYear();
+            return `${day}.${month}.${year}`;
+        };
+
+        const toggleShowAllDates = (activityName) => {
+            showAllDates.value[activityName] = !showAllDates.value[activityName];
+        };
+
+        const closeDialog = () => {
+            isOpen.value = false;
+        };
+
+        // Watch for dialog open to load activities
+        watch(() => props.modelValue, (newValue) => {
+            if (newValue && props.member) {
+                loadActivities();
+            }
+        });
+
+        return {
+            isOpen,
+            memberName,
+            selectedPeriod,
+            loading,
+            activities,
+            showAllDates,
+            loadActivities,
+            formatDate,
+            toggleShowAllDates,
+            closeDialog
+        };
+    }
+};
+</script>
+
+<style scoped>
+.activities-content {
+    padding: 1rem;
+}
+
+.period-selector {
+    display: flex;
+    align-items: center;
+    gap: 1rem;
+    margin-bottom: 1.5rem;
+}
+
+.period-selector label {
+    font-weight: 600;
+    color: var(--text-color, #2c3e50);
+}
+
+.period-selector select {
+    padding: 0.5rem 1rem;
+    border: 1px solid var(--border-color, #ddd);
+    border-radius: 4px;
+    font-size: 1rem;
+    background: white;
+    cursor: pointer;
+}
+
+.loading {
+    text-align: center;
+    padding: 2rem;
+    color: var(--text-secondary, #666);
+    font-style: italic;
+}
+
+.no-activities {
+    text-align: center;
+    padding: 2rem;
+    color: var(--text-secondary, #666);
+    font-style: italic;
+}
+
+.activities-table {
+    width: 100%;
+    border-collapse: collapse;
+}
+
+.activities-table thead th {
+    background-color: var(--header-bg, #f5f5f5);
+    padding: 0.75rem;
+    text-align: left;
+    font-weight: 600;
+    border-bottom: 2px solid var(--border-color, #ddd);
+}
+
+.activities-table tbody tr {
+    border-bottom: 1px solid var(--border-color, #eee);
+}
+
+.activities-table tbody tr:hover {
+    background-color: var(--row-hover, #f9f9f9);
+}
+
+.activities-table td {
+    padding: 0.75rem;
+    vertical-align: top;
+}
+
+.activity-name {
+    font-weight: 500;
+    color: var(--primary-color, #2c3e50);
+}
+
+.activity-count {
+    font-weight: 600;
+    color: var(--accent-color, #3498db);
+    text-align: center;
+    min-width: 80px;
+}
+
+.activity-dates {
+    max-width: 450px;
+}
+
+.dates-container {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+}
+
+.date-badge {
+    display: inline-block;
+    padding: 0.25rem 0.5rem;
+    background-color: var(--badge-bg, #e8f4f8);
+    color: var(--badge-text, #2980b9);
+    border-radius: 4px;
+    font-size: 0.875rem;
+    white-space: nowrap;
+}
+
+.show-more-btn,
+.show-less-btn {
+    padding: 0.25rem 0.5rem;
+    background-color: transparent;
+    color: var(--link-color, #3498db);
+    border: 1px solid var(--link-color, #3498db);
+    border-radius: 4px;
+    font-size: 0.875rem;
+    cursor: pointer;
+    transition: all 0.2s;
+}
+
+.show-more-btn:hover,
+.show-less-btn:hover {
+    background-color: var(--link-color, #3498db);
+    color: white;
+}
+
+.btn-close {
+    padding: 0.5rem 1.5rem;
+    background-color: var(--secondary-color, #95a5a6);
+    color: white;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 1rem;
+    transition: background-color 0.2s;
+}
+
+.btn-close:hover {
+    background-color: var(--secondary-color-dark, #7f8c8d);
+}
+</style>
+
diff --git a/frontend/src/views/MembersView.vue b/frontend/src/views/MembersView.vue
index ba052f5..9366b82 100644
--- a/frontend/src/views/MembersView.vue
+++ b/frontend/src/views/MembersView.vue
@@ -120,6 +120,7 @@
                             <td>{{ member.email }}</td>
                             <td>
                                 <button @click.stop="openNotesModal(member)">Notizen</button>
+                                <button @click.stop="openActivitiesModal(member)" class="btn-activities">Übungen</button>
                             </td>
                         </tr>
                     
@@ -143,6 +144,13 @@
         @confirm="handleConfirmResult(true)"
         @cancel="handleConfirmResult(false)"
     />
+    
+    <!-- Member Activities Dialog -->
+    <MemberActivitiesDialog
+        v-model="showActivitiesModal"
+        :member="selectedMemberForActivities"
+        :club-id="currentClub"
+    />
 </template>
                 </tbody>
             </table>
@@ -205,6 +213,7 @@ import ConfirmDialog from '../components/ConfirmDialog.vue';
 import ImageViewerDialog from '../components/ImageViewerDialog.vue';
 import BaseDialog from '../components/BaseDialog.vue';
 import MemberNotesDialog from '../components/MemberNotesDialog.vue';
+import MemberActivitiesDialog from '../components/MemberActivitiesDialog.vue';
 export default {
     name: 'MembersView',
     components: {
@@ -212,7 +221,8 @@ export default {
         ConfirmDialog,
         ImageViewerDialog,
         BaseDialog,
-        MemberNotesDialog
+        MemberNotesDialog,
+        MemberActivitiesDialog
     },
     computed: {
         ...mapGetters(['isAuthenticated', 'currentClub']),
@@ -271,7 +281,9 @@ export default {
             showInactiveMembers: false,
             newPicsInInternetAllowed: false,
             isUpdatingRatings: false,
-            showMemberInfo: false
+            showMemberInfo: false,
+            showActivitiesModal: false,
+            selectedMemberForActivities: null
         }
     },
     async mounted() {
@@ -483,6 +495,10 @@ export default {
         closeNotesModal() {
             this.showNotesModal = false;
         },
+        openActivitiesModal(member) {
+            this.selectedMemberForActivities = member;
+            this.showActivitiesModal = true;
+        },
         openImageModal(imageUrl, memberId) {
             this.selectedImageUrl = imageUrl;
             this.selectedMemberId = memberId;
@@ -915,4 +931,21 @@ table td {
     min-width: 2rem;
     text-align: center;
 }
+
+/* Button Styles */
+.btn-activities {
+    margin-left: 0.5rem;
+    background-color: #28a745;
+    color: white;
+    border: none;
+    padding: 0.5rem 1rem;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 0.9em;
+    transition: background-color 0.2s ease;
+}
+
+.btn-activities:hover {
+    background-color: #218838;
+}
 </style>